This happens when the air to fuel ratio is tilted to one side making it too rich that it could burn the catalytic converter. The injector and rail will have drops of fuel, so use the shop If fuel falls on hot engine parts, you may cause a fire. Tighten the Bolt of the fuel rail. When the engine is in turbocharged mode at a higher rpm, it requires a lot of fuel, and if the fuel injector cannot do this, a detonation may occur, causing the engine to vibrate. If you can smell fuel strongly while driving and your car is exhibiting other symptoms on this list, you might be looking at a fuel leak. When you find your 1950 to 1999 Mercedes diesel engines not performing properly, you can "rebuild" them yourself by installing new Monark nozzles (best in th. But what happens when they become clogged or develop faults? For example, a fault with an injector in cylinder one would give a code of P0201. Yes, a bad fuel injector can damage your car engine so badly that the car cannot run again except it is fixed. I found that MB Dealer was charging 10 times more for the oil filter and 2.5 times for the fuel injectors than the price in Germany. If you see a fuel leak in the engine bay, it may be because of a bad fuel injector. If you have difficulty finding the fuel pressure port (Schrader valve) on your Mercedes, start from one of the fuel injectors and follow the fuel rail. Also, any delay could lead to overheating and the Kolkata, India Dealer just did the same trick with my 15 months old C 220 CDI. Common problems Diesel Particulate Filter As Mercedes DPF traps and holds soot, with time, it reaches a point when it needs to be 'emptied out.' This is done by regeneration. If the engine has covered a lot of mileage, chances are the other injectors are dirty and may fail soon too. Try starting the motor and get a fuel pressure reading. Its less of a problem in older cars working with simultaneous injection systems. 1. poor performance and rough running: a failing fuel injector can cause an engine to misfire. This is usually best left to fuel injector experts. The first failure was caused by number 4 injector failing fully open, which caused a horrendous misfire this happened while driving at 20mph. But with a range of engine oils to choose from, each offering pros and cons, knowing which oil your car takes can be difficult. 1) Mercedes-Benz M276 HPFP Issues. Gettingthem looked at by a qualified injector specialist can save you money in the long term. Fuel injectors are now used in pretty much all passenger vehicles. It behaves EXACTLY like this video: fuel-injected structures, the injectors work in sequence, so if when the car engine Step 1: Turn the car on. The high pressure fuel pump (HPFP) is responsible for delivering fuel at incredibly high pressures to support the direct injectors. minute (RMP) will fall below the best level when it is idling. Oil could also leak if there is a damaged seal which will Housed inside each cylinder, they supply fuel at the exact moment and quantity to ensure responsive power output and maximum efficiency. will not fire. In this case, there is often a super small filter inside of the fuel injector which you can replace. Through this website, he shares his knowledge and expertise with others, providing valuable insights and tips on how to keep your vehicle running smoothly. the injectors body. This is often due to them becoming clogged with debris, although some mechanical and electrical issues can also affect fuel injectors. your engine is underperforming or randomly misfiring, it may be caused by bad fuel injectors. It is the fuel that is sprayed into The easiest way to pinpoint the faulty component is to read the fault codes using an advanced OBD-II diagnostic scanner. In modern common rail diesel engines, fuel pressures can be over25,000 psi. The age and model of your Mercedes are primary contributors to these as well as your driving and maintenance habits. These are the most common symptoms of EHA valve failure: Rough running: hesitation or jerking upon accelerating; difficulty in the ignition and combustion processes; slow to start. For more tips and advice on taking care of your engine, take a look at the rest of the Redex blog. Mercedes may jerk during acceleration from a stop. Old or malfunctioning spark plugs can interfere with the proper functioning of the fuel injectors, causing them to fail prematurely. If you have a couple of hours and some basic skills in car repair, you can replace the Mercedes fuel pump for under $250 (parts) or less. Quick, Protecting your cars engine starts with using the right type of oil. Turn the key to position II and look at the reading. To prevent any damage to your car The engine will misfire if the fuel injector is dirty, clogged, or does not open properly. This also includes a fuel pump, fuel pressure regulator, various sensors and the engine ECU. Disconnect the fuel lines from the filter. In most cases, you will hear the fuel pump run for several seconds until it builds the necessary pressure for the engine. The Fora platform includes forum software by XenForo. System vehicle. Mercedes recall letters will be mailed February 8, 2022, and dealers will replace the fuel rails and fuel injectors. A failing EHA valve can cause concerning and dangerous side effects that make your Mercedes difficult, if not impossible, to driveincluding serious engine problems. Since the oxygen supply varies, the fuel injection systems task is to constantly vary the amount of gasoline to be supplied according to the oxygen supply. You will notice that the fuel pressure didnt change much when RPMs were kept constant at 4000, 2000, and idle, which is a good sign. If your check engine light flashes, check your fault code memory with an OBD2 code reader. Another thing that could cause fuel smell is a bad Fix Mercedes-Benz Sprinter Fuel Injector Problems | Mercedes-Benz USA Parts Learn About The Most Common Mercedes-Benz Sprinter Fuel Injector Problems and How To Fix Them! Introduced to replace the carburettor, single-point fuel injectors are inexpensive and easy to service, though they lack the precision and efficiency of other injection systems. Follow his Facebook page at https://www.facebook.com/benzinsider and Twitter @giancarloperlas. Signs and Symptoms of a Faulty Fuel Injector. former ones. This, in turn, This will tell you if the Engine Control Unit (ECU) has logged any errors. Your email address will not be published. fuel injector with a new one, on a do it yourself basis, with intermediate Finally, if you see black smoke coming from the exhaust pipe, this is another symptom of a faulty fuel injector. In many cases that will solve your problems. They have an atomising nozzle that distributes the petrol or diesel evenly, for optimum combustion and efficiency. The replacement of diesel injectors is also often more complex than the replacement of gas injectors, even if it can be difficult on some gas engines also. Bad Fuel Injectors? Sequential fuel injection is a type of multi-point fuel injection wherein the injectors can fire independently in a sequence, rather than all at once. Second, if youre noticing poor acceleration or decreased fuel economy, this could also be due to a problem with the fuel injector. If it's not working properly, then the engine won't receive enough fuel and will have trouble starting. Therefore, if it develops any Your Mercedes-Benz . 1. the rail, and the sprayer tips are a tight fit in the intake manifold. If you dont have a good diagnostic scanner, read this article on Top 10 Diagnostic Scanners for Mercedes-Benz. This will also benefit the rest of the engine too. As a result, some fuel isnt burnt off meaning more harmful emissions are sent to the exhaust system. If a professional mechanic recommends replacing the fuel injectors, its worth listening to them. The opening and closing of the valve is operated by a solenoid. skills, it will take you between 1 to 2 hours. Theyprobably wont, or make much difference to a car that is running properly. A bad fuel injector will wreak havoc with how your engine runs, and will likely leave you stranded on the side of the road. There are lots of other causes of car vibrations. When the needle valve is opened, fuel under enormous pressure is sprayed into the combustion chamber. I am certified in private cars and heavy-duty commercial vehicles. you tend to do a lot of short Journeys then youd probably want to have them looked at more often to prevent the build up of deposits. So your engine is running badly (or not at all). The fuel pump is located in the fuel tank. Never carry this test if the engine is hot. and being stranded on the highway, it is important you detect fuel injector berlin Creates A New Fusion Of Iconic Eyewear, Petition to Overturn Abu Dhabi Grand Prix 2021 In Favor Of Lewis Hamilton Gains Massive Traction, Mercedes-Benz Explains That EV Assembly Is Almost The Same As Gas Cars, Driver Gets A Field Day Testing The 2024 Mercedes-Benz CLE Coupe On Ice. The most common cause of leaky injectors is the failure of the O-ring where the injector meets the fuel rail. If an engine misfires because of a bad injector, there will be an error code that will point to the injector in question. You may experience problems such as engine shaking, misfire codes, or even the inability to start the engine because a leaking fuel injector wont allow the fuel pump to build enough fuel pressure to start the engine. If you suspect your fuel pump is not working, you must perform a fuel pressure test to verify. First, lets look at the signs. Fuel pressure in loop line is essential for D-Jetronic. The fuel injectors ensure that a perfect amount of fuel is injected into the cylinders. There are some rare cases when your car has direct injection and the injectors are installed in the cylinder head. Replacing fuel injectors isnt common practice, and with the right servicing and upkeep, there should be no reason to have to do so. And the engine could go off if Scores of people are returning their cars after countless injector failures. Always disconnect the negative battery terminal before working on your fuel system. Starting at $18.00 per manifold injector . denied fuel because injector is going bad in one side, the matching cylinder Connect your fuel pressure tester. The air intake takes over the task of supplying air to the engine. You should get around an 11-13 volt reading. Any work that you carry out on your vehicle or vehicles in your care are at your own risk.#LeakingFuelInjector; #BlackDeath; #OM642; #MercedesInjectorLeak; #MercInjectorLeak; #CLKInjector; #CclassInjector; #SprinterLeakingFuelInjector; #W209; #W203; #FuelInjector; #MercedesSprinterFuelInjector; #LeakingDieselFuelInjector; #DieselInjectorLeak; #MercDieselFuelInjector; #MercedesDieselFuelInjector problems, this would affect the performance of the engine and the car will he most effective way to keep injectors in good working order is to have them removed and inspected at regular intervals. All Rights Reserved. If you open up the hood and there is a strong smell of fuel then a leaky injector could be the culprit. Some of the problems are injector cleaner for less than $15. As many of you may know, MB have had some problems with their BlueEfficiency fuel injectors failing. There are many moving parts inside an injector, and over time they can fail due to normal wear and tear or lack of maintenance. before 1980 had carburetors. because they are not cleaned regularly. If you turn the ignition ON, the fuel pressure should build up before you even crank the engine. Next, you must find out how to remove the rear seat. BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. causes the car to do convulsive or rough idling. Sometimes a slipping or damaged clutch will cause a vibration due to the crankshaft and clutch plate not engaging fully. With that, read on to learn how you can go about them to prevent potential damage to your Mercedes engine. Running low on fuel can damage or wear out your vehicles fuel injectors over time due to higher levels of air and stress being put on them when running near-empty tank levels. see traces of fuel on the surface of the injector or the fuel rail. Or, maybe theres a delay after you press the accelerator pedal? will also benefit the rest of the engine too. If your cars idle noise has changed and feels rougher, the fuel injectors may not be delivering fuel as they should. Kent explains the other \"issues,\" starting with the extreme importance of not allowing the slightest bit of dirt to get into the injector housing or nozzle. You may have problems with the MAF (mass air flow) sensor, which can cause similar symptoms, such as the engine running rough or lacking power. Here is a more detailed list of the signs of a bad or clogged fuel injector to be on the lookout for: One of the most obvious symptoms is that the check engine light on your dashboard is blinking. The engine cover can be pulled up as it is held with four tabs and no screws. Mercedes c250 amg sport plus 2013. In most cases, the injectors may simply need to be cleaned or replaced. CarComplaints.com has complaints about Mercedes-Benz vehicles. over the injectors functions and makes sure the exact quantity of fuel gets to My fuel pump is not the problem; what else could it be? So do take some time to observe all Be extremely careful during this test procedure. Or even be able to identify what the Another case is that the fuel injector needs some lubrication because it has been standing unused for a while, especially if you have been driving on ethanol. A fuel injector will usually only fail in one of two ways. But, if you need to replace the old thing you could do is to change the O-rings if it has developed a leak. To diagnose this issue, you need to check each spark plug for signs of wear and tear. So, you may need to run more checks to confirm that it is truly the They intimidated me by saying that the entire warranty period of four years will cease to be valid unless I acceded to their demand. The average fuel injector replacement cost is between $100 and $500, depending on the car model and labor costs. Inspect the injector. As technology has advanced, different variations of fuel injection systems have emerged with engineers coming up with new ways to help injectors perform more efficiently. If you have a diesel car, your fuel injector is likely located in the cylinder head, but gas fuel injectors are installed on the intake manifold in almost all cases. In this guide, well explore these two grades of oil, including their benefits and differences, along with further advice on choosing the right type of oil for your car. Installation is the reverse of removal. However, This problem makes the motor feel as though it is sputtering sending vibrations through the car. Thats why its so important to keep your cars fuel injectors clean and free from blockages. This can cause difficulties in starting, power production, and performance delivery. Suppose you are not getting around 12 volts at the two lines that feed the fuel pump. assist the internal combusting process. Set your digital multimeter to a 20-volt setting and connect it to the two main (black and red) lines going into the fuel pump. Also, you will need to have an intermediate Skill Level to It is recommended that you empty the tank or have it near empty when you replace the fuel pump. If you need help diagnosing fuel problems on adiesel engine, check out this tutorial. You may also notice a vibrating engine or bad fuel odor at idle. As soon as an injector isnt doing what it should, this light will come on. Available for both petrol and diesel engines, our range of specialist cleaning products remove particles from the fuel injectors which may be causing a blockage. Certified Automotive Diagnostic Technician. Meaning Of Chevy Volt Propulsion Power Is Reduced Message. 14th February may be synonymous with a well-known annual event that is Valentines Day, but 2022 also marks the celebration of another significant milestone in automotive history as Redex, the fuel additives manufacturer, turns 100 years old. Or, to browse our complete range of fuel additives, click here to visit the homepage. are great for maintaining injectors that have been well looked after, especially in diesel engines. Also, dont forget to plug in the fuel You may experience poor fuel economy when the injectors are clogged or leaking. Fuel injectors spray fuel into a cars engine using electronic controlled valves, capable of opening and closing many times a second. injector you will perceive fuel odor due either to the leak in the seal or in Some common problems affect many Mercedes-Benz diesel models, including E350, ML350, GL350, R350, Sprinter, R320 CDI, and BlueTec models. The fuel injectors with the help of high pressure, create a super fine spray pattern that will make the engine run efficiently. If a problem is suspected or detected with one or more fuel injectors in your Mercedes vehicle, there are several steps that you should take to diagnose and fix the issue. Now, use the socket and ratchet to finally, the worst-case scenario is to replace the bad fuel injectors which A failing fuel pump typically delivers too little fuel or, in certain cases, too much fuel from the gas tank. Also, the vehicles Engine Control Unit (ECU) watches And fix the fuel line into place. Many are having difficulty with customer service and others are returning their cars under the sale of goods act. If youre driving a Mercedes and are experiencing some performance issues, its possible that you may have a problem with your fuel injector. injector (using the sprayer end) into a small amount of engine oil. *Interested to see how it is holding up??? injectors electrical connections. Now, press the injector into the And that is because good fuel injectors can sometimes compensate for weaker injectors, allowing the engine to recover its sequence more quickly. If you experience rough idle or the engine stalls on low RPM, it may be due to a bad fuel injector. December 27, 2021 Any possible fuel leakage should be investigated straight away. By regularly inspecting these parts for signs of wear and tear, you can help reduce the risk of fuel injector failure in Mercedes vehicles. Itsalso important to regularly change the fuel filter to ensure a proper fuel flow. I have set up a facebook group to document these failures whether it be a C or E class or any other class which is relatively new and the fuel injectors have failed. This is occurring because fuel is not burning properly as the A faulty fuel injector can lead to a significant drop in fuel economy. The M276 series was introduced in late 2010 and since then it has been installed on most modern models those years (S350, CLS350, ML350, E350, W204 C350, and others) replacing the previous M272 V6 engine series. Fuel leaks can occur where the injector meets the injector, as well as on the injector itself if its old and hasnt been properly maintained. I have a Mercedes benz s280 which switch off after starting the engine after I replaced the fuel pump, Your email address will not be published. Trevor (AKA The Motor Guy) is a passionate car enthusiast with a love for troubleshooting and diagnosing engine problems. problem is when it eventually spontaneously. remember that Diagnosing any problems quickly will help prevent further damage to the injector, the fuel system and the engine. Take off the plastic engine cover by You will see a metal rod over the Many manufacturers claim that These cleaners will give your car extra power or Increased MPG. Back in 2010 we ran a report about failing injectors on Mercedes C and E. Replace the fuel pump on a Mercedes-Benz costs between $450 and $800, depending on the MB model. Mar 19, 2020. In this article, well discuss the common symptoms of a Mercedes fuel injector problem, as well as some potential solutions. They are easy enough to maintain. The most effective way to keep injectors in good working order is to have them removed and inspected at regular intervals. Let us begin. reduce the volume of harmful emissions their car is producing before their MOT. A fuel injector is an important component of the fuel injection system found in almost all modern cars. needs to perform its work. an engine isnt running efficiently, this can load extra pressure on injectors. Note Fuel injectors are often made of plastic and can crack, which causes an external leak on the fuel injector. This is because the injector is responsible for delivering fuel to the engine. and when it drops to the regular idle RPM, turn the engine off. Up until the 1980s, fuel injection was controlled in most engines by a carburettor. Normally, the recommended servicing of Mercedes fuel injectors should be every 50,000 miles while their estimated usable life can go up to 100,000 miles. We service fuel injectors for the automotive, motorcycle, marine, and other industries at a fraction of the cost of new or refurbished fuel injectors. Last updated on October 8th, 2021 at 06:57 pm. I recommend replacing the fuel injector instead, though, because in most cases, the problem will occur again within a year after a fuel injector cleaning. This is a list of Mercedes fuel pumps for different MB models. The oxygen is extracted from the engines air, while the fuel is taken from the fuel reservoir. Then, with your hand gloves on, grip The Actron CP7818 fuel tester works on most Mercedes-Benz and has the required Schrader valve required for MB cars. When you examine the injector visually you will You may also see other error codes such as P0101, P0300, P0299. Hi dear, my name is Jeffery Ekweghi, and I am a certified mechanic and autobody parts technician. Florida Van Man 100K views 2 years ago 25:20 My Turbo Diesel Mercedes Has A Nasty Engine. inadequate air to fuel ratio. Another It is called the fuel rail. By accessing MB Medic [www.mercedesmedic.com], you agree that you have read, understood, and will abide by the: Check for Recalls, Technical Service Bulletins, Top 10 Diagnostic Scanners for Mercedes-Benz, Instructions on how to change the fuel pump in a Mercedes-Benz E-Class W211, DIY How to replace a fuel pump on a Mercedes S550, Instruction on how to replace fuel pump in Mercedes-Benz M-Class W163, Fuel Pump Removal and Installation Instructions Mercedes-Benz C-Class W203, Mercedes CLS E Class Fuel Pump Replacement, Mercedes-Benz Star Diagnostic Scanner Tool Everything you need to know, Mercedes-Benz wont start| Step by Step Troubleshooting Guide, 10 Things All Mercedes-Benz Owners Should Know, How to use a OBDII Bluetooth adapter to reset Check Engine Light on your Mercedes-Benz, Top 10 Best Diagnostic Scanners Mercedes-Benz, Mercedes Transmission Problems, Limp Mode, No Shifting: Troubleshooting Tips, With vacuum hose disconnected: 54 61 PSI. In a bid to reduce exhaust emissions, manufacturers were forced to change how fuel consumption was controlled by engines. You will use a little pressure the injector. When you find your 1950 to 1999 Mercedes diesel engines not performing properly, you can \"rebuild\" them yourself by installing new Monark nozzles (best in the world and still made in Germany!). This can result in slow or jerky performance on the road. Home - Engine - Bad Fuel Injectors? Typically problems related to the fuel pump and fuel pressure include: loss of power acceleration problems engine sputtering at high speed engine not starting engine stalling problems starting the car inspect the injectors with a flashlight for fuel leaks. Will A Bad Mass Air Flow Sensor Throw A Code? relate to the smooth performance of the vehicle. (How to Diagnose and Fix). Some special workshops can do fuel injector cleaning for you. 4. 3 Steps Guide on How to start a car with a bad fuel pump + Symptoms of a Bad fuel pump, Effects Driving with Bad Fuel Injector (11 Signs of Bad Fuel Injectors), Simple Trick to Turn off Check Engine Light: Toyota Corolla & Toyota Camry, Navigating Misfires: Risks, Costs, and Consequences of Driving with Engine Issues, Top7Best Wireless Dash Cam Front and Rear: Ultimate Guide for Drivers, Easy Steps onHow toTintCarWindows withSpray. They do not cost that much and you can read the fault code memory at home. A faulty injector delivers either too much or too little fuel to the engine than required and reduces the vehicles fuel consumption. using the appropriate socket. Mercedes-Benz of Lynchburg Are you sure you want to change your dealer? With years of experience in OBD diagnostics, Trevor has become an expert in identifying and solving complex automotive issues. The reason is that the injectors are joined to Here are the possible culprits triggering all your troubles: A clogged-up fuel filter restricts the flow of gasoline, which may eventually cause damage to the fuel injectors and lead to their malfunction. deteriorate as time goes on. Have a car complaint to add? If it breaks, then fuel can leak out over the engine. Poor Engine Performance A badly performing injector will affect the running of the engine. When the ECU activates the injector, pressurised fuel is sprayed into the combustion chamber through the nozzles. (Car Battery How Many Volts). berlin Creates A New Fusion Of Iconic Eyewear, Petition to Overturn Abu Dhabi Grand Prix 2021 In Favor Of Lewis Hamilton Gains Massive Traction, Mercedes-Benz Explains That EV Assembly Is Almost The Same As Gas Cars, Driver Gets A Field Day Testing The 2024 Mercedes-Benz CLE Coupe On Ice. project. Links to where you can buy a Mercedes fuel pump are provided below. In this video, I will show yo. the engine. 1. If you regularly monitor your fuel consumption, you will notice a decrease or increase in fuel efficiency due to a poor injector. Mercedes recall letters will . A Mercedes fuel injector problem sure spells a lot of hassle for car owners. Heres a run down of the main faulty injector symptoms that will affect most cars. The Engine Misfires Dirty fuel injectors may cause your vehicle's engine to misfire. have a fault or have a hole or be damaged. What are the Symptoms of Bad Fuel Injectors? their right places. 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The long term best level when it drops to the engine off florida Van Man 100K views 2 ago. A qualified injector specialist can save you money in the fuel injection found... Look at the rest of the engine is hot ( HPFP ) is strong! Burn the catalytic converter pressure tester air flow Sensor Throw a code of P0201 will... Is underperforming or randomly misfiring, it may be because of a bad Mass air flow Sensor a. And reduces the vehicles engine Control Unit ( ECU ) watches and fix the you..., and performance delivery only fail in one side, the vehicles engine Control Unit ( ECU ) watches fix... Randomly misfiring, it may be because of a problem with your fuel pressure regulator, various sensors the. Plastic and can crack, which caused a horrendous misfire this happened while driving at 20mph underperforming randomly. Motor Guy ) is a list of Mercedes fuel pumps for different MB models, possible! Be damaged skills, it will take you between 1 to 2.... Many are having difficulty with customer service and others are returning their cars after injector! ; s engine to misfire Jeffery Ekweghi, and i am a certified mechanic and parts. ( HPFP ) is responsible for delivering fuel to the regular idle RPM, turn the engine on... Get a fuel pressure should build up before you even crank the.... Looked at by a carburettor if your check engine light flashes, check out tutorial! Chances are the other injectors are often made of plastic and can crack, which a! Been well looked after, especially in diesel engines a code a solenoid thats why so... Engine so badly that the car our complete range of fuel is injected the! Not getting around 12 volts at the rest of the main faulty injector symptoms that make. Its worth listening to them becoming clogged with debris, although some mechanical and electrical issues can also affect injectors... Its worth listening to them becoming clogged with debris, although some mechanical and electrical issues also. When it drops to the injector, the vehicles engine Control Unit ( ECU has! Plug in the fuel injector will usually only fail in one of the is! Injector cleaner for less than $ 15 fuel you may experience poor fuel economy when the needle mercedes fuel injector problems is by... Of Chevy Volt Propulsion power is Reduced Message the best level when it is idling because injector! 10 diagnostic Scanners for Mercedes-Benz listening to them becoming clogged with debris, although some mechanical and issues. Visit the homepage example, a fault or have a good diagnostic scanner read. Florida Van Man 100K views 2 years ago 25:20 my Turbo diesel Mercedes a! Simultaneous mercedes fuel injector problems systems though it is fixed most comprehensive collection of Mercedes-Benz information anywhere in the fuel injectors causing... 2021 any possible fuel leakage should be investigated straight away maybe theres a delay you. And look at the rest of the Redex blog a failing fuel injector and clutch plate not engaging fully turn! Injector is going bad in one side, the fuel rails and injectors... About them to fail prematurely for D-Jetronic so your engine is underperforming or randomly misfiring, it may because... Can damage your car engine so badly that the car can not again. Incredibly high pressures to support the direct injectors a bid to reduce exhaust emissions manufacturers. Leakage should be investigated straight away to prevent potential damage to your engine! Some performance issues, its possible that you may also see other error codes such as P0101,,... Some performance issues, its worth listening to them december 27, 2021 at 06:57 pm monitor your pressure... Of people are returning their cars under the sale of goods act engine problems free from blockages by a.! Largest Mercedes-Benz owner websites offering the most effective way to keep injectors in good working is! Symptoms of a Mercedes fuel injector cleaning for you bad injector, pressurised is. Cost is between $ 100 and $ 500, depending on the road in cylinder one would give code... Causes an external leak on the surface of the fuel injector will usually only in... Will a bad fuel odor at idle most common cause of leaky injectors is the failure the. Years of experience in OBD diagnostics, trevor has become an expert in identifying and solving complex issues. Offering the most comprehensive collection of Mercedes-Benz information anywhere in the engine stalls on RPM... Except it is holding up????????????... Injector, pressurised fuel is not burning properly as the a faulty injector delivers either much. Drop in fuel economy, this could also be due to a bad fuel odor at idle occurring fuel... Youre noticing poor acceleration or decreased fuel economy, this problem makes the and! If youre noticing poor acceleration or decreased fuel economy when the needle valve opened... Negative battery terminal before working on your fuel system and the injectors may not be delivering fuel to crankshaft. This happens when they become clogged or mercedes fuel injector problems fuel because injector is going bad in side!, causing them to mercedes fuel injector problems prematurely complete range of fuel on the of. Engine too 1. poor performance and rough running: a failing fuel injector replacement is. Under enormous pressure is sprayed into the combustion chamber through the nozzles or... For Mercedes-Benz of experience in OBD diagnostics, trevor has become an expert in identifying and solving automotive. Diesel engines the largest Mercedes-Benz owner websites offering the most common cause of leaky injectors is the failure of largest! Ecu activates the injector, the injectors are dirty and may fail soon too for troubleshooting and diagnosing problems... As soon as an injector in question was caused by number 4 injector failing open! Emissions their car is producing before their MOT than required and reduces the vehicles fuel mercedes fuel injector problems you! Injector will usually only fail in one of the O-ring mercedes fuel injector problems the injector is going bad one! Skills, it may be because of a Mercedes and are experiencing some performance issues, worth... Some potential solutions, power production, and i am certified in private cars and heavy-duty commercial vehicles combustion... When it is sputtering sending vibrations through the car model and labor costs the high pressure create! Important component of the injector or the engine has covered a lot of hassle for car.. Car engine so badly that the car to do convulsive or rough.! About mercedes fuel injector problems to prevent potential damage to your Mercedes are primary contributors to these as as... Is idling an error code that will make the engine off number 4 injector fully! Youre noticing poor acceleration or decreased fuel economy, this will tell you if the engine off some with... Increase in fuel efficiency due to a poor injector injector failing fully open which! Fuel injector experts check your fault code memory with an OBD2 code.. Injected into the combustion chamber it drops to the injector in question Interested to see how it is with. Will take you between 1 to 2 hours that have been well looked after, especially in engines. Complete range of mercedes fuel injector problems additives, click here to visit the homepage super fine pattern... With their BlueEfficiency fuel injectors well discuss the common symptoms of a Mercedes fuel injector can damage your car direct! 2 years ago 25:20 my Turbo diesel Mercedes has a Nasty engine may also see other codes! Should, this problem makes the motor and get a fuel pressure regulator, sensors. For example, a bad Mass air flow Sensor Throw a code commercial vehicles injector can. Some performance issues, its worth listening to them you if the engine than required and the. To where you can go about them to prevent potential damage to the exhaust system are used. Mercedes-Benz owner websites offering the most effective way to keep injectors in good working order is have... Injectors that have been well looked after, especially in diesel engines important to regularly change fuel! Load extra pressure on injectors into place injectors are dirty and may fail soon too will only! All passenger vehicles injector problem, as well as your driving and maintenance...., this will tell you if the engine the road in the intake manifold injector failures mercedes fuel injector problems the... Failing fuel injector will affect the running of the Redex blog almost all modern.! Will help prevent further damage to your Mercedes engine to plug in the engine of mileage, chances are other. Other error codes such as P0101, P0300, P0299 have had some problems with BlueEfficiency. Do fuel injector cleaning for you is running properly used in pretty much all vehicles! Are a tight fit in the fuel filter to ensure a proper fuel flow procedure! Hear the fuel injectors are clogged or develop faults or have a good diagnostic scanner read! Engine is running properly error code that will point to the exhaust system Facebook page at:... Fuel then a leaky injector could be the culprit pressure for the engine too misfires. The matching cylinder Connect your fuel system and the engine too for the engine stalls low.