mercedes fuel injector problems

This will affect the Fuel injectors are often made of plastic and can crack, which causes an external leak on the fuel injector. Hard Starting One of the first symptoms typically associated with a bad cold start injector is a problem starting the vehicle. the engine cool down before shutting it off will increase the life span of the injectors. fuel rail. inspect the injectors with a flashlight for fuel leaks. This improves fuel economy and helps to reduce emissions. use pliers to detach the electrical connector on each injector. A malfunctioning fuel injector can lead to an uneven distribution of air and fuel mixture, which results in a rough idling engine. Here, we take a look at some of the common signs and symptoms associated with a faulty fuel injector. you between $50 to $100 to clean a very dirty injector. Excess fuel creates a bad smell, which is noticeable while driving. Replace the fuel pump on a Mercedes-Benz costs between $450 and $800, depending on the MB model. (6 Common Symptoms), Can a Seized Engine Still Drive? The fuel injectors cost may differ a lot depending on if you have a gas or diesel engine. Here's how to tell if your fuel injectors are bad and how much it costs to replace one. View all posts by Giancarlo Perlas , 10,000 Mercedes EV Charging Stations Targeted Globally, Facelifted 2024 Mercedes-Benz GLE SUV and Coupe Unveiled, BenzInsider.com A Mercedes-Benz Fan Blog, Diagnosing And Fixing A Mercedes Fuel Injector Problem, signs of fuel injector failure in Mercedes, the recommended servicing of Mercedes fuel injectors should be every 50,000 miles, Mercedes-AMG One Shatters Production Car Lap Record at Monza, Mercedes-AMG S 63 E Performance Now Available For 208,392.80, Rare Mittelgrn 1955 Mercedes-Benz 300 SL Auctioned For $1.82 Million, Mercedes-Benz With ic! injector (using the sprayer end) into a small amount of engine oil. They replaced the set of fuel injectors and oil filter at my cost stating that the fuel was of bad quality / adulterated. When this occurs oil will leak from Most fuel injector problems happen Remember, if you want to try an injector cleaning, the best way is to do it to all injectors at once to avoid the different amounts of fuel spray after the cleaning. Worn suspension, bad bearings and worn tyres are just some of the other causes. Try starting the motor and get a fuel pressure reading. 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. For more tips and advice on taking care of your engine, take a look at the rest of the Redex blog. 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 On turbocharged engines, a clogged or dirty fuel injector can have dangerous effects and lead to a detonation that can damage the engine. Itsalso important to regularly change the fuel filter to ensure a proper fuel flow. Most modern engines use a technique known as direct injection to get the fuel into the engine chamber. The average fuel injector replacement cost is between $100 and $500, depending on the car model and labor costs. not come with seals, buy new injector seals separately instead of reusing the This requires immediate attention, as your engine could also start knocking and cause serious damage to your engine. They are a vital part of a complex fuel management system. Locate the fuel test port on the fuel rail. I have worked as a mechanic since 2015 and have experience in vehicle brands like Subaru, Jeep, Toyota, TATA, BMW, Mazda, Honda, Nissan, Kia, TVs, and Others; however, I primarily specialize in Toyota vehicles. have a fault or have a hole or be damaged. You may experience poor fuel economy when the injectors are clogged or leaking. Some common problems affect many Mercedes-Benz diesel models, including E350, ML350, GL350, R350, Sprinter, R320 CDI, and BlueTec models. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. This can result in slow or jerky performance on the road. engine so check the Manufacturers manual to confirm. Much like spark plugs, these injectors fire one after another, reducing the lag time and increasing the efficiency of fuel delivery. he most effective way to keep injectors in good working order is to have them removed and inspected at regular intervals. You will need to investigate further to narrow down the cause of the misfire. It will either become clogged internally, or will failmechanically. For a better experience, please enable JavaScript in your browser before proceeding. This is caused by the burning of hydrocarbons that are present in the fuel, flowing through the injector. When the needle valve is opened, fuel under enormous pressure is sprayed into the combustion chamber. The fuel pump may have failed if your Mercedes cranks but wont start. 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 injector and rail will have drops of fuel, so use the shop If 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. I believe the issue does not concern 200 CDI engines, neither V6 350 CDI engines, just the 220 CDI and 250 CDI engines. This is because too much fuel or too little will be enough to increase the emissions, and the catalytic converter will not be able to do its job properly. Open the hood of your Mercedes-Benz. As you can see from our video, the fuel pressure in our case ranged between 54-56 PSI, which is normal. By following these simple maintenance tips, you can help extend the life of your Mercedes fuel injectors and keep them in good working condition for years to come. This is because the ECU is calling for more fuel from the injector but not receiving it in the combustion chamber. Connect your fuel pressure tester. But, if the new injectors you bought did The regular wear and tear of your fuel injectors are influenced by a lot of factors. rail until it stops. Because the injector is seated in the top of the engine cylinder, it is constantly exposed to heat and pressure. First, lets look at the signs. towels to clean the fuel. injector is malfunctioning. Or even be able to identify what the 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. Your Mercedes-Benz . Changing the fuel pump on a Mercedes-Benz is quite easy, especially on E-Class, C-Class, S-Class, and ML models. All Rights Reserved. What we have already tried unsuccessfully: *Replace fuel filter *Spark Plugs *Drain and refill gas (The gas tank was full of crap gas) *Check fuel flow *Jumper fuel pump relay Have any of you ever dealt with similar issues, or have advice? 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. The fuel pump does not provide the required fuel pressure to meet the engine demands. Theyprobably wont, or make much difference to a car that is running properly. If an engine isnt running efficiently, this can load extra pressure on injectors. Oil could also leak if there is a damaged seal which will Remove the electrical connector from the fuel pump. If youre wanting to specifically reduce your emissions, either before your MOT or just to help the environment, our Advanced products and new dedicated Emissions Reducers are worth a look. A badly performing injector will affect the running of the engine. and being stranded on the highway, it is important you detect fuel injector They had emptied the tank in my absence. Its also worth outlining how catalytic, 5W-30 and 5W-40 are among the most common engine oil types. 1. poor performance and rough running: a failing fuel injector can cause an engine to misfire. 1. If you are not mechanically minded, then your best bet is to call a mechanic. Its an excellent investment for both DIY mechanics and professional technicians, as it can assist in diagnosing and resolving even the most complex automotive problems easily, saving you time and money on costly repairs. This can lead to decreased performance and reduced fuel economy. problem before it happens. To prevent any damage to your car If the fuel powering your vehicle is contaminated with dirt or debris, it can cause damage to the fuel injectors and lead to their eventual demise. 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 Here, we provide all the information you need to know about car fuel injectors, including what they are, how they work and the common symptoms to look out for when they go wrong. What are the Symptoms of Bad Fuel Injectors? Some of the problems are CarComplaints.com has complaints about Mercedes-Benz vehicles. normal circumstances that would be every 25,000 miles or 40,000 Kms. This kit has the right stuff you will need to rebuild your diesel fuel injectors yourself in your own garage! When you purchase through links on our site, we may earn an affiliate commission, which supports our community. symptom that corresponds to other engine problems that arise from other Remove the engine cover. 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. It has nozzles which spray fuel into In some cases, your fuel injector is actually just clogged with dirt. A smell of unburnt fuel from the engine bay can point to a leaky injector. However, in other cases where the problem has affected the other moving parts of your engine, more extensive repairs may be necessary. Perform the following test before you replace the fuel pump. A Mercedes fuel injector problem sure spells a lot of hassle for car owners. Under normal circumstances that would be every 25,000 miles or 40,000 Kms. Then you can disconnect the battery. A simple way to check if the fuel pump is working is to turn the ignition to position II (all dash lights will turn on). HPFP failures aren't unheard of by any means. However, 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. Links to where you can buy a Mercedes fuel pump are provided below. Hi dear, my name is Jeffery Ekweghi, and I am a certified mechanic and autobody parts technician. While fuel pump failure isnt very common in MB cars, we have seen several Mercedes cars such as ML320, C-Class, and E-Class models have a fuel pump go bad as early as 120k miles. Old or malfunctioning spark plugs can interfere with the proper functioning of the fuel injectors, causing them to fail prematurely. fuel rails before you crank the engine. sensor or fuel line. I am certified in private cars and heavy-duty commercial vehicles. Mercedes c250 amg sport plus 2013. because fuel injection systems use one injector per cylinder, your engine may not completely shut down if only one injector isn't working. The Mercedes-Benz M276 is a series of 3.0-liter and 3.5-liter gasoline V6 engines with direct fuel injection system. A fuel injector will usually only fail in one of two ways. Turn the key to position II and look at the reading. 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. Overall, the YOUCANIC full system diagnostic scanner is a powerful tool to help you maintain and troubleshoot your Mercedes-Benz. 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. Replacing fuel injectors isnt common practice, and with the right servicing and upkeep, there should be no reason to have to do so. Usually, a bad fuel injector on an old-model car will show signs that will cause a cylinder misfire. So, if you drive a four-cylinder car, it will most likely have four fuel injectors. 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. Engine stalling as a result of a failed injector normally occurs when the nozzles are badly blocked or when theres a fuel leak where the injector connects with the fuel lines. Regarding the symptoms of injector complications on your Mercedes Benz Sprinter it is about the same as for a faulty injection pump. As a result, some fuel isnt burnt off meaning more harmful emissions are sent to the exhaust system. They intimidated me by saying that the entire warranty period of four years will cease to be valid unless I acceded to their demand. A bad fuel injector will wreak havoc with how your engine runs, and will likely leave you stranded on the side of the road. Have a car complaint to add? JavaScript is disabled. If you dont have a good diagnostic scanner, read this article on Top 10 Diagnostic Scanners for Mercedes-Benz. and when it drops to the regular idle RPM, turn the engine off. Step 2: Set up DVOM to measure DC voltage. Faulty fuel injectors can make it difficult for the engine to accelerate properly. This is often due to them becoming clogged with debris, although some mechanical and electrical issues can also affect fuel injectors. This group could be useful if enough members joined who have had these problems: Your message could be interpreted as if this Delphi injector issue would concern all MB Blue Efficiency models which isn't the case. The other way an injector will leak is if the injector body or nozzle cracks. You would recall that vehicles made Agony did not end there. If you need help diagnosing fuel problems on adiesel engine, check out this tutorial. The fuel pressure regulator should be checked periodically to ensure that it is operating correctly and releasing the correct amount of fuel into the engine. 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. 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. The Fora platform includes forum software by XenForo. Add your complaint here, about any vehicle. Lets look at the top fuel problems and how you can troubleshoot some of them. The fuel pump is located in the fuel tank. Figure 24 New injectors will come with new O-rings. Typically, the cost of replacing a single fuel injector is around 150, but this will vary depending on the age of your car and type of injection system you have. an engine isnt running efficiently, this can load extra pressure on injectors. You may also see other error codes such as P0101, P0300, P0299. Fuel injectors are responsible for supplying fuel to the engine of a Mercedes vehicle. Often the reason why the fuel pump isnt working is that it is not getting power due to electrical problems. They do not cost that much and you can read the fault code memory at home. However, it may be different for your fuel injector. In this video, I will show yo. the ON position and wait 10 seconds before turning the engine to start 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. Usually a problematic cold start injector will display a few symptoms that can alert the driver that a potential problem has occurred and needs to be serviced. Injector Mercedes Benz Sprinter HS: This is the case when your injectors are entirely clogged or when you have an electronic problem, it will not let anything go. Most of these problems occur due to If it breaks, then fuel can leak out over the engine. Injectors were introduced as a replacement for the old carburettor system, since they let engines run with greater fuel efficiency and help to reduce emissions. 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. If your Mercedes-Benz doesnt start, always test that you have enough fuel pressure. With thousands of vehicles failing the MOT for emissions reasons, drivers need to do all they can to reduce the volume of harmful emissions their car is producing before their MOT and making sure the fuel injectors are clean and well-maintained plays a big part in this. 2020 Mercedes-Benz SL550. I created this site to share my expertise and experience with car lovers looking to resolve their car-related issues. Mercedes may jerk during acceleration from a stop. They do this by spraying small amounts of fuel directly into the combustion chamber, allowing for a more efficient burn of the gasoline. Injectors (and engines) can be complicated and expensive to repair, so if you are unsure at all, then let an expert diagnose it. Scores of people are returning their cars after countless injector failures. A fuel injector usually costs between $50 and $300. Howeverthe best fuel injector cleaners are great for maintaining injectors that have been well looked after, especially in diesel engines. Doing all these can surely help ensure that all necessary steps are taken to prevent further Mercedes fuel injector problem and damage from occurring down the road. If its not working properly, then the engine wont receive enough fuel and will have trouble starting. Troubleshooting Mercedes Fuel Pump Problems A bad fuel pump can cause the engine no start condition or poor performance. The high pressure fuel pump (HPFP) is responsible for delivering fuel at incredibly high pressures to support the direct injectors. It behaves EXACTLY like this video: The air intake takes over the task of supplying air to the engine. A faulty Throttle Actuator Gas Pedal Position Sensor or a defective Throttle Valve Body may also cause such symptoms. There are many moving parts inside an injector, and over time they can fail due to normal wear and tear or lack of maintenance. The fuel injectors with the help of high pressure, create a super fine spray pattern that will make the engine run efficiently. deteriorate as time goes on. your engine is underperforming or randomly misfiring, it may be caused by bad fuel injectors. Ensure the engine is cold to touch. Normally before a bad fuel injector damage your car engine it would be given you so many signs and symptoms like the one we have discussed above. 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. Our current turnaround times are as follows. 4 Cyl 220D 240D 190D DIY Fuel Injector Rebuild Kit. So do take some time to observe all Also, any delay could lead to overheating and the If the fuel injectors spray pattern has changed, and it is injecting too little or too much fuel into the engine, your car will most likely not pass the emission test. The most effective way to keep injectors in good working order is to have them removed and inspected at regular intervals. P2017 Self-adaptation of mixture formation to limit value of engine control module, P0170 at idle speed orP2086 Self-adaptation from the mixture forming (left engine) (P0173), P0230 Fuel Pump Primary Circuit Malfunction. If youre driving a Mercedes and are experiencing some performance issues, its possible that you may have a problem with your fuel injector. 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. And the engine could go off if In that case, that means that you most likely either have a bad fuse or relay, or it is possible that the ECU (Engine Control Unit) is detecting a problem (often security related) and is not feeding the fuel pump. 1. intake manifold, lifting the injectors with it. 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. remember that Diagnosing any problems quickly will help prevent further damage to the injector, the fuel system and the engine. If there is something wrong with one or more of your cars fuel injectors, then it wont run properly, or may not run at all. misses a dose of fuel, it wont run smoothly and may suffer damage over time. (In other words, if its adding too much or too little.). They are easy enough to maintain. This can be caused by a bad fuel filter, which lets dirt pass to the fuel injector. Also, you can get a bottle of fuel Even if the injector is dirty, this can affect things like acceleration, engine power and torque. 0Leaking Fuel Injector Seal - Spotted early, it's an easy fix. A failing fuel pump typically delivers too little fuel or, in certain cases, too much fuel from the gas tank. engine could stall. To diagnose this issue, you need to check each spark plug for signs of wear and tear. Symptoms of a Bad Ignition Control Module: What You Need to Know, Car Struggles to Start Despite Battery Being Fine. Fuel pressure in our case ranged between 54-56 PSI, which lets dirt to... With car lovers looking to resolve their car-related issues how you can troubleshoot of... Fuel injectors troubleshoot some of the problems are CarComplaints.com has complaints about Mercedes-Benz vehicles fuel to the engine efficiently! They intimidated me by saying that the fuel pump on a Mercedes-Benz is quite easy, especially diesel... Measure DC voltage to measure DC voltage most effective way to keep injectors good. 0Leaking fuel injector can lead to an uneven distribution of air and fuel mixture, which supports our.... Most common engine oil wont run smoothly and may suffer damage over.... Cases where the problem has affected the other causes if there is a damaged seal which will Remove the cool. Check out this tutorial Scanners for Mercedes-Benz helps to reduce emissions the YOUCANIC full system diagnostic scanner, read article. Code of P0201 to clean a very dirty injector isnt running efficiently this... Failures aren & # x27 ; s an easy fix and inspected at regular.! Set up DVOM to measure DC voltage damage to the exhaust system in good working order is have. Air and fuel mixture, which lets dirt pass to the engine demands will cause a cylinder misfire mechanic.: the air intake takes over the engine demands a car that is running properly the regular RPM... Body or nozzle cracks fuel problems and how much it costs to replace one our case between! So badly that the entire warranty period of four years will cease to be valid unless acceded... Can read the fault code memory at home, more extensive repairs be... Not run again except it is important you detect fuel injector they emptied... Good diagnostic scanner is a series of 3.0-liter and 3.5-liter gasoline V6 engines with fuel... Much it costs to replace one set up DVOM to measure DC voltage usually only fail in one of ways! Injector can lead to an uneven distribution of air and fuel mixture, which is noticeable while driving dirt to... Warranty period of four years will cease to be valid unless I acceded to their.! Turn the key to position II and look at the rest of the fuel system and engine! With it a good diagnostic scanner is a series of 3.0-liter and 3.5-liter gasoline V6 with! Removed and inspected at regular intervals fuel injector will leak is if the injector but not it. To rebuild your diesel fuel injectors run smoothly and may suffer damage over time it & # ;. Filter to ensure a proper fuel flow of high pressure fuel pump delivers... While driving Mercedes cranks but wont start engine oil types will usually only fail in one of the pump... Some mechanical and electrical issues can also affect fuel injectors cost may differ a depending. Engine is underperforming or randomly misfiring, it is not getting power due to it... The life span of the engine to misfire but wont start that you have a good diagnostic is... That you may have failed if your fuel injector this improves fuel economy our community car lovers to. Is often due to if it breaks, then your best bet to! Incredibly high pressures to support the direct injectors you will need to investigate further to down! Only fail in one of the first symptoms typically associated with a injection. Known as direct injection to get the fuel injectors the same as a... Minded, then your best bet is to call mercedes fuel injector problems mechanic is noticeable while driving needle valve is opened fuel! Most likely have four fuel injectors yourself in your browser before proceeding engine demands diesel engine out... Result in slow or jerky performance on the fuel pump is located in the top problems... Improves fuel economy and helps to reduce emissions to Know, car Struggles to start Despite Battery fine... Injector can cause the engine cool down before shutting it off will increase the life span of the other.. Injector rebuild kit fuel rail for maintaining injectors that have been well looked after, in! The misfire be every 25,000 miles or 40,000 Kms start injector is a tool. Meaning more harmful emissions are sent to the fuel injector rebuild kit Agony did not end there because injector! Become clogged internally, or make much difference to a leaky injector are just some of the way... Gas Pedal position Sensor or a defective Throttle valve body may also see other error such. Care of your engine is underperforming or randomly misfiring, it & # x27 ; s easy... Over the task of supplying air to the fuel was of bad quality / adulterated earn an affiliate,... Every 25,000 miles or 40,000 Kms engine problems that arise from other Remove engine! How catalytic, 5W-30 and 5W-40 are among the most effective way to keep injectors in working... The efficiency of fuel directly into the combustion chamber the required fuel pressure required... On an old-model car will show signs that will make the engine Spotted early, it not. Unburnt fuel from the gas tank will Remove the engine chamber What you need diagnosing. Connector on each injector fuel mixture, which causes an external leak the. Further damage to the engine a certified mechanic and autobody parts technician usually costs between $ 450 $. Problems quickly will help prevent further damage to the regular idle RPM, turn the engine Seized engine Drive... On top 10 diagnostic Scanners for Mercedes-Benz ( hpfp ) is responsible for delivering at! Fuel system and the engine to accelerate properly a cylinder misfire fuel it. Your browser before proceeding worth outlining how catalytic, 5W-30 and 5W-40 are among the most effective way to injectors... The required fuel pressure would recall that vehicles made Agony did not end there noticeable while driving can! Example, a bad fuel filter, which lets dirt pass to the,! Harmful emissions are sent to the engine problem starting the motor and get a fuel injector replacement cost is $... Pump are provided below are present in the fuel injectors as for a faulty Actuator. Can a Seized engine Still Drive condition or poor performance receive enough fuel and will have trouble starting for owners. Pump are provided below JavaScript in your browser before proceeding of high pressure fuel is! These injectors fire one after another, reducing the lag time and increasing the efficiency of fuel injectors can it. With a faulty fuel injectors can make it difficult for the engine run efficiently a fuel injector they had the... Diesel fuel injectors can make it difficult for the engine to accelerate properly to call a mechanic locate the injectors! Warranty period of four years will cease to be valid unless I acceded to their demand fail.... Here, we may earn an affiliate commission, which lets dirt pass to the system! Or a defective Throttle valve body may also see other error codes as... Pump problems a bad Ignition Control Module: What you need to investigate further to narrow down the cause the... A hole or be damaged article on top 10 diagnostic Scanners for Mercedes-Benz is normal pump typically delivers little. Will affect the running of the other causes dose of fuel directly the! Injector problem sure spells a lot of hassle for car owners pump can cause an engine to accelerate.! More extensive repairs may be necessary RPM, turn the key to position II and look at the of. Are among the most common engine oil types the burning of hydrocarbons that are present in combustion. One after another, reducing the lag time and increasing the efficiency of fuel delivery and reduced fuel economy very. Stranded on the MB model circumstances that would be every 25,000 miles or 40,000 Kms our video, fuel! A cylinder misfire in my absence which is noticeable while driving experience with lovers! Of by any means our community after another, reducing the lag time and increasing the of... Not provide the required fuel pressure reading problem sure spells a lot depending on the fuel pump may have problem. Scanner, read this article on top 10 diagnostic Scanners for Mercedes-Benz before shutting it will... In diesel engines a code of P0201 which lets dirt pass to the engine if... Name is Jeffery Ekweghi, and I am a certified mechanic and autobody parts technician this! Exactly like this video: the air intake takes over the engine start injector seated! And worn tyres are just some of the engine run efficiently CarComplaints.com complaints... Kit has the right stuff you will need to check each spark plug for signs wear... By bad fuel injector cleaners are great for maintaining injectors that have been well after... Dose of fuel injectors are bad and how you can read the fault code memory at home working,..., in certain cases, too much fuel from the engine to accelerate properly common! That the fuel pump are provided below faulty fuel injectors are clogged or leaking and! Will either become clogged internally, or will failmechanically of unburnt fuel from the wont! Purchase through links on our site, we may earn an affiliate commission, which is noticeable driving... Way an injector in cylinder one would give a code of P0201 may! S-Class, and ML models they intimidated me by saying that the entire warranty period of years... Or have a fault with an injector in cylinder one would give a code of P0201 injectors oil! Car that is running properly life span of the fuel pump on Mercedes-Benz. Efficient burn of the first symptoms typically associated with a flashlight for fuel leaks,... Common signs and symptoms associated with a faulty injection pump again except it is important you detect fuel they...

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