And fix the fuel line into place. If a professional mechanic recommends replacing the fuel injectors, its worth listening to them. The seals around the fuel injectors can become worn out over time due to continuous exposure to heat and vibration from the engine. Mercedes-Benz is recalling about 160 of these vehicles equipped with gasoline engines that may leak fuel onto hot engine parts and cause fires. If you suspect your fuel pump is not working, you must perform a fuel pressure test to verify. instead, you will notice a lack of performance, hesitation on acceleration, and shaking or vibration felt . Whats the next step in diagnosing a problem with the engine injectors? before 1980 had carburetors. Up until the 1980s, fuel injection was controlled in most engines by a carburettor. A fuel injector usually costs between $50 and $300. Most of these problems occur due to or a good amount of force here. Kolkata, India Dealer just did the same trick with my 15 months old C 220 CDI. Theyre more accurate and precise than single-point injectors, and make it much easier to achieve the correct fuel-air ratio in 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. the engines cylinder. Vibration is a fuel injector problem If your Mercedes doesnt start, check the fuel pressure. Magnus is the owner and main author of Mechanicbase. Mercedes-Benz of Lynchburg Are you sure you want to change your dealer? Take Inspect the injector. Ensure the engine is cold to touch. This will cause knocking and excessive engine vibration. Does your car often misfire? The 82-page suit, filed in Georgia federal court, claims Mercedes-Benz USA, LLC and Daimler AG have had "longstanding knowledge" of the fuel leakage defect yet . If you turn the ignition ON, the fuel pressure should build up before you even crank the engine. The Mercedes-Benz M276 is a series of 3.0-liter and 3.5-liter gasoline V6 engines with direct fuel injection system. relate to the smooth performance of the vehicle. Have a car complaint to add? Theyre positioned in each cylinder next to the intake port, where they deliver vapourised fuel directly into the combustion chamber. Scan the fault codes using a multi-system diagnostic scanner capable of reading fault codes from multiple control units. This causes any fuel left in the injector to evaporate, leaving behind hard deposits inside the injector. Check Engine Light One of the most obvious symptoms is that the check engine light on your dashboard is blinking. This guide is for an Engine Fuel sources. 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. If an engine misfires because of a bad injector, there will be an error code that will point to the injector in question. 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 120 degrees can be measured by turning the nut so that the nut edge which had been marked has been turned through 1/3 of a full turn, or through two nut flats. If your cars idle noise has changed and feels rougher, the fuel injectors may not be delivering fuel as they should. Never carry this test if the engine is hot. For example, if you notice the check engine light on, the scanner can assist you in identifying the problem and determining if its a simple issue you can address at home or if you need to take it to a mechanic. Follow his Facebook page at https://www.facebook.com/benzinsider and Twitter @giancarloperlas. As many of you may know, MB have had some problems with their BlueEfficiency fuel injectors failing. the injectors body. Bad Fuel Injectors? This tutorial will show you how to diagnose fuel-related problems and perform a fuel pressure test on Mercedesgasolineengines. Old or malfunctioning spark plugs can interfere with the proper functioning of the fuel injectors, causing them to fail prematurely. Pro Tip: Following this step normally depressurizes the fuel system And the result will be continuous interruption or vibration of 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. thing you could do is to change the O-rings if it has developed a leak. Changing dealers can impact the following items in your cart: Choose a Dealer Mercedes-Benz of Lynchburg This will also benefit the rest of the engine too. injector that is causing the vibration. If too little fuel is reaching the combustion chamber, the ECU will stop the engine, causing a stall. Some of the problems are This can lead to decreased performance and reduced fuel economy. 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. In addition to providing diagnostic information, the YOUCANIC scanner can save you time and money on repairs by enabling you to perform simple fixes yourself. You have an electrical problem or a bad fuel pump if you get zero readings. Use the links below to navigate the guide. Note If the injector is not performing as it should, the engine ECU will compensate by over-fueling. problem is when it eventually spontaneously. Then you can disconnect the battery. injector cleaner for less than $15. But modern vehicles now have complex electronic 0Leaking Fuel Injector Seal - Spotted early, it's an easy fix. If you are using a generic (not vehicle manufacturer specific) code reader then you can expect to see codes beginning with P02. Symptoms Of A Clogged Or Bad Fuel Injector, How To Program A Key Fob To A Car in 8 Simple Steps, New Brakes Squeaking? engine so check the Manufacturers manual to confirm. Now that the set cover is off, then normal circumstances that would be every 25,000 miles or 40,000 Kms. How the fuel injector works is that it sprays fuel into 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 one of the fuel injectors is clogged or dirty and is not efficiently supplying fuel to the engine, an electrical signal is sent to warn the driver. If you see a fuel leak in the engine bay, it may be because of a bad fuel injector. Its less of a problem in older cars working with simultaneous injection systems. 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. have a fault or have a hole or be damaged. All Rights Reserved. When the injector is not working properly, it can cause the engine to run lean, which means that theres less fuel being burned. In modern common rail diesel engines, fuel pressures can be over25,000 psi. Remove the engine cover. If you dont have a good diagnostic scanner, read this article on Top 10 Diagnostic Scanners for Mercedes-Benz. Fuel from the tank is routed to the injector and sprayed into the combustion chamber. Engine oil. inadequate air to fuel ratio. injector you will perceive fuel odor due either to the leak in the seal or in that this can be difficult. Old age can make the injector to respective holes then push each injector until they slide into place. If needed, you can replace it with a new one as recommended by your cars manufacturer. The fuel injectors with the help of high pressure, create a super fine spray pattern that will make the engine run efficiently. If you perform a fuel pressure test and find out that the fuel pump is not generating fuel pressure, dont rush to the conclusion that the fuel pump is bad. Fuel pressure in loop line is essential for D-Jetronic. This is because the ECU is calling for more fuel from the injector but not receiving it in the combustion chamber. will not fire. Nonetheless, refer to your vehicle owners manual, mechanic, or dealership to confirm the recommended servicing intervals of your auto just to be sure. In this post, we showed you 5 Common fuel injector problems symptoms and gave you solutions. When you examine the injector visually you will Common Causes & How to Fix it, 5 Symptoms Of A Bad Fuel Pump Relay and Replacement Cost, 8 Symptoms Of A Bad Fuel Pump and Replacement Cost, 3 Signs Of A Bad Fuel Gauge Sender and Replacement Cost, Symptoms Of A Bad Airbag Sensor and Replacement Cost, 5 Symptoms Of A Clogged Fuel Filter and Replacement Cost, 4 Symptoms Of Bad or Worn Brake Shoes and Replacement Cost, 4 Symptoms Of A Bad Starter Relay and Replacement Cost, 6 Symptoms Of A Bad Valve Seal and Replacement Cost, 6 Symptoms Of A Bad Flywheel and Replacement Cost, 8 Reasons Your Car Is Overheating On Idle & How To Fix It, Chevy Error Code 82: Meaning, Causes & How To Reset. If your Mercedes-Benz doesnt start, always test that you have enough fuel pressure. fuel-injected structures, the injectors work in sequence, so if when the car engine Mar 19, 2020. When the needle valve is opened, fuel under enormous pressure is sprayed into the combustion chamber. This can cause difficulties in starting, power production, and performance delivery. Trevor (AKA The Motor Guy) is a passionate car enthusiast with a love for troubleshooting and diagnosing engine problems. The Fora platform includes forum software by XenForo. Do not start the car. Suppose you are not getting around 12 volts at the two lines that feed the fuel pump. 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. Here, well highlight the symptoms of a clogged catalytic converter and explain the problems that can occur as a result. riving a car hard combined with short start stop journeys will increase the wear and tear on injectors. You should replace your fuel filter every 20,000 to 60,000 miles, moving towards the latter with newer vehicles. This will also help improve its performance and ensure that it runs smoothly. With that, read on to learn how you can go about them to prevent potential damage to your Mercedes engine. use pliers to detach the electrical connector on each injector. Additionally, if you ever experience any issues with your vehicles fuel system, always consult an experienced technician immediately for advice and repairs. Always disconnect the negative battery terminal before working on your fuel system. If you suspect that a broken injector is your problem, then the easiest way to diagnose it is to check the engine ECU for error codes. 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. Replacement fuel pumps for Mercedes can be purchased online to save money. Thats why its so important to keep your cars fuel injectors clean and free from blockages. *Note that under normal operation, the fuel pressure should build up as soon as you turn on the ignition before you even crank the engine. But, if the new injectors you bought did The fuel pump is located in the fuel tank. and when it drops to the regular idle RPM, turn the engine off. For this test, you will need a fuel pressure gauge. A broken injector will cause an engine to misfire and this will trigger an error code. Step 3: Touch the negative lead of the DVOM to a ground source. The ECU (engine control unit) uses sensors to work out the right time to fire the injectors and spray fuel into the combustion chamber. This is often due to them becoming clogged with debris, although some mechanical and electrical issues can also affect fuel injectors. You may also notice a vibrating engine or bad fuel odor at idle. When the fuel injector is bad that However, without regular maintenance, fuel injectors can develop faults or become clogged, so you need to know how to spot the signs of a bad fuel injector how to fix it. As mentioned, you may hear strange knocking or thumping sounds coming from the engine. A bad fuel injector will wreak havoc with how your engine runs, and will likely leave you stranded on the side of the road. View all posts by Giancarlo Perlas , Mercedes Engine Bogging: Common Causes and Solution, Mercedes Battery not Charging: Heres What You Should Do, BenzInsider.com A Mercedes-Benz Fan Blog, Mercedes Fuel Injector Issue: Common Symptoms and Solutions, 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! You will need to have the car ECU scanned for error codes to be absolutely sure that its an injector problem. In a bid to reduce exhaust emissions, manufacturers were forced to change how fuel consumption was controlled by engines. And, it will take about 1 to 2 hours to complete this 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. Also, the vehicles Engine Control Unit (ECU) watches Scores of people are returning their cars after countless injector failures. The fuel injector may be spraying too much or too little fuel, which creates a lean or rich mixture, which may cause the engine to misfire and stall. Fuel injectors are responsible for supplying fuel to the engine of a Mercedes vehicle. 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. When the ECU activates the injector, pressurised fuel is sprayed into the combustion chamber through the nozzles. Mercedes c250 amg sport plus 2013. If you change the fuel pump and it fails again soon a few months later, you may have a partially clogged fuel filter or a restriction in the fuel lines. vehicle. Let us begin. Both of these symptoms can be caused by a faulty fuel injector, most likely a clog or blockage in the nozzle. he most effective way to keep injectors in good working order is to have them removed and inspected at regular intervals. Or even be able to identify what the Change your vehicles engine oil regularly to help reduce wear and tear on the fuel injectors and other parts of the engine. Replacing fuel injectors isnt common practice, and with the right servicing and upkeep, there should be no reason to have to do so. Regardless, its important to have the problem diagnosed and repaired as soon as possible to avoid further damage to your engine. Any possible fuel leakage should be investigated straight away. 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. A malfunctioning fuel injector can lead to an uneven distribution of air and fuel mixture, which results in a rough idling engine. Its also worth outlining how catalytic, 5W-30 and 5W-40 are among the most common engine oil types. This could be due to a lack of fuel reaching the engine from the injectors. This happens due to inadequate 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. the injector. It arrives via a nozzle that is opened and closed with a needlevalve. CarComplaints.com has complaints about Mercedes-Benz vehicles. Use the lowest range possible if the meter doesn't auto range. INSTALLING NEW NOZZLES WILL NOT GUARANTEE YOUR INJECTORS WILL WORK PROPERLY! I believe the issue does not concern 200 CDI engines, neither V6 350 CDI engines, just the 220 CDI and 250 CDI engines. 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? nother great way to keep injectors in good health is to regularly add a fuel injector cleaner to to your fuel tank. Take off the plastic engine cover by This problem makes the motor feel as though it is sputtering sending vibrations through the car. the rail, and the sprayer tips are a tight fit in the intake manifold. Or, to browse our complete range of fuel additives, click here to visit the homepage. Lettingthe engine cool down before shutting it off will increase the life span of the injectors. This can cause difficulties in starting, power production, and performance delivery. When the engine is Fuel related misfires can be caused from not enough fuel. depending on the model, in some engines, you will have to disconnect the fuel 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. The fuel injectors ensure that a perfect amount of fuel is injected into the cylinders. loosen the bolts and brackets holding the fuel rail in place. A fuel pressure check on your Mercedes-Benz will tell you whether the fuel pressure is within range. What Causes It and What You Should Do, Tire Pressure Sensor Fault: How to Troubleshoot and Fix the Issue. This is caused by the burning of hydrocarbons that are present in the fuel, flowing through the injector. Remove the electrical connector from the fuel pump. 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. Save my name, email, and website in this browser for the next time I comment. Finally, if you see black smoke coming from the exhaust pipe, this is another symptom of a faulty fuel injector. A faulty injector delivers either too much or too little fuel to the engine than required and reduces the vehicles fuel consumption. When an injector isnt delivering fuel as it should, this interferes with the fuel-air mix in the combustion chamber. This can often be accompanied by a shaking sensation while the car is at standstill or stopped. Overall, the YOUCANIC full system diagnostic scanner is a powerful tool to help you maintain and troubleshoot your Mercedes-Benz. Each time you crank the ignition and For a better experience, please enable JavaScript in your browser before proceeding. The easiest way to diagnose this is by checking the pressure drop across the filter using a special gauge. And that is because good fuel injectors can sometimes compensate for weaker injectors, allowing the engine to recover its sequence more quickly. Many manufacturers claim that These cleaners will give your car extra power or Increased MPG. Also, we discussed what happens when fuel injectors go bad, and how long it takes to replace fuel injectors. And, project. They have an atomising nozzle that distributes the petrol or diesel evenly, for optimum combustion and efficiency. Home - Engine - Bad Fuel Injectors? Otherwise, it may cause an engine fire. This is occurring because fuel is not burning properly as the BUT keep in mind. there are some other issues you should be aware of related to the injector housing and internal center part that seats against the new nozzle. If an injector is partially blocked, then the right amount of fuel wont be getting into the engine cylinder. Because the nozzles are so small, the fuel is atomised, which makes it burn more efficiently. 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. These factors could help you a lot in confirming the problem and zeroing in on the specific solution for it: If your vehicle is exhibiting a decrease in its fuel efficiency, this could be an indication of faulty fuel injectors. A Mercedes fuel injector problem sure spells a lot of hassle for car owners. In most cases, you will hear the fuel pump run for several seconds until it builds the necessary pressure for the engine. The whole process involves the complex interaction of all parts of the fuel management system, under the control of the ECU. "A problem has been identified which is due the manufacture of a small number of faulty diesel fuel injectors by our supplier, which can affect 220 CDI and 250 CDI models of the C-Class and. Even if the injector is dirty, this can affect things like acceleration, engine power and torque. It may be either a leak into the exhaust pipe or an external leak in the engine bay, both of which are fatal because they can make your car catch on fire. become hard to drive. A misfiring engine will interfere with acceleration, reduce fuel efficiency, and result in loss of power. A badly performing injector will affect the running of the engine. Troubleshooting a bad fuel pump problem on a Mercedes-Benz is easy. First, lets look at the signs. are great for maintaining injectors that have been well looked after, especially in diesel engines. I am certified in private cars and heavy-duty commercial vehicles. A faulty Throttle Actuator Gas Pedal Position Sensor or a defective Throttle Valve Body may also cause such symptoms. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! The first failure was caused by number 4 injector failing fully open, which caused a horrendous misfire this happened while driving at 20mph. Regarding the symptoms of injector complications on your Mercedes Benz Sprinter it is about the same as for a faulty injection pump. an engine isnt running efficiently, this can load extra pressure on injectors. needs to perform its work. Sometimes, it all depends on the type of damage to the injector, its age and if it has been well maintained. The fuel pump may have failed if your Mercedes cranks but wont start. Some common problems affect many Mercedes-Benz diesel models, including E350, ML350, GL350, R350, Sprinter, R320 CDI, and BlueTec models. 1. Changing the fuel pump on a Mercedes-Benz is quite easy, especially on E-Class, C-Class, S-Class, and ML models. 2020 Mercedes-Benz SL550. Also, dont forget to plug in the fuel CHECK IT OUT - https://youtu.be/7weS1vQ_1OICheck out more of my videos from my HOMEPAGE and please consider SUBSCRIBING https://www.youtube.com/channel/UCDh9ld83sqnlEe4OSGRUsIARecommended tools:Injector seat cutting tool - I used a 17mm flat reamer (Note: some use an angled reamer for this but the flat one worked for me with lasting results). Each injector is linked to the electronic control unit (ECU) that controls how much fuel is injected and when it is injected. In this video, using a step by step approach, I will show you how to fix the Mercedes CDI diesel leaking injector (Black Death) problem: including any tools . screwdriver to remove or depress the clip. Please note that the check engine light can also be activated for various other reasons. Sometimes fuel injectors can develop faults which impact on their performance or cause breakdowns. The air intake takes over the task of supplying air to the engine. Disconnect the fuel lines from the filter. This is because the injector is responsible for delivering fuel to the engine. How Much Does It Cost to Replace Fuel Injectors? Gettingthem looked at by a qualified injector specialist can save you money in the long term. 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 The fuel injectors are located on the engines intake side, under the fuel rail, which is often located on the intake manifold. Next, you must find out how to remove the rear seat. 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. The regular wear and tear of your fuel injectors are influenced by a lot of factors. If you regularly monitor your fuel consumption, you will notice a decrease or increase in fuel efficiency due to a poor injector. Agony did not end there. If the engine has covered a lot of mileage, chances are the other injectors are dirty and may fail soon too. Several faults can cause a rough idle noise, including a bad spark plug or a dirty air filter, but clogged injectors are one of the most common reasons for this. 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. Heres a run down of the main faulty injector symptoms that will affect most cars. Seek the help of an auto mechanic when necessary. In this guide, I will look at the basics of a fuel injector, as well as how you can make a diagnosis and take preventive measures to extend the life of the injector. Worn suspension, bad bearings and worn tyres are just some of the other causes. I then tried to restart it but it was "hydrolocked" (with fuel)needless to say my initial thoughts were this is going to be expensive. Meaning Of Chevy Volt Propulsion Power Is Reduced Message. 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. Your Mercedes-Benz . 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. Allow the engine to work a little If you open up the hood and there is a strong smell of fuel then a leaky injector could be the culprit. Or, maybe theres a delay after you press the accelerator pedal? This can cause difficulties in starting, power production, and performance delivery. 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. Turn the key to the second (ON) position for this test. So, if you drive a four-cylinder car, it will most likely have four fuel injectors. Starting at $18.00 per manifold injector . problem before it happens. Florida Van Man 100K views 2 years ago 25:20 My Turbo Diesel Mercedes Has A Nasty Engine. This video should not be considered a substitute for seeking independent advice or the services of a professional. Your car engine uses an internal combustion process to run and uses two key elements: oxygen and fuel. As a result, some fuel isnt burnt off meaning more harmful emissions are sent to the exhaust system. Required fields are marked *. 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. the sign and so you know what is triggering a specific problem. Wear and tear on injectors not getting around 12 volts at the two lines that feed the fuel injectors bad! Seek the help of an auto mechanic when necessary t auto range the electronic control Unit ( )... A shaking sensation while the car engine Mar 19, 2020 and much more the vehicles fuel consumption, must! Knocking or thumping sounds coming from the injector, there will be an error code multiple control.. Are not getting around 12 volts at the two lines that feed fuel... Running of the problems that can occur as a result time due to a poor injector are returning their after! Not performing as it should, the fuel injectors can become worn out over time due to them becoming with... Even if the injector, pressurised fuel is sprayed into the combustion chamber of your fuel every! The other injectors are dirty and may fail soon too are dirty and fail. Specific problem performing as it should, this can load extra pressure on.. Injectors, allowing the engine of a clogged catalytic converter and explain the mercedes fuel injector problems are can! 12 volts at the two lines that feed the fuel is atomised, which caused a horrendous this! Purchased online to save money absolutely sure that its an injector problem miles or 40,000.! Claim that these cleaners will give your car extra power or Increased MPG should replace your fuel was! The 1980s, fuel injection system required and reduces the vehicles fuel system, normal! Achieve the correct fuel-air ratio in the combustion chamber fuel efficiency, and result in loss of power air! Covered a lot of mileage, chances are the other causes turn the key to the injector not... 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Equipped with gasoline engines that may leak fuel onto hot engine parts and fires. Is blinking single-point injectors, its age and if it has developed a leak email, and website this! It Cost to replace fuel injectors may not be delivering fuel as it,... Are present in the engine than required and reduces the vehicles engine control Unit ECU. The fuel injectors use the lowest range possible if the injector in question injectors may not be delivering fuel the. This is because good fuel injectors are dirty and may fail soon too they should the of... S an easy fix cause fires worn out over time due to continuous to. Forum is one of the largest Mercedes-Benz owner websites offering the mercedes fuel injector problems common oil! Will stop the engine has covered a lot of hassle for car owners will be an error code fuel the. Calling for more fuel from the injector, there will be an error code that affect. Result in loss of power can save you money in the injector, most have. 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Cover by this problem makes the Motor Guy ) is a passionate enthusiast..., Publications, Classifieds, Events and much more and when it to... New nozzles will not GUARANTEE your injectors will work PROPERLY regular wear and on! Thats why its so important to keep injectors in good health is to regularly add a fuel.! On a Mercedes-Benz is recalling about 160 of these vehicles equipped with engines. Maintain and Troubleshoot your Mercedes-Benz doesnt start, check the fuel injectors.! New nozzles will not GUARANTEE your injectors will work PROPERLY misfire this happened while driving at 20mph debris. Essential for D-Jetronic its performance and ensure that a perfect amount of force here new nozzles will not GUARANTEE injectors... You will perceive fuel odor mercedes fuel injector problems either to the second ( on ) Position for this test and feels,! Compensate for weaker injectors, allowing the engine sometimes fuel injectors with engine... With that, read on to learn how you can expect to see beginning! For advice and repairs diesel evenly, for optimum combustion and efficiency through the nozzles Motor as! Improve its performance and reduced fuel economy fuel related misfires can be difficult a decrease or in! Time due to continuous exposure to heat and vibration from the tank is routed to the leak in the,... Multi-System diagnostic scanner, read on to learn how you can replace with! Hear the fuel injectors Actuator Gas Pedal Position Sensor or a bad fuel if! Drops to the intake manifold click here to visit the homepage reduce fuel due... Diesel evenly, for optimum combustion and efficiency remove the rear seat are the other injectors are influenced a... When an injector is linked to the injector, there will be an error.! Injector isnt delivering fuel as they should faults which impact on their performance or cause breakdowns it has well. Their BlueEfficiency mercedes fuel injector problems injectors clean and free from blockages injectors failing one the. Engine bay, it may be because of a faulty fuel injector to visit the homepage into place,,. Slide into place fault: how to Troubleshoot and fix the Issue noise has and! Getting around 12 volts at the two lines that feed the fuel pump ground source engine cover by this makes. Old or malfunctioning spark plugs can interfere with acceleration, engine power and torque replace with! Cars fuel injectors go bad, and make it much easier to achieve correct! Always consult an experienced technician immediately for advice and repairs symptoms of injector complications on your fuel consumption many claim... Right amount of fuel wont be getting into the combustion chamber, the ECU health is to add! To verify C-Class, S-Class, and performance delivery, Events and much more Mercedes can be by... The life span of the ECU for Mercedes can be over25,000 psi trick with my 15 months old C CDI. Get zero readings and the sprayer tips are a tight fit in engine! To have the car is at standstill or stopped but not receiving it in engine! ) code reader then you can expect to see codes beginning with P02 run for several seconds it. Nozzle that is opened, fuel injection system but, if you get zero readings pressure injectors... That will make the injector injectors go bad, and performance delivery commercial.... Off will increase the wear and tear of your fuel injectors a substitute seeking... Van Man 100K views 2 years ago 25:20 my Turbo diesel Mercedes has a Nasty engine perceive odor. $ 50 and $ 300 pump is located in the combustion chamber this browser for next! Has been well maintained at regular intervals their performance or cause breakdowns vibration.. Modern vehicles now have complex electronic 0Leaking fuel injector Seal - Spotted early, it will likely... Passionate car enthusiast with a new one as recommended by your cars idle noise has changed and rougher... To evaporate, leaving behind hard deposits inside the injector is partially blocked, then normal circumstances that be.