In this video, I will show yo. By regularly inspecting these parts for signs of wear and tear, you can help reduce the risk of fuel injector failure in Mercedes vehicles. Here's how to tell if your fuel injectors are bad and how much it costs to replace one. You should get around an 11-13 volt reading. In most cases, the injectors may simply need to be cleaned or replaced. I am certified in private cars and heavy-duty commercial vehicles. Injectors (and engines) can be complicated and expensive to repair, so if you are unsure at all, then let an expert diagnose it. And what are the advantages of doing so? Here, we take a look at some of the common signs and symptoms associated with a faulty fuel injector. and when it drops to the regular idle RPM, turn the engine off. If you are using a generic (not vehicle manufacturer specific) code reader then you can expect to see codes beginning with P02. By sticking to your cars service schedule and having the oil and filters replaced regularly, its unlikely that youll ever need to fully replace its fuel injectors. This job requires you to be extremely careful because you will work near fuel, and there is always a fire risk. A Mercedes fuel injector problem sure spells a lot of hassle for car owners. 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. It is recommended that you empty the tank or have it near empty when you replace the fuel pump. The oxygen is extracted from the engines air, while the fuel is taken from the fuel reservoir. The slight delay is to allow the fuel pump to refill the lines and The best way to diagnose this is by running a diagnostics test on your cars engine. You should replace your fuel filter every 20,000 to 60,000 miles, moving towards the latter with newer vehicles. This is because the injector is not delivering the proper amount of fuel to the engine, causing it to run rich. Step 3: Touch the negative lead of the DVOM to a ground source. Although every effort is made to ensure that all the information is correct, there is no guarantee that this is the case. This is often due to them becoming clogged with debris, although some mechanical and electrical issues can also affect fuel injectors. Watch the video for more details. because they are not cleaned regularly. (6 Common Symptoms), Can a Seized Engine Still Drive? the ON position and wait 10 seconds before turning the engine to start If youre experiencing problems with your Mercedes-Benz, the YOUCANIC full system diagnostic scanner can provide invaluable assistance in troubleshooting the issues. line from the fuel rail to remove the rail. A faulty injector will cause the engine to misfire, and this will trigger the engine management light. Here are a few signs there might be something wrong with your fuel injectors. The opening and closing of the valve is operated by a solenoid. will also benefit the rest of the engine too. Lets look at the top fuel problems and how you can troubleshoot some of them. Note that a defective fuel injector (eBay link) can also be the root of many problems. The fuel injectors ensure that a perfect amount of fuel is injected into the cylinders. You may experience poor fuel economy when the injectors are clogged or leaking. see update vid link above! The first thing that you should do is check the fuel pump fuse. 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! 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. Back in 2010 we ran a report about failing injectors on Mercedes C and E. Regular oil and filter changes will go a long way towards maintaining a healthy engine. Because the injector is seated in the top of the engine cylinder, it is constantly exposed to heat and pressure. Its also worth outlining how catalytic, 5W-30 and 5W-40 are among the most common engine oil types. Additionally, the scanner can perform diagnostic tests on various systems, such as the ABS, airbag, and steering systems, to help identify the underlying cause of any issues. nother great way to keep injectors in good health is to regularly add a fuel injector cleaner to to your fuel tank. Heres a run down of the main faulty injector symptoms that will affect most cars. Mercedes Benz Fuel Injector Problems | Facebook. Using a 17 mm fuel line wrench (J-47483) or a 17 mm open end wrench, tighten the high pressure fuel injector line nut at the transfer tube end by turning the nut through 120 degrees. Fuel injectors are often made of plastic and can crack, which causes an external leak on the fuel injector. Allow the engine to work a little Home - Engine - Bad Fuel Injectors? I will make a small commission for purchases, but it doesn't cost the buyer anything extra.Mercedes-Benz OM642 engine 3.0L v6 turbo cdi engineFitted to the following vehicles (to the best of my knowledge):Mercedes-Benz Sprinter van (2006Present)Jeep Grand Cherokee WK/WH (2005-2010 (Europe) 1-20072-2008)Jeep Commander XK/XH (2006-2010 (Europe)Mercedes-Benz C320 CDI (20052009)Mercedes-Benz E280 \u0026 E320 CDI/Bluetec (2007-2009) models 211.02 \u0026 022Mercedes-Benz C350 CDI (20092014)Mercedes-Benz CLK320 CDI (2005-2010)Mercedes-Benz E350 CDI/Bluetec (2010Present) Models 212.024Mercedes-Benz G350 CDI/Bluetec (2007Present)Mercedes-Benz GLK 350 CDI (20132015)Mercedes-Benz R320/350 CDI/Bluetec (2007Present) Models 251.122 \u0026 125Mercedes-Benz ML320/350 CDI/Bluetec (2007Present) Models 164.122, 125 \u0026 024Mercedes-Benz GL320/350 CDI/Bluetec (20062012) Models 164.822, 825, \u0026 824Mercedes-Benz GLC 350 d (2016-present)Mercedes-Benz S320/350 CDI/Bluetec (2005Present) Models 221.183Mercedes-Benz CLS320/350 CDI/Bluetec (20052018) Models 219.322; 218.326, 926, 394, 994, 323, 923, 393, 993Chrysler 300C (2006-2011) (Europe and Australia only)Mercedes-Benz Vito Van 120 cdi and Vito 204 Sports (2006Present UK)Mercedes-Benz GLC 350 D (2017Present EU)You can share this video using the following link: https://youtu.be/HV0XCpN76cgDISCLAIMERPlease note that this video and its content is intended for information purposes only. 1. your engine is underperforming or randomly misfiring, it may be caused by bad fuel injectors. However, causes the car to do convulsive or rough idling. needs to perform its work. Some special workshops can do fuel injector cleaning for you. If your check engine light flashes, check your fault code memory with an OBD2 code reader. Locate the fuel test port on the fuel rail. Howeverthe best fuel injector cleaners are great for maintaining injectors that have been well looked after, especially in diesel engines. 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. 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. Labor usually costs between $50 and 200$. The Mercedes-Benz M276 is a series of 3.0-liter and 3.5-liter gasoline V6 engines with direct fuel injection system. Remove the engine cover. Can a bad fuel pump or fuel regulator trigger the check engine light? because fuel injection systems use one injector per cylinder, your engine may not completely shut down if only one injector isn't working. your car has covered a lot of miles or if. 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. Never carry this test if the engine is hot. the RMP falls more than necessary. When you examine the injector visually you will Some of the problems are finally, the worst-case scenario is to replace the bad fuel injectors which The injector and rail will have drops of fuel, so use the shop UK link - https://amzn.to/338zKebUSA link - https://amzn.to/3HMEh7xCutting compound / wax - I used this on the cutter when cutting the seatUK link - Rocol RTD: https://amzn.to/2IZZXnUUSA link - BruteLube stick / wax: https://amzn.to/3QijzC5Slide Hammer / Injector removal tool - This is the exact kit that I use in the video. Mercedes recall letters will . thing you could do is to change the O-rings if it has developed a leak. When the needle valve is opened, fuel under enormous pressure is sprayed into the combustion chamber. poor fuel economy. stalling after you have pressed the accelerator, struggling to accelerate and Housed inside each cylinder, they supply fuel at the exact moment and quantity to ensure responsive power output and maximum efficiency. A failing EHA valve can cause concerning and dangerous side effects that make your Mercedes difficult, if not impossible, to driveincluding serious engine problems. Additionally, if you ever experience any issues with your vehicles fuel system, always consult an experienced technician immediately for advice and repairs. If you need help diagnosing fuel problems on adiesel engine, check out this tutorial. What are the Symptoms of Bad Fuel Injectors? the injectors body. Add your complaint here, about any vehicle. The air intake takes over the task of supplying air to the engine. It arrives via a nozzle that is opened and closed with a needlevalve. former ones. If fuel falls on hot engine parts, you may cause a fire. fuel injector. You will see a metal rod over the 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. Mercedes say that a new injector system for C Class and E Class diesels with the OM651 engine have now been fixed. skills, it will take you between 1 to 2 hours. This can be caused by a leaky injector causing the fuel pressure to drop in the fuel rail. JavaScript is disabled. As soon as an injector isnt doing what it should, this light will come on. Justremember that Diagnosing any problems quickly will help prevent further damage to the injector, the fuel system and the engine. In this article, well discuss the common symptoms of a Mercedes fuel injector problem, as well as some potential solutions. Diesel injectors are often very expensive, which can result in part costs of $400 or more. They are a vital part of a complex fuel management system. 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. Mercedes recall letters will be mailed February 8, 2022, and dealers will replace the fuel rails and fuel injectors. And that is because good fuel injectors can sometimes compensate for weaker injectors, allowing the engine to recover its sequence more quickly. Common Causes a Sprinter Won't Start. Step 2: Set up DVOM to measure DC voltage. In many cases that will solve your problems. If you are reinstalling any of the old injectors, always replace both the O-ring for the fuel rail (red arrow) and manifold (yellow arrow). Tighten the Bolt of the fuel rail. Now that the set cover is off, then In some cases, your fuel injector is actually just clogged with dirt. 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. (Car Battery How Many Volts). 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. Keep a fire extinguisher nearby in case of emergency. A bad fuel injector will wreak havoc with how your engine runs, and will likely leave you stranded on the side of the road. And, HPFP failures aren't unheard of by any means. Hard Starting One of the first symptoms typically associated with a bad cold start injector is a problem starting the vehicle. First off, if youre experiencing difficulty starting the engine, it could be due to a faulty fuel injector. A smell of unburnt fuel from the engine bay can point to a leaky injector. Usually, a bad fuel injector on an old-model car will show signs that will cause a cylinder misfire. Fuel related misfires can be caused from bad fuel. problem before it happens. their right places. The fuel pump does not provide the required fuel pressure to meet the engine demands. $227.00. This is caused by the burning of hydrocarbons that are present in the fuel, flowing through the injector. When you turn the ignition on, listen carefully to the rear seat (near the fuel tank). vehicle. As a direct injection (DI) engine the Mercedes M276 V6 uses a high-pressure fuel system. 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. They replaced the set of fuel injectors and oil filter at my cost stating that the fuel was of bad quality / adulterated. Gettingthem looked at by a qualified injector specialist can save you money in the long term. "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. The fuel injectors cost may differ a lot depending on if you have a gas or diesel engine. Otherwise, it may cause an engine fire. Although there are a few different reasons why a check engine light can switch on, it could be down to a fuel injector. This is because the injector is responsible for delivering fuel to the engine. This causes any fuel left in the injector to evaporate, leaving behind hard deposits inside the injector. (How to Diagnose and Fix). This, in turn, Oil could also leak if there is a damaged seal which will Also, you can get a bottle of fuel A Mercedes fuel injector problem sure spells a lot of hassle for car owners. INSTALLING NEW NOZZLES WILL NOT GUARANTEE YOUR INJECTORS WILL WORK PROPERLY! 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. 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 . Symptoms include a lack of acceleration when you press the gas pedal or a vehicle trying to stall. normal circumstances that would be every 25,000 miles or 40,000 Kms. Sometimes the problem can be caused by something else such as a bad ignition coil or a clogged fuel filter. Remember that ECU can only vary opening times of injectors to dose fuel. remember that Diagnosing any problems quickly will help prevent further damage to the injector, the fuel system and the engine. A fuel injector will usually only fail in one of two ways. an engine isnt running efficiently, this can load extra pressure on injectors. December 27, 2021 You want battery power flowing, but don't want the engine running. injector that is causing the vibration. means the engine will not get enough fuel in it. Attach the metal clip, if it has one. 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. become hard to drive. Mercedes c250 amg sport plus 2013. The average national cost for a fuel pump replacement across all vehicles is roughly between $611 and $894 (including parts and labor) depending on the age of your vehicle. With that, read on to learn how you can go about them to prevent potential damage to your Mercedes engine. It is the fuel that is sprayed into It is recommended that you should get them cleaned at regular intervals, to help prevent problems down the road. Here, we take a look at some of the common signs and symptoms associated with a faulty fuel injector. 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. between 50,000 and 100,000 miles. A faulty Throttle Actuator Gas Pedal Position Sensor or a defective Throttle Valve Body may also cause such symptoms. Links to where you can buy a Mercedes fuel pump are provided below. assist the internal combusting process. What was most shocking and unnerving was their reply when I had asked them how could they conclude the fuel was adulterated the reply was " by smelling ". Sometimes fuel injectors can develop faults which impact on their performance or cause breakdowns. But, if you need to replace the old By connecting to your cars onboard computer, the scanner can read fault codes and provide detailed information about any problems with your engine, transmission, brakes, and other systems. You may also notice a vibrating engine or bad fuel odor at idle. 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. On turbocharged engines, a clogged or dirty fuel injector can have dangerous effects and lead to a detonation that can damage the engine. This is a list of Mercedes fuel pumps for different MB models. If you suspect that your fuel consumption has changed, it may be due to a bad fuel injector. 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. symptom that corresponds to other engine problems that arise from other 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. them looked at by a qualified injector specialist can save you money in the long term. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. If the engine has covered a lot of mileage, chances are the other injectors are dirty and may fail soon too. the engine on time. fuel rails before you crank the engine. Will A Bad Mass Air Flow Sensor Throw A Code? As many of you may know, MB have had some problems with their BlueEfficiency fuel injectors failing. Old or malfunctioning spark plugs can interfere with the proper functioning of the fuel injectors, causing them to fail prematurely. So, if youre noticing problems including difficulty starting the engine, poor acceleration, decreased fuel economy, or black smoke coming from the exhaust pipe, then its likely that you need to have your fuel injectors serviced. This is often due to them becoming clogged with debris, although some mechanical and electrical issues can also affect fuel injectors. They do this by spraying small amounts of fuel directly into the combustion chamber, allowing for a more efficient burn of the gasoline. The fuel pump pushes petrol or diesel through the fuel lines to the injectors. Theyre more accurate and precise than single-point injectors, and make it much easier to achieve the correct fuel-air ratio in the engine. If you want to keep your car running, dont neglect the fuel injectors. A proposed class action says 2015-2019 model year Mercedes-Benz W205 vehicles, including the C300, suffer from a defect that can cause raw fuel to leak within the engine compartment. If your engine stalls on idle, that could also be a sign. 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. Seek the help of an auto mechanic when necessary. They have an atomising nozzle that distributes the petrol or diesel evenly, for optimum combustion and efficiency. How Much Does It Cost To Replace An Alternator. If, however, your injectors are in a very sorry state after years of neglect, you may have no choice but to replace them. project. Note that not all faults will trigger the check engine light. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more! 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 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. How the fuel injector works is that it sprays fuel into It has nozzles which spray fuel into A faulty fuel injector can lead to a significant drop in fuel economy. 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. engine could stall. A fuel injector takes over the task of supplying fuel to the cars engine, and usually, if the car has a bad fuel injector, it can cause a lot of problems. This is occurring because fuel is not burning properly as the inspect the injectors with a flashlight for fuel leaks. Our current turnaround times are as follows. The engine will misfire if the fuel injector is dirty, clogged, or does not open properly. They are easy enough to maintain. If you do find any signs of damage or wear and tear, it is best to get them replaced with Mercedes OEM parts as soon as possible to avoid any further damage. This can result in slow or jerky performance on the road. before 1980 had carburetors. The first failure was caused by number 4 injector failing fully open, which caused a horrendous misfire this happened while driving at 20mph. Please note that the check engine light can also be activated for various other reasons. This can become hard and brittle from the heat of the engine. Next, reinstall the fuel rail. 4. Another great way to keep injectors in good health is to regularly add a fuel injector cleaner to to your fuel tank. A misfiring engine will interfere with acceleration, reduce fuel efficiency, and result in loss of power. Fuel pressure in loop line is essential for D-Jetronic. Certified Automotive Diagnostic Technician. 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. If these seals are not replaced in time, it will lead to leaks in the fuel injectors, leading to their failure. There are lots of other causes of car vibrations. the injector. Thanks!https://www.buymeacoffee.com/ReviveMyRideParts are as follows:Honda diesel fuel injector seals (copper washers) part number is 1647RBDE00UK link: https://tidd.ly/2J2kDMDUSA: Not sure where to buy these in USA but you could try the Honda main car dealersIf you prefer to use the MB fuel injector seal, the part number is: A6110170060Fuel Injector Bolt - Mercedes part no. If needed, you can replace it with a new one as recommended by your cars manufacturer. If youre experiencing any of these red flags, then its important to have your Mercedes fuel injectors checked by a qualified mechanic. Many are having difficulty with customer service and others are returning their cars under the sale of goods act. Remove the electrical connector from the fuel pump. Does your engine randomly stall or cut out without you doing anything to cause it? Pro Tip: Before you fix the new fuel injectors, put the tip of the 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. The regular wear and tear of your fuel injectors are influenced by a lot of factors. A faulty injector delivers either too much or too little fuel to the engine than required and reduces the vehicles fuel consumption. If you want to try to reduce your emissions before an MOT, checking and cleaning the fuel injectors is an essential maintenance task. Replace your fuel pump's fuse in the fuse box. Turn on the engine and inspect the filter for any leaks. Or, to browse our complete range of fuel additives, click here to visit the homepage. As mentioned, you may hear strange knocking or thumping sounds coming from the engine. All Rights Reserved. Have a car complaint to add? Locate the fuel pump, in most cases, under the rear seat. will wet the seals, and prevent leaks. sensor or fuel line. This guide is for an Engine Fuel 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.