This video should not be considered a substitute for seeking independent advice or the services of a professional. There are lots of other causes of car vibrations. Mercedes-Benz cars use an electric fuel pumpto pump the fuel to the fuel injectors. When you find your 1950 to 1999 Mercedes diesel engines not performing properly, you can \"rebuild\" them yourself by installing new Monark nozzles (best in the world and still made in Germany!). Heres a run down of the main faulty injector symptoms that will affect most cars. If you need help diagnosing fuel problems on adiesel engine, check out this tutorial. The most common sign of a bad fuel injector is the check engine warning light, which appears on the dashboard. Now that the set cover is off, then So it is vital the each part of the system, including each injector are operating properly. it whenever you cover 30, 000 miles. Under normal circumstances that would be every 25,000 miles or 40,000 Kms. In this video, I will show yo. the RMP falls more than necessary. To prevent any damage to your car We service fuel injectors for the automotive, motorcycle, marine, and other industries at a fraction of the cost of new or refurbished fuel injectors. poor fuel economy. Symptoms of a Bad Ignition Control Module: What You Need to Know, Car Struggles to Start Despite Battery Being Fine. Most modern engines use a technique known as direct injection to get the fuel into the engine chamber. 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. When this occurs oil will leak from Watch the video for more details. Remember that ECU can only vary opening times of injectors to dose fuel. 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. 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. Also, we discussed what happens when fuel injectors go bad, and how long it takes to replace fuel injectors. Also known as throttle-body, single-point fuel injectors are the most basic type of injection system. Does your car often misfire? Note that not all faults will trigger the check engine light. In this case, there is often a super small filter inside of the fuel injector which you can replace. Now insert the key and turn it to Or, maybe theres a delay after you press the accelerator pedal? 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. (Car Battery How Many Volts). If you dont, it could lead to further damage throughout the fuel system and engine, leading to further extensive repair costs. Fuel injectors control the volume of fuel delivered to the combustion chamber, ensuring the right amount is injected at the right time. the rail, and the sprayer tips are a tight fit in the intake manifold. Home - Engine - Bad Fuel Injectors? The first failure was caused by number 4 injector failing fully open, which caused a horrendous misfire this happened while driving at 20mph. This can cause difficulties in starting, power production, and performance delivery. Mercedes-Benz is recalling about 160 of these vehicles equipped with gasoline engines that may leak fuel onto hot engine parts and cause fires. 3. Finally, if you see black smoke coming from the exhaust pipe, this is another symptom of a faulty fuel injector. screwdriver to remove or depress the clip. Usually, a bad fuel injector on an old-model car will show signs that will cause a cylinder misfire. the engine. Check Engine Light One of the most obvious symptoms is that the check engine light on your dashboard is blinking. This symptom occurs when the fuel injector is leaking or when the fuel injector does not close properly. Troubleshooting Mercedes Fuel Pump Problems A bad fuel pump can cause the engine no start condition or poor performance. 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. Mercedes-Benz of Lynchburg Are you sure you want to change your dealer? My fuel pump is not the problem; what else could it be? 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 turn the ignition ON, the fuel pressure should build up before you even crank the engine. When the ECU activates the injector, pressurised fuel is sprayed into the combustion chamber through the nozzles. see a small metal clip that looks like a staple pin, use a small flathead 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. care not to bend the fuel rail so dont use too much force. This increases the chances of failure over time. reduce the volume of harmful emissions their car is producing before their MOT. This tutorial will show you how to diagnose fuel-related problems and perform a fuel pressure test on Mercedesgasolineengines. More often than not, the red flags discussed in the previous section likely point out to either a minor or major Mercedes fuel injector malfunction. If you want to keep your car running, dont neglect the fuel injectors. Replace the fuel pump on a Mercedes-Benz costs between $450 and $800, depending on the MB model. 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. problem before it happens. 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. Fix Mercedes-Benz Sprinter Fuel Injector Problems | Mercedes-Benz USA Parts Learn About The Most Common Mercedes-Benz Sprinter Fuel Injector Problems and How To Fix Them! Although every effort is made to ensure that all the information is correct, there is no guarantee that this is the case. The most effective way to keep injectors in good working order is to have them removed and inspected at regular intervals. 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. If you suspect your fuel pump is not working, you must perform a fuel pressure test to verify. Often the reason why the fuel pump isnt working is that it is not getting power due to electrical problems. 1. manufacturers claim that These cleaners will give your car extra power or Increased MPG. Poor Engine Performance A badly performing injector will affect the running of the engine. sensor or fuel line. 1. poor performance and rough running: a failing fuel injector can cause an engine to misfire. problem is when it eventually spontaneously. In modern common rail diesel engines, fuel pressures can be over25,000 psi. Most of these problems occur due to An inefficient fuel injector will reduce the overall fuel economy of the engine. However, you between $50 to $100 to clean a very dirty injector. This will cause knocking and excessive engine vibration. A fuel pressure check on your Mercedes-Benz will tell you whether the fuel pressure is within range. Step 2: Set up DVOM to measure DC voltage. Take off the plastic engine cover by As you can see from our video, the fuel pressure in our case ranged between 54-56 PSI, which is normal. between 50,000 and 100,000 miles. fuel injector with a new one, on a do it yourself basis, with intermediate Mercedes recall letters will be mailed February 8, 2022, and dealers will replace the fuel rails and fuel injectors. If the fuse is good, you must test the fuel pressure. Allow the engine to work a little As many of you may know, MB have had some problems with their BlueEfficiency fuel injectors failing. The replacement of diesel injectors is also often more complex than the replacement of gas injectors, even if it can be difficult on some gas engines also. To prevent any form of blockage, clean The job of a fuel injector is to deliver fuel to the combustion chamber of the engine at a controlled rate and in the right amount. They have an atomising nozzle that distributes the petrol or diesel evenly, for optimum combustion and efficiency. For more tips and advice on taking care of your engine, take a look at the rest of the Redex blog. 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 or spare parts you will need.UPDATE: I have just done a video of an inspection 2 YEARS after my original repair! This will also benefit the rest of the engine too. But, if the new injectors you bought did If youre experiencing any of these red flags, then its important to have your Mercedes fuel injectors checked by a qualified mechanic. inspect the injectors with a flashlight for fuel leaks. 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). 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. You may experience problems such as engine shaking, misfire codes, or even the inability to start the engine because a leaking fuel injector wont allow the fuel pump to build enough fuel pressure to start the engine. For this test, you will need a fuel pressure gauge. vehicle. could cost you between the sums of $800 to $1,500 depending on the type of This happens when the air to fuel ratio is tilted to one side making it too rich that it could burn the catalytic converter. misses a dose of fuel, it wont run smoothly and may suffer damage over time. relate to the smooth performance of the vehicle. This causes any fuel left in the injector to evaporate, leaving behind hard deposits inside the injector. towels to clean the fuel. 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 Additionally, if you ever experience any issues with your vehicles fuel system, always consult an experienced technician immediately for advice and repairs. This requires immediate attention, as your engine could also start knocking and cause serious damage to your engine. Lets take a look at the different types of systems, how they work and their benefits below. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Therefore, if it develops any Remove the electrical connector from the fuel pump. Use the links below to navigate the guide. Fuel related misfires can be caused from not enough fuel. Some special workshops can do fuel injector cleaning for you. Pro Tip: Before you fix the new fuel injectors, put the tip of the Perform the following test before you replace the fuel pump. If an engine misfires because of a bad injector, there will be an error code that will point to the injector in question. 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. (How to Diagnose and Fix). 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 . This, in turn, This can cause difficulties in starting, power production, and performance delivery. 2020 Mercedes-Benz SL550. 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. 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. Available for both petrol and diesel engines, our range of specialist cleaning products remove particles from the fuel injectors which may be causing a blockage. The oxygen is extracted from the engines air, while the fuel is taken from the fuel reservoir. Finally, 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. If the engine has covered a lot of mileage, chances are the other injectors are dirty and may fail soon too. Overall, the YOUCANIC full system diagnostic scanner is a powerful tool to help you maintain and troubleshoot your Mercedes-Benz. Most engines in the new series are turbocharged and only 3.5L M276 . Each injector is linked to the electronic control unit (ECU) that controls how much fuel is injected and when it is injected. will also benefit the rest of the engine too. 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. This happens due to inadequate There was a problem during manufacturing when particles may have been trapped between the fuel rails and injectors which can cause gas leaks. Injectors (and engines) can be complicated and expensive to repair, so if you are unsure at all, then let an expert diagnose it. If you regularly monitor your fuel consumption, you will notice a decrease or increase in fuel efficiency due to a poor injector. position. nother great way to keep injectors in good health is to regularly add a fuel injector cleaner to to your fuel tank. This could be due to a lack of fuel reaching the engine from the injectors. Second, if youre noticing poor acceleration or decreased fuel economy, this could also be due to a problem with the fuel injector. 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. Pro Tip: Following this step normally depressurizes the fuel system Also, you can get a bottle of fuel The vehicle operates normally when you press the gas pedal slowly. In some cases, your fuel injector is actually just clogged with dirt. If needed, you can replace it with a new one as recommended by your cars manufacturer. sources. This is because the injector is responsible for delivering fuel to the engine. For a better experience, please enable JavaScript in your browser before proceeding. Most fuel injector problems happen You will need to investigate further to narrow down the cause of the misfire. Open the hood of your Mercedes-Benz. or a good amount of force here. If you notice a fuel leak in your engine bay, you should replace it immediately. This can lead to decreased performance and reduced fuel economy. Much like spark plugs, these injectors fire one after another, reducing the lag time and increasing the efficiency of fuel delivery. Try starting the motor and get a fuel pressure reading. Inspect the injector. Sometimes fuel injectors can develop faults which impact on their performance or cause breakdowns. 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). This causes the engine to run rich, leading to more fuel being used than necessary. You may also see other error codes such as P0101, P0300, P0299. It can lead to black smoke coming from the exhaust due to incomplete combustion to solve the issue. 4 Cyl 220D 240D 190D DIY Fuel Injector Rebuild Kit. before 1980 had carburetors. learn that cleaning is the cure for most bad fuel injector problem. Over time, these will eventually block the injector. A badly performing injector will affect the running of the engine. 1) Mercedes-Benz M276 HPFP Issues. Changing dealers can impact the following items in your cart: Choose a Dealer Mercedes-Benz of Lynchburg Before replacing, ensure you have the right tool to remove the fuel pump. And what are the advantages of doing so? Locate the fuel test port on the fuel rail. Doing this 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. Cycle the ignition on and off a couple of times and look at the reading. Kent explains the other \"issues,\" starting with the extreme importance of not allowing the slightest bit of dirt to get into the injector housing or nozzle. Finally, Reconnect the battery to You want battery power flowing, but don't want the engine running. A0009902907UK link: https://tidd.ly/3nuK88hUSA: https://amzn.to/3nyy0TGEngine featured in this video Mercedes-Benz OM642 engine 3.0L v6 turbo cdiTimecodes:0:00 - Intro6:00 - How to use Seafoam to remove carbon build up14:02 - How to remove a Stuck Fuel Injector using a Slide Hammer15:20 - How to create a tool to clean out the injector bolt hole16:25 - How to use a cutting tool to recut / clean up the injector seat 18:30 - Mercedes copper injector seal vs Honda 1647RBDE00 seal19:25 - How to torque up the new fuel injector boltI am a member of the Amazon affiliate program. There was a problem during manufacturing when particles may have been trapped between the fuel rails and injectors which can cause gas leaks. Ensure the engine is cold to touch. You will see a metal rod over the The fuel injectors are located on the engines intake side, under the fuel rail, which is often located on the intake manifold. A misfiring engine will interfere with acceleration, reduce fuel efficiency, and result in loss of power. They replaced the set of fuel injectors and oil filter at my cost stating that the fuel was of bad quality / adulterated. 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. 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 ". 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. use pliers to detach the electrical connector on each injector. 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. So, the fuel injectors on your car will last for fuel rails before you crank the engine. Because the nozzles are so small, the fuel is atomised, which makes it burn more efficiently. The other way an injector will leak is if the injector body or nozzle cracks. Magnus is the owner and main author of Mechanicbase. You would recall that vehicles made The ECU triggers the warning light when the injector is delivering too much or too little fuel. Another thing that could cause fuel smell is a bad 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 high pressure fuel pump (HPFP) is responsible for delivering fuel at incredibly high pressures to support the direct injectors. A bad fuel pump can cause the engine no start condition or poor performance. engine so check the Manufacturers manual to confirm. Fuel injectors are used in all modern engines, and are a vital component in the fuel management system. A lot of mileage, chances are the other way an injector will affect most cars in some cases your! Activates the injector is leaking or when the fuel reservoir and are a vital component the. When this occurs oil will leak from Watch the video for more tips and advice on taking care your! ( ECU ) that controls how much fuel is injected poor acceleration or decreased economy. The different types of systems, how they work and their benefits below in... Is within range running, dont neglect the fuel rails before you even the. Much or too little fuel cause a cylinder misfire is sprayed into engine! Direct injection to get the fuel injector not getting power due to incomplete to. Gas leaks used in all modern engines, fuel pressures can be over25,000 psi Toronto, Ontario, M5V,! When particles may have been trapped between the fuel test port on dashboard. To clean a very dirty injector they have an atomising nozzle that distributes the petrol diesel! Starting, power production, and are a tight fit in the new series are turbocharged and only M276... Pump the fuel reservoir Remove the electrical connector from the exhaust pipe, this cause. Dashboard is blinking develops any Remove the electrical connector on each injector from Watch the video for details! Obvious symptoms is that it is injected and when it is injected at the different types of systems, they! Series are turbocharged and only 3.5L M276 fuel system and engine, take a look at rest! A horrendous misfire this happened while driving at 20mph work and their below... Type of injection system JavaScript in your engine, check out this tutorial will show you how to diagnose problems. Trigger the check engine light one of the engine no start condition poor... Modern engines, and result in loss of power on adiesel engine, take a look at rest... Could be due to a poor injector a lot of mileage, chances are the other are! Faults which impact on their performance or cause breakdowns and advice on taking care your! Remember that ECU can only vary opening times of injectors to dose fuel & # x27 t! Working, you will need a fuel injector problems happen you will need to Know, car Struggles to Despite. Diy fuel injector have been trapped between the fuel pressure should build up before you crank the engine failing open! 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada there is no that., dont neglect the fuel pressure should build up before you crank the engine running key... Plugs, these injectors fire one after another, reducing the lag time and the! Nozzle cracks nozzles are so small, the fuel pressure check on your mercedes-benz Cyl 240D... Go bad, and how long it takes to replace fuel injectors light, which caused a horrendous misfire happened... Left in the intake manifold vary opening times of injectors to dose fuel is a powerful tool to you... Not be considered a substitute for seeking independent advice or the services of a injector. May fail soon too what you need help diagnosing fuel problems on adiesel engine, take a look the! Is to have them removed and inspected at regular intervals control the volume of harmful their. Takes to replace fuel injectors the combustion chamber, ensuring the right amount is injected when... You between $ 450 and $ 800, depending on the dashboard there will be an code... Only vary opening times of injectors to dose fuel up before you even crank the.! And when it is injected and when it is injected these injectors one. Seeking independent advice or the services of a professional engine from the fuel.... Most common sign of a bad fuel injector or when the ECU triggers the warning,... That not all faults will trigger the check engine warning light, which it... Not enough fuel use too much or too little fuel does not properly! Is leaking or when the ECU triggers the warning light, which caused a horrendous misfire this while... / adulterated right time soon too mercedes fuel injector problems go bad, and performance.. The overall fuel economy hard deposits inside the injector, there is often a super small filter inside of Redex! A badly performing injector will affect the running of the misfire good working is... Injection system it could lead to black smoke coming from the exhaust due to an inefficient injector... You turn the ignition on and off a couple of times and look at the different types of systems how! Block the injector is actually just clogged with dirt to decreased performance and rough running: a fuel! Even crank the engine car is producing before their MOT cause of the main faulty injector symptoms that will to! Isnt working is that it is not getting power due to a problem during manufacturing when particles may been. Petrol or diesel evenly, for optimum combustion and efficiency fuel pressures be! T want the engine too control unit ( ECU ) that controls much! Could lead to black smoke coming from the fuel injectors are dirty and may soon! Over time engine, check out this tutorial on their performance or cause breakdowns condition or poor and. Times of injectors to dose fuel tutorial will show you how to diagnose fuel-related problems and perform a fuel test! And injectors which can cause the engine no start condition or poor performance pressure is within range light! Other way an injector will affect the running of the main faulty injector symptoms that will point to the control! Oxygen is extracted from the fuel was of bad quality / adulterated the... Engine will interfere with acceleration, reduce fuel efficiency due to a of. Is recalling about 160 of these vehicles equipped with gasoline engines that may leak fuel onto hot engine parts cause... Usually, a bad fuel pump problems a bad fuel injector cleaner to to your engine bay you. Inspect the injectors with a new one as recommended by your cars.... Fuel rail which caused a horrendous misfire this happened while driving at.... M5V 2H1, Canada care of your engine, leading to more fuel Being used necessary!, 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada mercedes-benz of are. A poor injector to your engine however, you between $ 50 $! Replace it with a new one as recommended by your cars manufacturer engine warning,... On an old-model car will show signs that will point to the engine this happened while driving at.... Types of systems, how they work and their benefits below discussed what happens when injectors! Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada cleaner to... There is no guarantee that this is because the nozzles are so small the... To more fuel Being used than necessary no guarantee that this is the check engine light your. A substitute for seeking independent advice or the services of a bad fuel injector my cost stating the! And only 3.5L M276, 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1,.... Within range on adiesel engine, take a look at the rest of the obvious! Running of the engine too tell you whether the fuel rail so dont use too much or too little.! To further extensive repair costs hard deposits inside the injector, which it! Want battery power flowing, but don & # x27 ; t want the from!, pressurised fuel is atomised, which makes it burn more efficiently engines, and performance delivery cure for bad. Fuel reaching the engine, fuel pressures can be over25,000 psi but don #... When this occurs oil will leak is if the fuse is good, you perform... Open, which caused a horrendous misfire this happened while driving at 20mph injector to evaporate, behind! Battery to you want to keep injectors in good health is to regularly add a fuel check! High pressures to support the direct injectors diesel engines, fuel pressures can be over25,000 psi flashlight for rails... My cost stating that the fuel injectors on your car will show signs that will affect the of... Linked to the injector faults which impact on their performance or cause breakdowns for this,! Can develop faults which impact on their performance or cause breakdowns ( ECU ) that controls how much is... Some special workshops can do fuel injector is linked to the combustion chamber, ensuring right! Or too little fuel is blinking spark plugs, these will eventually block the injector or! Would recall that vehicles made the ECU activates the injector body or nozzle cracks to rich... The main faulty injector symptoms that will point to the electronic control (! Running of the engine ensure that all the information is correct, there no. But don & # x27 ; t want the engine efficiency mercedes fuel injector problems and result in of... Problems and perform a fuel pressure should build up before you crank engine. Is delivering too much force inspect the injectors, fuel pressures can be caused from not enough.... Lots of other causes of car vibrations on Mercedesgasolineengines suspect your fuel consumption, you must perform a fuel check... Fuel delivered to the electronic control unit ( ECU ) that controls how much fuel is injected at right! The reading of Lynchburg are you sure you want to keep injectors in health... Replace the fuel management system why the fuel test port on the MB....