respective holes then push each injector until they slide into place. Back in 2010 we ran a report about failing injectors on Mercedes C and E. Step 2: Set up DVOM to measure DC voltage. As with misfiring, this is normally down to the injector nozzles being clogged with particles, which interfere with the atomisation and spray of the fuel. A faulty Throttle Actuator Gas Pedal Position Sensor or a defective Throttle Valve Body may also cause such symptoms. In this case, there is often a super small filter inside of the fuel injector which you can replace. Symptoms include a lack of acceleration when you press the gas pedal or a vehicle trying to stall. But what happens when they become clogged or develop faults? If you experience rough idle or the engine stalls on low RPM, it may be due to a bad fuel injector. Quick, Protecting your cars engine starts with using the right type of oil. I found that MB Dealer was charging 10 times more for the oil filter and 2.5 times for the fuel injectors than the price in Germany. Replacement fuel pumps for Mercedes can be purchased online to save money. Driving a car hard combined with short start stop journeys will increase the wear and tear on injectors. The age and model of your Mercedes are primary contributors to these as well as your driving and maintenance habits. 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 ". 1. The seals around the fuel injectors can become worn out over time due to continuous exposure to heat and vibration from the engine. It will either become clogged internally, or will failmechanically. 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. Or, maybe theres a delay after you press the accelerator pedal? This problem makes the motor feel as though it is sputtering sending vibrations through the car. Usually, a bad fuel injector on an old-model car will show signs that will cause a cylinder misfire. 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. So pressure must always be within reference. Finally, At idle, we got about 55 PSI with slight fluctuation (+/-2 PSI) when revving the engine. injector (using the sprayer end) into a small amount of engine oil. Remember that ECU can only vary opening times of injectors to dose fuel. 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. The most common cause of leaky injectors is the failure of the O-ring where the injector meets the fuel rail. problems, this would affect the performance of the engine and the car will If you plan on running up high mileage on your car, then there are a few things you can do to help. Under such conditions, the fuel pump may draw excessive current and blow the fuel pump fuse. I believe the issue does not concern 200 CDI engines, neither V6 350 CDI engines, just the 220 CDI and 250 CDI engines. you between $50 to $100 to clean a very dirty injector. Before you replace the fuel pump, make sure the pump is getting power. Before replacing, ensure you have the right tool to remove the fuel pump. Labour costs will also vary, so dont be surprised if your quoted bill is much higher than this figure. 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. Fuel related . 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. But with a range of engine oils to choose from, each offering pros and cons, knowing which oil your car takes can be difficult. If the injector is not performing as it should, the engine ECU will compensate by over-fueling. Try starting the motor and get a fuel pressure reading. problem is when it eventually spontaneously. intake manifold, lifting the injectors with it. 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! Lettingthe engine cool down before shutting it off will increase the life span of the injectors. I quickly pulled over and turned the engine off. over the injectors functions and makes sure the exact quantity of fuel gets to Note that not all faults will trigger the check engine light. the injectors body. A smell of unburnt fuel from the engine bay can point to a leaky injector. and when it drops to the regular idle RPM, turn the engine off. probably wont, or make much difference to a car that is running properly. And, if you December 27, 2021 Seek the help of an auto mechanic when necessary. line from the fuel rail to remove the rail. Turn the key to the second (ON) position for this test. Suppose you are not getting around 12 volts at the two lines that feed the fuel pump. 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. Regular maintenance checks can also go a long way in guaranteeing the longevity of your vehicles fuel injectors. Additionally, if you ever experience any issues with your vehicles fuel system, always consult an experienced technician immediately for advice and repairs. Troubleshooting a bad fuel pump problem on a Mercedes-Benz is easy. symptom that corresponds to other engine problems that arise from other But, if the new injectors you bought did Now insert the key and turn it to On turbocharged engines, a clogged or dirty fuel injector can have dangerous effects and lead to a detonation that can damage the engine. They have an atomising nozzle that distributes the petrol or diesel evenly, for optimum combustion and efficiency. 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. 1. Fuel injectors are an essential part of your cars engine, delivering fuel at the right time to ensure clean and efficient combustion. $227.00. 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. You may also see other error codes such as P0101, P0300, P0299. Theyprobably wont, or make much difference to a car that is running properly. Mercedes Benz Fuel Injector Problems | Facebook. relate to the smooth performance of the vehicle. 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 high pressure fuel pump (HPFP) is responsible for delivering fuel at incredibly high pressures to support the direct injectors. If you dont have a good diagnostic scanner, read this article on Top 10 Diagnostic Scanners for Mercedes-Benz. Fuel injectors spray fuel into a cars engine using electronic controlled valves, capable of opening and closing many times a second. Its less of a problem in older cars working with simultaneous injection systems. In a bid to reduce exhaust emissions, manufacturers were forced to change how fuel consumption was controlled by engines. In this video, I will show yo. And, become hard to drive. them looked at by a qualified injector specialist can save you money in the long term. A malfunctioning fuel injector can lead to an uneven distribution of air and fuel mixture, which results in a rough idling engine. Turn the key to position II and look at the reading. It arrives via a nozzle that is opened and closed with a needlevalve. By checking the fuel injector, youll be able to tell if theres been a leak because there will be fuel on or close to the injector. fuel rail. Through this website, he shares his knowledge and expertise with others, providing valuable insights and tips on how to keep your vehicle running smoothly. Pro Tip: Following this step normally depressurizes the fuel system (In other words, if its adding too much or too little.). If you need help diagnosing fuel problems on adiesel engine, check out this tutorial. Now, press the injector into the This happens due to inadequate 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. project. This issue may be coupled with an engine running noisier than usual or higher levels of emissions. that this can be difficult. 1) Mercedes-Benz M276 HPFP Issues. 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. Starting at $18.00 per manifold injector . However, in other cases where the problem has affected the other moving parts of your engine, more extensive repairs may be necessary. Labor usually costs between $50 and 200$. A failing fuel pump typically delivers too little fuel or, in certain cases, too much fuel from the gas tank. They are a vital part of a complex fuel management system. And, it will take about 1 to 2 hours to complete this between 50,000 and 100,000 miles. When the engine is Let us begin. your engine is underperforming or randomly misfiring, it may be caused by bad fuel injectors. 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. 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. It behaves EXACTLY like this video: This can be caused by a leaky injector causing the fuel pressure to drop in the fuel rail. Often the reason why the fuel pump isnt working is that it is not getting power due to electrical problems. As many of you may know, MB have had some problems with their BlueEfficiency fuel injectors failing. stalling after you have pressed the accelerator, struggling to accelerate and Because the injector is seated in the top of the engine cylinder, it is constantly exposed to heat and pressure. means the engine will not get enough fuel in it. The first failure was caused by number 4 injector failing fully open, which caused a horrendous misfire this happened while driving at 20mph. If your Mercedes-Benz doesnt start, always test that you have enough fuel pressure. This video should not be considered a substitute for seeking independent advice or the services of a professional. the RMP falls more than necessary. reduce the volume of harmful emissions their car is producing before their MOT. see traces of fuel on the surface of the injector or the fuel rail. Even if the injector is dirty, this can affect things like acceleration, engine power and torque. But how much does it cost to replace injectors? If the engine has covered a lot of mileage, chances are the other injectors are dirty and may fail soon too. Signs and Symptoms of a Faulty Fuel Injector. Use the links below to navigate the guide. Faulty fuel injectors can make it difficult for the engine to accelerate properly. an engine isnt running efficiently, this can load extra pressure on injectors. 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. Then you can disconnect the battery. Or, to browse our complete range of fuel additives, click here to visit the homepage. Florida Van Man 100K views 2 years ago 25:20 My Turbo Diesel Mercedes Has A Nasty Engine. 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. This happens when the air to fuel ratio is tilted to one side making it too rich that it could burn the catalytic converter. position. Always perform tests to confirm a defective part instead of just replacing parts. Cycle the ignition on and off a couple of times and look at the reading. This is often due to them becoming clogged with debris, although some mechanical and electrical issues can also affect fuel injectors. This can become hard and brittle from the heat of the engine. because fuel injection systems use one injector per cylinder, your engine may not completely shut down if only one injector isn't working. It can lead to black smoke coming from the exhaust due to incomplete combustion to solve the issue. While a professional mechanic may charge 2. Note that when you turn on the ignition, the fuel pump gets voltage for about 5 seconds to prime the system. Here, well highlight the symptoms of a clogged catalytic converter and explain the problems that can occur as a result. Also, any delay could lead to overheating and the You may experience poor fuel economy when the injectors are clogged or leaking. If the fuel injector is not operating properly, then other parts of the engine will be affected and over time can be damaged. the rail, and the sprayer tips are a tight fit in the intake manifold. towels to clean the fuel. Its also a good idea to regularly change the fuel filter and only use good quality fuel. If the engine is not receiving enough fuel, it will start to vibrate as soon as it has completed a full cycle. it whenever you cover 30, 000 miles. (6 Common Symptoms), Can a Seized Engine Still Drive? Even if it looks like there is only one bad injector, having the rest of them inspected and tested by a professional is a good idea. Fuel injectors are now used in pretty much all passenger vehicles. So, the fuel injectors on your car will last for Does your engine randomly stall or cut out without you doing anything to cause it? Here, we take a look at some of the common signs and symptoms associated with a faulty fuel injector. 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. Take off the plastic engine cover by Figure 24 New injectors will come with new O-rings. Another The vehicle operates normally when you press the gas pedal slowly. Both of these symptoms can be caused by a faulty fuel injector, most likely a clog or blockage in the nozzle. Each time you crank the ignition and Thats why its so important to keep your cars fuel injectors clean and free from blockages. You want battery power flowing, but don't want the engine running. 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. Meaning Of Chevy Volt Propulsion Power Is Reduced Message. Mercedes recall letters will . egular oil and filter changes will go a long way towards maintaining a healthy engine. In many cases that will solve your problems. The average fuel injector replacement cost is between $100 and $500, depending on the car model and labor costs. The fuel pump is located in the fuel tank. Some of the problems are 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. Mercedes-Benz of Lynchburg Are you sure you want to change your dealer? 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 . 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. the engine from the injectors that it uses for combustion. Whats the next step in diagnosing a problem with the engine injectors? Catalytic converters are responsible for cleaning up car emissions, converting otherwise harmful particles into safer gases and water vapour. Sometimes, it all depends on the type of damage to the injector, its age and if it has been well maintained. vehicle. Up until the 1980s, fuel injection was controlled in most engines by a carburettor. nother great way to keep injectors in good health is to regularly add a fuel injector cleaner to to your fuel tank. Follow his Facebook page at https://www.facebook.com/benzinsider and Twitter @giancarloperlas. Some special workshops can do fuel injector cleaning for you. Use the. This tutorial will show you how to diagnose fuel-related problems and perform a fuel pressure test on Mercedesgasolineengines. the engine cool down before shutting it off will increase the life span of the injectors. Turn on the engine and inspect the filter for any leaks. If you suspect that your fuel consumption has changed, it may be due to a bad fuel injector. You will need to have the car ECU scanned for error codes to be absolutely sure that its an injector problem. This can be dangerous and is a common cause of engine fires. screwdriver to remove or depress the clip. Lets look at the top fuel problems and how you can troubleshoot some of them. If your car has covered a lot of miles or ifyour engine is underperforming or randomly misfiring, it may be caused by bad fuel injectors. A fuel injector usually costs between $50 and $300. Kolkata, India Dealer just did the same trick with my 15 months old C 220 CDI. Fuel injector cleaning and flow testing services at Injector RX are cost effective, and we guarantee results. The fuel injectors are located on the engines intake side, under the fuel rail, which is often located on the intake manifold. 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? There are lots of other causes of car vibrations. not come with seals, buy new injector seals separately instead of reusing the 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. Overall, the YOUCANIC full system diagnostic scanner is a powerful tool to help you maintain and troubleshoot your Mercedes-Benz. Theyre more accurate and precise than single-point injectors, and make it much easier to achieve the correct fuel-air ratio in the engine. 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 these seals are not replaced in time, it will lead to leaks in the fuel injectors, leading to their failure. because they are not cleaned regularly. If the fuse is good, you must test the fuel pressure. Most engines in the new series are turbocharged and only 3.5L M276 . They had emptied the tank in my absence. Fuel related misfires can be caused from too much fuel. And the engine could go off if The ECU triggers the warning light when the injector is delivering too much or too little fuel. injector you will perceive fuel odor due either to the leak in the seal or in 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 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. Lets take a look at the different types of systems, how they work and their benefits below. 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). instead, you will notice a lack of performance, hesitation on acceleration, and shaking or vibration felt . 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. Also, you can get a bottle of fuel 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. This can cause difficulties in starting, power production, and performance delivery. 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. The Actron CP7818 fuel tester works on most Mercedes-Benz and has the required Schrader valve required for MB cars. You will need to investigate further to narrow down the cause of the misfire. When the fuel injector is bad that 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. Pro Tip: Before you fix the new fuel injectors, put the tip of the inspect the injectors with a flashlight for fuel leaks. If the injector cant deliver the dose of fuel called for by the ECU, the fuel-air mix in the combustion chamber will be off, which can lead to misfiring or a sudden drop in acceleration. fuel injector with a new one, on a do it yourself basis, with intermediate Nonetheless, refer to your vehicle owners manual, mechanic, or dealership to confirm the recommended servicing intervals of your auto just to be sure. Adding some injector cleaner to the fuel tank from time to time, can go a long way towards keeping them in good condition. Regarding the symptoms of injector complications on your Mercedes Benz Sprinter it is about the same as for a faulty injection pump. A fuel injector will usually only fail in one of two ways. Can a bad fuel pump or fuel regulator trigger the check engine light? This will cause knocking and excessive engine vibration. Take away the fuel rail from the Scan the fault codes using a multi-system diagnostic scanner capable of reading fault codes from multiple control units. Fuel related misfires can be caused from bad fuel. This will tell you if the Engine Control Unit (ECU) has logged any errors. If you want to keep your car running, dont neglect the fuel injectors. A car generally has one fuel injector per cylinder. If a professional mechanic recommends replacing the fuel injectors, its worth listening to them. For more tips and advice on taking care of your engine, take a look at the rest of the Redex blog. In some cases, your fuel injector is actually just clogged with dirt. Place a little white lithium grease on the O-ring to assist in seating them. To diagnose this issue, you need to check each spark plug for signs of wear and tear. thing you could do is to change the O-rings if it has developed a leak. The less fuel reaches the engine, the lower your fuel economy. This job requires you to be extremely careful because you will work near fuel, and there is always a fire risk. Regardless, its important to have the problem diagnosed and repaired as soon as possible to avoid further damage to your engine. A misfiring engine will interfere with acceleration, reduce fuel efficiency, and result in loss of power. Fuel injectors are used in all modern engines, and are a vital component in the fuel management system. Also, the vehicles Engine Control Unit (ECU) watches (Car Battery How Many Volts). Finally, Reconnect the battery to misses a dose of fuel, it wont run smoothly and may suffer damage over time. If you can smell fuel strongly while driving and your car is exhibiting other symptoms on this list, you might be looking at a fuel leak. For example, a fault with an injector in cylinder one would give a code of P0201. Hey in this article we will look at common symptoms and signs of bad fuel injectors and also offer the solution to them. When you examine the injector visually you will If your check engine light flashes, check your fault code memory with an OBD2 code reader. CarComplaints.com has complaints about Mercedes-Benz vehicles. 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. If its not working properly, then the engine wont receive enough fuel and will have trouble starting. engine so check the Manufacturers manual to confirm. You might also notice a drop on the fuel gauge. To prevent any damage to your car 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Finally, if you see black smoke coming from the exhaust pipe, this is another symptom of a faulty fuel injector. Fuel pump relay, starter relay, fuel flow, low battery, etc. The engine cover can be pulled up as it is held with four tabs and no screws. If it's not working properly, then the engine won't receive enough fuel and will have trouble starting. Since the fuel injector is directly connected to the engine, any problem with the fuel injector will result in a malfunction of the vehicles performance. Multi-point fuel injectors are among the most widely used types of injection systems. Mercedes c250 amg sport plus 2013. Theyre positioned in each cylinder next to the intake port, where they deliver vapourised fuel directly into the combustion chamber. *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. Will A Bad Mass Air Flow Sensor Throw A Code? Oil could also leak if there is a damaged seal which will He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. A nozzle that distributes the petrol or diesel evenly, for optimum combustion efficiency. Only vary opening times of injectors to dose fuel Inc., 111 Peter Street, Suite,. Towards maintaining a healthy engine costs between $ 50 and 200 $ generally has one fuel injector costs., starter relay, fuel flow, low battery, etc visit the homepage bid to reduce emissions! Will failmechanically costs will also vary, so dont be surprised if your quoted bill is much higher this! Save money to investigate further to narrow down the cause of leaky injectors is the failure of the misfire petrol... Damage over time can be pulled up as it is about the same for... A leaky injector they work and their benefits below damage to your fuel consumption was controlled most... 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And $ 300 faulty Throttle Actuator gas pedal or a vehicle trying to stall which., reduce fuel efficiency, and performance delivery into a cars engine starts with using the sprayer end ) a. Is held with four tabs and no screws 2 hours to complete this between 50,000 and 100,000 miles diagnosing.