They are easy enough to maintain. Here, we take a look at some of the common signs and symptoms associated with a faulty fuel injector. The oxygen is extracted from the engines air, while the fuel is taken from the fuel reservoir. Read the fault codes if you have performed a fuel pressure test and found that fuel pressure is within range. And, it will take about 1 to 2 hours to complete this Often the reason why the fuel pump isnt working is that it is not getting power due to electrical problems. 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. The first thing that you should do is check the fuel pump fuse. Fuel pressure in loop line is essential for D-Jetronic. A bad fuel injector will wreak havoc with how your engine runs, and will likely leave you stranded on the side of the road. Take off the plastic engine cover by Itsalso important to regularly change the fuel filter to ensure a proper fuel flow. If your engine stalls on idle, that could also be a sign. Catalytic converters are responsible for cleaning up car emissions, converting otherwise harmful particles into safer gases and water vapour. Your email address will not be published. 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). You should get around an 11-13 volt reading. Copyright 2023 Mechanic Base. Inspect the injector. their right places. Before you replace the fuel pump, make sure the pump is getting power. This is often due to them becoming clogged with debris, although some mechanical and electrical issues can also affect fuel injectors. My fuel pump is not the problem; what else could it be? The age and model of your Mercedes are primary contributors to these as well as your driving and maintenance habits. Mercedes recall letters will be mailed February 8, 2022, and dealers will replace the fuel rails and fuel injectors. the injector and work it back and forth while pulling it to remove it from the Or, to browse our complete range of fuel additives, click here to visit the homepage. But with a range of engine oils to choose from, each offering pros and cons, knowing which oil your car takes can be difficult. Here, well highlight the symptoms of a clogged catalytic converter and explain the problems that can occur as a result. If you open up the hood and there is a strong smell of fuel then a leaky injector could be the culprit. INSTALLING NEW NOZZLES WILL NOT GUARANTEE YOUR INJECTORS WILL WORK PROPERLY! Now, press the injector into the Because the nozzles are so small, the fuel is atomised, which makes it burn more efficiently. If your Mercedes doesnt start, check the fuel pressure. They replaced the set of fuel injectors and oil filter at my cost stating that the fuel was of bad quality / adulterated. before 1980 had carburetors. Dad, nerd, loves cars, video games, MMA, and his only daughter. Each time you crank the ignition and 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 the check engine light is on, consider yourself lucky, as it can make your diagnosis easier. 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. Many are having difficulty with customer service and others are returning their cars under the sale of goods act. In most cases, you will hear the fuel pump run for several seconds until it builds the necessary pressure for the engine. learn that cleaning is the cure for most bad fuel injector problem. Troubleshooting a bad fuel pump problem on a Mercedes-Benz is easy. For this test, you will need a fuel pressure gauge. 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. Doing this and being stranded on the highway, it is important you detect fuel injector This will also benefit the rest of the engine too. Regular maintenance checks can also go a long way in guaranteeing the longevity of your vehicles fuel injectors. Fuel injectors are now used in pretty much all passenger vehicles. Signs and Symptoms of a Faulty Fuel Injector. Kolkata, India Dealer just did the same trick with my 15 months old C 220 CDI. Be mindful of the following signs of fuel injector failure in Mercedes because of the potential risks that can go with them. Nonetheless, refer to your vehicle owners manual, mechanic, or dealership to confirm the recommended servicing intervals of your auto just to be sure. Follow his Facebook page at https://www.facebook.com/benzinsider and Twitter @giancarloperlas. This happens when the air to fuel ratio is tilted to one side making it too rich that it could burn the catalytic converter. The reason is that the injectors are joined to Another great way to keep injectors in good health is to regularly add a fuel injector cleaner to to your fuel tank. Its less of a problem in older cars working with simultaneous injection systems. The most common symptoms of a bad fuel injector are a misfiring cylinder and a check engine warning light on your dashboard. If you tend to do a lot of short Journeys then youd probably want to have them looked at more often to prevent the build up of deposits. The fuel injectors are located on the engines intake side, under the fuel rail, which is often located on the intake manifold. A fuel injector will usually only fail in one of two ways. As you can see from our video, the fuel pressure in our case ranged between 54-56 PSI, which is normal. 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. Much like spark plugs, these injectors fire one after another, reducing the lag time and increasing the efficiency of fuel delivery. Most fuel injector problems happen 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 In many cases that will solve your problems. Faulty fuel injectors can make it difficult for the engine to accelerate properly. They will be able to diagnose the problem and recommend the best course of action. When the needle valve is opened, fuel under enormous pressure is sprayed into the combustion chamber. Yes, a bad fuel injector can damage your car engine so badly that the car cannot run again except it is fixed. Change your vehicles engine oil regularly to help reduce wear and tear on the fuel injectors and other parts of the engine. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. 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. 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. First, lets look at the signs. If you want to keep your car running, dont neglect the fuel injectors. The most common cause of leaky injectors is the failure of the O-ring where the injector meets the fuel rail. fuel rail. JavaScript is disabled. 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). Here are ways how you can ensure their proper operation to optimize the performance and life of your engine: The fuel filter should be checked periodically to ensure that there are no clogs or restrictions in the fuel line. remember that Diagnosing any problems quickly will help prevent further damage to the injector, the fuel system and the engine. For more tips and advice on taking care of your engine, take a look at the rest of the Redex blog. To diagnose this issue, you need to check each spark plug for signs of wear and tear. Because the injector is seated in the top of the engine cylinder, it is constantly exposed to heat and pressure. How Much Does It Cost To Replace An Alternator. A failing EHA valve can cause concerning and dangerous side effects that make your Mercedes difficult, if not impossible, to driveincluding serious engine problems. It behaves EXACTLY like this video: They do this by spraying small amounts of fuel directly into the combustion chamber, allowing for a more efficient burn of the gasoline. When an injector isnt delivering fuel as it should, this interferes with the fuel-air mix in the combustion chamber. If an engine isnt running efficiently, this can load extra pressure on injectors. If an engine misfires because of a bad injector, there will be an error code that will point to the injector in question. It is recommended that you empty the tank or have it near empty when you replace the fuel pump. Mercedes Benz Fuel Injector Problems | Facebook. 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. Some of the problems are 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. Quickly will help prevent further damage to the injector is seated in the of. Catalytic converter and explain the problems that can occur as a result, you will need a pressure! Common symptoms of a bad fuel injector failure in Mercedes because of a clogged converter! Which is often located on the intake manifold doesnt start, check the pump! Constantly exposed to heat and pressure each spark plug for signs of wear and tear on the engines,... Check engine light is on, consider yourself lucky, as it should, this can extra. 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