Fuel Injector Replacement - C Class - W204 - Mercedes-Benz



Fuel Injector Replacement - C Class - W204 - Mercedes-Benz


Fuel Injector Replacement Time: 3 hours Tab: $5 to $600 Talent: 3 Tools: T30 Torx, E10 Torx, 17mm wrench, small flathead screwdriver Applicable Models: Mercedes-Benz C350 (2008-14) Mercedes-Benz GLK350 (2010-14) Parts Required: Injectors, white lithium grease, O-rings Hot Tip: Check for flooded cylinders Performance Gain: Better-running engine, improved fuel mileage Complementary Modification: Replace worn out hoses If your car is starting to run rough, getting horrible gas mileage or have an error code, there is a good chance it is time to replace the fuel injectors. A properly working injector will send a precise amount of atomized fuel into the induction system at a designated time. A weak or improperly working injector can do everything from send no fuel, to leak raw, non-atomized fuel into your engine. If you are going to be replacing your injectors, the first step is to prep the car. I like to tell people to pull the fuel pump relay and then try to start the car. The car will turn over and then die. Do this about two to three times. It will help drain excess fuel out of your system. Also open the gas cap to help depressurize the system. Then, make sure that the car has cooled down; you don't want to be working with gasoline when the car is hot. Have a fire extinguisher handy. There will be some spillage of fuel, as it's nearly impossible to prevent. Also, wear chemical resistant gloves if you don't want to get any gasoline on your hands, and make sure that you have plenty of paper towels or rags to help you clean up. Perform the injector removal in a clear, open, and well-ventilated space. It may not hurt to have an assistant around in case there are any problems. You are going to be pulling the injectors out from the manifold. Make sure to clean around the area and blow it out with compressed air so you do not get dirt down into the injector openings. Replacing Your Fuel Injectors Fuel injector wear out, leak and fail. Part of your regular maintenance should involve replacing them. Applies to: C350 (2007-14), SLK350 (2004-14), CLS350 (2004-14), CLK350 (2005-14), E350 (2005-14), S350 (2005-14), SL350 (2005-14), R350 (2006-14), ML350 (2006-14), Viano (2005-14), Sprinter (2006-14), CLC350 (2008-14), GLK350 (2008-12)

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