Mercedes-Benz W124 E-Class Fuel Injector Replacement

Описание: If your car is starting to run rough, getting horrible gas mileage there is a good chance it is time to replace the fuel injectors. Modern fuel injectors are made of plastic. I do not recommend having them serviced or rebuilt. Older mechanical injectors opened by fuel pressure alone and were easier to service. Newer injectors are made of plastic, need an electronic pulse from the ECU to open and are better replaced than sending them out for service.

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.

You're going to be working on the fuel system so have a fire extinguisher handy (and know how to use it). 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. 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 will need to remove the crossover air pipe before beginning. Please see our article on throttle body removal for further assistance. Note: the throttle body and resonance valve are missing in these pictures. You do NOT need to remove them for this job.

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Time: 4 hours
Tab: $20 to $270
Tools: 10mm socket:https://www.pelicanparts.com/Mercedes..., 15mm, (2) 17mm wrenches:https://www.pelicanparts.com/Mercedes..., 6mm Allen:https://www.pelicanparts.com/Mercedes..., pliers:https://www.pelicanparts.com/Mercedes..., flathead screwdriver:https://www.pelicanparts.com/Mercedes..., oil filter:https://www.pelicanparts.com/Mercedes... wrench:https://www.pelicanparts.com/Mercedes..., rags:https://www.pelicanparts.com/Mercedes...
Parts Required: New injectors:https://www.pelicanparts.com/cgi-bin/..., white lithium grease
Hot Tip: Check for flooded cylinders
Performance Gain: Better-running engine, improved fuel mileage
Complementary Modification: Replace worn out hoses:https://www.pelicanparts.com/techarti...

Applicable Models:https://www.pelicanparts.com/catalog/...
Mercedes-Benz 260E (1987-89)
Mercedes-Benz 300CE (1988-93)
Mercedes-Benz 300TE (1988-93)
Mercedes-Benz 400E (1992-93)
Mercedes-Benz 500E (1992-93)
Mercedes-Benz E320 (1994-95)