20 Most Recent 2004 Mercedes-Benz Mercedes Benz M Class Questions & Answers

The air box is located on the LHS of the engine. There are clips located at the top and bottom side of the box. Poorly designed as this does not open up cleanly, and has increased chance of trapped dirt falling into intake. Ensure all clips are unfastened, it catches at the rear, PULL this up and then toward you to expose the air filter.

weak battery in key most likely

Synchronization
Turn ignition switch to position II. Turn ignition switch to position 0 and remove key. Within 1 minute: Press and hold key lock button. Press unlock button 5 times. Remote control should now operate system. If not: Repeat procedure.
Programming
When
Key remote control added or replaced. System malfunction.
How
Keys can only be programmed using diagnostic equipment.

Check that the wiper arm hasn't come loose.
Tighten the nut under the cover.

brake swich to replace,located behind the brake pedal.

the solution i have seen here , u just search for it.

it may not be the pump the common thing is the o ring seal in the fuel lines which go to pump the best thing to do replace o rings first to see if that will solve problem if it is from the pump there is a seal kit you can get from dealer and replace seals

hi this is the service indicator, it means you have either, 28100miles before next service, or if the wrench is showing, you have gone over your next service by 28100miles...hope this helps

Service indicator
4 days overdue for service
Check your service book for last service,as indicator might not have been reset.

You have a d.a.s. prob;em( driver assist system). For some reason there is a communication between your transponder(smart key) and your vehicle control modules. It is a very complicated system and cannot be properly diagnosed without a s.d.s.machine.(star diagnostic system). I would first try another key and see if the problem persists. If the car starts fine with another key then you know the problem is a defective key. Either way you will have to order a new key from the dealer and have it programmed with a s.d.s. machine when it arrives. If the car starts I would take it and have it scanned for codes.

http://www.mbusa.com/mercedes/#/technicalManuals/
I think you have to sign up.

change your fuel filter!