I'm fairly new to the ML430.
My concern is the sloppy feel of the ignition switch.
There is no discernible detents between I and II and the
Start. Also the tension of the return spring while activating
the starter is weak.
I'm used to BMW and they have a definite click and detent.
I have read other posts but still fuzzy about what I need to do.
Is there a separate switch? Is the key tumblers and switch a dealer
only part?
Can I disassemble and clean my switch?
I've just been through the change out of the Ignition switch on my 2005 ML-500 . It was starting too lose the de-tent feel Acc #1 & Run position #2 along with getting harder to turn to the engine Crank position . But The return from Crank position back to #2 run was still ok . My Issues were turning back to Off / remove key from the tumbler. It seem to turn easy enough , But when I removed the key from the tumbler . The warning system interior beeper kept beeping like the key was still in the Tumbler. Even though I had it in my hand or on the work bench. Another thing , the remote locking system would not function and the little signal red light between Low range & fog light would not sequence properly. So I would bump the tumbler area on the column and things would operate properly for 1 turn of the key . Then go back to creating issues . I replace the the switch only , P/N ( 168-545-10-04 ) About a 2 hour job . You have to remove the under dash panel. The turn signal / light switch
( Black ) covers and the small Left & Right steering column covers. Small Hands & strong fingers , small shoulders help . There is a wire harness connector which needs to be remove via pressing 2 small clips inward ( 180 * apart. Wire colors orange (key sense) , Red12V + , White (starter)Pink 12V position #2 , Green ?, Tan position #1 . The tab has a red marker next to it . After you pull the connector off . The push the tabs in a little deeper to release the actual switch it self. Take your time . The new switch fixed my issues & also let me resyc my keys too ! Cheers Patrick T.
My new part has been installed. Once I figured out the pictures, it went well.
The old switch was ratchity and stiff. The new switch is crisp and precise.
I now feel the actual detents and clicks.
I do have one question, would some graphite spray improve the overall
feel of the key action?
No graphite. It lasted 17. Can't ask for more than that.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Mercedes-Benz Forum
7.6M posts
693.6K members
Since 1999
BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more!