When Reverse Gear is selected, the clear lens Reversing Lights do not work.
Have checked the bulbs all OK

I want to check the operation of the Reversing Light Switch but I do not know where it is located ??
Could anyone help pse and advice as to its removal and replacement ??

Thanks

Just to add this R170 refers to a 1999 SLK 230 Kompressor hence othe MB using this chassis may well be able to help me with an answer to my question ?
Thanks

same problem with my w140, bad gear selector. I will hook up toogle switch, and mount super brite, lamp. as puny reverse lite's really never helped

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt

Try looking in the shifter mechanism. That is where it is in the W210s of that same era.

Had the same problem with my W210, had to open up the selector, pull the contact cartridge, carefully burnish (with a business card) and slightly bend the contact leaves to get it working again.

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech

jay, have not been able to get lower gears for 7 years, food everything higher than a redwood

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1999 w140, quit voting to old, and to old to fight, a god damned veteran, deutschland deutschland uber alles uber alles in der welt