W163 reversing light switch

[pace]

Hi all, I'm sure this will be a very easy one for you!
The reversing lights/parking sensors, etc on my 2003 ML 270 have been playing up and have now stopped working altogether.
So before I start pulling things apart, where is the reversing light switch located on this model? is it near the gear selector or buried deep in the gearbox?

Thanks in advance.

 

[television]

It is in the selector box, but it might be part of the ecu

 

[pace]

Thanks for the quick reply. I have been hunting the net for an exploded diagram but have had no luck. I have seen a picture of the part http://www.ebay.co.uk/itm/REVERSE-LIGHT-SWITCH-MERCEDES-M-CLASS-W163-1998-2005-54792-/221091708980

But I dont know if I can get to it or replace it easily?

 

[pace]

If that is the correct part it looks as if it is completely separate from the ECU if that is what you meant? It looks like it fits mechanically to the gear selection mechanism.

 

[television]

It is too late tonight to check, I will try in the morning

 

[pace]

Does anyone have any thoughts on this? (before I start pulling it apart and break something!)

 

[television]

as of 09-99 it is an electronic gear shift, I can get no real info on this

 

[television]

I have just been looking at the diagrams and a separate switch is shown known as S16/2 back up switch

 

[pace]

Thanks for looking in to this for me. Sorry for the slow response, I've been away for the weekend. Do you have any idea of the location of this switch?

 

[television]

Nope no luck at all, so it must be in the box as there is no where else it can be

 

[pace]

Oh dear, that's not good! Maybe it is a duff relay? Does anyone electrically minded know which is the relevant relay and where it is located?

 

[television]

I have searched again and just nothing on the reverse lamp switch at all in WIS that I can find

I have looked under
Gear selector
exterior lamps
Electrics
warning system

 

[pace]

Thanks for all the help. Are there such things as circuit diagrams available or is it the case that everything is ecu controlled now? If it is too much of a pain to fix I could always rig up a switch for the reversing lights and parking sensors (I am really missing those!).

 

[television]

There switch is shown, but I have no idea where it is other than the gear selector housing and the problem is worse with the electronic shift as all in one

 

[pace]

I think I may have to take a trip down to a local auto electrician.

 

[television]

I think I may have to take a trip down to a local auto electrician.

They will not have a clue if not Mercedes specialist

 

[jibcl500]

There is a reverse switch on the 6 speed manual box, assuming yours is auto then you dont have one.

Star diagnostics is the first thing to do.

jib

 

[television]

There is a reverse switch on the 6 speed manual box, assuming yours is auto then you dont have one.

Star diagnostics is the first thing to do.

jib

You must have one with an auto

 

[jibcl500]

You must have one with an auto

Reversing lights and parking sensors on the same circuit, selector fault, pilot bush or electro plate.

Needs star but my guess pilot bush wet.

jib

 

[television]

Reversing lights and parking sensors on the same circuit, selector fault, pilot bush or electro plate.

Needs star but my guess pilot bush wet.

jib

I do not think so and nothing to do with the electro plate at all, its all done on the shift control