R129 inside rearview mirror question
 

Hi again… great forum…

Still trying to figure out some of the details of my new old 500SL. Found out, that the fake alarm, wasn’t fake at all. Did wake up, all the neighbours last Sunday:rolleyes:

Can somebody tell me what the little ”eye” in the front for the inside rear-view mirror of the R129 ‘93 is used for, the user manual doesn’t say…?

Rud

I belive that the sensor for the infared key.

I have a sub question for 129 owneres with this kind of mirror. In particulare 1996 and later years.

Being that this mirror is connected to the Driver Authorization System (DAS) via the CAN buss. If the mirror is removed can you unlock and lock the car and start the engine.

John Roncallo

Hi John and thank you..

I have tried this option, if it should be the infrared receiver for the remote keyless entry, but it doesn’t seem to work. Maybe it’s broken. Tank you again.

Rud

I belive there is a battery in the key.

John Roncallo

The key works, but not with the mirror
 

:confused: Yes.. and? The key work on the doors and the trunk, but not at the mirror. So I'm not sure if it's a battery problem in the key.