SL/R129: Rollbar lamp on and rollbar switch flashes (sometimes)
Thread Starter
Newbie
Joined: Aug 2013
Posts: 14
Likes: 0
1991 Mercedes 300 SL
Rollbar lamp on and rollbar switch flashes (sometimes)
1991 300SL. About 50% of the time while driving the Rollbar warning lamp comes on and the rollbar switch lights flash.
Suggestions appreciated on checks, fixes or parts to replace.
Suggestions appreciated on checks, fixes or parts to replace.
Thread Starter
Newbie
Joined: Aug 2013
Posts: 14
Likes: 0
1991 Mercedes 300 SL
Thanks, I will check electrical. For the 1991 I have an LED I can hookup to the plugs in the engine top left -- but by STAR diagnostic do you mean something more that I'd have to take into a dealership?
Senior Member
Joined: Apr 2019
Posts: 428
Likes: 96
From: Houston
001 s600, 94 sl600
there are numerous electrical systems involved in the top systems and each of them can be faulty. A good computer diagnosis will likely point to the faulty switch,connector, position sensor. There are position sensors everywhere and one of them is out of adjustment or you have a (mostly) broken wire.
Junior Member
Joined: Apr 2021
Posts: 28
Likes: 5
S55, SL500, 500SL
