[R129 SL] Re: Central locking system issue

[r129list@mbcoupes.com]

Thor, first thing to check is if the vacuum pump for the central 
locking system gets 12V+ power. Could be a fuse failure, or the 
connector loose, or bad earth (mass). The lumbar support system for 
the seats is also run by the pump, so that is the same problem.

Richard Becker
London


> Hello All! I have a 1997 500sl Sport and am having problems with my
> central locking system. The door and trunk locks only works by using
> the key. The entire central locking system is dead. If i try to use
> the remote or cabin switch they do not open. However two days ago they
> started working for about one hour but now they are dead again. The
> alarm still works using the remote, but that's all. Also the air
> pillows in the drivers seat also are dead. Any ideas what the problem
> can be? By the way we have had quite a cold spell this last week with
> temps around 0. Joys of living in the Chicago area.
> 
> Best of regards & thank you,
> 
> Thor Dahl-Lowe
> MrThor@att.net