300e central locking problem

Feb 18, 2005 3 Replies

About 1 week and a half ago my 1990 300e died on me.After diagnosing the problem it turned out to be a worn out voltage regulator on the alternator. I fixed the car after about a week in my driveway. Now the central locking system will not lock the doors, I have to manually lock each door. I think the fuse is fine because the anti theft system is still working. The only thing i remember doing is unlocking the car and locking it a few times when it wasn`t running. Maybe it is vacuum locked or something..........I also boosted the car a few times as well and maybe that had something to do with it. The locks functioned great before this , so i doubt that i have a vacuum leak.



any thoughts would be appreciated



snipped-for-privacy@eastlink.ca


The locks are vacuum operated. What else could it be?

Ah. Might be a good idea to replace all the fuses. When they get old they sometimes stop working even though they aren't blown.

What does this fuse protect?

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