Mercedes Benz repair: 420 Sel Console light, 420sel, security module
Questionwhunter, I have a 420 sel 1987. When I turn the car on all of the console indicator lights come on and stay on. What could be causing this? Is there a power pulling from a area of the car? I battery that I have is only three months old. When I started the car up and allow it to warm up, after 15 mins I turned the car off and it would not turn over. It was as though the battery was failing. After allowing the car to sit several hours(8+ hrs) with trying it again, the car started back up. The only thing is I am still seeing all of the car indicators along the console.
AnswerThis sounds almost as if the security module is active = shutting down the engine electrical to prevent theft.
How to disable alarm on 86 420SEL
http://www.mercedesshop.com/shopforum/showthread.php3?p=456907#post456907
If this fails to resolve your issue, take it to your local MB dealer, or independent MB specialty shop.
Danger:
If you have a wire short = fire hazard = you need immediate help.