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have a mercedes sdl with miles the electrical system

Sent to Car Experts December 16 2005 at 4:33 PM
   

have a 1987 mercedes 300sdl with 194,000 miles    the electrical system has a short or something because when you turn the radio on the lights go out and when you open the drivers side door they come on, when you push the button on the inside frame of the door they also go out, then you open the door and they come on can you give us an indecation where the problem could be
thanks
George Try   gtry@ulink.net

Optional Information:
1987 Mercedes-Benz 300sdl 300 diesel

Already Tried:
nothing yet

Customer (name blocked for privacy)
Status:  Closed   Value: $5
Info Request
December 16 2005 at 4:58 PM (25 minutes and 27 seconds later)
         
Have you had anything recently worked on or been in an accident?
kat -- Auto Service Technician -- 100% Positive Feedback on 60 Car Accepts
20 years automotive experience and 5 years NISSAN factory trained technician
Reply
December 17 2005 at 10:13 AM (17 hours and 14 minutes and 35 seconds later)
         
no accident, but we did have trouble with the ignition switch locking up and wouldn't let you turn it on. we took it to the mechanics and he told us to leave the key in and when we shut it off to turn the wheels to the left or right before shutting it off. we also took it to the mechanic about the electrical problem and he found a bad transister and thought that was the problem but it is still doing it.
Customer (name blocked for privacy)
Answer
December 19 2005 at 7:01 PM (2 days and 8 hours later)
         
ACCEPTEDCheck Mark
It has to be somewhere inthe same circuit as the radio. Find the fuse for the radio and check everything on that circuit. Start by unpluging the radio and tracing the wiring and look for damages. Also wiggle the harness that goes from the car to the doors and see if you get a response. You could have a wire that is making contact with some speaker wires and causing this as well. If you have any speakers that are not working then that would be a good place to start.
kat -- Auto Service Technician -- 100% Positive Feedback on 60 Car Accepts
20 years automotive experience and 5 years NISSAN factory trained technician
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