Starting?

Tiny
SGBONDO
  • MEMBER
  • MERCEDES BENZ
I have a 1989 Mercedes 420SEL and I have being problems with the battery: the car will start all day long but will not start when it stays overnight. I have taken it to mechanics and they could not identify the problem. The problem started when the mechanic replaced the alternetor and since then I have not been able to use my car, almost two years ago. Does anyone has any suggestions?
Friday, January 5th, 2007 AT 3:13 PM

1 Reply

Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
It could be alternator related, but with a volt-ohm meter and the engine running, check the volts on the battery. It should be 14 or over. I would also recommend unhooking a fuse at a time and note the spark of the positive cable as it is touched back on the battery. Something is discharging the battery. Once the spark stops and the fuse for that circuit is put back in and sparks the connection again you need to investigate the items on that circuit.
Was this
answer
helpful?
Yes
No
Friday, January 5th, 2007 AT 4:47 PM

Please login or register to post a reply.

Related Engine Not Running Content

Car Cranking but Not Starting? Try This
VIDEO
Car Cranking but Not Starting? Try This
Instructional repair video
Engine Not Starting
GUIDE
Engine Not Starting
Over the past 20 years at 2CarPros we have identified the top problems that are easily fixed. This guide can save you a trip to the repair garage or calling a tow truck and...
VIEW MORE