How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Marty Your Own Question
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53945
Experience:  Bosch Certified Master Tech. Over 35 years experience.
Type Your Mercedes Question Here...
Marty is online now
A new question is answered every 9 seconds

Sl 500: My 1994 Mercedes sl 500. Will idle min than

Customer Question

My 1994 Mercedes sl 500. Will idle for 10 min than stall out. will not restart till it cools.
Submitted: 2 years ago.
Category: Mercedes
Customer: replied 2 years ago.
The car was running hot 100 deg. for a while never over heating. replaced the water pump. let it idle and 10 min. it stalls out. After it cools same thing 10 min. and shut off. 80 deg. on the gauge. Had the same problem prior. shut the car and go shopping come out in 15min. car would not start. Is there a temp. sensor that may be picking up the wrong temp. and killing the eng?
Expert:  Marty replied 2 years ago.
Hi, you need to see if you have spark from the coils when the car won't start. If you have no spark I'd say that your ignition control module is failing. A bad crankshaft sensor could also cause the problem. If your sensor ohms out good when the car will not start I'd try a used ignition control module. The sensor should ohm out between 600 - 1200 ohms.
Let me know if you have any questions.
Customer: replied 2 years ago.
HI. Spark module sounds about right. What's the chance one of the coils are breaking down.?
Expert:  Marty replied 2 years ago.
The car would still run with one bad coil it would just run on 4 cylinders. This sounds like a bad module.
Let me know if you need anything else.
Expert:  Marty replied 2 years ago.
Hi, I'm just following up with you on this question. Do you need anymore help with this?

Related Mercedes Questions