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Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53151
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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I have a 1991 MB 560sel with 23,000 original miles. .All of

Customer Question

I have a 1991 MB 560sel with 23,000 original miles. .All of a sudden, yesterday my speedometer and odometer stopped working. I checked all the fuses and corresponding functions and everything is working.
Submitted: 1 year ago.
Category: Mercedes
Expert:  Marty replied 1 year ago.

Hi, if both the speedometer and the odometer stopped working the problem is most likely going to be the sending unit in the transmission or the speedometer itself. I'd suspect the sending unit in the transmission will be the problem.

Let me know if you have any questions.

Marty

Customer: replied 1 year ago.
How is the sending unit tested or assessed?
Expert:  Marty replied 1 year ago.

You can perform a voltage test at the connector on the instrument cluster. I can send you the test sequence.

Customer: replied 1 year ago.
Please do.
Expert:  Marty replied 1 year ago.

Click on the instructions below.

Expert:  Marty replied 1 year ago.

Let me know if you need anything else. Please remember to click on a rating for my help today.

Marty

Expert:  Marty replied 1 year ago.

Hi, I'm just following up with you on the Mercedes. Do you need anymore help with this?

Was my answer helpful?

Marty