The instrument cluster, along with the turn signal and wiper combination switch, can fail.
Resources for the Repair and Maintenance of your 1991 Mercedes-Benz 350SDL
1991 Mercedes-Benz 350SDL
1991 Mercedes-Benz 350SDL Problems
Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.
On high mileage vehicles, rear spring wear may cause the rear end to sag.
Power steering hoses and components can develop leaks.
As brake fluid becomes dirty over time, it can cause a failure of the anti-lock brake system (ABS) modulator assembly. Our technicians recommend a complete brake system flush every two years to help prevent this issue.
1991 Mercedes-Benz 350SDL Questions and Answers
My cruise control works but it will not stay engaged for more than a minute. Any thoughts?
It had not been driven for a year. The Battery was replaced 6 months ago, along with the spark plugs. The glow plug indicator does not turn on on the dashboard anymore.
My issue is it will turn ov...
I found only one fuel filter on the front of the engine. It was simple enough to replace, but I failed to fill the new filter with fuel first. I have cranked the engine enough that the new filter...
1991 Mercedes-Benz 350SDL Reviews
beautiful large comfortable great suspension elegant interior torquey 25 mpg diesel engine. some engines had mysterious rod problems ie "the rod bender" this condition happened on vehicles generally with fewer than 100k miles.