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.
Resources for the Repair and Maintenance of your Mercedes-Benz 350SDL
Mercedes-Benz 350SDL Models:
Mercedes-Benz 350SDL Problems
Instrument Cluster, Turn Signal/Wiper Combination Switch May Fail
Electrical & Lights --
Verified
The instrument cluster, along with the turn signal and wiper combination switch, can fail.
Rear spring wear may cause rear end to sag on high mileage vehicles
Suspension & Steering --
Verified
On high mileage vehicles, rear spring wear may cause the rear end to sag.
Squeaking/Worn Brake Pads May Require Rotor Replacement Also
Brakes --
Verified
The brakes may begin to squeak at about the 50 percent wear point. This is due to the size and material used for the brake pads and rotors. The brake rotor surfaces become uneven, causing a lip to form at the outer edge. This will generally require replacement of the rotors when the pads are worn (pad life varies depending on driving style and terrain).
ABS Modulator Failure Due to Dirty Brake Fluid
Brakes --
Verified
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.
Mercedes-Benz 350SDL Questions and Answers
Visitor, 1990 Mercedes-Benz 350SDL, Staten Island, NY
top of the injection pump where the lines go in leaks fuel.i would like to no if theres o rings.and if i can change them my self.
Visitor, 1990 Mercedes-Benz 350SDL, Brielle, NJ
this will be my only car my commute to work is 60 miles. the car is in excellent condition. do i do it?
blueline411, 1990 Mercedes-Benz 350SDL, Port Washington, NY
Driver side door lock is jammed so that the key won't turn, lock or unlock. The lock itself works when locking from the passenger door. Tried jiggling, but no effect. Anybody else have this...
David Pufnock, 1990 Mercedes-Benz 350SDL, Mesa, AZ
Is there an access panel under the mat in the trunk?
moneymarc, 1990 Mercedes-Benz 350SDL, Chesapeake, VA
The problem happens after driving at higway speeds for apbout a hour then the transmission will downshift onto lower gears and will not go back into 4th
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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.
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