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Resources for the Repair and Maintenance of your Mercedes-Benz 400SEL

Mercedes-Benz 400SEL Models:

Image for car images Mercedes Benz 1994 1999 Mercedes Benz S420 size thumb

Mercedes-Benz 400SEL Problems

Electrical & Lights -- Verified

The engine wiring can degrade because the insulating material falls off leaving the bare wire exposed. This can cause many problems depending on which wires are exposed and what they touch.

Miscellaneous -- Verified

Problems with the pneumatic system can cause closing assist and door lock issues.

Drive Train -- Verified

High mileage vehicles may develop a transmission fluid leak from one or more of the oil seals.

Electrical & Lights -- Verified

The electronic throttle assembly may suffer an electrical failure. It is often cheaper to send the valve to a service center for repair that to purchase a new part.

Engine -- Verified

Oil feed tubes break and fall into the crankcase (engine) and the tappet becomes noisy
(ticking), resulting in degraded idle quality. Our technicians recommend
replacing all of the tubes at the same time, broken or not.

Mercedes-Benz 400SEL Questions and Answers

Visitor, 1993 Mercedes-Benz 400SEL, Beverly Hills, CA

approx price ro fix low oil presure

jfichera, 1993 Mercedes-Benz 400SEL, Longwood, FL

When the A/C is on the driver side back seat floor gets very wet, please help.

Chris Simmons, 1993 Mercedes-Benz 400SEL, Windsor Mill, MD

The battery is drained every two days, and other devices such as windows don't operate correctly.my email is c.simmons73@yahoo.com

wlarry, 1993 Mercedes-Benz 400SEL, Shreveport, LA

hood ornament fell off need to know how to put it on

smoothwing, 1993 Mercedes-Benz 400SEL, Hempstead, NY

How do I adjust the windshield wiper arms? The divers side keeps banging when going back to the parked position.

Mercedes-Benz 400SEL Model Years
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