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Mercedes-Benz 400SEL Problems

Closing Assist/Door Lock Issues Due to Pneumatic System Problems on Mercedes-Benz 400SEL

Problem Description and Possible Solution

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

(4 people reported this problem)

Mercedes-Benz 400SEL Vehicles With This Problem

RepairPal Verified
Average mileage: 211,559 (178,000–271,000)
1 model year affected: 1993
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Brake problem? Or maybe a faulty head gasket cylinder?
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