1996 Mercedes-Benz S420 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1996 Mercedes-Benz S420
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1996 Mercedes-Benz S420 ProblemsClosing Assist/Door Lock Issues Due to Pneumatic System Problems
Problems with the pneumatic system can cause closing assist and door lock issues.
One or more door windows may stop working due to a failed window regulator. Replacement of the failed regulator will be necessary to correct this concern.
A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.
1996 Mercedes-Benz S420 QuestionsIs my transmission going out or can i put fluid in it,if so where? (1 answer)
My car all of a sudden wouldn't shift past 25 miles per hour and was sounding like it was trying to shift but was going all the way into the red. I had my boyfriend drive it and it worked for him. Then i drove it later that day for a bit it was ok and then started again and he then drove it a...