1997 Mercedes-Benz S320 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1997 Mercedes-Benz S320
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1997 Mercedes-Benz S320 ProblemsClosing Assist/Door Lock Issues Due to Pneumatic System Problems
Problems with the pneumatic system can cause closing assist and door lock issues.
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.
Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower motor.
1997 Mercedes-Benz S320 QuestionsAs I,m driving my transmission slips sometime! what's the cause of those? (1 answer)
When I stop! I have to put it in park then back in drive to go.