1999 Mercedes-Benz S420 Repair and Maintenance Costs
A guide to repairs, service, and maintenance costs for your 1999 Mercedes-Benz S420
The national average repair and maintenance cost for a 1999 Mercedes-Benz S420 is between $782 and $955 per year. Repair and maintenance costs vary depending on age, mileage, location and service provider.
Repair Cost Index Score
1999 Mercedes-Benz S420scores in the middle range of all car models for average repair and maintenance costs
- average of all models
What does this score mean?
Annual Repair Cost
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 engi...
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.
Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower motor.
had to remove the transmission cross member to get to it
I am trading in my 1999 MB S420 for a new car, but not a new Mercedes. My dash lights just came ...