Table 1 shows one common visibility related problems of the 1997 Mercedes Benz 420.
| Problem Category | Number of Problems |
|---|---|
| Windshield Wiper/washer problems |
While driving about 65 mph in rainy weather windshield wipers would not activate when the switch was turned on. Vehicle was taken to dealership, where the fuses were checked. A control unit was replaced at owner's expense. Dealership offered to repair unit free if owner lefet the defected part.