Mercedes Benz S320 owners have reported 2 engine and engine cooling related problems since 1996. Table 1 shows the 2 most common engine and engine cooling problems. The number one most common problem is related to the vehicle's gas recirculation valve (egr valve) (1 problem). The second most common problem is related to the vehicle's engine and engine cooling (1 problem). For details of each of the problem category, use the links in the table.
| Problem Category | Number of Problems |
|---|---|
| Gas Recirculation Valve (egr Valve) problems | |
| Engine And Engine Cooling problems |
The wiring that controls the electronic throttle actuator has insulation that has disintegrated causing a short in the wiring resulting in an instantaneous loss of power. Vehicle was moving at the time on the highway. Read details...
The total engine hwire harness insulation is falling apart from verious area in the engine bay. Which making the wire to expose - possibilities of fire in the engine if it short circuit. Do not know what to do know. Not able to find a new engine wire harness for the vehicle . Read details...