Mercedes Benz S320 owners have reported 2 problems related to wiring (under the electrical system category). The most recently reported issues are listed below.
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.
Engine wiring harness has become brittle and is rotting off the copper wire causing shorts shorting out modules transmission has stop shifting from 4th to 5th unless you let up off the gas at high rpm's then let it fall down to about 7000 rpm's then it shifts I have came close to getting rear ended by semi trucks too many times to count this thing could catch fire at any time I just wonder what its going to take to get this thing on the the recall list is mercedes waiting for it to kill someone first or what?.
| Problem Category | Number of Problems |
|---|---|
| Wiring problems | |
| Alternator/generator/regulator problems | |
| Electrical System problems |