All Mercedes Models between late '92 and mid '96
Barring those with M103 engines which were still being carried on in '92.

The biodegradable wiring issue affects the whole car. It's just that being exposed to excessive heat in the engine compartment area, the wiring there is the first to show problems.

Another "Green" issue is the solder of circuit boards. "Non lead" solder was used and this has issues.