I still have the problem that my fat one has too much thirst and little performance! Yesterday, I had unscrewed the spark plugs, all with thick dry soot...
have so far
- replaces the decomposing ventilation hoses (miss air is no longer)
- coolant sensor g62 (for motronic) exchanged
- air flow meters cleaned
- air filter renewed
- intake air temper seems to be OK. to be measured loudly
A new lambda probe is coming in soon
Thank you very much for further tips

Benni
.