Originally Posted by
s.mpr
Exhaust behind engine, where O2 sensors are. These are glowing hot when at bouncing/rough idle. Thanks.
Strange... I am wondering if your exhaust check (thinking partial plugged cats) is misleading since it seems the cats are glowing like this. Maybe way too much unburned fuel is present at cats?
A lot more information (like a good code reader made to tap into the MB codes and test data) looks like a must
.