Hi guys,

This a problem on my '00 C280. I am asking here because I have found this to be the best resource for my ML which is also a 112.

I started the car this morning and the CEL came on, checked codes as follows:

P0141 O2 SENSOR HEATER MALFUNCTION (BANK1 SENSOR 2)
P0161 O2 SENSOR HEATER MALFUNCTION (BANK2 SENSOR 2) PENDING

After car warmed up, I erased the codes and drove 30 miles and the CEL did not come back. Although being heater related they may come back again when starting on cold engine tomorrow. It may not be the O2 sensors because I don't think they will both go bad at the same time.

Any help???

Rene
'00 C280 56K, '99 ML320 80K