CowleyStJames
Senior Member
- Joined
- Oct 13, 2015
- Messages
- 250
- Reaction score
- 137
- Location
- Oxford
- Your Mercedes
- Mercedes-Benz E63s, Old knackered G wagon
If I suspect you have the OM651 engine you will have a cat before the DPF as on mine, only found out what is was recently myself when cleaning my own DPF. Didn't think a cat was in diesels until this. Probably why your garage man was on about 2 DPF,s.
Definitely wouldn't go back to him if he doesn't know the difference between a DPF and Catalytic converter