Raymie
Member
I've been bothered by a small diesel leak somewhere on my car as I can smell it and now that the undertray has been removed for a few weeks there is a tell tale patch on the drive, I will now have a close look around the engine bay (I didn't know there was a fuel cooler on a 75TDi ? )to me 50mpg seems low - when I first got mine it was doing just above 50 (not sure what now the weather has changed) and I found out that the fuel cooler under the car was leaking (through the metal), so as I drove v small drops of fuel would drip on the road / it was not that obvious - now that it's fix I get about 60mpg which still does not seem that good as I get 45mpg out of my big 5 series BMW (2002 2.5L )