Originally Posted by
pauldonachyrs
I've just bought a 51 plate tddi it's saying 34 mpg on info display is that correct or should I be getting more to the gallon
You'll be getting less than that. Probably under 30. TDDIs aren't as economic as TDCIs, but even then, that does sound very low unless all you're doing is driving around town, and thrashing the nuts off it.
TDCIs are faster, smoother, quieter and more economical than TDDIs but TDDIs don't have the same injector issues, or when they do they aren't anywhere near as expensive. They do suffer from lift pump failures, but it's not an expensive fix.
If I was looking for a Mk3 I'd only consider a Mk3 TDCi130 (or 2.2 155) and only one that had already had a replaced DMF and clutch, and replaced injectors. I get a high mileage car that had had the work done rather than a low mileage one that hadn't. The 'danger zone' appears to be between 80-100K miles.