Picked up my 1.2 tsi yesterday. Went to London today, round trip of about 60 miles and averaged 44.5 according to trip computer. Better than I was expecting given cars done total of 90 miles now
rji,
Your figure of 41 sounds bad. Are you doing a reasonable of motorway miles I wonder? If not it's possible that the DPF isn't having the trapped carbon particles burnt off in the most efficient manner. This can be happening even without the DPF light coming on. Honest-John has a good article on this topic but I'm not allowed to post the link.
About halfway down there's a piece from Volkswagen about what happens.
I don't do enough miles do make a diesel really worthwhile but the above was enough to put me right off!
If you don't think the DPF is the problem then I'd pursue the matter further. If you can show you did much better with other diesels then I'd have thought you had a good case. That's one reason why I always record all fuel bought and miles traveled.
Driving like a Nun? why do people still think cars need 'running in'? The best-running year old cars are Hire cars; driven hard by a mixture of drivers with different patterns of useage. Piston rings will never seal unless the engine is used hard from day 1. Cars build in the 1950's needed running in to carefully introduce all the badly machined parts to each other and wear them in, hard driving from new would just seize the engine. Now parts are so well made, 'running-in' can kill an engine.
silveralex,
"As they say- its not what you got, its how you drive it."
I couldn't agree more. My present car is a Honda Civic 1.4 which claims 44.1 mpg and I have recorded all the petrol I've ever put in and all the miles I've driven. Average mpg is 43.5. It will be interesting to see how close to the 55 claimed mpg I can get.
I hear today that they have the car in but I'll now wait 'till March so as to get it with 11 reg. It's a 5 door SE in Emocion Red with winter pack and Tom-Tom pre-install. Ordered just before Christmas so I get the 17.5% off even though I do have to pay the extra VAT. ...If that makes sense...
Hi rji & Frudo,
The main issue as I see it is that there is no way of telling whether or not the car has been in the active regeneration mode burning extra fuel or if it has, on how many occasions. In fact there seems to be an implication that as long as the DPF light has not been on then all is well. I suppose things are OK in the sense that the DPF is not wrecked but the fuel consumption could still have been suffering without anyone knowing.
when new was 41 mpg and is now only 46 mpg.