Join Date: Jan 2006
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This is for all the TDi gurus out there....
My dad has 98 VW TDi GL 5spd. Here recently his mileage and power (completely stock car) dropped of dramatically. It could barely move itself and was getting around 20mpg. Checked everything and mechanically it was fine, but the computer was shot. Sent it off and got it back and it helped it out a little bit. Sent it off again, and it did a little better. After a while of just driving it things are about back to normal. Mileage back in the 40's and feels like it did when he bought it.
Now he has a 70ish mile drive to work with about 60 miles of non-stop highway traffic. Driving at 70 on the freeway and shifting at about 2500rpms, he can squeze 48mpg out of it. If he speeds up to 75, mileage drops to 44 and at 80 it goes to about 40-42. He says mileage is still a little low :shrug: but not nearly as bad as it was.
Has anyone experienced similar problems or have any ideas that could revive the old thing? (He bought the car in 2002 w/ 40k miles and he now has 180k miles on it)
thanx for the help in advance