I recently got my 2000 a4 1.8t quattro serviced. And now it is not as fast off the line as it used to be. After about 5-10mph then it picks up like usual. Not only that but my oil temp is consistantly moving up to 325 for no reason then drops bak down to normal temp. There is also like a burning plastic smell coming from the motor sometimes. WHen it was serviced It got an oil change and all 4 tires were replaced and alligned. Whats the deal!! No engine codes have been thrown, and as far as the car tells me all is well but it just doesn't feel right.