TonyDetroit

....and a small engine-like odor develops in the car. I have absolutely no idea what could be wrong. I only just got the car 5 weeks ago (99.5 A4 1.8TQM). I haven't noticed a difference in the driving, but then again...I was just learning how to drive manual then as well. Any ideas?

Audi2ptzero

it might be that your thermostat is stuck wide open and the coolant is in constant cycle.

[tri]liament

i'm pretty sure it's the coolant temp sensor. if you run a search, you'll find that it's happened before. but i dunno about the odor. i know in my case, the sensor is prob busted and is not reading the temp correctly, but in actuality, the temp is probably normal.

ModifiedA4

<center><img src="http://pictureposter.audiworld.com/143/bad-temp-sensor.jpg"></center><p>vag com the car to verify it.

Audi2ptzero

out the thermostat on a 1.8t. I know they did not have to do that on my because the shop put 2 in my car and both would not open at all, so I drove the car for a day with no thermostat till they ordered me a new one.

nanotech

I think I have a dead thermostat Oh well, only six hours labour to fix it...

Try to fix the coolant temp sensor first though, it costs $25 and takes less than an hour to replace, assuming you drain the coolant without removing the bumper. You need to take about 2-3qt of coolant out to empty the pipe the sensor sits in, at least on a 2.8.

TonyDetroit

Luckily I have an extended warranty...and I think all of this is covered ..but thanks for the info

nanotech

I miss my warranty

TonyDetroit

.....it's a 99 A4 1.8TQM and it had 17,231 miles on it. The dealer 3 year was up, but I purchased a 100,000/5 year bumper to bumper warranty that the dealer said covers everything from the cd player to the turbo. It was $1,250 and in my opinion well worth the money.

Oh, and I LOVE my car!!!

[tri]liament

wow that's a great deal... and that's awesome mileage for a 99