Unusual noise after letting off brake


#1

I recently bought a used Audi TT Roadster (only 21K miles). The car looks and runs like new, but when you first start out there is a funny noise after letting off the brake. It sounds a bit like an electric motor reving up for about 3 or 4 seconds. This problem goes away after about 15+ minutes but returns each time I start the car. It doesn’t interfere with the operation of the car, but it is annoying. What could it be???

Thanks,



John C. Snider

Kissimmee, FL


#2

If the vehicle has ABS, it could be the ABS pump running that you hear.

Tester


#3

You are hearing the ABS system running through its self-test, and you will hear this noise for a few seconds every time that you start the car–usually after driving a few feet. This is a perfect example of information that can be found in your Owner’s Manual, and this would be a good time for you to begin learning about the operation of your new car.

However, I am assuming that you meant to say that the noise goes away after 15 seconds, rather than 15 minutes. If the noise persists for more than a few seconds, then this is something that should be checked by a qualified Audi mechanic.


#4

Sounds like the high-pressure pump for the ABS. It’s normal for the pump to run when you start the car, but I don’t know why it’s running after you step on the brake.


#5

The sound exists for about 3 to 4 seconds after letting off the brake. It is fairly loud. It will continue to do this each time I step on the brake for about the first 15 minutes of driving and then it goes away until I stop the car. It returns once I restart for the same time sequence. I don’t have the owner’s manual yet as the seller didn’t have it available. They are sending me one. I agree, I need to reference the manual to determine if I need to fix something under warranty, or if this is normal for this car.


#6

I hate to say this, but here goes:

You may have found the reason why the former owner decided to get rid of the car. Audi repairs tend to be time-consuming and expensive. These cars are fun to drive, but the words “reliable” and “Audi” are rarely used in the same sentence unless “reliable” is preceded by the word “not”.


#7

After reading the other posts, I think it’s OK. When I reviewed the reliability of Audis recently, I was impressed that they build cars with average reliability, with their cars within a narrow range. They don’t seem to have really bad models or unbelievably great ones. To me: this means that they know how to build cars. They’re not prone to huge differences in manufacturing quality. The guy I knew who brought his to the dealer for needed warranty work was happy and did not have a relapse of problems. Maybe their staff is well trained too.