How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Matt Your Own Question
Matt, Mechanical Engineer
Category: Audi
Satisfied Customers: 22901
Experience:  BEng hons Mech engineering, in auto industry 22 years
Type Your Audi Question Here...
Matt is online now

My Audi A5 Sportback V6 3.0 TDI has started producing a lot

Customer Question

My Audi A5 Sportback V6 3.0 TDI has started producing a lot of exhaust fumes when accelerating away from a cold start. The visible fumes do disappear after a couple of mnutes.The car has done about 49,000 miles. Any thoughts?
Submitted: 4 years ago.
Category: Audi
Expert:  Shantal-Mod replied 4 years ago.


I've been working hard to find a Professional to assist you with your question, but sometimes finding the right Professional can take a little longer than expected.

I wonder whether you're ok with continuing to wait for an answer. If you are, please let me know and I will continue my search. If not, feel free to let me know and I will cancel this question for you.

Thank you,


Customer: replied 4 years ago.

Please continue the search. The car is losing coolant at a high rate. The exhaust is pushing out white smoke/steam as opposed to blue smoke.


Expert:  Matt replied 4 years ago.

I'm afraid this doesn't sound good , the thing to try is a head gasket / block test kit as these take a coolant sample and analyse it for any signs of combustion gas - if present this would indicate the head gasket is on its way out and

and as temporary fix I'd suggest trying some of this as it can last thousands of miles sometimes