Compare Audi A4 exhaust fitting quotes from specialist garages

Since it was founded in 1909, Audi has been at the forefront of automotive innovation. It was the first to conduct crash tests, one of the first to use a dual-clutch gearbox, and in 1921, became the first German manufacturer to make a production car, the Audi Type K, with left-hand drive.

Impressively, Audi is also the most successful carmaker in the history of the World Car Awards, winning 11 titles since 2005 and five World Performance Car Awards as of 2022. Find out whether Audis are expensive to repair in this guide or take a look at how their maintenance costs compare with SEAT and Skoda.

The exhaust system is essential in guiding fumes away from the engine and passengers. It consists of a manifold, flex pipe, catalytic converter and an oxygen or lambda sensor. Unsurprisingly, the biggest problem with car exhausts is that they sometimes develop a leak.

Common warning signs your car's exhaust needs repairing or replacing include: popping sounds, leaking water, rust, unusual smoke, and sounding louder than usual. Anything out of the ordinary may signal a problem, and an exhaust specialist will be able to tell you exactly how to fix it.

It's important to take your car to an exhaust centre as soon as you notice the first signs of trouble; occasionally, exhaust leaks can be dangerous.

Depending on the extent of the leak, a mechanic may be able to carry out an exhaust repair by welding the affected area. If this isn't possible, you'll have to arrange an exhaust replacement.