Compare Audi A4 engine management light repair 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 engine management light (EML) - also referred to as the check engine light - is a small engine symbol that becomes illuminated on your dashboard to indicate a problem, the severity of which is suggested by the colour of the light (red or yellow) and whether it stays on or flashes (usually due to misfires).

Many things can trigger the EML. Some are easy to fix, such as a loose fuel cap, while others are more expensive, such as a faulty catalytic converter. One of the most common reasons is a defective oxygen sensor - if your car is also experiencing a drop in fuel efficiency and black smoke from the exhaust, this is likely why.

Read this guide for more information about why the engine management light comes on and how to fix it.

You don't have to risk driving your car to a garage when the EML is illuminated. Instead, you can book a mobile mechanic, who will carry out an engine management light repair at a convenient location for you.