Compare Audi A4 glow plug replacement 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.

A glow plug heats air and fuel to ensure efficient fuel combustion in diesel engines. Each engine cylinder has a glow plug; even if just one is damaged, it will affect your car's ability to start, and you'll have to book a glow plug replacement.

Glow plugs can last up to 100,000 miles, although carbon build-up decreases their lifespan. This guide discusses what happens when your glow plugs fail.

Glow plug vs spark plug: what's the difference? They perform a similar function, but glow plugs appear in diesel engines, while spark plugs appear in petrol engines.

A glow plug specialist can advise you on the best glow plugs for your vehicle.If you don't have time to take your car to a garage, booking a mobile glow plug removal service is a convenient option.