Compare Mercedes AdBlue repair quotes from specialist garages

In 1886, Karl Benz - the founder of Mercedes Benz - introduced what is often considered the first petrol-powered car to the world. The Benz Patent Motor Car was born, and with it began a legacy that continues today.

Style, luxury and innovation are the driving forces behind Mercedes. Not only was it one of the first car manufacturers to put brakes and suspension on all four wheels, but it was also the first to introduce safety crumple zones.

Cars by Mercedes have appeared on the big screen numerous times, from the S-Class used by Jason Statham in The Transporter to escape a gunfight to the 1969 280 SE Convertible driven by Hugh Grant in Bridget Jones's Diary.

See how Mercedes' maintenance costs compare with BMW's and Audi's here.

AdBlue is a diesel exhaust fluid sprayed in small amounts onto exhaust gas, turning the NOx into less harmful nitrogen and water. If your car runs out of AdBlue while driving, its performance will be significantly reduced; when you stop the engine, it won't start again until you refill the tank.

Pump failure is one of the most common issues associated with the AdBlue system. Fortunately, an AdBlue pump repair or replacement isn't usually costly. Other problems include contamination and failure of the nozzle, NOx sensor and the AdBlue control unit.

You'll need to book an AdBlue system repair if your car develops any of these faults. Most of the time, the mechanic will run an AdBlue fault diagnostic first. Booking a car AdBlue service, which involves a top-up of fluid and a general check of the system's components, can help prevent the above issues.