Compare Infiniti Q50 AdBlue repair quotes from specialist garages

The Q50 - a mid-sized premium executive saloon introduced in 2014 - is a standout model in Infiniti's lineup. It offers luxury, technology and style, resulting in a model that is easy on the eyes and capable of competing with class-leading rivals like the BMW 3 Series and Audi A4. Top speeds range between 120 and 155 mph.

In the US, where Infiniti is much more prominent, the Q50 is multi-award-winning. In 2021, for instance, it received the AutoPacific 'Vehicle Satisfaction Award' in the Standard Luxury Car category. There is a known problem with the brake pedal feeling spongy in some Q50s; this issue can be resolved by replacing the master cylinder.

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.