Compare Jaguar Xj diesel engine fault quotes from specialist garages

Introduced as Jaguar's flagship saloon in 1968, the XJ saw many years of success until it went out of production in 2019 to make way for a new electric model. The 2010 update saw the XJ catapult into the 21st century with a modern appearance more fitting for the cutting-edge technology it harbours inside.

Not only has the it been well received by reviewers, but it also has the Royal stamp of approval; Princess Diana famously drove a Jaguar XJ-SC V12 Cabriolet between 1987 and 1991. Fittingly, in 2014, the XJ was crowned 'Luxury Car King' at WhatCar?'s Used Car Awards. Reliability is one of the model's strengths, with just a few known problems regarding electrical faults and clogged DPFs.

Diesel engine repair jobs are often more expensive than petrol, although diesel cars are more reliable and economical over long distances. The main difference between petrol and diesel engines is that the air is compressed before the fuel is injected in diesels, while in petrols, air and fuel are mixed first, then compressed and ignited.

The most common problems experienced by diesel engines include a clogged diesel particulate filter, stuck EGR valve, turbo failure, worn glow plugs, faulty injectors and low compression. Due to the chemicals and processes involved, some jobs, such as DPF cleaning, may require a diesel engine specialist service.

Many of the above faults have similar symptoms, so the best way to find the specific problem with your vehicle is to use diesel engine diagnostics. If you're experiencing issues with your car, we recommend finding a diesel specialist who can give you expert advice.