Compare Porsche diesel engine fault quotes from specialist garages

Porsche is known for its high-performance luxury sports vehicles - the best-selling model being the Cayenne. The company's founder, Ferdinand Porsche, created the world's first hybrid vehicle in 1899. It was called the Lohner-Porsche and was driven by electricity with a fuel-powered generator to charge the batteries, though it never made it into production.

Porsche continues to break new ground to this day; in 2017, the Cayenne S Diesel model earned the Guinness World Record for towing the heaviest vehicle, pulling an enormous Airbus A380 aeroplane weighing 285 tonnes.

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.