Best and worst used luxury cars for reliabilityWe reveal the most reliable used luxury car

30 January 2014

Lecus GS

Luxury cars are some of the most expensive cars on our roads, so you’d hope that reliability would match up to the steep price tags. However, while luxury cars proved more reliable than some other types of car, average repair bills even for the more reliable models, are fairly high.

Luxury cars are expensive to buy and, judging by responses from owners in the latest Which? Car Survey, they are similarly expensive to live with. Annual repair bills average at nearly £100, even for the most reliable model. And, even the best luxury car reliability scores are slightly lower than other classes of car. 

Luxury cars are often packed to the gills with complex technology, and, while this can make them costly to keep on the road, breakdown rates are low.

Our car survey runs every year to discover from owners which cars will cost peanuts to run and which are likely to leave you facing huge repair bills. Tell us how reliable your car is by taking part in the 2014 Which? Car Survey.

Join Which? for £1 and gain instant access to our full survey results.

Most reliable used luxury car

Living up to the Lexus brand's spotless reputation for reliability, the GS (2005-2012) topped the reliability table for luxury cars. Though a reliability score of 86% isn’t as high as that of leading models in other classes, the GS only suffered minor problems - tyre pressure sensors top the fault list.

A breakdown rate of 6% isn’t as low as it could be, though average annual repair rates of £85 are at the lower end of the scale for luxury cars. Common faults affected engines, braking and fuel systems, though most of these were minor.

Find out the highest-rated used luxury cars for reliability

Jaguar S Type 04 2

Least reliable used luxury car

Floundering at the other end of the table is the Jaguar S-Type (1999-2007). This model’s styling may hark back to a long gone era and so does its reliability, with average annual repair bills close to £200. With a reliability score of 76%, the S-Type is 3% adrift of the next least reliable luxury car.

Faults plagued the engine, suspension components and air conditioning system. Other problems a wide range of areas from the rainwater seals to the automatic transmission. Though a reliability score of 76% isn’t the worst of all car classes, annual repair bills of £197 are a concern.

Find out the lowest-rated used luxury cars for reliability

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