Least reliable executive cars
The best executive cars aren't only refined, efficient and packed with technology, they're reliable too. We reveal the most and least dependable...
The three least reliable executive cars
3. Audi A4 diesel (2015-present)
Diesel versions of Audi’s executive saloon were marginally less dependable than petrol versions, with 24% of them going wrong, compared with 21% of petrols. The battery was the biggest issue, followed by non-engine electrics, and then the bodywork, brakes and suspension. Although most cars could still be driven, a third took more than a week to fix; 80% of work was done under warranty and only a small percentage of owners paid out £1500 or more.
2. Vauxhall Insignia Grand Sport (2017-present)
A quarter of Insignia owners reported a fault on their car, with the gearbox/clutch causing the most concern. Other problem areas included the bodywork, engine, engine and non-engine electrics and the suspension. Nearly half of the cars couldn’t be driven and were out of action for more than a week. Thankfully, four out of five were fixed for free.
1. Mercedes C-Class (2014-present)
What went wrong? Non-engine electrics 11%, exhaust 6%, fuel system 4%, battery 3%, bodywork 3%, infotainment/sat-nav 3%, brakes 2%, steering 2%, engine 1%, gearbox/clutch 1%, interior trim 1%
A third of C-Classes went wrong, according to owners, who reported a wide range of issues. Faults rendered more than a third of cars undriveable, and one in four was off the road for more than a week. Although 81% of cars were fixed for free, a small percentage of owners paid out more than £1500 in repair bills.
Owner’s view “This is the worst car I have ever bought. Faults haven’t been properly fixed and the service from the dealer has been poor”
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