British insurance agency Warranty Direct lists the most reliable engine manufacturers. Warranty Direct has compiled a list of how often insurance companies will step in and cover the repair costs for various engine damage. In Volvo’s case the figure is 1 in 111, which corresponds to an error rate of 0.9. Best of all manufacturers is Honda, with the rate 1 in 344, followed Toyota & Mercedes-Benz.
Worst of all automakers are MG Rover, followed by Audi. The likelihood of engine damage for Audi owners are 1 in 27, which corresponds to 3.71 percent. BMW which is known for its powerful engines stands seventh.
Reliability – best engine manufacturers
Car brand, percent errors (%) Risk of failure (1 of xx)
1) Honda 0.29% 1 of 344
2) Toyota 0.58% 1 of 171
3) Mercedes-Benz 0.84% 1 of 119
4) Volvo 0.90% 1 of 111
5) Jaguar 0.98% 1 of 103
6) Lexus 0.99% 1 of 101
7) Fiat 1.17% 1 of 85
8) Ford 1.25% 1 of 80
9) 1.32% Nissan 1 to 76
10) Land Rover 1.38% 1 of 72
Reliability – worst engine manufacturers:
Car brand, percent errors (%) Risk of failure (1 of xx)
1) MG Rover 7.88% 1 of 13
2) Audi 3.71% 1 of 27
3) Mini 2.51% 1 of 40
4) Saab 2.49% 1 of 40
5) Vauxhall (Opel) 2.46% 1 of 41
6) Peugeot 2.26% 1 of 44
7) BMW 2.20% 1 of 45
8) Renault 2.13% 1 of 46
9) Volkswagen 1.91% 1 of 52
10) Mitsubishi 1.70% 1 of 59
