Cars with modern diesel engines are still the best option for highway travel, they have great mileage, are usually more economical than their petrol counterparts, charge faster than pure electric models and deliver plenty of power and torque.
However, it is clear that there are weak and strong here. Some diesel models are more reliable than their counterparts. In fact, diesels are the most susceptible to poor fuel quality and it is important to choose ones that are reliable. Here are the most reliable diesels on the market, according to a study by whatcar.
1. Renault Kadjar (2015-2022)
Reliability rating 98.6%
Most common faults: electrical outside engine 6%, suspension 6%
2. BMW 3 Series (2012-2019)
Reliability rating 96.5%
Most common faults: 12-volt battery 4%, body 4%, suspension 4%
3. Skoda Kodiaq (2017-2024)
Reliability rating 94.7%
Most common faults: exhaust 6%, electricity outside the engine 6%, air conditioning 2%, brakes 2%, engine 2%, interior trim 2%
4. Volvo XC60 (2017-present)
Reliability rating 92.6%
Most common faults: non-engine electrical 7%, satellite navigation/infotainment 7%, 12-volt battery 4%, body 4%, brakes 4%, engine 4%, steering 4%
5. Mercedes GLB (2019-present)
Reliability rating 92.3%
Most common faults: non-engine electrical 18%, air conditioning 6%, interior trim 6%, satellite navigation/infotainment 6%, bodywork 3%, engine electrical 3%.