Engineering Tools

Model-Year Guides

See how one production year changes the reliability picture for a specific model.

Strongest year in this guide
2020 BMW 3 Series | 78/100

Reliability timeline

Compare model years

2018 BMW 3 Series

75

One of the more mature F30 years. Engine choice, cooling health, oil leaks, and ZF service evidence remain more important than trim level.

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2020 BMW 3 Series

78

A convincing modern 3 Series when software history, cooling integrity, and complete servicing are confirmed.

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2018 | F30 late production

BMW 3 Series

75
/100

One of the more mature F30 years. Engine choice, cooling health, oil leaks, and ZF service evidence remain more important than trim level.

2020 | G20 early production

BMW 3 Series

78
/100

A convincing modern 3 Series when software history, cooling integrity, and complete servicing are confirmed.

2019 | W205 facelift

Mercedes-Benz C-Class

73
/100

The facelift W205 is refined and mature, but scan quality and emissions-system verification decide whether it is a calm buy.

2018 | B9

Audi A4

74
/100

A refined B9 year with strong fundamentals. Exact engine code, cooling integrity, oil behavior, and gearbox history still control the risk.

2020 | B9 facelift

Audi A4

77
/100

A mature B9 choice with improved technology. Clean cooling, software, gearbox, and service records make it one of the stronger A4 years covered.

2019 | Golf Mk7.5

Volkswagen Golf

76
/100

A mature Golf year and a strong all-round used buy when the exact drivetrain has been maintained correctly.

2017 | Golf Mk7

Volkswagen Golf

72
/100

A well-understood Golf year with broad support. DSG type, cooling history, exact engine code, and usage pattern remain decisive.

2019 | G05 early production

BMW X5

71
/100

Highly capable, but complexity makes a full-system inspection essential. A good engine cannot compensate for neglected chassis electronics or suspension.

2020 | FY pre-facelift

Audi Q5

72
/100

A polished premium SUV whose risk depends on drivetrain identification, cooling health, gearbox service, and electronic condition.

2020 | Second generation

Volkswagen Tiguan

70
/100

A practical family SUV that can be a sensible buy, provided DSG, cooling, emissions, and 4Motion servicing are verified.