Used car guide

2021 BMW 5 Series: petrol or diesel?

Petrol, diesel and hybrid versions go wrong in different ways, so each has its own figures from the MOTs these cars had during 2023–2025. Pick the one you’re looking at: the fuel is on the logbook and in the car’s MOT history.

Diesel versions had too few MOTs for figures of their own, or weren’t sold.

Known faults on every 2021 BMW 5 Series

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

  • Ten recalls

    All engines

    Recalls also covered the brake pedal switch, curtain airbags, the steering gear, a balance shaft bearing, 48-volt battery cables, rear driveshafts and plug-in hybrid batteries.

    At the viewing: Ask a BMW dealer to confirm every recall has been done.

    Source: What Car?: used BMW 5 Series (2017-2023) reliability

  • Electrical and sensor faults

    All engines

    Most petrol faults are electrical, including faulty sensors, persistent warning lights and infotainment faults.

    At the viewing: Test every button and screen, and look for warning lights.

    Source: What Car?: used BMW 5 Series (2017-2023) reliability

Looking at a BMW 5 Series?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the BMW 5 Series compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023449Tyres 12%
20222,690Tyres 22%
202012,610Tyres 22%
201946,328Tyres 23%
201856,183Tyres 24%
201739,758Tyres 24%
2016120Tyres 18%
2015188Tyres 19%
2014591Tyres 24%
201317,632Tyres 30%
201217,731Tyres 30%
20113,218Tyres 31%
20101,982Tyres 30%
20092,128Suspension 33%
20082,430Suspension 37%
20072,675Suspension 43%
20062,292Suspension 43%
20051,153Suspension 46%
2004829Suspension 48%
2003630Suspension 39%
2002523Brakes 39%
2001360Suspension 43%
2000232Suspension 41%
1999174Brakes 44%
1998167Brakes 38%
1997–Too few tests
1996–Too few tests
1995–Too few tests
1994–Too few tests
1993–Too few tests
1992–Too few tests
1991–Too few tests
1990–Too few tests
1989–Too few tests
1988–Too few tests
1987–Too few tests
1986–Too few tests
1985–Too few tests
1984–Too few tests
1983–Too few tests
1982–Too few tests
1981–Too few tests
1980–Too few tests
1979–Too few tests
1978–Too few tests
1975–Too few tests