The BMW 5 Series is the definitive executive saloon and a hugely common used car in the UK — particularly as an ex-fleet or company car. The E60, F10 and G30 generations are all well-represented. High mileages are typical and maintenance history is essential.
Quick Facts — BMW 5 Series
Common Engines
520i, 523i, 525i, 528i, 530i, 540i, M5, 518d, 520d, 525d, 530d, 535d, 540d
6 Most Common BMW 5 Series Problems
These are the faults most frequently seen on the BMW 5 Series by UK garages — ranked by how commonly they occur and what they cost to fix.
The N47 engine in 518d and 520d models from 2007–2015 carries the same rear-of-engine timing chain failure risk as in other BMWs. A startup rattle on a high-mileage 520d needs immediate investigation.
💷 Typical repair cost: £2,000–£5,000+
The N57 diesel used in 530d and 535d models can suffer injector failure causing misfires, hard starting and rough running. Injectors are expensive to replace.
💷 Typical repair cost: £300–£900 per injector
High-mileage diesel 5 Series develop EGR carbon buildup and DPF blockages. Fleet use on motorways helps but urban use accelerates both issues.
💷 Typical repair cost: £200–£1,200
5 Series models with air suspension develop compressor and air bag failures. Uneven ride height and a warning light are the symptoms. Common on higher-mileage examples.
💷 Typical repair cost: £400–£1,500
The F10 5 Series can develop electric power steering faults — vibration through the wheel, pulling and occasional warning lights.
💷 Typical repair cost: £300–£900
Seat belt pretensioner and isofix sensor faults are common on high-mileage ex-fleet 5 Series — usually triggering airbag or seatbelt warning lights.
💷 Typical repair cost: £100–£400
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BMW 5 Series — MOT Tips
N47 timing chain check is essential on 2007–2015 diesel models. DPF warning light is an automatic fail. Air suspension faults cause uneven ride height which can be MOT-relevant. Check all airbag and seat belt warning lights.
Engine management light on before your MOT? It's an automatic fail. Run a
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BMW 5 Series Tyres
Most BMW 5 Series models run 225/55 R17 or 245/45 R18 or 245/40 R19 depending on trim level and year. Always check the placard inside the driver's door for the exact size for your vehicle.
Summary
The 5 Series is an excellent executive car and brilliant value used. The N47 timing chain is the critical check on 2007–2015 diesel models. Always buy with a full service history and budget for premium parts costs.
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