2015–2020 BMW M4
Browse our directory of 2015–2020 BMW M4 vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2015–2020 BMW M4 has 4 known issues. 1 of these are classified as serious faults that could be expensive to repair. 3 are moderate concerns worth inspecting before purchase.
Crank Hub Slip / Engine Timing Issues
SeriousThe same S55 crank-hub concern that affects F80 M3s also hangs over the F82/F83 M4, especially on tuned cars making repeated hard launches.
Symptoms: Sudden misfire after full boost, Loss of power with timing-related fault codes
Est. repair cost: £2,000–£8,000
Adaptive Damper / Top Mount Wear
ModerateStiff suspension, large wheels, and poor UK roads can leave M4s with worn dampers, noisy top mounts, or poor wheel alignment that chews through tyres.
Symptoms: Front-end knock over sharp ridges, Uneven tyre wear or fidgety motorway tracking
Est. repair cost: £300–£1,800
Convertible Roof Water Ingress / Module Risk
ModerateThe folding-roof M4 Convertible can suffer from blocked drains, wet boot electronics, or roof-cycle faults if the mechanism has been neglected.
Symptoms: Musty smell in the boot, Roof warning lights or hesitant operation
Est. repair cost: £150–£2,000
Coolant / Charge-Cooling Leaks
ModerateTurbocharged M4s can lose coolant from expansion tanks, front coolers, or hoses. It is a common nuisance fault on hard-driven examples and should not be ignored.
Symptoms: Sweet coolant smell, Low coolant warnings after a hard drive
Est. repair cost: £120–£900
Buying Tips for the 2015–2020 BMW M4
- ✓Assume any M4 may have been mapped unless you can prove otherwise
- ✓Inspect carbon-ceramic brakes very carefully because replacement costs are enormous
- ✓On convertibles, make sure the roof cycle is smooth and the cabin is dry
- ✓Check rear tyres, alignment, and differential behaviour before you trust the car
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