BMW M4
The M4 is the coupe and convertible sister car to the modern M3, introduced when BMW split its naming conventions. Positioned as an aggressive, highly tuneable sports coupe, it offers devastating straight-line speed and sharp track-ready handling. Many UK cars have seen aftermarket modifications, track days, and aggressive driving, meaning buyers must be wary of hidden damage, crash repairs, and big consumable bills (brakes and tyres). It suits buyers who want the ultimate BMW coupe performance and aren't afraid of high maintenance costs.
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Common Faults & Reliability
These are the most common documented problems for the BMW M4, sorted by their typical impact and frequency.
Crank Hub Slip / Engine Timing Issues
high severityThe same S55 crank-hub concern that affects F80 M3s also hangs over the F82/F83 M4, especially on tuned cars making repeated hard launches.
Adaptive Damper / Top Mount Wear
medium severityStiff suspension, large wheels, and poor UK roads can leave M4s with worn dampers, noisy top mounts, or poor wheel alignment that chews through tyres.
Convertible Roof Water Ingress / Module Risk
medium severityThe folding-roof M4 Convertible can suffer from blocked drains, wet boot electronics, or roof-cycle faults if the mechanism has been neglected.
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Example BMW M4 Vehicles
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