Buyer Warning All M4 years

Bmw M4 Years to AvoidThe weakest years — and the one you should buy instead

After reviewing every Bmw M4 we've analyzed (1 years), these are the 1 weakest. Each one has either an absolute low AutoScore, chronic repair issues, or unusually high ownership costs relative to other M4 years.

Proceed with caution

2015 Bmw M4

68
out of 100
MODERATE RISK

The 2015 BMW M4 is a performance powerhouse that demands respect for its maintenance requirements. While exhilarating to drive, its complex engineering and high-performance components mean that reliability hinges heavily on diligent, proactive upkeep. Approach ownership with a clear understanding of potential high-cost repairs, especially for early production models, to truly enjoy this incredible machine.

Why this year scores low

1
Engine (Crank Hub)critical30,000-80,000 mi

Early production S55 engines (primarily 2015-early 2016) can experience a 'crank hub slip' where the friction washer connecting the crank to the timing gears loses torque, causing the timing to jump. This can lead to catastrophic engine damage.

2
M Adaptive Suspension Componentsmajor60,000-100,000 mi

The complex adaptive suspension system can suffer from failing electronic damping control (EDC) modules, worn control arm bushings, or leaking adaptive shocks, leading to a degraded ride and handling.

3
Ignition Systemmoderate40,000-70,000 mi

Due to the high boost and demands of the S55 engine, coil packs and spark plugs are wear items that can fail prematurely if not replaced on schedule, leading to misfires and reduced performance.

Annual Maintenance

$1,000-1,500

Grade

C+

Buy this instead

2015 Bmw M4

Highest-scoring M4 in our data (68/100). An adrenaline-fueled Bavarian missile, but one that demands a thick wallet and a proactive approach to maintenance to avoid significant financial pain.

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