BMW M2: common faults & what to check

Which BMW M2 are you looking at?

3 generation variants documented. Pick the shape you recognise: the faults, the servicing and the timeline below all narrow to it. Free, no account needed.

Petrol

3 variants documented

2016–2021F872016–2021F873.0 turbo petrol (N55)PetrolDocumented issues4 knownSee faults & what to checkPhoto: Steinfeld-feld via Wikimedia Commons, CC BY-SA 4.0.

2016–2021F872016–2021F873.0 twin-turbo petrol (S55 Competition/CS)PetrolDocumented issues4 knownSee faults & what to checkPhoto: Steinfeld-feld via Wikimedia Commons, CC BY-SA 4.0.

2023–nowG872023–nowG873.0 twin-turbo petrol (S58)PetrolDocumented issues2 knownSee faults & what to checkPhoto: Ethan Llamas via Wikimedia Commons, CC BY-SA 4.0.

Now narrow it to the engine

A 1.8 and a 2.4 of the same car do not fail the same way, so the faults below narrow to the engine as well as the year. Free, no account needed.

Start your free check on this BMW M2

No plate needed. You get the risk score, the buyer's checklist and the guided inspection for the exact car you picked above — not the whole nameplate.

The checks worth doing on a BMW M2 before you hand over any money. Every documented fault is listed below, each with its own page.

• Serious issue

  Start with the cold checks, before the engine is run.

  See why

  S55 cooling system on the Competition — water pump and thermostat

  The M2 Competition swapped the earlier car's N55 for the S55 twin-turbo used in the M3 and M4, and it inherited that engine's cooling weaknesses along with its performance. The mechanical water pump wears under the thermal load, and thermostat failure stops coolant circulating properly, at which point overheating at full load can develop within minutes rather than gradually. The short timescale is the point: on this engine there may be very little between the first warning and real damage, and it tends to show itself during exactly the kind of driving an M2 is bought for. Worth checking carefully on any car that has seen track use, and worth paying a little more for one with a documented cooling service.

  What you would notice

  • Temperature climbing quickly under sustained load rather than settling
  • Coolant level dropping, or coolant warning messages
  • Engine slow to warm up, or the heater blowing cool
  • Coolant smell, steam, or dried residue around the front of the engine
  • Reduced-power mode after a hard drive

  Typically $1,200–$4,500 to put right.

• Serious issue

  This is a history and honesty check more than a physical one.

  See why

  S55 crank hub slip on the M2 Competition (3.0 twin-turbo)

  The M2 Competition's S55 twin-turbo six holds its crankshaft timing gear on by friction rather than a key, and under sustained high load that hub can rotate on the crank. When it does the engine loses its timing reference and the valves and pistons meet, which ends the engine. Two things matter for a buyer. First, this is overwhelmingly a MODIFIED-car failure — the reported cases cluster on tuned cars running raised boost and repeated launch control, and even among those the rate is estimated below 1%. A standard, unmapped car is at low risk. Second, there is no warning: nothing rattles or logs a code beforehand. That is why a pinned or keyed crank hub is a common preventative fit, and why evidence of tuning matters far more on this car than on an ordinary used BMW. The base M2 (2016-2018) uses the N55 single-turbo and is not affected.

  What you would notice

  • No warning at all before failure — this is the defining feature
  • Engine warning light with camshaft/crankshaft correlation codes if it slips partially
  • Rough running or a no-start after a hard launch
  • Aftermarket exhaust, intake, intercooler or a piggyback box as circumstantial evidence of tuning

  Typically $2,500–$25,000 to put right.

• Costly issue

  Be there for a cold start and sit with the engine idling, because that is when a carboned engine shows itself.

  See why

  S58 intake valve carbon build-up on the G87

  The current M2 uses the same S58 twin-turbo six as the M3 and M4, and inherits its one predictable maintenance fault. Direct injection sprays fuel into the cylinder rather than past the intake valves, so nothing washes them clean, and oil vapour from the crankcase ventilation deposits carbon on the valve backs instead. It becomes noticeable around 60,000 to 80,000 km as a rough idle, a slight misfire and a flat patch low in the rev range. Context matters here: the S58 is regarded as substantially more robust than the S55 it replaced and carries no equivalent rod bearing concern, so this is a service item to budget for rather than a warning sign about the engine. It is labour-heavy because the intake has to come off, and it recurs.

  What you would notice

  • Rough or uneven idle, worst from cold
  • Slight misfire, or a stumble when accelerating gently
  • Flat patch in the power delivery low in the rev range
  • Engine warning light, sometimes with misfire codes
  • Fuel economy quietly worse than it used to be

  Typically $800–$2,800 to put right.

• Costly issue

  The most reliable test for a slipping clutch takes one attempt on a quiet road.

  See why

  Clutch wear on manual cars from launch control and track use

  Clutch wear on the manual S58 cars has been reported at relatively low mileages, and the causes named are specific rather than general: repeated launch control starts, aggressive use, and track days without clutch protection. That is worth separating from ordinary wear, because it means the clutch's remaining life on a given car depends almost entirely on how the previous owner used it rather than on the odometer — and a low-kilometre car with a hard life can be closer to a new clutch than a higher-kilometre one that was driven normally. It also means the questions that find it are about history rather than mechanics. On a car of this value the clutch is a substantial job, so it is worth establishing before you agree a price rather than after the first hard start.

  What you would notice

  • Clutch slipping — engine revs rising without matching acceleration
  • Bite point unusually high, or right at the top of the pedal travel
  • Burning smell after a hard start or a hill
  • Judder as the clutch takes up
  • Difficulty selecting gears, or the clutch feeling heavy

  Typically $2,500–$7,000 to put right.

BMW M2 service schedule

What falls due, and at what distance, for each generation of the BMW M2. These are the model’s intervals — the car’s own service book is the only thing that can tell you what has actually been done to it.

Other BMW models