M2 Competition / CS Engines
from £4,500 to £8,500
Rebuilt units from £4,500 · Common codes: S55B30A, S55B30T0
Get quotes from UK BMW M2 performance engine specialists. Compare rebuilt & reconditioned engines for M2, M2 Competition & M2 CS - N55/S55 covered. Find UK performance engine specialists.
M2 Competition / CS Engines
from £4,500 to £8,500
Rebuilt units from £4,500 · Common codes: S55B30A, S55B30T0
M2 (2016-2018) Engines
from £3,200 to £6,800
Rebuilt units from £3,200 · Common codes: N55B30T0, N55B30A
M2 (G87 2023+) Engines
from £5,500 to £10,500
Rebuilt units from £5,500 · Common codes: S58B30A, S58B30M0

Most replacements completed within 3-5 days.
The table below shows typical UK rebuilt engine costs across BMW M2 variants, covering documented failure causes, chassis generations, engine codes, and fuel types based on current market data.


Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used BMW M2 engines through EngineMarket.
4.8
★★★★★
out of 5
1,081 verified reviews
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”




Not sure which variant your BMW M2 is- Enter your registration number above - we’ll identify the exact sub-model, engine code and compatible replacement options instantly.

Every engine code fitted to the BMW M2 across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Extracted from detailed petrol and performance engine families across BMW M2 variants.

N55B30T0 - 3.0 Litre Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
Avg. rebuilt price
£3,200 - £6,800
Supply only
Technical specifications
Common failures
Not sure which engine code?
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK BMW M2 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.

The F87 and G87 M2 are defined by their turbocharged straight-six engines - the N55, S55, and S58. While fundamentally robust, each has well-documented failure points that can lead to significant repair bills or full replacement. Below, we break down the most common BMW M2 engine problems by engine family, with real UK costs for dealer vs specialist...
BMW M2 S55 Crank Hub Failure
Most affected vehicles
BMW M2 Competition, M2 CS (F87, 2018-2021, S55B30A & S55B30T0)
Failure mileage range
20,000 - 60,000 miles (can occur on stock or tuned engines)
Typical failure window
Root cause
The crank hub is attached to the crankshaft via friction alone, not a keyway. Sudden load changes - aggressive downshifts or high-rpm launches - can cause the hub to spin on the crank, jumping timing and allowing valves to contact pistons.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Preventative Crank Hub Fix - Capture hub + bolt upgrade | £2,500 - £3,500 | £1,800 - £2,500 | Fit aftermarket pinned or captured hub design without removing engine | Permanent prevention if done proactively. Best for tuned or track-used cars |
| Intermediate - Timing Correction & Hub Replacement - Post-spin (no piston contact) | £5,000 - £7,000 | £3,500 - £5,000 | Remove oil pan, timing components, replace hub, re-time engine | Successful only if spin detected immediately and no valve contact occurred |
| Full Replacement - Rebuilt S55 Engine - With upgraded hub | £12,000 - £16,000 | £7,500 - £12,000 | Supply & fit fully rebuilt S55 with captured/pinned hub, bench tested, 12-month warranty | Permanent solution. Required if valves bent or cylinder damage present |
Our recommendation
If your M2 Competition or CS is still running fine, proactively fitting a crank hub capture kit is excellent value at around £2,000 from a specialist. If the hub has already spun, have a borescope inspection performed immediately. If valves hit pistons, skip the intermediate repair - a rebuilt engine with an upgraded hub is the only reliable long-term fix. On an M2 worth £25,000-£45,000, £7,500-£10,000 for a properly rebuilt S55 makes financial sense.
Compare rebuilt S55B30A engine prices for your BMW M2 Competition
Every engine type listed below is available through our UK network, with typical price ranges varying by M2 variant, engine code and your specific budget.
Compare BMW M2 engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific BMW M2 within hours.

Every displacement fitted to the BMW M2 across all generations is listed below, with compatible engine codes, production years, power outputs and common failure notes.
The BMW M2 has always been powered exclusively by a 3.0-litre turbocharged inline-six petrol engine, spanning the N55, S55 and S58 families. The original F87-generation M2 (2016-2018) used the N55B30T0, while the M2 Competition (2018-2021) and M2 CS (2020-2021) received the high-output S55 derived from the M3/M4. The current G87-generation M2 (2023-present) is powered by the S58, which features a closed-deck block and resolves the crank hub vulnerability of its predecessor.
Engine Code(s)
N55B30T0, S55B30A, S55B30T0, S58B30T0, S58B30A
Compatible Models (UK)
M2 (F87, 2016-2018); M2 Competition (F87, 2018-2021); M2 CS (F87, 2020-2021); M2 (G87, 2023-present); M2 CS
Power output
Verified by registration
Common Failure Points
S55 crank hub spin (Competition/CS), N55 charge pipe cracking, oil consumption across all generations, VANOS solenoid wear
Production Years: G87, 2025-present
Compare BMW M2 3.0L petrol engine prices
Choose your BMW M2 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the early F87 N55 to the latest G87 S58.
Every BMW M2 sold in the UK has been powered by a 3.0-litre turbocharged petrol straight-six, spanning three generations of BMW M engines: N55, S55 and S58.
Common BMW M2 Petrol Engine Families
Found In
Known For
Typical Petrol Models
Every BMW M2 sold in the UK has been powered by a 3.0-litre turbocharged petrol straight-six, spanning three generations of BMW M engines: N55, S55 and S58.
Common BMW M2 Petrol Engine Families
Found In
Known For
Typical Petrol Models
Not sure which fuel type your BMW M2 has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK BMW M2 specialists.

This section covers every major engine change across the BMW M2's production timeline, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
⚙Key Changes
▣Main Engines
N55B30T0- 3.0L Petrol (365-370 hp)
▰Popular Models
🔧Known For
Engine Codes Covered:
N55B30T0