E46 M3 3.2 Straight-Six Engines
from £2,500 to £7,500
Rebuilt units from £3,200 · Common codes: S54B32, S54B30
BMW ENGINE MARKETPLACE
BMW M3 S54/S65/S55/S58 Performance Engine Replacement - Rebuilt & Options
Get quotes from UK BMW M3 performance engine specialists. Compare rebuilt & reconditioned engines for M3 & M3 Competition - S54/S65/S55/S58 covered. Find UK performance engine specialists.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
E9x M3 4.0 V8 Engines
from £3,500 to £9,500
Rebuilt units from £4,500 · Common codes: S65B40, S65B44
F80 & G80 M3 Twin-Turbo Engines
from £4,500 to £14,000
Rebuilt units from £5,500 · Common codes: S55B30, S58B30
Instant engine replacement quote - 100% free, no obligation
Engine replacement near me - UK-wide specialist network
Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best BMW M3 Replacement Engineto Finding the Best BMW M3 Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
Live UK Engine Market Data
What Are UK Drivers Paying for BMW M3 Engine Replacement
The table below shows typical UK rebuilt engine replacement costs across different BMW M3 variants, covering known failure causes, engine codes, fuel types, and engine sizes.
Average Market Prices
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by BMW M3 Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used BMW M3 engines through EngineMarket.
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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
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Variants We Cover
BMW M3 Engine ReplacementAll Variants Covered
M3 E30
S14B23 2.3L Petrol
Rebuilt Engines: £6,000-£12,000
M3 E36
S50B30 3.0L Petrol
Rebuilt Engines: £3,000-£6,500
M3 E36 Evolution
S50B32 3.2L Petrol
Rebuilt Engines: £3,500-£7,500
M3 E46
S54B32 3.2L Petrol
Rebuilt Engines: £3,500-£8,000
M3 E92 Coupe
S65B40 4.0L Petrol
Rebuilt Engines: £5,500-£11,000
M3 E93 Convertible
S65B40 4.0L Petrol
Rebuilt Engines: £5,500-£11,000
M3 F80
S55B30 3.0L Petrol
Rebuilt Engines: £5,000-£10,000
M3 F80 Competition
S55B30 3.0L Petrol
Rebuilt Engines: £5,500-£11,000
M3 G80
S58B30 3.0L Petrol
Rebuilt Engines: £7,000-£14,000
M3 G80 Competition
S58B30 3.0L Petrol
Rebuilt Engines: £7,500-£16,000
M3 G80 Competition xDrive
S58B30 3.0L Petrol
Rebuilt Engines: £8,000-£17,000
Not sure which variant your BMW M3 is- Enter your registration number above - we’ll identify the exact sub-model, engine code and compatible replacement options instantly.
M3
Engine Codes
BMW M3 Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the BMW M3 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.
Petrol Engines
Extracted from detailed petrol and performance engine families across BMW M3 variants.
S14B23 - 2.3L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
E30 M3E30 M3 Evolution
Avg. rebuilt price
£6,000 - £12,000
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 2.3L
- Power output
- 195-215 hp
- Years fitted
- 1986-1991
Common failures
- ●Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
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 M3 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
M3
Common Problems
BMW M3 Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The BMW M3’s performance heritage comes with well-documented engine vulnerabilities that vary dramatically by generation. The S54 (E46) suffers VANOS and rod bearing failures, the S65 V8 (E90/E92/E93) is infamous for rod bearing and throttle actuator issues, and the S55 (F80) has a notorious crank hub weakness. Every rebuilt engine supplied through...
BMW M3 S65 V8 Rod Bearing Failure - The E9x M3’s Achilles Heel
BMW M3 S65 V8 Rod Bearing Failure
Most affected vehicles
BMW M3 E90 SaloonE92 Coupé
BMW M3 E90 Saloon, E92 Coupé, E93 Convertible (2007-2013, S65B40 & S65B44)
Failure mileage range
50,000 - 90,000 miles
Typical failure window
Root cause
Insufficient bearing clearance from the factory leads to oil film breakdown at high rpm. The result is metal-to-metal contact, bearing material shedding into the oil, and eventual seizure or rod failure.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Preventative - Bearing Replacement (before knocking starts) | £2,800 - £4,500 | £1,800 - £2,800 | Replacement of rod bearings with uprated aftermarket units (e.g., ACL or King), new bolts, oil flush | Permanent fix when done preventatively. 80k+ mile lifespan on new bearings |
| Intermediate - Crank Polish & Bearings (early knock) | £5,000 - £7,500 | £3,500 - £5,000 | Crank inspection and polishing, uprated bearing replacement, oil system flush | Viable only if crank surface undamaged. Adds 40k-60k miles |
| Full Replacement - Rebuilt / Reconditioned S65 | £12,000 - £18,000 | £6,500 - £11,000 | Complete rebuilt engine with uprated bearings, new timing components, bench tested, 12-month warranty | 100k+ mile lifespan. Only permanent solution if crank or block damaged |
Our recommendation
If your S65 is silent and below 70k miles, invest in preventative bearing replacement through a specialist. This costs £1,800-£2,800 and saves a £6,500+ replacement. If you already hear knocking, stop driving immediately. A full rebuild or replacement is usually required once the crank is scored. On a car worth £12,000-£25,000, spending £6,500-£11,000 on a rebuilt S65 with uprated bearings makes financial sense compared to scrapping the vehicle.
Compare rebuilt S65 BMW M3 engine prices for your E9x M3Replacement Engine Options
BMW M3 Engine TypesOptions, Costs & What to Expect
Every engine type for your BMW M3 is available through our UK network, with typical price ranges varying by variant, engine code (S54, S65, S55, S58) and budget.
BMW M3 Reconditioned Engines (Recon)£3,500 - £8,500((supply only))
BMW M3 Rebuilt Engines£4,500 - £11,000((supply only))
BMW M3 Used Engines£2,000 - £5,500((supply only))
BMW M3 Remanufactured Engines£5,000 - £13,000((supply only))
BMW M3 Refurbished Engines£2,800 - £6,500((supply only))
Compare BMW M3 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 M3 within hours.
Engine Sizes
BMW M3 Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the BMW M3 is listed below, with compatible engine codes, production years, power outputs, and common failure notes - organised by fuel type.
The original M3 engine, developed from BMW Motorsport’s Formula 1-derived M12/13 unit. Produced specifically for the E30 M3 to meet Group A touring car homologation requirements, this four-cylinder engine defined the M3’s high-revving character and remains a favourite among classic collectors.
⚙
Engine Code(s)
S14B23, S14B25
▣
Compatible Models (UK)
E30 M3 (1986-1991), E30 M3 Evolution, E30 M3 Sport Evolution
ϟ
Power output
Verified by registration
△
Common Failure Points
Throttle linkage wear, rocker arm failure at high rpm, cooling system leaks
Production Years: Check by registration
Compare BMW M3 2.3L petrol engine pricesBMW M3 Engines Fuel Type
BMW M3 Engines by Fuel Type
Choose your BMW M3 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the four-cylinder E30 to the latest twin-turbo G80.
BMW M3 Petrol Engines
PetrolEvery BMW M3 ever sold in the UK has been petrol-powered, spanning four-cylinder homologation units, legendary straight-sixes, a unique V8, and modern twin-turbo sixes.
Common BMW M3 Petrol Engine Families
- •S14 - Four-cylinder (E30 M3), high-revving Group A homologation engine
- •S50 - Straight-six (E36 M3), single and dual VANOS, 286-321 hp
- •S54 - Straight-six (E46 M3), 8,000 rpm redline, individual throttle bodies
Found In
- •E30 M3 (1986-1991) - S14B23, S14B25
- •E36 M3 (1992-1999) - S50B30, S50B32
- •E46 M3 (2000-2006) - S54B32
Known For
- •High-revving naturally aspirated character across all pre-F80 generations
- •S65 rod bearing failure - the most searched M3 engine problem in the UK
- •S55 crank hub slip - catastrophic timing loss on early F80s
Typical Petrol Models
- •E30 M3, E36 M3 Evolution, E46 M3 CSL, E92 M3 V8, F80 M3 Competition, G80 M3 xDrive
BMW M3 Petrol Engines
PetrolEvery BMW M3 ever sold in the UK has been petrol-powered, spanning four-cylinder homologation units, legendary straight-sixes, a unique V8, and modern twin-turbo sixes.
Common BMW M3 Petrol Engine Families
- •S14 - Four-cylinder (E30 M3), high-revving Group A homologation engine
- •S50 - Straight-six (E36 M3), single and dual VANOS, 286-321 hp
- •S54 - Straight-six (E46 M3), 8,000 rpm redline, individual throttle bodies
Found In
- •E30 M3 (1986-1991) - S14B23, S14B25
- •E36 M3 (1992-1999) - S50B30, S50B32
- •E46 M3 (2000-2006) - S54B32
Known For
- •High-revving naturally aspirated character across all pre-F80 generations
- •S65 rod bearing failure - the most searched M3 engine problem in the UK
- •S55 crank hub slip - catastrophic timing loss on early F80s
Typical Petrol Models
- •E30 M3, E36 M3 Evolution, E46 M3 CSL, E92 M3 V8, F80 M3 Competition, G80 M3 xDrive
Not sure which fuel type your BMW M3 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 M3 specialists.
Engine YearsGet quotes for 1986-1991 BMW M3 E30 replacement engines →
BMW M3 Engines by YearWhat Was Fitted & WhenBMW M3 Engines by Year - What Was Fitted & When
This timeline covers every UK-market BMW M3 generation from 1986 to the present, organised so owners can quickly identify their engine code, variant, and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓First M3 generation, built exclusively as a two-door coupe
- ✓S14 engine derived from BMW M1's M88 straight-six (two cylinders removed)
- ✓Evolved from 2.3L to 2.5L in final Sport Evolution models
- ✓Over 17,900 units produced - well above homologation requirements
▣Main Engines
S14B23- 2.3L Petrol (E30 M3, E30 M3 Evolution)
S14B25- 2.5L Petrol (E30 M3 Sport Evolution)
▰Popular Models
- •BMW M3 E30 (1986-1991)
- •BMW M3 Evolution
- •BMW M3 Sport Evolution
🔧Known For
- ✓High-revving 10.5:1 compression four-cylinder character
- ✓Homologation special with DTM racing pedigree
- ✓Rocker arm failures at sustained high rpm (track use)
- ✓Cooling system leaks common on higher-mileage units
Engine Codes Covered:
S14B23S14B25Not sure which year your BMW M3 was built- Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12-month warranty from UK BMW M3 specialists.
FAQ