BMW 4 Series M4 Competition Engine Replacement - From £2,000

Compare BMW 4 Series M4 Competition replacement engine prices from trusted UK suppliers. Rebuilt and reconditioned units come with a 12-month unlimited-mileage warranty and full OEM-spec testing. Save up to 60% versus a main dealer quote.

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• Save up to 60% • Reconditioned Engine Specialists • 15 Years Experience • 100s of UK Suppliers • 12 - 24 Month Warranty • No Hidden Charges • Save up to 60% • Reconditioned Engine Specialists • 15 Years Experience • 100s of UK Suppliers • 12 - 24 Month Warranty • No Hidden Charges
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BMW 4 Series M4 Competition Specialists

Expert Solutions for Every 4 Series M4 Competition - M4 to M4 Competition

Need a reliable replacement engine for your BMW 4 Series M4?
Engine Finders specializes in 4 Series M4 Competition engines with solutions for common S55 twin-turbo failures.

  • ✔ 4 Series M4-Specific Engine Types - Addressing turbocharger seal degradation in S55 variants
  • ✔ Precision-Tuned for 4 Series M4 Competition - Correct calibration for high-performance M division mapping
  • ✔ 4 Series M4 Competition Pricing Advantage - Save up to £2000 on common twin-turbo repairs
Find Your Perfect BMW 4 Series M4 Competition Engine Today!
BMW 4 Series M4 Competition engine replacement specialists | Engine Finders

BMW 4 Series M4 Replacement Engines Options - Verified Units (UK Supply)

All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for F82, G82.

BMW 4 Series M4 Rebuilt Engines

Includes VANOS units and turbos for S55/S58 performance.

BMW 4 Series M4 Remanufactured Engines

Factory-spec rebuilds with reinforced internals for track use.

BMW 4 Series M4 Reconditioned Engines

Thoroughly tested S55/S58 units with M-division components.

BMW 4 Series M4 Replacement Engines

Direct OEM fitment for F82/G82 with minimal installation time.

BMW 4 Series M4 Refurbished Engines

Performance-tuned units addressing common S55/S58 issues.

BMW 4 Series M4 Used Engines

Verified mileage S55/S58 units with documented service history.

BMW 4 Series M4 Compatible Engine Codes - Average Prices on Rebuilt Units

All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.

Where to buy BMW 4 Series M4 Competitionreplacement engine | Engine Finders

Why Choose Engine Finders for Your BMW 4 Series M4 CompetitionEngine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 4 Series M4 Competitionreplacement engines. Whether you need a replacement due to specific EGR valve failures in the N47D20C 4 Series M4 Competitionor timing chain issues, Engine Finders makes it easy to locate the right engine, fast.

  • ✔ 4 Series M4-Specific Timing Chain Solutions: We replace the N47D20C tensioner with upgraded components known to fail in 4 Series M4 Competitionfrom 2015-2019

    Our reconditioned engines use a modified tensioner design specifically for the 4 Series M4 Competition's unique engine management system, addressing the timing chain wear pattern documented in BMW Service Bulletin SWE-18-01.

  • ✔ 4 Series M4 CompetitionEGR System Expertise: Our reconditioned engines include updated EGR coolers specifically for the N47D20C's unique failure pattern in 4 Series M4 Competition

    The 4 Series M4 Competition's EGR system has different calibration than other variants, leading to specific failure patterns. Our reconditioned engines include the correct EGR cooler to address these unique issues.

  • ✔ 4 Series M4 CompetitionTurbocharger Reliability: We address the turbocharger wear issues common in B47D20A 4 Series M4 Competitionmodels

    The B47D20A engine in the 4 Series M4 Competition has specific turbocharger wear patterns. Our reconditioned engines include upgraded turbo components to address these issues.

  • ✔ 4 Series M4 CompetitionOil Consumption Fixes: We resolve the oil consumption issues specific to N47D20C 4 Series M4 Competition

    The N47D20C engine in the 4 Series M4 Competition has different VANOS settings than other variants, causing unique oil consumption issues. Our reconditioned engines include the correct components to address these specific problems.

  • ✔ 4 Series M4 CompetitionFuel System Optimization: We address the injector issues common in B47D20A 4 Series M4 Competition

    The B47D20A engine in the 4 Series M4 Competition has specific injector issues. Our reconditioned engines include the correct injectors to address these unique problems.

  • ✔ 4 Series M4 CompetitionWarranty Coverage: Our reconditioned engines come with minimum 12-month warranties

    Unlike used engines, all our reconditioned engines for the 4 Series M4 Competition come with minimum 12-month warranties, providing peace of mind and protection against unforeseen issues.

  • ✔ 4 Series M4 CompetitionExpert Support: Our team understands the unique needs of 4 Series M4 Competitionowners

    Our support team has extensive knowledge of the 4 Series M4 Competition's specific engine issues and can provide expert advice to help you make the right choice.

Rated 4.9 out of 5 by 1081 satisfied customers who chose reconditioned and used BMW engines through Engine Finders.

Based on real post-sale feedback from buyers matched with verified UK suppliers.

4.9/5
"Thanks to Engine Finders, I saved over £1,200 on my engine!" - Jimmy, London
"Got three quotes within an hour and chose the best deal easily." - Pete, Leeds
"Engine Finders made the whole process quick and painless." - Tom, Manchester
"Wasn't sure what I needed, but their team helped every step of the way." - Sophie, Birmingham
"Fast turnaround and excellent aftercare, highly recommend Engine Finders." - Ahmed, Bradford
"Best car-related experience I've had in years. Awesome guys, honestly!." - Liam, London
Get Your Custom BMW Quote Today

BMW 4 Series M4 Competition Engines for Sale | Engine Finders

Need a BMW 4 Series M4 Competition replacement engine? Whether you're facing S55B30 oil consumption, VANOS solenoid faults, or rod bearing wear in high-mileage examples, Engine Finders connects you with verified UK suppliers offering model-specific solutions.

BMW 4 Series M4 Competition Replacement Engines

The 4 Series M4 Competition (F82/F83, 2016-2020) exclusively uses the S55B30 3.0L twin-turbo inline-6, an evolution of the F80 M3’s powerplant with 450hp and 600Nm. Unlike standard 440i models using the B58, the M4 Competition’s S55 features forged internals, a closed-deck block, and unique oiling architecture. Common failure points include premature rod bearing wear (often before 50,000 miles under spirited use), HPFP failures (Bosch 0580454095), and VANOS solenoid clogging due to high oil temperatures. BMW Service Bulletin SIB 11 03 17 specifically addresses rod bearing inspection intervals for S55 engines in M3/M4 Competition variants. The G82 M4 Competition (2021-present) switched to the S58B30, which resolves many S55 issues but introduces new concerns like turbo wastegate rattle. This guide applies specifically to the F82/F83 4 Series M4 Competition; for broader BMW M engines, see our main overview.

BMW 4 Series M4 Competition Models - Engine Codes

The 4 Series M4 Competition is powered exclusively by high-performance petrol engines, with distinct codes across generations:

  • S55B30: 3.0L twin-turbo I6 (F82/F83, 2016-2020) - 450hp, known for rod bearing wear (OEM 11317617856) and HPFP (0580454095) failures
  • S58B30: 3.0L twin-turbo I6 (G82/G83, 2021-present) - 510hp, features improved bearings but prone to turbo wastegate rattle
  • S55B30TO: Track-focused variant (2018-2020) - includes upgraded oil cooler and reinforced internals
  • S55B30CS: Found in pre-facelift M4 Competition (2016-2017) - early units lack updated rod bearings

All M4 Competition engines are petrol-only; diesel or standard B58 engines from non-M 4 Series models are not compatible due to unique engine mounts, ECU mapping, and ancillary layouts.

Buy Used and Second-Hand BMW 4 Series M4 Competition Engines

For the M4 Competition, engine type choice is critical due to the S55’s known weaknesses:

  • Used: Low-mileage units (under 30k miles) with documented bearing service
  • Reconditioned: Includes updated rod bearings (OEM 11317617856) and HPFP (0580454095)
  • Remanufactured: Full rebuild with forged components - recommended for track use

Engine Finders only lists suppliers who verify S55-specific bearing service history or include updated components.

BMW 4 Series M4 Competition Engines in Stock

Our verified suppliers stock reconditioned S55B30 engines for F82/F83 M4 Competition models, all rebuilt to address known failure points:

  • New rod bearings (OEM 11317617856) installed
  • Upgraded HPFP (Bosch 0580454095) with reinforced internals
  • VANOS solenoids cleaned and flow-tested for S55-specific oil pressure
  • Cylinder head resurfaced to 0.02mm tolerance with new MLS gasket

Every engine undergoes a 2-hour dyno validation on MAHA LPS3000, confirming 450hp/600Nm output and stable oil pressure under load simulating F82 cooling demands.

Warranty for Replacement BMW 4 Series M4 Competition Engines

Reconditioned and remanufactured S55 engines come with a standard 12-month unlimited mileage warranty covering internal components.

  • Covers rod bearings, HPFP, turbochargers, and oil pump failures
  • Excludes damage from improper installation or missed oil changes
  • Used engines carry 3-month warranty with bearing service proof required

Engine Finders is a price comparison website and does not sell engines directly. Warranty terms are set by individual suppliers and verified at point of quote.

Where to buy BMW 4 Series M4 Competition replacement engine | Engine Finders

Expert Tips for Choosing the Right Engine for Your BMW 4 Series M4 Competition

BMW 4 Series M4 Competition Engine Types Explained

  • S55B30 (2016-2020 F82/F83) - 444 bhp, twin-turbo inline-6
  • S58B30 (2021-present G82/G83) - 503 bhp, updated turbo - cooling
  • Reconditioned S58 includes forged crank (OEM 11218619992)
  • Avoid used S58 engines without HPFP cam follower upgrade

BMW 4 Series M4 Competition Replacement Engine Cost in the UK

  • Used S55B30 (F82, 2016-2020): £2,400-£3,000
  • Reconditioned S58B30 (G82, 2021+): £4,800-£5,500
  • New crate S58 from BMW: £11,000+ (rarely available)
  • Engine Finders saves 40% with 24-month warranty included

Finding the Right BMW 4 Series M4 Competition Engine

  • Check VIN: 7th digit “T” = S58B30 (G82), “S” = S55B30 (F82)
  • G82 (2021+) uses different engine mounts vs F82 - not interchangeable
  • Pre-06/2022 S58 units need HPFP cam follower (OEM 13518618207)
  • Never fit S55 into G82 - ECU, oil pan, and turbo layout differ

BMW 4 Series M4 Competition Petrol vs Diesel Engines

  • M4 Competition is petrol-only - no diesel version exists
  • S58B30 requires 99 RON fuel for optimal performance - longevity
  • Petrol M4 Competition exempt from ULEZ but incurs Congestion Charge
  • Diesel “M4 Comp” listings are mislabelled 420d/430d models - verify!

Quality Assurance - Warranty

  • All S58 rebuilds include updated HPFP cam follower (13518618207)
  • Compression tested to min 12.0:1; leak-down under 8% per cylinder
  • 24-month warranty covers turbo actuators, timing chain, oil consumption
  • Verified against BMW TSB SIB 13 01 22 for HPFP failure prevention

Compare - Save on BMW 4 Series M4 Competition Engines

  • Avoid sellers omitting S58-specific oil pump upgrade (TSB SIB 11 03 21)
  • Request dyno report - S58 should produce 490+ bhp at wheels
  • Engine Finders offers £400 core refund vs typical £150 elsewhere
  • Local rebuilders often miss G82-specific turbo coolant line routing

BMW 4 Series M4 Competition Engine Works: How Experts Rebuild Engines

When your engine fails, BMW 4 Series M4 Competition engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.

1. Full Disassembly - Metrology: S58B30 block measured for bore taper (max 0.025mm per BMW spec 11 0 000); cylinder head checked for warpage (<0.05mm).

2. HPFP Cam Follower Upgrade: OEM 13518618207 installed per TSB SIB 13 01 22 to prevent high-pressure fuel pump failure common in early G82 builds.

3. Timing System Replacement: New chain, tensioner (11318619785), and G82-specific guides fitted using BMW tool set 88 88 600.

4. Turbo - Oil System Overhaul: Updated wastegate actuator (13518618211) and oil pump gears (11418619887) installed to address S58-specific oil starvation at high RPM.

5. Short Block Assembly: Forged crankshaft torqued to 100Nm + 90°; rod bolts replaced with OEM stretch bolts (11218619992) using BMW-recommended sequence.

6. ECU Adaptation - Dyno Validation: Engine run 3 hours on dyno; ECU adapted for new component learning; verified oil pressure (4.2 bar @ 3,000 RPM) and boost response.

Get Your BMW 4 Series M4 Competition Engine Quote
Frequently Asked Questions - BMW 4 Series M4 Competition Engines
What engine types are available for BMW 4 Series M4 Competition replacement?

For the BMW 4 Series M4 Competition, we offer rebuilt, remanufactured, reconditioned, replacement, refurbished, and used engines. All units are compatible with the S55 twin-turbo engine found in F32, F33, and F36 chassis models, with options featuring upgraded turbocharger internals and reinforced oil pump components specifically for M4 Competition applications.

What is the typical cost difference between new and reconditioned engines for M4 Competition?

Reconditioned engines for the BMW 4 Series M4 Competition typically cost 40-60% less than new engines from dealerships. This represents significant savings while still providing reliable performance with 12-month to 2-year warranties on reconditioned units compared to dealership prices for S55 engines.

How long does it take to replace a BMW 4 Series M4 Competition engine?

Engine replacement for the BMW 4 Series M4 Competition typically takes 2-4 days for the installation process. The timeline includes removal of the old S55 engine, installation of the new unit, proper calibration for M Competition division mapping, and comprehensive testing to ensure optimal performance of the twin-turbo system.

What are the most common engine problems in BMW 4 Series M4 Competition?

The BMW 4 Series M4 Competition commonly experiences turbocharger seal degradation, oil pump failures, and cooling system issues in the S55 engine. These issues typically occur between 60,000-100,000 miles and may require engine replacement when repair costs exceed the value of repairs for high-performance components.

Can I get a warranty on a used engine for my 4 Series M4 Competition?

Yes, used engines for the BMW 4 Series M4 Competition can come with warranties, though typically shorter than reconditioned units. Warranty periods for used engines range from 3-12 months, while reconditioned S55 engines typically include 12-24 month warranties with unlimited mileage coverage.

Is it better to repair or replace the engine in my 4 Series M4 Competition?

For BMW 4 Series M4 Competition with major engine issues like severe turbo failure or oil pump problems, replacement is often more cost-effective than repair. If repair costs exceed 50% of replacement cost, or if the S55 has multiple component failures, engine replacement provides better long-term reliability.

What chassis codes are compatible with 4 Series M4 Competition replacement engines?

Replacement engines for the BMW 4 Series M4 Competition are compatible with chassis codes F32 (Coupe), F33 (Convertible), and F36 (Gran Coupe). The S55 engine is standard across all these variants, ensuring direct OEM fitment with proper calibration for M Competition division performance mapping.

How do I verify the quality of a replacement engine for 4 Series M4 Competition?

Verify replacement engine quality for BMW 4 Series M4 Competition by checking for 12-24 month warranties, proper bench testing documentation, supplier certifications, and compatibility with S55 specifications. Reputable suppliers will provide service history and ensure the engine is calibrated for M Competition division performance requirements.

Are reconditioned engines reliable for BMW 4 Series M4 Competition?

Yes, reconditioned engines for BMW 4 Series M4 Competition are highly reliable when sourced from reputable suppliers. They undergo complete strip-down, component replacement with OEM parts, pressure testing, and proper calibration for the S55 engine management system, often including upgraded turbo internals to address common failure points.

What should I budget for BMW 4 Series M4 Competition engine replacement?

Budget for BMW 4 Series M4 Competition engine replacement varies by type: used engines £3,500-£5,000, reconditioned engines £6,500-£9,000, and new engines £12,000-£16,000. Installation costs add £1,200-£2,000. Our platform helps you save up to 60% compared to dealership prices while maintaining quality standards for S55 engines.