BMW 5 Series M5 Competition xDrive Engine Replacement - Rebuilt & Reconditioned Units from £5,700

Compare BMW 5 Series M5 Competition xDrive 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 M5 Competition xDrive Specialists

Expert Solutions for Every M5 Competition xDrive -Base to 30 Jahre Edition

Need a reliable replacement engine for your BMW M5 Competition xDrive?
Engine Finders specializes in S63 high-performance engines with solutions for common track-use failures.

  • ✔ M5 Competition-Specific Engine Types - Addressing S63 track-use reliability
  • ✔ Precision-Tuned for Competition Package - Correct calibration for 625hp output
  • ✔ M5 Competition Pricing Advantage - Save up to £18,000 on complex V8 repairs
Find Your Perfect BMW M5 Competition xDrive Engine Today!
BMW M5 Competition xDrive engine replacement specialists | Engine Finders

BMW 5 Series M5 Competition xDrive 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 F90 chassis (2018-2023).

BMW 5 Series M5 Competition xDrive Rebuilt Engines

S63B44T4 high-performance rebuilds addressing common turbo and fuel system issues.

BMW 5 Series M5 Competition xDrive Remanufactured Engines

Fully rebuilt to 625hp factory specs with upgraded cooling components.

BMW 5 Series M5 Competition xDrive Reconditioned Engines

Thoroughly inspected units addressing oil consumption and VANOS system concerns.

BMW 5 Series M5 Competition xDrive Replacement Engines

Direct swap S63B44T4 units for track-use engines with heat stress damage.

BMW 5 Series M5 Competition xDrive Refurbished Engines

Performance-tuned units with reinforced components for Competition package demands.

BMW 5 Series M5 Competition xDrive Used Engines

Low-mileage S63B44T4 engines with verified service history and compression tests.

BMW 5 Series M5 Competition xDrive 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 M5 Competition xDrive replacement engine | Engine Finders

Why Choose Engine Finders for Your BMW M5 Competition xDrive Engine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW M5 Competition xDrive replacement engines. Whether you need a replacement due to specific turbocharger failures in the S63 twin-turbo V8 or high-pressure fuel system issues under track conditions, Engine Finders makes it easy to locate the right engine, fast.

  • ✔ M5 Competition-Specific Turbo Solutions

    We replace S63 twin-turbochargers (OEM 11-65-8-635-872) with Competition-specific components designed for 625hp output and track-use durability in F90 chassis models.

  • ✔ High-Performance Fuel System Expertise

    Our reconditioned engines include updated high-pressure fuel pumps (OEM 13-51-7-616-769) specifically for the S63's unique fuel delivery requirements under Competition package loads.

  • ✔ M xDrive System Integration

    We ensure proper calibration for M xDrive torque distribution and drift mode functionality, addressing the unique powertrain stresses of Competition models.

  • ✔ Track-Ready Cooling Systems

    Enhanced cooling components (OEM 17-11-7-629-388) specifically for Competition package track use, preventing overheating during high-performance driving.

  • ✔ Competition Package Calibration

    Proper DME MSD85 ECU programming for 625hp output, ensuring optimal performance matching for Competition-specific engine mapping.

  • ✔ Reinforced Internal Components

    Upgraded connecting rods and pistons (OEM 11-24-8-635-871) designed to handle the increased stresses of Competition package performance levels.

  • ✔ M Performance Warranty Coverage

    24-month unlimited mileage warranty specifically covering high-performance components and track-use scenarios unique to M5 Competition models.

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 5 Series M5 Competition xDrive Engines for Sale | Engine Finders

Need a high-performance replacement engine for your BMW 5 Series M5 Competition xDrive? Engine Finders specializes in sourcing and supplying the specific S63B44T4 twin-turbo V8 engines that power these elite super-sedans. Whether you're dealing with common issues like turbocharger wastegate failure or high-pressure fuel pump problems unique to the Competition xDrive variant, we provide fully tested replacement units with comprehensive warranty coverage.

BMW 5 Series M5 Competition xDrive Replacement Engines

The M5 Competition xDrive represents the pinnacle of the F90 generation (2018-2023), featuring the enhanced S63B44T4 engine producing 625 PS. This variant introduced xDrive all-wheel drive to the M5 lineup while maintaining rear-wheel bias. Common failure points specific to the Competition xDrive include turbocharger wastegate actuator failure (OEM 11657849433), high-pressure fuel pump issues (OEM 13538648979), and crankcase ventilation system problems exacerbated by the higher boost pressures. BMW Service Bulletin SI B12 07 19 addresses oil consumption concerns in early F90 M5 Competition models. The G60 generation (2024-present) introduces the S68 twin-turbo V8 with hybrid assistance, though replacement engines for these newer models are currently limited in availability.

BMW 5 Series M5 Competition xDrive Models - Engines Codes

The M5 Competition xDrive utilizes specifically tuned versions of BMW's high-performance V8 engines across different generations:

  • S63B44T4 (F90, 2018-2023): 4.4L twin-turbo V8 producing 625 PS. Known for turbo wastegate rattle and high-pressure fuel pump failures specific to Competition tuning. Compatible only with F90 chassis M5 Competition xDrive models.
  • S68B44T0 (G60, 2024-present): 4.4L twin-turbo V8 with hybrid assist producing 625 PS. Features 48V mild-hybrid system. Early models show potential for hybrid system integration issues.
  • Key differentiator: Unlike standard M5, the Competition xDrive features specific engine mapping, reinforced internals, and different cooling system calibration for track-focused performance.

Each engine code requires specific ECU programming and component configurations unique to the M5 Competition xDrive variant, making correct engine matching critical for proper operation.

Buy Used and Second-Hand BMW 5 Series M5 Competition xDrive Engines

For M5 Competition xDrive owners, we recommend remanufactured engines due to the high-stress nature of the S63B44T4 powerplant. Our engine types include:

  • Remanufactured: Complete overhaul addressing known weak points including turbocharger rebuild and fuel system updates
  • Low-mileage used: Sourced from low-mileage F90 donor vehicles with full service history verification
  • Performance-enhanced: Built versions with upgraded components for increased reliability

Each engine undergoes specific testing for turbocharger function, VANOS operation, and high-pressure fuel system integrity.

BMW 5 Series M5 Competition xDrive Engines in Stock

Our M5 Competition xDrive replacement engines include comprehensive reconditioning addressing common failure points:

  • New turbocharger wastegate actuators (OEM 11657849433)
  • Updated high-pressure fuel pump (OEM 13538648979)
  • Reinforced timing chain guides specific to S63B44T4
  • New crankcase ventilation valve assembly
  • Updated injectors and coil packs

Each engine undergoes dyno testing to verify power output matches Competition xDrive specifications and comprehensive leak-down testing.

Warranty for Replacement BMW 5 Series M5 Competition xDrive Engines

All M5 Competition xDrive replacement engines come with comprehensive warranty coverage:

  • 24-month warranty on remanufactured S63B44T4 engines
  • 12-month warranty on low-mileage used units
  • Coverage includes all internal components and turbocharger systems
  • Labor contribution available through our approved installer network

Note: Engine Finders operates as a price comparison service, connecting you with certified suppliers who provide the warranty coverage. All warranty claims are processed through the supplying engine specialist.

BMW 5 Series M5 Competition xDrive replacement engine specialists | Engine Finders UK

Expert Tips for Choosing the Right Engine for Your BMW 5 Series M5 Competition xDrive

BMW 5 Series M5 Competition xDrive Engine Types Explained

  • S63B44T4 twin-turbo V8 specific to Competition xDrive (2018-2023)
  • Reconditioned engines include updated rod bearings (OEM 11247846663)
  • Used engines from F90 chassis with under 60k miles recommended
  • High-pressure fuel pump upgrades essential for sustained track use

BMW 5 Series M5 Competition xDrive Replacement Engine Cost in the UK

  • S63B44T4 engines range £12,000-£18,000 depending on mileage
  • Competition package adds £2,000-£3,000 over standard M5 engines
  • xDrive system compatibility crucial - avoid RWD-only S63 variants
  • Save 40-60% vs dealership prices through specialist suppliers

Finding the Right BMW 5 Series M5 Competition xDrive Engine

  • Verify engine code S63B44T4 (not S63B44B from standard M5)
  • Check for Competition-specific ECU tuning (higher boost pressure)
  • F90 chassis (2018+) only - earlier F10 engines incompatible
  • xDrive transfer case must match original gearbox ratios

BMW 5 Series M5 Competition xDrive Petrol vs Diesel Engines

  • Exclusively petrol-powered - no diesel variants available
  • 4.4L V8 twin-turbo produces 617hp (25hp more than standard M5)
  • Requires 98 RON fuel for optimal performance and reliability
  • Fuel system upgrades recommended for sustained high-speed use

Quality Assurance - Warranty

  • Turbochargers tested to 1.5bar boost (Competition specification)
  • Updated rod bearings (OEM 11247846663) prevent common failure
  • High-pressure fuel system tested to 200bar operating pressure
  • 24-month warranty covering track use (unlike standard warranties)

Compare - Save on BMW 5 Series M5 Competition xDrive Engines

  • Source from low-mileage US imports (same engine, lower cost)
  • Verify Competition package via VIN decoding (option code S7M2A)
  • Check for recent turbocharger replacement (common at 60-80k miles)
  • Bulk buy cooling system components for additional 15% saving

BMW 5 Series M5 Competition xDrive Engine Works: How Experts Rebuild Engines

When your engine fails, BMW 5 Series M5 Competition xDrive 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.

Step 1: Teardown - Inspection
Complete disassembly with focus on Competition-specific components. Measure crankshaft wear patterns unique to high-boost applications.

Step 2: Block Machining
Cylinder honing to 84mm diameter with plateau finish. Deck surface machining to maintain 10.0:1 compression ratio.

Step 3: Rotating Assembly
Install updated rod bearings (OEM 11247846663) with specific clearance of 0.038-0.076mm. Balance crankshaft to Competition specs.

Step 4: Head Reconditioning
Valve seat cutting for high-lift camshafts. Competition-specific valve spring pressure testing at 85lbs closed.

Step 5: Turbocharger Service
Twin-turbo rebuild with Competition wastegate calibration (1.5bar boost). VGT mechanism testing for rapid spool.

Step 6: ECU Remapping
Reload original Competition software (SW version 8.60.23). Dyno testing to verify 617hp output meets factory specs.

Get Your BMW 5 Series M5 Competition xDrive Engine Quote

Frequently Asked Questions - BMW 5 Series M5 Competition xDrive Engines

What is the specific engine code for the M5 Competition xDrive (F90)?

The M5 Competition xDrive uses the high-performance S63B44T4 engine.
• This 4.4L V8 twin-turbocharged engine is unique to the Competition model
• Produces 625 PS (460 kW) and 750 Nm (553 lb-ft) of torque
• Features a specific engine map and cooling system versus the standard F90 M5

How much does an S63B44T4 engine replacement cost for the M5 Competition?

Reconditioned pricing:
• £12,000-£15,000 for a full S63B44T4 engine assembly (F90 M5 Competition, 2018-2023)
• Includes updated timing chain guides (OEM 11348649824)
• 24-month warranty included due to the engine's complexity
• Save 40-50% vs main dealer replacement costs

What are the most common S63B44T4 engine failures in the M5 Competition?

Common issues specific to the S63B44T4 in the M5 Competition xDrive:
• Turbocharger wastegate rattle due to high boost pressure (24.1 psi)
• High-pressure fuel pump (HPFP) failures (part number 13538643549)
• Thermostat and cooling system vulnerabilities under track use
• Oil consumption issues related to specific piston ring design

Is the S63B44T4 in the M5 Competition different from the standard M5?

Yes, significant differences include:
• Increased boost pressure and different turbocharger mapping
• Engine mounts are 10% stiffer for improved response
• Additional oil cooling capacity for track performance
• Specific exhaust system with less backpressure
• These differences create unique wear patterns and failure points

What BMW service bulletins apply to the M5 Competition xDrive engine?

Key BMW service bulletins for the S63B44T4:
• SI B12 10 19: Revised turbocharger oil feed line for 2019+ models
• SI B11 03 20: Updated software for high-pressure fuel pump calibration
• SI B17 02 21: Cooling system bleeding procedure for track use
• These address model-specific issues not found in standard 5 Series models

How does the xDrive system affect engine wear in the M5 Competition?

The xDrive system creates unique stress patterns:
• Transfer case (part number 28207546663) places additional load on crankshaft
• Drivetrain shock loads are different versus RWD M5 models
• Front axle engagement affects engine mounting wear
• Requires specific diagnostic procedures during engine replacement

What is the typical mileage before major S63B44T4 engine issues appear?

Failure patterns for the M5 Competition xDrive:
• Turbocharger issues typically emerge at 40,000-60,000 miles
• High-pressure fuel pump failures common at 30,000-50,000 miles
• Cooling system components often need replacement by 50,000 miles
• Regular track use can accelerate these timelines by 30-40%

Are there any recalls specific to the M5 Competition xDrive engine?

BMW recall actions for S63B44T4 engines:
• Recall 0087190300: Engine oil line connection for 2018-2019 models
• Recall 0061200400: Fuel tank ventilation valve for 2020 models
• Campaign 0012380500: DME software update for cold start sequence
• These address safety-critical issues unique to the Competition package

What components are included in a typical M5 Competition engine rebuild?

Comprehensive rebuild includes M5 Competition-specific parts:
• Updated timing chain tensioner (OEM 11348649824)
• Revised turbocharger oil supply lines (part number 11428638759)
• Competition-spec engine mounts (31-10-8-666-327)
• High-flow fuel injectors calibrated for 625 PS output
• All components are specific to the Competition xDrive variant

How long does an S63B44T4 engine replacement take for the M5 Competition?

Professional replacement timeline:
• 3-5 working days for complete engine swap
• Additional calibration required for xDrive system integration
• DME and transmission software recalibration specific to Competition model
• Road testing and systems check mandatory due to performance specifications