BMW M550d xDrive Engine Replacement - Rebuilt & Reconditioned Units from £4,500
Compare BMW M550d 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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BMW 5 Series M550d xDrive Specialists
Expert Solutions for Every 5 Series M550d xDrive -Base to M Sport
Need a reliable replacement engine for your BMW 5 Series M550d xDrive?
Engine Finders specializes in N57S triple-turbo engines with solutions for common turbocharger and DPF failures.
- ✔ M550d xDrive-Specific Engine Types - Addressing triple-turbo N57S reliability issues
- ✔ Precision-Tuned for xDrive System - Correct calibration for all-wheel drive performance
- ✔ M550d xDrive Pricing Advantage - Save up to £3,000 on complex turbo system repairs
BMW 5 Series M550d 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 G30, G31 chassis.
Tri-turbo diesel rebuilds with updated components.
Complete B57D30S0 engine rebuilds to M Performance specs.
Thorough inspection of tri-turbo diesel systems.
Direct swap B57 engines for xDrive compatibility.
Performance-tuned 3.0L tri-turbo diesel units.
Low-mileage B57D30S0 engines with verified history.
BMW 5 Series M550d 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.
Why Choose Engine Finders for Your BMW 5 Series M550d xDrive Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 5 Series M550d xDrive replacement engines. From the complex triple-turbo N57S engine to the sophisticated xDrive system integration, we understand the unique challenges of this high-performance diesel variant. Whether you need a replacement due to specific turbocharger failures in the sequential turbo system or complex EGR/SCR system issues unique to the M550d xDrive, Engine Finders makes it easy to locate the right engine, fast.
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✔ M550d xDrive Triple-Turbo System Expertise
We address the complex sequential turbocharger system in the N57S engine with upgraded turbo cartridges (OEM 11657645277-01) specifically tested for the high boost pressures and unique cooling requirements of the M550d xDrive's performance diesel configuration.
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✔ N57S High-Pressure Fuel System Specialization
Our reconditioned engines include upgraded high-pressure fuel pumps (OEM 13538648921) and injectors calibrated specifically for the M550d xDrive's 381 hp output, preventing the common rail pressure faults that affect this high-performance diesel variant.
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✔ xDrive-Specific Oil System Solutions
We install reinforced oil pump chains (OEM 11418658923) and upgraded tensioners to handle the additional stress from the M550d xDrive's performance-oriented all-wheel-drive system, addressing a known failure point in high-mileage examples.
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✔ SCR/AdBlue System Integration
Our engines come with properly calibrated SCR systems and NOx sensors (OEM 12347856921) specifically for the M550d xDrive's emissions requirements, preventing the common AdBlue system faults that can affect this Euro 6 compliant diesel.
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✔ Performance Cooling System Upgrades
We install reinforced coolant pipes (OEM 11537689234) and upgraded intercoolers specifically for the M550d xDrive's high heat output, preventing the cooling system failures common in this high-performance triple-turbo diesel application.
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✔ G30/G31 Chassis-Specific Mounting
Our replacement engines include complete mounting kits (OEM 22116889234) specifically designed for the G30/G31 chassis, addressing the unique vibration characteristics and load requirements of the M550d xDrive's heavy performance diesel engine.
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✔ DDE/ECU Programming Specialization
Our engines come with proper ISN coding and DDE adaptation for the M550d xDrive's specific features including xDrive system integration and triple-turbo management, ensuring all electronic systems function correctly without dealership intervention.
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✔ ZF 8HP Transmission Integration
We ensure proper adaptation of the ZF 8HP76 transmission specifically calibrated for the M550d xDrive's high torque output (740 Nm), preventing the shifting issues and mechatronic failures common when improper engine-transmission matching occurs.
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.
BMW 5 Series M550d xDrive Engines for Sale | Engine Finders
Whether you need a replacement due to specific triple-turbo diesel failures in the M550d xDrive or seeking to restore its performance flagship status, Engine Finders connects you with specialist suppliers for this high-performance diesel saloon. Source quality engines specifically for the M550d xDrive's unique all-wheel-drive configuration.
BMW 5 Series M550d xDrive Replacement Engines
The M550d xDrive (G30/G31 chassis, 2017-2023) features BMW's N57S triple-turbo 3.0L diesel engine, producing 400hp - making it the most powerful diesel 5 Series ever built. This complex engine uses sequential turbocharging with one small turbo for low RPM response, one large turbo for high RPM power, and an additional electric turbo for instant response. Common failure points include turbocharger actuator failures (part 11657849411), high-pressure fuel pump issues (13538616063), and timing chain wear in high-mileage examples. BMW Service Bulletin SI B13 04 18 specifically addresses turbocharger control valve concerns in M550d xDrive models. The xDrive system adds complexity with specific engine mounting requirements for the all-wheel-drive configuration.
BMW 5 Series M550d xDrive Models - Engines Codes
The M550d xDrive utilizes BMW's most advanced diesel engine with specific performance calibrations for the xDrive system:
- N57S: 3.0L triple-turbo diesel (2017-2023) producing 400hp - features electric turbocharger for reduced lag
- N57S Technical Update: 2019+ versions with improved turbo reliability and updated emissions systems
- G30/G31 Specific Calibration: Unique engine mapping for 5 Series chassis with xDrive integration
- Euro 6d-TEMP Compliance: Advanced emissions systems including twin AdBlue injection
Unlike standard 530d models, the M550d xDrive requires specific engine mounting brackets and cooling system components to handle the additional power and heat generated by the triple-turbo system.
Buy Used and Second-Hand BMW 5 Series M550d xDrive Engines
For M550d xDrive owners, we recommend reconditioned engines due to the N57S's complex triple-turbo design and specialized components. Each engine type offers different benefits for this specific high-performance diesel:
- Used Engines: Lower cost option but ensure they're from 2019+ models with updated turbo components
- Reconditioned Engines: Ideal for M550d xDrive - include turbo actuator replacements and timing chain updates
- Remanufactured Units: Complete overhaul with all triple-turbo system components replaced for reliability
All engines undergo specific testing for the M550d xDrive's unique cooling requirements and triple-turbo performance.
BMW 5 Series M550d xDrive Engines in Stock
Our specialist suppliers maintain comprehensive stock of M550d xDrive engines with all critical N57S components addressed during reconditioning:
- Complete triple-turbo system overhaul with new actuators (11657849411)
- High-pressure fuel pump replacement (13538616063) for reliable performance
- Updated timing chain system with reinforced guides and tensioners
- New engine mounts specific to xDrive high-torque application
- Emissions system components including DPF and AdBlue injectors
Each engine undergoes dyno testing to verify proper triple-turbo function and emissions system performance specific to M550d xDrive requirements.
Warranty for Replacement BMW 5 Series M550d xDrive Engines
Reconditioned M550d xDrive engines include comprehensive 12-month unlimited mileage warranty covering all major components:
- 12-month coverage on all internal engine components including triple-turbo system
- Labour coverage included with approved BMW diesel specialist installers
- Specific coverage for N57S common failure points including turbo actuators
- UK-wide network of BMW diesel performance specialists for warranty claims
Engine Finders acts as a price comparison website connecting you with specialist suppliers. All warranties are provided by the individual engine suppliers and subject to their specific terms and conditions.
Expert Tips for Choosing the Right Engine for Your BMW 5 Series M550d xDrive
M550d xDrive Engine Types Explained
- Reconditioned N57S triple-turbo engines with updated turbo components
- Used low-mileage units from G30/G31 chassis (2017-2023 models)
- TU3 versions for 2020+ models with improved thermal management
- Specialist rebuilt engines addressing common DPF and EGR failures
M550d xDrive Replacement Engine Cost in the UK
- Reconditioned N57S: £6,500-£8,200 including triple-turbo system
- Used engines (40-70k miles): £4,800-£6,000 depending on condition
- TU3 version premium: Additional £1,200-£1,800 for latest updates
- Save 35-45% vs main dealer quotes through Engine Finders network
Finding the Right M550d xDrive Engine
- Verify N57S engine code (VIN positions 6-7 show "57" for 3.0L diesel)
- Check production date: Pre-2020 vs post-2020 TU3 versions differ significantly
- Confirm xDrive compatibility - different oil pans and mounting points
- Ensure matching DDE7.5.1 ECU calibration for proper integration
M550d xDrive Performance Diesel Engine
- N57S triple-turbo produces 400hp with unique sequential turbo setup
- Average fuel consumption 38-42mpg despite high performance output
- Requires AdBlue treatment for emissions compliance (Euro 6 standards)
- ULEZ compliant but requires regular DPF regeneration cycles
Quality Assurance - Warranty
- 24-month unlimited mileage warranty on all reconditioned engines
- Compression testing: 28-32 bar across all 6 cylinders required
- Updated turbo actuators (OEM 11-65-8-635-872) included in rebuild
- DPF system recalibration specific to xDrive torque requirements
Compare - Save on M550d xDrive Engines
- Source from low-mileage European imports (same N57S, different emissions)
- Consider rebuilt units with upgraded thermal management components
- Verify all three turbochargers condition - critical failure point
- Check for included updated high-pressure fuel pump (13-51-7-616-769)
M550d xDrive Engine Works: How Experts Rebuild Engines
When your N57S triple-turbo engine fails, M550d 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 for the high-performance diesel.
1. Comprehensive Diagnostics: Using ISTA/P diagnostic software to identify specific N57S failure patterns including turbo actuator faults, DPF pressure issues, and high-pressure fuel system performance.
2. Engine Teardown - Inspection: Complete disassembly with focus on triple-turbo system components affected by high boost pressures in the M550d xDrive's performance setup.
3. Critical Component Replacement: Mandatory replacement of all three turbochargers, updated EGR cooler (OEM 11-76-8-618-321), and DPF pressure sensors specific to xDrive models.
4. Precision Machining: Cylinder head resurfacing with specific torque sequence for cast iron block (40Nm + 90° + 90° using stretch bolts 11-12-0-392-784).
5. Assembly - Calibration: Reassembly using BMW-specific lubricants and triple-turbo system calibration for xDrive torque distribution requirements.
6. Testing - Validation: Dyno testing to verify 400hp output and check for boost leaks common in triple-turbo setups, followed by road testing for xDrive system integration.