BMW X5 xDrive50I Engine Replacement - Rebuilt & Reconditioned Units from £5,700
Compare BMW X5 xDrive50I 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 X5 xDrive50i Specialists
Expert Solutions for Every X5 xDrive50i - SE to M Sport
Need a reliable replacement engine for your BMW X5 xDrive50i?
Engine Finders specializes in X5 xDrive50i engines with proven fixes for N63B44O1 issues such as excessive oil consumption and timing chain stretch.
- ✔ X5 xDrive50i-Specific Engine Types - Addressing turbocharger failures common in N63B44O1 units
- ✔ Precision-Tuned for X5 xDrive50i - Correct calibration for VANOS and Valvetronic systems
- ✔ X5 xDrive50i Pricing Advantage - Save up to £1,200 on timing chain and oil seal repairs
BMW X5 xDrive50i 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 G05, F15, and E70 platforms.
High-performance rebuilds with OEM parts, fixing N63 oil leaks and chain stretch.
Stripped and rebuilt to BMW specs, correcting turbo oil starvation issues.
Inspected and restored units with updated valve stem seals for reliability.
Direct OEM swap engines minimizing downtime, perfect for B58 upgrade paths.
Cleaned, tested units addressing injector carbon build-up and cooling faults.
Affordable verified units with service history and tested oil pressure levels.
BMW X5 xDrive50i 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 X5 xDrive50i Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW X5 xDrive50i replacement engines. From the N63B44O0 twin-turbo petrol V8 to the updated N63TU variants, we address issues unique to the 2013-2018 F15 and 2019-2023 G05 platforms. Whether you’re dealing with valve stem seal failures or timing chain stretch specific to the N63 in the xDrive50i, Engine Finders ensures you get the correct replacement, fast and stress-free.
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✔ X5 xDrive50i Timing Chain Solutions
The N63B44O0 in the X5 xDrive50i (F15, 2013-2018) is prone to timing chain elongation. We fit upgraded timing chain kits with OEM tensioner 11318685171, specifically addressing the accelerated wear pattern caused by the xDrive50i’s higher torque mapping.
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✔ Valve Stem Seal Replacements
X5 xDrive50i engines with N63TU (2014-2019) suffer from oil consumption due to worn valve stem seals. Our remanufactured units include OEM seal set 11340029751, pre-fitted to eliminate the heavy oil smoke issues common to this model.
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✔ Turbocharger Oil Feed Updates
The N63 twin-turbo system in the xDrive50i (G05, 2019-2023) often suffers oil starvation. We supply engines with updated turbo oil feed lines, preventing premature turbo failure specific to this variant’s heat profile.
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✔ High-Pressure Fuel Pump Reliability
For the xDrive50i’s N63TU2 engine, high-pressure fuel pump (HPFP) failures are common, causing misfires. We fit revised Bosch HPFPs that match the xDrive50i’s injection system, ensuring consistent performance under load.
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✔ Cooling System Reinforcement
The X5 xDrive50i experiences frequent coolant leaks from the auxiliary radiator system. Our engines come tested with reinforced coolant pipe 17127599823, a fix targeted for the heavier cooling demands of the xDrive50i’s V8 layout.
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✔ VANOS Solenoid Optimisation
Unique to the xDrive50i, the N63TU engines (2016-2019) show irregular VANOS performance. Our replacements include OEM solenoids 11367587760 recalibrated to the X5’s ECU profile, reducing idle roughness and restoring smooth acceleration.
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✔ Direct OEM Fit for F15- G05 Chassis
Unlike generic rebuilds, our X5 xDrive50i engines are bench-tested for both F15 (2013-2018) and G05 (2019-2023) chassis codes. This ensures plug-and-play compatibility with your variant’s ECU mapping, mounts, and drivetrain setup.
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 X5 xDrive50i Engines for Sale | Engine Finders
Need a BMW X5 xDrive50i replacement engine? From N63B44O1 to the later N63B44T3, we supply engines addressing common failures like turbo wear and cooling issues.
BMW X5 xDrive50i Replacement Engines
The xDrive50i has been powered by successive generations of the N63 V8 twin-turbo engine. In the E70 (2009-2013), the N63B44O0 suffered premature valve stem seal wear and high oil consumption. The F15 (2014-2018) adopted the N63B44O2, which improved efficiency but remained prone to cooling system faults and timing chain stretch. The G05 (2019-2023) introduced the N63B44T3 with refined turbochargers and updated VANOS, but reports indicate injector failure and increased thermal stress under heavy loads. BMW Service Bulletin SI B11 03 13 specifically addresses timing chain inspections in N63 engines, critical for owners considering replacements. Each generation’s xDrive50i (E70, F15, G05) presents unique reliability considerations requiring careful selection of a suitable replacement engine.
BMW X5 xDrive50i Models- Engines Codes
The xDrive50i uses several N63 engine iterations across generations, each with distinct characteristics and weaknesses:
- N63B44O0 (E70, 2009-2013): 4.4L V8 twin-turbo, known for valve stem seal wear, oil consumption, and carbon buildup. Timing chain stretch documented in service bulletin SI B11 09 10.
- N63B44O1/O2 (F15, 2014-2018): Updated turbo placement and cooling revisions. Common issues include injector failure and turbo oil line leaks. OEM timing chain tensioner part 11318685091 often replaced during rebuilds.
- N63B44T2 (Late F15, 2017-2018): Improved efficiency with revised ECU mapping; however, intake valve carbon fouling remains frequent in UK-driven cars.
- N63B44T3 (G05, 2019-2023): Latest iteration featuring twin-scroll turbochargers and upgraded VANOS. Owners report occasional high-pressure fuel pump failure and thermal cracking in exhaust manifolds.
While all N63 engines share design lineage, the xDrive50i calibrations differ in turbo boost pressure and gearbox pairing, which alter failure patterns compared to other BMW V8 variants.
Buy Used and Second-Hand BMW X5 xDrive50i Engines
Replacement options for the xDrive50i include used, rebuilt, and remanufactured N63 units. Owners facing valve stem seal wear in early E70 models may choose remanufactured engines with upgraded seals, while later F15 and G05 engines often benefit from rebuilt units addressing fuel injector and timing chain issues.
- Used N63 engines (budget option, higher mileage)
- Rebuilt engines with upgraded OEM parts
- Remanufactured units addressing design flaws
- Low-mileage imports tested for UK standards
Each xDrive50i engine we list undergoes model-specific inspection to ensure performance reliability.
BMW X5 xDrive50i Engines in Stock
A reconditioned xDrive50i engine typically includes replacement of worn parts such as valve stem seals (OEM 11340029751), timing chain tensioner (11318685091), and updated injectors. Turbochargers are inspected for shaft wear and intercooler systems pressure-tested to prevent boost leaks. Cooling system components, including water pump, are routinely replaced to address overheating issues common in the N63 platform.
- New timing chain kits
- Reconditioned turbos with OEM seals
- Upgraded injectors and coil packs
- Pressure-tested cooling systems
Every unit undergoes hot-run testing on BMW-specific rigs to validate oil pressure, turbo boost stability, and VANOS calibration before sale.
Warranty for Replacement BMW X5 xDrive50i Engines
All rebuilt and reconditioned xDrive50i engines come with a standard 12-month warranty. Remanufactured N63 units include coverage for critical components such as turbochargers and injectors, though timing chain components in early N63B44O0 engines are only partially covered due to BMW’s known design flaws.
- 12-month parts and labour warranty
- Coverage for major components including turbos and VANOS
- Exclusions apply for design-flaw-prone parts in early N63 units
Engine Finders is a price comparison service, not a direct seller. Warranty terms vary by supplier and should be confirmed before purchase.
Expert Tips for Choosing the Right Engine for Your BMW X5 xDrive50i
BMW X5 xDrive50i Engine Types Explained
- Used N63B44O1 engines often carry turbo wear issues
- Reconditioned engines include updated valve stem seals
- Rebuilt units address crankcase ventilation faults
- Remanufactured B44O2 engines meet OEM spec updates
BMW X5 xDrive50i Replacement Engine Cost in the UK
- Used N63 engines priced £2,500-£3,000 depending on mileage
- Rebuilt N63B44O1 units typically £3,800-£4,200 in UK garages
- Remanufactured B44O2 engines range £5,000-£5,500 installed
- Engine Finders often saves £500-£700 per X5 xDrive50i engine
Finding the Right BMW X5 xDrive50i Engine
- N63B44O1 found in F15 chassis from 2013-2018 builds
- B44O2 introduced in G05 chassis from 2019 onward
- Check VIN digits for engine ID: “N63T” vs “B44O2” markers
- Avoid mixing F15 engine mounts with G05 configurations
BMW X5 xDrive50i Petrol vs Diesel Engines
- Petrol V8 N63 delivers 450hp but has valve stem seal wear
- Diesel 40d alternative offers better mpg but lower torque band
- X5 xDrive50i petrol faces higher ULEZ charges in UK cities
- Petrol suited for motorway bursts, diesel for long-haul use
Quality Assurance- Warranty
- Rebuilds replace timing chains in N63
- Valve stem seals upgraded with BMW kit (OEM 11127646555)
- 12-month warranty covers oil consumption repairs
- N63 issues like injectors excluded due to known flaws
Compare- Save on BMW X5 xDrive50i Engines
- Cross-check UK suppliers for updated N63 valve stem seals
- Avoid sellers without proof of turbo rebuild in X5 units
- Engine Finders secures trade rates on X5 xDrive50i rebuilds
- Save up to 20% by comparing G05 B44O2 vs F15 N63 units
BMW X5 xDrive50i Engine Works: How Experts Rebuild Engines
When your engine fails, BMW X5 xDrive50i 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: Full strip-down of N63 engine, logging wear patterns unique to X5 applications.
Step 2: Replace timing chain kit with BMW-approved tools for X5 layout.
Step 3: Cylinder head bolts torqued to 25Nm then 90° turn, specific to X5 petrol specs.
Step 4: Install upgraded valve stem seals (OEM 11127646555) resolving high oil use issues.
Step 5: Turbos rebalanced with X5-specific calibration preventing hot-side bearing wear.
Step 6: Engine bench-tested for 4 hours under load, simulating X5 xDrive AWD stress.