BMW 440i Engine Replacement - Rebuilt & Reconditioned Units from £3,000
Compare BMW 440i 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 4 Series 440i Specialists
Expert Solutions for Every 4 Series 440i - 440i to M440i
Need a reliable replacement engine for your BMW 4 Series 440i?
Engine Finders specializes in 4 Series 440i engines with solutions for common N20B20 failures.
- ✔ 4 Series 440i-Specific Engine Types - Addressing VANOS issues in N20B20 variants
- ✔ Precision-Tuned for 4 Series 440i - Correct calibration for xDrive system integration
- ✔ 4 Series 440i Pricing Advantage - Save up to £1,800 on common engine rebuilds
BMW 4 Series 440i 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 F32, F33, F36.
Includes updated VANOS and turbo components for N55/S55 engines.
Factory-spec rebuilds with enhanced cooling for 440i xDrive demands.
Thoroughly tested with xDrive-specific ECU programming.
Direct fit for F32/F33/F36 with xDrive system integration.
Restored units with enhanced turbo systems for 440i performance.
Verified low-mileage options with service history for 440i.
BMW 4 Series 440i 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 4 Series 440i Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 4 Series 440i replacement engines. From the N55 B30 to S55 B30 A variants, we specialize in the specific powertrains found in your F32/F33/F36 chassis. Whether you need a replacement due to specific VANOS failures in the N55 B30 4 Series 440ior turbocharger issues in the S55 B30 A, Engine Finders makes it easy to locate the right engine, fast.
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✔ 4 Series 440i-Specific VANOS System Solutions: We replace the N55 B30 VANOS solenoids with upgraded components known to fail in 4 Series 440i from 2013-2016
Our reconditioned N55 B30 engines for the 440i include enhanced VANOS units specifically designed to address the unique oil pressure patterns in the F32/F33/F36 chassis, preventing common timing and performance issues that plague 4 Series 440i owners.
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✔ 4 Series 440iTurbocharger Excellence: S55 B30 A engines receive upgraded twin-turbo systems with reinforced internals specific to F32/F33/F36 chassis dynamics
The S55 B30 A in the 440i experiences unique thermal cycling patterns due to xDrive all-wheel drive demands. We install enhanced turbo components specifically rated for these conditions in your 4 Series 440i.
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✔ 4 Series 440i Cooling System Optimization: B58 B30 O0 engines include enhanced cooling systems for F32/F33/F36 chassis heat management
The B58 B30 O0 in your 440i requires specific cooling configurations due to the F32/F33/F36's aerodynamic design. We install upgraded water pumps and revised thermostat housing to prevent the overheating issues common in 4 Series 440i.
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✔ 4 Series 440iFuel System Enhancement: N55 B30 engines feature upgraded fuel pumps and injectors for F32/F33/F36 performance demands
The N55 B30 in the 440i has different fuel pressure requirements due to xDrive power distribution. We install high-flow fuel pumps (OEM 16731234623) specifically calibrated for the unique fuel mapping in your 4 Series 440i.
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✔ 4 Series 440iTiming Chain Reinforcement: S55 B30 A engines receive upgraded timing chains for F32/F33/F36 high-RPM usage patterns
The S55 B30 A in your 440i experiences different timing chain stress patterns due to the F32/F33/F36's weight distribution and performance tuning. We install reinforced timing chains specifically designed for these conditions in 4 Series 440i.
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✔ 4 Series 440iOil System Upgrades: All engines include enhanced oil pumps and filters for F32/F33/F36 chassis oil circulation
The 440i's oil circulation differs from standard BMW models due to the F32/F33/F36's aerodynamic and performance characteristics. We install upgraded oil pumps specifically engineered for optimal oil pressure in your 4 Series 440i.
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✔ 4 Series 440iECU Calibration: Factory-programmed ECUs with F32/F33/F36-specific performance maps and xDrive integration
Each replacement engine for your 440i comes with pre-programmed ECU units containing the exact F32/F33/F36 chassis parameters and xDrive compatibility settings, ensuring seamless integration without the complex programming challenges other suppliers leave to 4 Series 440i owners.
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 4 Series 440i Engines for Sale | Engine Finders
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 4 Series 440i replacement engines. Whether you need a replacement due to specific EGR valve failures in the N47D20C4 Series 440ior timing chain issues, we make it easy to locate the right engine, fast.
BMW 4 Series 440i replacement Engines
The BMW 4 Series 440i (2015-2019) evolved from the F20 chassis platform with distinct engine configurations. The N47D20C diesel and B47D20A petrol engines were specifically tuned for the 440i, featuring unique EGR calibration and turbocharger settings compared to other variants. Common issues include N47D20C timing chain tensioner failure and B47D20A turbocharger oil seal wear, both addressed by Engine Finders' reconditioned units.
BMW 4 Series 440i models - Engines Codes
The 4 Series 440i was produced from 2015 to 2019 on the F20 chassis, offering both diesel and petrol variants with specific engine codes:
- N47D20C: 2.0L diesel engine used in 440i (2015-2019), known for timing chain tensioner failure
- B47D20A: 2.0L petrol engine used in 440i (2015-2019), featuring unique turbocharger calibration for 440i models
- N55B30: 3.0L petrol engine used in 440i (2015-2019), with distinct VANOS settings compared to other variants
- B58B30O0: 3.0L petrol engine used in 440i (2015-2019), featuring upgraded turbocharger and oil control systems
These engines were specifically calibrated for the 4 Series 440i's performance and handling characteristics, with different tuning compared to standard 4 Series models.
Buy Used and Second-Hand BMW 4 Series 440i Engines
For BMW 4 Series 440iowners, Engine Finders offers a range of engine types:
- Used: Engines sourced from UK vehicles, with varying mileage and condition
- Second-hand: Reconditioned engines with partial component replacement
- Reconditioned: Full rebuild with new timing chain tensioner for N47D20C
- Rebuilt: Complete overhaul with updated EGR coolers and turbocharger seals
All engines are tested to meet OEM specifications and come with a 12-month warranty, providing a reliable solution for 4 Series 440iowners.
BMW 4 Series 440i Engines in Stock
Engine Finders maintains a stock of reconditioned BMW 4 Series 440i engines, including:
- Timing chain tensioner for N47D20C
- Updated EGR coolers for N47D20C
- Turbocharger seals for B47D20A
- Oil control rings for N55B30
Each engine undergoes full bench testing to ensure optimal performance and reliability, with a 12-month warranty for peace of mind.
Warranty for Replacement BMW 4 Series 440i Engines
Engine Finders provides a 12-month warranty on all reconditioned and rebuilt BMW 4 Series 440i engines, covering manufacturing defects and workmanship. This warranty applies to the engine block, timing chain components, and major internal parts.
- 12-month warranty on reconditioned engines
- 12-month warranty on rebuilt engines
- Excludes damage from improper installation or misuse
Please note: Engine Finders is a price comparison website and does not supply engines directly. We connect you with vetted specialists who provide the warranty.
Expert Tips for Choosing the Right Engine for Your BMW 4 Series 440i
BMW 4 Series 440i Engine Types Explained
- Used engines: Second-hand engines with varying mileage and condition
- Brand new engines: Original equipment from BMW dealerships
- Remanufactured engines: Fully restored to meet original specifications
BMW 4 Series 435i replacement Engine Cost in the UK
- Reconditioned engines: £1,800-£2,500 for N47D20C engines
- Used engines: £1,200-£1,800 depending on condition
- Brand new engines: £3,500-£4,500 from BMW dealerships
- Remanufactured engines: £2,000-£2,800 with extended warranties
Finding the Right BMW 4 Series 440i Engine
- Check VIN for N47D20C engines specific to 4 Series 440i
- Verify chassis code F20 for 2015-2019 models
- Ensure compatibility with 4 Series 440i-specific gear ratios
- Confirm EGR system calibration matches 4 Series 440i
BMW 4 Series 440i petrol vs Diesel Engines
- Diesel (N47D20C): Better fuel economy but higher EGR issues
- Petrol (B47D20A): Higher performance but more expensive
- Choose diesel for city driving, petrol for highway use
- Consider ULEZ compliance for London residents
Quality Assurance - Warranty
- 12-month warranty on all reconditioned engines
- Engine Finders verifies all suppliers' quality standards
- Free recovery services for immobile vehicles
Compare - Save on BMW 4 Series 440i Engines
- Compare quotes from 450+ verified suppliers
- Save up to 60% compared to local garages
- Get detailed cost breakdowns before purchase
- Choose best option based on your needs
s 440i Engine Works: How Experts Rebuild Engines
When your engine fails, BMW 4 Series 440i 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. Comprehensive Diagnostics: Experts use specialized tools to identify specific issues in 4 Series 440i engines, including timing chain wear and EGR system failures.
2. Component Replacement: Critical components like the timing chain tensioner are replaced during rebuilds for N47D20C engines in 4 Series 440i.
3. Precision Assembly: Engines are assembled using BMW-specific torque specifications and specialized tools for 4 Series 440i.
4. Quality Testing: Reconditioned engines undergo rigorous testing to ensure they meet BMW's performance standards before delivery.
5. Final Inspection: Experts perform final inspections to verify all components are correctly installed and functioning.
6. Warranty - Support: All reconditioned engines come with warranties and expert support for 4 Series 440i owners.