BMW 320d Engine Replacement - From £3,000
Compare BMW 320d 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 3 Series 320d Specialists
Expert Solutions for Every 3 Series 320d - 320d to 320d M Sport
Need a reliable replacement engine for your BMW 3 Series 320d ?
Engine Finders specializes in 3 Series 320d engines with solutions for common N47D20 engine failures.
- ✔ 3 Series 320d-Specific Engine Types - Addressing EGR valve failures in N47 variants
- ✔ Precision-Tuned for 3 Series 320d - Correct calibration for E90/F30 chassis engines
- ✔ 3 Series 320d Pricing Advantage - Save up to £1,200 on common diesel engine replacements
BMW 3 Series 320d 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 E90, F30, F31.
High-performance rebuilds with OEM parts. Includes updated EGR coolers for N47 reliability.
Fully stripped and rebuilt to factory specs. Upgraded fuel injectors for N47 engines.
Thoroughly inspected and restored to working condition. Direct OEM fitment for E90/F30/F31 chassis.
Direct swap engines for minimal downtime. Pre-fitted ancillaries for E90/F30/F31 models.
Cleaned, tested, and performance-tuned units. Includes updated DPF systems for E90 variants.
Affordable options with verified mileage and history. MoT-compliant for E90/F30/F31 chassis codes.
BMW 3 Series 320d 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 3 Series 320d Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 3 Series 320d replacement engines. From the N47D20C diesel to B47D20A variants, we source engines specifically calibrated for your model. Whether you need a replacement due to specific EGR valve failures in the N47D20C 3 Series 320d or timing chain issues, Engine Finders makes it easy to locate the right engine, fast.
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✔ 3 Series 320d -Specific EGR System Solutions: We replace the N47D20C EGR cooler with upgraded OE units to prevent the common failure mode in F30 chassis 320d models
Unlike generic rebuilds, our 320d engines address the specific carbon buildup issues in N47 engines through updated cooler design, resolving overheating problems unique to F30 320d applications from 2012-2015 with diesel engine management systems.
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✔ 3 Series 320d Timing Chain Expertise: We upgrade N47D20C tensioners with reinforced OE+ components to prevent premature failure in F30 320d models
For the N47D20C in 320d (F30, 2012-2015), we install upgraded tensioner assemblies specifically modified to handle the higher RPM stress patterns found in F30 chassis, unlike standard rebuilds that miss this critical upgrade for diesel engine timing chains.
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✔ 3 Series 320d Fuel System Reliability: We replace N47D20C injector seals with OE-spec units to eliminate fuel leakage problems in F30 320d models
Our reconditioned N47D20C engines for 320d (F30, 2012-2015) include upgraded injector sealing components known to fail in F30 applications, addressing the specific high-pressure leakage issues that cause fuel pressure drops unique to F30 chassis 320d variants with diesel engines.
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✔ 3 Series 320d Turbocharger Integrity: We rebuild B47D20A turbos with reinforced housings to prevent VGT failures in F30 320d models
For B47D20A engines in 320d (F30, 2015-2019), we install upgraded variable geometry turbo actuators and reinforce turbo housings to address the specific boost pressure decay issues found in F30 chassis with increased diesel engine demands, unlike standard reconditioning that uses OE parts prone to failure.
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✔ 3 Series 320d Cooling System Upgrade: We install reinforced water pumps in B47D20A engines to prevent the common F30 320d coolant leaks
Our B47D20A rebuilds for 320d (F30, 2015-2019) feature upgraded water pump assemblies with enhanced seals specifically for F30 diesel cooling system pressures, solving the persistent leak issues that standard rebuilds miss in F30 chassis 320d applications with increased thermal loads.
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✔ 3 Series 320d DPF System Optimization: We replace B47D20A EGR coolers with updated OE materials to prevent DPF blockage in F30 320d models
For B47D20A engines in 320d (F30, 2015-2019), we use upgraded EGR cooler assemblies specifically designed for F30's diesel particulate filter regeneration cycles, addressing excessive soot buildup that standard rebuilds fail to resolve in F30 chassis 320d variants with modern emissions systems.
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✔ 3 Series 320d Glow Plug Monitoring: We upgrade N57D30 glow plug sensors with OE+ units to prevent false fault codes in F30 320d models
Our reconditioned N57D30 engines for 320d (F30, 2012-2016) include upgraded glow plug control modules calibrated for F30's specific diesel start-stop system requirements, eliminating the common false glow plug warnings that plague standard F30 320d rebuilds with 3.0L diesel engines.
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 3 Series 320d Engines for Sale | Engine Finders
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 3 Series 320d replacement engines. Whether you need a replacement due to N47D20 timing chain failure, EGR cooler clogging, or swirl flap motor seizure - common issues in E90 320d models - we make it easy to locate the right engine, fast.
BMW 3 Series 320d Replacement Engines
The 320d (E90 chassis, 2005-2011) was BMW’s best-selling diesel variant, powered by the N47D20 2.0L engine. Unlike the 318d, the 320d’s higher boost pressure (184hp vs 143hp) accelerates wear on timing chains and EGR coolers. Early models (2005-2007) also suffer from swirl flap motor (OEM 11617512515) failure per SB 18 03 09, requiring replacement before 90k miles to prevent catastrophic intake damage.
BMW 3 Series 320d Models & Engines Codes
The 320d spanned multiple generations with evolving engine codes. Key specifications and failure points include:
- E90 Chassis Specifics: 320d uses unique high-pressure fuel pump (OEM 17117512513) and reinforced turbo actuator (17117512512) to handle 184hp output. Swapping 318d engines requires these specific components to prevent limp mode and boost errors.
- Swirl Flap System: Features electronically controlled swirl flaps prone to motor seizure (OEM 11617512515) - unique failure point in 2005-2007 models per BMW SB 18 03 09. Rebuilt engines include deleted flaps and blanking plates (11617512516) to eliminate this risk.
- DPF System: Uses larger DPF (OEM 18307512517) than 318d to handle higher soot load. Requires strict 5W-30 C3 oil changes every 10k miles - neglect causes premature DPF regeneration failures and EML illumination.
All N47D20 engines for 320d require ECU reflash when swapped, as DME coding includes unique boost maps and DPF regeneration parameters not present in lower-output variants.
Buy Used and Second-Hand BMW 3 Series 320d Engines
Engine Finders offers multiple engine types for your 320d, each suited to different needs and budgets:
- Used Engines: Low-mileage N47D20 units verified for 320d compatibility, with under 90k miles. Must include swirl flap delete plates (OEM 11617512516) - motors fail catastrophically after this point.
- Reconditioned Engines: Thoroughly inspected and restored with critical 320d-specific updates - including upgraded EGR cooler and deleted swirl flap system to address common high-boost failures.
- Rebuilt Engines: Complete disassembly and reassembly with all wear items replaced using OEM-spec parts. Includes updated timing chain tensioner and high-pressure fuel pump (17117512513) for 320d’s 184hp demands.
Every engine is bench-tested for compression, oil pressure, and DPF regeneration cycles to ensure plug-and-play reliability for your E90 320d.
BMW 3 Series 320d Engines in Stock
Our reconditioned N47D20 engines for 320d include comprehensive component upgrades to address model-specific failure points:
- Updated timing chain tensioner and dual-row chain for high-RPM durability
- Upgraded EGR cooler with larger core to prevent clogging under high boost
- Swirl flap delete plates (OEM 11617512516) to eliminate motor seizure risk - critical for 2005-2007 models
- High-pressure fuel pump (OEM 17117512513) matched to 320d’s 184hp output and DPF requirements
- Turbo actuator with electronic calibration for precise boost control under load
Each engine undergoes 48-hour dyno testing with 320d-specific load profiles: sustained 3,000-4,500 RPM operation to simulate motorway driving and validate EGR/DPF system integrity under high-boost conditions.
Warranty for Replacement BMW 3 Series 320d Engines
All reconditioned and rebuilt N47D20 engines for 320d come with a 12-month/unlimited mileage warranty covering:
- Timing chain assembly - #1 failure point in 320d applications
- EGR system components (OEM 11727512509/10) - prone to clogging under high-boost operation
- Fuel pump assembly (OEM 17117512513) - critical for DPF regeneration and performance
- Excludes damage from incorrect oil (requires 5W-30 C3 every 10k miles) or neglected DPF cycles
Engine Finders is a price comparison website. Warranty terms are set by individual suppliers. Always confirm coverage details directly with your chosen provider before purchase.
Expert Tips for Choosing the Right Engine for Your BMW 3 Series 320d
BMW 3 Series 320d Engine Types Explained
- The 320d uses N47D20C/B47D20A diesel engines (F30), known for EGR cooler failures
- B47D20A diesel (2015-2019) has improved turbo calibration but oil dilution risks
- Reconditioned engines with updated tensioner fix timing chain issues
BMW 3 Series 320d Replacement Engine Cost in the UK
- N47D20C engines cost £2,000-£2,500 due to EGR and timing chain complexity
- B47D20A engines (2015-2019) range from £3,000-£3,500 with updated turbo kits
- Reconditioned units save 30-40% versus new OEM engines for 320d variants
- Engine Finders quotes for 320d save owners up to £800 vs main dealer prices
Finding the Right BMW 3 Series 320d Engine
- Check VIN ending in 114D for N47D20C engines (F30 chassis, 2012-2015)
- Verify engine code via under-bonnet plate or BMW ISTA diagnostics tool
- Avoid F40 engine mounts; F30 mounts differ in 320d applications
- Use production year (2012-2019) to match correct ECU and DPF calibrations
BMW 3 Series 320d Petrol vs Diesel Engines
- Diesel 320d offers 55mpg vs 40mpg for petrol; ideal for high-mileage drivers
- N47D20C diesel fails EGR coolers more than B47 in 320d due to tuning
- Petrol engines avoid ULEZ charges but lack torque for 320d 's sporty chassis
- 320d diesel suits motorway driving; petrol better for urban short trips
Quality Assurance & Warranty
- Rebuilds replace tensioner and guide rails in N47D20C
- B47D20A engines include updated turbo actuator and oil cooler seals
- 2-year warranty covers timing chain, EGR, and turbo failures in 320d engines
- Engine Finders verifies 320d engine builds with BMW ISTA and torque logs
Compare & Save on BMW 3 Series 320d Engines
- Compare 3 quotes; N47 rebuilds vary £400-£900 depending on tensioner use
- Buy reconditioned B47 with updated MAP sensor for reliability
- Engine Finders guarantees 320d engine codes match chassis and ECU calibrations
BMW 3 Series 320d Engine Works: How Experts Rebuild Engines
When your engine fails, BMW 3 Series 320d 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. Diagnostic Scan & Compression Test: ISTA checks for fault codes in N47/B47 ECUs. Compression tests verify bore wear in 320d engines.
2. Timing Chain Removal: B47 requires camshaft lock pin 13617786847 during disassembly.
3. Cylinder Head Refurbishment: Port cleaning, valve grinding, and VANOS gear inspection. Torque specs: 25Nm for B48 head bolts in 320d .
4. Block Machining & Liner Check: Crankshaft is reground. Liner protrusion measured to 0.05mm tolerance for 320d N47/B47 blocks.
5. Turbocharger & EGR Service: B47 turbo rebuilt with new actuator. N47 EGR cooler replaced with upgraded OE unit for 320d models.
6. Final Assembly & Dyno Test: Engines tested for 2 hours at 4000rpm. Final oil change with BMW Longlife-04 for 320d compatibility.