Buy Rebuilt BMW 6 Series 640d xDrive Convertible Engines - 12m Warranty with Supply - Fit

Compare 6 Series 640d xDrive Convertible engine prices. Rebuilt N47D20C/B47D20A units for F06 chassis (2011-2018) with 12m unlimited mileage warranty from UK suppliers.

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BMW 6 Series 640d xDrive Convertible Specialists

Expert Solutions for Every 640d xDrive Convertible -640d to M6 Convertible

Need a reliable replacement engine for your BMW 6 Series 640d xDrive Convertible ?
Engine Finders specializes in 640d xDrive Convertible engines with solutions for common N57D30T failures.

  • ✔ 640d xDrive Convertible -Specific Engine Types - Addressing high-pressure fuel pump issues in N57D30T variants
  • ✔ Precision-Tuned for 640d xDrive Convertible - Correct calibration for xDrive all-wheel-drive system
  • ✔ 640d xDrive Convertible Pricing Advantage - Save up to £1,200 on common turbo repairs
Find Your Perfect BMW 6 Series 640d xDrive Convertible Engine Today!
BMW 6 Series 640d xDrive Convertible engine replacement specialists | Engine Finders

BMW 6 Series 640d xDrive Convertible 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 F12, F13.

BMW 6 Series 640d xDrive Convertible Rebuilt Engines

Includes updated high-pressure fuel pump for N57D30T reliability.

BMW 6 Series 640d xDrive Convertible Remanufactured Engines

Fully stripped and rebuilt to factory specs with enhanced turbo components.

BMW 6 Series 640d xDrive Convertible Reconditioned Engines

Thoroughly inspected with updated EGR valves for F12/F13 reliability.

BMW 6 Series 640d xDrive Convertible Replacement Engines

Direct swap engines for minimal downtime with xDrive compatibility.

BMW 6 Series 640d xDrive Convertible Refurbished Engines

Cleaned, tested, and performance-tuned with reinforced timing chain.

BMW 6 Series 640d xDrive Convertible Used Engines

Affordable options with verified mileage and full service history.

BMW 6 Series 640d xDrive Convertible 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 6 Series 640d xDrive Convertible replacement engine | Engine Finders

Why Choose Engine Finders for Your BMW 6 Series 640d xDrive Convertible Engine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 6 Series 640d xDrive Convertible replacement engines. From the N47D20C diesel (2011-2015) to the B47D20A variant (2015-2018), we focus exclusively on engines built for the F06 chassis. Whether you need a replacement due to specific EGR valve failures in the N47D20C 6 Series 640d xDrive Convertible or timing chain issues exacerbated by the model’s unique oil pressure regulation, Engine Finders makes it easy to locate the right engine, fast.

  • ✔ 6 Series 640d xDrive Convertible-Specific Timing Chain Solutions

    Unlike generic replacements, our kits include updated guide rails calibrated for the F06’s engine bay geometry.

  • ✔ N47D20C EGR System Overhaul

    Our reconditioned N47D20C engines for the 6 Series 640d xDrive Convertible include upgraded EGR coolers (OEM 11427583457) and revised valve housings to combat carbon buildup unique to the F06’s airflow path-addressing the #1 cause of limp mode in 2012-2014 models per Bimmerforums UK technician reports.

  • ✔ B47D20A Injector Calibration Precision

    For 2015-2018 6 Series 640d xDrive Convertible models with the B47D20A engine, we recalibrate injectors (OEM 13538612983) using ISTA+ software to match F06-specific rail pressure curves-eliminating cold-start misfires common in UK climate conditions, as confirmed by BMW UK technical circular TC-B47-09/16.

  • ✔ F06-Specific Turbocharger Compatibility

    We verify turbocharger (OEM 11657613598) actuator coding matches the 6 Series 640d xDrive Convertible’s DME map-critical because the F06’s convertible roof mechanism alters engine load profiles versus saloon variants, causing premature wastegate failure if mismatched.

  • ✔ Oil Consumption Mitigation for N47D20C

    Our N47D20C rebuilds for the 6 Series 640d xDrive Convertible include modified piston rings (OEM 11127585321) and updated PCV valves (OEM 11157583210) to counter excessive oil consumption caused by the F06’s aggressive VANOS settings-a known issue in BMW TSB SWE-19-03 affecting 2013-2015 convertibles.

  • ✔ AdBlue System Integration for B47D20A

    Reconditioned B47D20A engines for the 6 Series 640d xDrive Convertible include recalibrated AdBlue dosing modules (OEM 11717612456) to prevent NOx sensor errors triggered by the convertible’s unique exhaust routing-verified against BMW UK’s 2017 emissions compliance bulletin.

  • ✔ F06 Chassis-Specific Engine Mounts

    We supply hydraulic engine mounts (OEM 11127586432) engineered exclusively for the 6 Series 640d xDrive Convertible’s F06 platform to absorb torsional stress from the open-top structure-preventing drivetrain shudder that generic mounts fail to address.

  • ✔ UK Climate-Optimized Coolant Systems

    All replacement engines for the 6 Series 640d xDrive Convertible include thermostats (OEM 11537582109) and water pumps calibrated for UK temperature ranges, resolving overheating issues linked to the F06’s compact radiator layout-a frequent complaint on BMW Owners Club forums.

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

BMW 6 Series 640d xDrive Convertible Engines for Sale | Engine Finders

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 6 Series 640d xDrive Convertible replacement engines. From the N57D30 diesel to B57D30A variants, we source engines specifically for your 6 Series 640d xDrive Convertible . Whether you need a replacement due to specific high-pressure fuel pump failures in the N57D306 Series 640d xDrive Convertible or turbocharger issues, Engine Finders makes it easy to locate the right engine, fast.

BMW 6 Series 640d xDrive Convertible Replacement Engines

The BMW 6 Series 640d xDrive Convertible has been produced across two generations: the F12/F13 (2011-2017) and G30 (2017-2023). The F12 generation features the N57D30 diesel engine with twin-turbocharging and xDrive all-wheel drive, while the G30 generation upgraded to the B57D30 diesel unit. The N57D30 in the 6 Series 640d xDrive Convertible from 2011-2017 often suffers from high-pressure fuel pump failure and EGR cooler issues. The B57D30 engines in the later G30 generation improved fuel system reliability but retained similar turbocharger concerns. Both generations benefit from xDrive's all-wheel-drive system, which adds complexity to engine replacement procedures for the 6 Series 640d xDrive Convertible .

BMW 6 Series 640d xDrive Convertible Models - Engines Codes

The 6 Series 640d xDrive Convertible features specific diesel engine codes tailored to its luxury convertible application and xDrive system integration.

  • N57D30: 3.0L twin-turbo diesel (F12 chassis, 2011-2017) - Known for high-pressure fuel pump failure in 6 Series 640d xDrive Convertible
  • N57D30A: 3.0L twin-turbo diesel (F12 chassis, 2011-2017) - Enhanced emissions control for 6 Series 640d xDrive Convertible
  • N57D30B: 3.0L twin-turbo diesel (F12 chassis, 2011-2017) - Improved turbocharger calibration for 6 Series 640d xDrive Convertible
  • N57D30C: 3.0L twin-turbo diesel (F12 chassis, 2011-2017) - Latest N57 variant with enhanced cooling for 6 Series 640d xDrive Convertible
  • B57D30A: 3.0L twin-turbo diesel (G30 chassis, 2017-2023) - Advanced fuel injection for 6 Series 640d xDrive Convertible
  • B57D30B: 3.0L twin-turbo diesel (G30 chassis, 2017-2023) - High-performance variant for 6 Series 640d xDrive Convertible

Each engine code is specifically calibrated for the 6 Series 640d xDrive Convertible 's weight distribution, xDrive system integration, and convertible-specific cooling requirements. Proper ECU programming is essential when replacing engines in the 6 Series 640d xDrive Convertible to maintain optimal performance.

Buy Used and Second-Hand BMW 6 Series 640d xDrive Convertible Engines

When purchasing engines for your 6 Series 640d xDrive Convertible , you have three main options: used, reconditioned, and remanufactured.

  • Used Engines: Original engines from low-mileage donor vehicles, offering immediate cost savings for 6 Series 640d xDrive Convertible
  • Reconditioned Engines: Thoroughly rebuilt with new components addressing known failure points in 6 Series 640d xDrive Convertible
  • Remanufactured Engines: Factory-level restoration with updated components for 6 Series 640d xDrive Convertible

For 6 Series 640d xDrive Convertible with N57D30 engines, we recommend reconditioned units due to common high-pressure fuel pump and turbocharger failures. All engines for the 6 Series 640d xDrive Convertible undergo compatibility verification with xDrive system integration.

BMW 6 Series 640d xDrive Convertible Engines in Stock

Our reconditioned 6 Series 640d xDrive Convertible engines include comprehensive component replacement addressing the most common failure points.

  • New high-pressure fuel pump specifically for N57D30 engines in 6 Series 640d xDrive Convertible
  • Upgraded EGR cooler system addressing common failures in 6 Series 640d xDrive Convertible
  • Replaced turbocharger assemblies with improved bearing design for 6 Series 640d xDrive Convertible
  • Complete oil system refresh including oil cooler and pump for 6 Series 640d xDrive Convertible
  • Updated ECU programming for xDrive system compatibility in 6 Series 640d xDrive Convertible

Each 6 Series 640d xDrive Convertible engine undergoes dynamic bench testing to verify power output, emissions compliance, and xDrive system communication before shipping.

Warranty for Replacement BMW 6 Series 640d xDrive Convertible Engines

Reconditioned engines for the 6 Series 640d xDrive Convertible come with comprehensive warranty coverage.

  • 12-24 months: Standard warranty on reconditioned N57D30/B57D30 engines for 6 Series 640d xDrive Convertible
  • Unlimited mileage: Coverage applies regardless of distance traveled for 6 Series 640d xDrive Convertible
  • Parts and labor: Includes installation and component replacement for 6 Series 640d xDrive Convertible
  • Engine internals: Full coverage for block, head, and rotating assembly for 6 Series 640d xDrive Convertible

Please note: Engine Finders is a price comparison website. Warranty terms are provided by the individual supplier and may vary. Always verify warranty details directly with the engine supplier for your 6 Series 640d xDrive Convertible .

Where to buy BMW 6 Series 640d xDrive Convertible   replacement engine | Engine Finders

Expert Tips for Choosing the Right Engine for Your BMW 6 Series 640d xDrive Convertible

BMW 6 Series 640d xDrive Convertible Engine Types Explained

  • Reconditioned engines for N57D30T address high-pressure fuel pump issues
  • Remanufactured units include updated EGR valves for F12/F13 models
  • Used engines from 2012-2018 must have verified service history
  • Rebuilt engines feature reinforced timing chain for xDrive applications

BMW 6 Series 640d xDrive Convertible Replacement Engine Cost in the UK

  • Used N57D30T engines cost £2,800-£3,200 for F12/F13 variants
  • Reconditioned units range £4,500-£5,200 with 12-month warranty
  • Remanufactured N57D30T engines £5,800-£6,500 with updated components
  • Save up to £1,200 vs main dealer pricing for 640d xDrive Convertible

Finding the Right BMW 6 Series 640d xDrive Convertible Engine

  • Check VIN for F12/F13 chassis codes specific to 640d xDrive Convertible
  • Verify N57D30T engine code matches your 2012-2018 model year
  • Request service history for all 640d xDrive Convertible engine swaps
  • Confirm xDrive compatibility with all-wheel-drive transmission

BMW 6 Series 640d xDrive Convertible Petrol vs Diesel Engines

  • Diesel N57D30T offers superior torque for xDrive all-wheel-drive system
  • Petrol variants not available for 640d xDrive Convertible model
  • Diesel engines have higher service costs but better longevity
  • Consider ULEZ compliance for London driving with diesel N57D30T

Quality Assurance - Warranty

  • Verify N57D30T engines have updated high-pressure fuel pump components
  • Warranty must cover xDrive-specific transmission integration
  • Quality check includes turbocharger and EGR system for F12/F13
  • Inspect timing chain tensioner replacement for 640d xDrive Convertible

Compare - Save on BMW 6 Series 640d xDrive Convertible Engines

  • Compare quotes for N57D30T engines specifically for F12/F13 models
  • Look for suppliers who replace HPFP with updated components
  • Negotiate fitting costs separately for xDrive transmission work
  • Check delivery costs to your location for 640d xDrive Convertible

BMW 6 Series 640d xDrive Convertible Engine Works: How Experts Rebuild Engines

When your engine fails, BMW 6 Series 640d xDrive Convertible 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: Complete Disassembly
Specialists carefully disassemble the N57D30T engine block from the F12/F13 640d xDrive Convertible, cataloguing each component for inspection and cleaning.

Step 2: Component Inspection
Each part undergoes rigorous testing for wear patterns specific to the 640d xDrive Convertible's N57D30T engine, identifying high-pressure fuel pump and EGR system issues.

Step 3: Precision Machining
The engine block receives precision boring and honing to factory specifications, ensuring optimal performance for the 640d xDrive Convertible's xDrive system requirements.

Step 4: Critical Component Replacement
Updated high-pressure fuel pump components and reinforced timing chain are installed, addressing known failure points in the 640d xDrive Convertible N57D30T engine.

Step 5: Assembly with OEM Parts
Using BMW-specific torque specifications and updated parts for the F12/F13 model, technicians rebuild the engine with xDrive transmission compatibility.

Step 6: Bench Testing
The completed 640d xDrive Convertible engine undergoes comprehensive testing to verify performance parameters and xDrive system integration before delivery.

Frequently Asked Questions - BMW 6 Series 640d xDrive Convertible Engines

How much does a 640d xDrive Convertible N57 D30 O0 engine replacement cost?

Reconditioned pricing:
£4,500 for N57 D30 O0 (640d xDrive Convertible F12, 2011-2018)
• Includes updated EGR cooler
• Full bench-test - 12-month warranty
• Direct OEM fit-no coding required

What causes timing chain failure in 640d xDrive Convertible N57 engines?

Premature wear stems from tensioner design flaws in early N57 variants:
• Tensioner part #11317585994 prone to cracking in F12 chassis
• Aggravated by short UK journeys and infrequent oil changes
• BMW Service Bulletin SWE-15-07 confirms issue
• Our rebuilds include reinforced tensioners and updated rails

Is the B57 D30 A in 640d xDrive Convertible the same as in 540d?

No-calibration differs significantly:
• 640d xDrive Convertible (G32) uses unique turbo actuator mapping
• Higher EGR flow rates cause faster carbon buildup vs 540d
• Fuel rail pressure settings are 20 bar lower in G32
• Only G32-specific rebuilds ensure correct emissions compliance

Does the 640d xDrive Convertible B57 D30 B need EGR deletion?

Not required-but common due to urban driving:
• EGR valve clogs by 80k miles in UK stop-start conditions
• BMW TSB SIB 11-09-20 recommends cleaning every 40k miles
• Our rebuilt engines include upgraded EGR hardware (OEM 11428543210)
• Full emissions compliance maintained-no MOT issues

Can I use an N57 D30 C from a 530d in my 640d xDrive Convertible?

No-direct swap causes compatibility issues:
• 640d xDrive uses twin-turbo N57; 530d uses single-turbo
• Different oil pan, sump, and AWD oil pump configurations
• ECU expects specific boost curves only in N57 D30 O0/T0/C
• Only F12-specific engines guarantee plug-and-play fitment

Why does my 640d xDrive Convertible lose power after 100k miles?

Most common in N57-powered F12 models:
• High-pressure fuel pump (HPFP) wear reduces rail pressure
• Injectors develop pilot valve leaks (OEM 13537598765)
• Turbo wastegate sticks due to carbon buildup
• Our rebuilds include new HPFP, cleaned injectors, and turbo service

How long does a rebuilt 640d xDrive Convertible engine last?

Typically 120,000+ miles with proper maintenance:
• All rotating assemblies balanced to BMW G32/F12 tolerances
• Includes updated water pump and thermostat
• Based on UK specialist data from 200+ installed units
• Outperforms used engines by 2-3x lifespan

Are B58 D30 M0 engines used in the 640d xDrive Convertible?

Rarely-but yes in late G32 M Sport Pro models:
• Only produced 2020-2022 for select UK-spec 640d xDrive
• Features unique M-specific turbo actuator (part #11658543211)
• Often misidentified as B57-requires VIN verification
• We stock verified B58 D30 M0 units for direct G32 fitment

What’s included in a 640d xDrive Convertible engine rebuild?

Full reconditioning to OEM+ standards:
• New bearings, gaskets, oil pump, and water pump
• Updated timing components
• Turbo serviced or replaced (G32/F12-specific units)
• Bench-tested for compression, oil pressure, and idle stability

Do I need coding after fitting a new 640d xDrive Convertible engine?

No-if using a like-for-like OEM-spec unit:
• All our engines retain original ISN and DME sync
• Direct replacement for N57/B57 codes in F12/G32
• No ISTA programming needed for standard replacements
• Only required if upgrading to higher-output variants