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BMW 650i Convertible Engine Replacement - Rebuilt & Reconditioned Units from £2,000

Compare BMW 650i Convertible 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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🌀 Save up to 60% 🌀 Reconditioned Engine Specialists 🌀 15 Years Experience 🌀 100s of UK Suppliers 🌀 12–24 Month Warranty 🌀 No Hidden Charges 🌀 Save up to 60% 🌀 Reconditioned Engine Specialists 🌀 15 Years Experience 🌀 100s of UK Suppliers 🌀 12–24 Month Warranty 🌀 No Hidden Charges

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Engine Finders

BMW 6 Series 650i Convertible Specialists

Expert Solutions for Every 6 Series 650i Convertible -650i to M6 Convertible

Need a reliable replacement engine for your BMW 6 Series 650i Convertible ?
Engine Finders specializes in6 Series 650i Convertible engines with solutions for common N62B44 engine cooling system failures.

  • ✔6 Series 650i Convertible -Specific Engine Types - Addressing water pump and thermostat issues in N62B44 variants
  • ✔ Precision-Tuned for6 Series 650i Convertible - Correct calibration for convertible-specific cooling demands
  • ✔6 Series 650i Convertible Pricing Advantage - Save up to £2000 on common cooling system repairs
Find Your Perfect BMW 6 Series 650i Convertible Engine Today!
BMW 6 Series 650i Convertible engine replacement specialists | Engine Finders

BMW 6 Series 650i 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 650i Convertible Rebuilt Engines

Complete overhaul with new internals addressing S63 twin-turbo issues.

BMW 6 Series 650i Convertible Remanufactured Engines

Factory-spec restoration with updated components for F12/F13 reliability.

BMW 6 Series 650i Convertible Reconditioned Engines

Thoroughly restored with VANOS and oil pump updates for S63 engines.

BMW 6 Series 650i Convertible Replacement Engines

Direct swap engines with correct F12/F13 mounting and wiring compatibility.

BMW 6 Series 650i Convertible Refurbished Engines

Performance-tuned units with reinforced cooling for convertible S63 engines.

BMW 6 Series 650i Convertible Used Engines

Verified low-mileage S63 units with service history for F12/F13 chassis.

BMW 6 Series 650i 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 650i Convertible replacement engine | Engine Finders

Why Choose Engine Finders for Your BMW 6 Series 650i Convertible Engine?

Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 6 Series 650i Convertible replacement engines. From the N62B44 petrol variants in E64 chassis (2010-2015) to specific cooling system solutions, we provide tailored engines addressing the most common6 Series 650i Convertible failure points including water pump and thermostat issues.

  • ✔6 Series 650i Convertible -Specific Cooling System Solutions: We upgrade the N62B44 water pump with reinforced seals specifically designed for6 Series 650i Convertible cooling demands

    The N62B44 in6 Series 650i Convertible experiences unique cooling system stress patterns due to the convertible's roof mechanism affecting airflow, requiring specialized water pump solutions that standard BMW parts don't address.

  • ✔ Enhanced Thermostat Components for6 Series 650i Convertible N62B44: We install upgraded thermostats (OEM 11537525817) with improved temperature regulation for convertible-specific cooling requirements

    The6 Series 650i Convertible 's open-top design creates different heat dissipation patterns compared to coupé versions, requiring thermostat components specifically calibrated for these conditions.

  • ✔ Precision-Tuned VANOS Units for6 Series 650i Convertible N62B44: Updated VANOS components with improved seals for6 Series 650i Convertible specific timing demands

    The N62B44 in6 Series 650i Convertible has different VANOS calibration compared to other BMW models, requiring specialized units that maintain proper variable valve timing under convertible-specific operating conditions.

  • ✔6 Series 650i Convertible Timing Chain Upgrades: We install reinforced timing chain assemblies specifically designed to handle N62B44 convertible engine loads

    The6 Series 650i Convertible 's N62B44 engine experiences different vibration and load patterns compared to coupé versions, requiring timing chain components that can withstand these specific forces.

  • ✔ Oil System Enhancements for6 Series 650i Convertible N62B44: Upgraded oil pumps with improved flow characteristics for convertible-specific oil circulation

    The N62B44 in6 Series 650i Convertible has different oil pressure requirements compared to other BMW models due to its convertible-specific engine bay configuration and cooling demands.

  • ✔6 Series 650i Convertible-Specific EGR Solutions: We address EGR cooler issues common in N62B44 engines used in6 Series 650i Convertible applications

    While EGR issues exist in multiple BMW models, the6 Series 650i Convertible 's N62B44 has unique exhaust gas recirculation patterns due to its specific engine management system and convertible configuration.

  • ✔6 Series 650i Convertible Chassis-Specific Mounting Solutions: Engine mounts and brackets designed specifically for E64 chassis (2010-2015) to ensure perfect fitment

    The6 Series 650i Convertible 's E64 chassis has unique mounting points and weight distribution compared to other BMW models, requiring engine mounting solutions specifically calibrated for these dimensions.

  • ✔ Dyno-Tested for6 Series 650i Convertible Performance: Each N62B44 engine undergoes performance testing calibrated specifically for6 Series 650i Convertible driving characteristics

    Our reconditioned engines are tested with6 Series 650i Convertible -specific parameters including convertible aerodynamics, weight distribution, and cooling system demands for optimal performance.

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 650i Convertible Engines for Sale | Engine Finders

Find premium replacement engines for your BMW 6 Series 650i Convertible. Whether you need a replacement due to specific turbocharger failures in the S63 B44 6 Series 650i Convertible or VANOS unit issues, our platform connects you with quality solutions.

BMW 6 Series 650i Convertible Replacement Engines

The BMW 6 Series 650i Convertible (F12/F13 chassis, 2011-2018) features the twin-turbocharged S63 B44 V8 engine producing 407hp. The 6 Series 650i Convertible experienced specific issues with VANOS units, oil pumps, and direct injection carbon buildup due to its high-performance engine tuning in the convertible body style. The twin-turbo configuration in the F12/F13 chassis required upgraded cooling systems, with common failures in charge pipe cooling and intercooler efficiency due to the convertible's unique heat management challenges.

BMW 6 Series 650i Convertible Models - Engines Codes

The 6 Series 650i Convertible features several S63 engine codes across its production years, each with specific characteristics and common failure points for this high-performance convertible model.

  • S63 B44 A: 4.4L twin-turbo V8 petrol engine in 6 Series 650i Convertible (F12/F13, 2011-2018), known for oil pump and charge pipe cooling issues in convertible configuration
  • S63 B44 T4: Updated 4.4L twin-turbo V8 in 6 Series 650i Convertible (F12/F13, 2015-2018), addressing earlier cooling system concerns for convertible body
  • S63 B44 T2: Mid-generation 4.4L twin-turbo V8 in 6 Series 650i Convertible (F12/F13, 2013-2015), with improved intercooler efficiency for convertible heat management
  • N55 B30: 3.0L twin-turbo petrol engine in early 6 Series 650i Convertible (F12/F13, 2011-2012), known for VANOS unit failures and carbon buildup in direct injection system
  • S63 B44: Original 4.4L twin-turbo V8 in 6 Series 650i Convertible (F12/F13, 2011-2018), prone to oil pump and VANOS solenoid issues in convertible application
  • N63 B40: 4.0L naturally aspirated V8 in early 6 Series 650i Convertible (F12/F13, 2011-2012), with common VANOS and timing chain tensioner problems

Each S63 engine code in the 6 Series 650i Convertible requires specific attention to its unique failure patterns, with different solutions needed depending on the generation and chassis code (F12 for coupé, F13 for convertible).

Buy Used and Second-Hand BMW 6 Series 650i Convertible Engines

For 6 Series 650i Convertible owners, we offer various engine options including used, reconditioned, rebuilt, and remanufactured units, each with specific benefits for your high-performance convertible model.

  • Used engines: Original powerplants from low-mileage 6 Series 650i Convertible with verified condition
  • Reconditioned engines: Restored S63 units with updated components specific to 6 Series 650i Convertible issues
  • Rebuilt engines: Completely overhauled powerplants with new internals for 6 Series 650i Convertible
  • Remanufactured engines: Factory-standard restoration with updated design improvements for 6 Series 650i Convertible

For 6 Series 650i Convertible with S63 engines, we recommend reconditioned or remanufactured engines due to common turbocharger and VANOS failures specific to these high-performance convertible variants.

BMW 6 Series 650i Convertible Engines in Stock

Our 6 Series 650i Convertible reconditioned engines include comprehensive component replacement addressing the specific failure patterns of S63 engines in the convertible application.

  • New VANOS units specifically calibrated for 6 Series 650i Convertible engine management
  • Updated turbocharger components with reinforced oil cooling for twin-turbo S63 engines in 6 Series 650i Convertible
  • Improved intercooler systems addressing charge pipe cooling issues in 6 Series 650i Convertible
  • New oil pumps and VANOS solenoids specifically for high-performance 6 Series 650i Convertible engines
  • Direct injection system cleaning and updated intake components for carbon buildup prevention in 6 Series 650i Convertible

Each 6 Series 650i Convertible engine undergoes rigorous dyno testing and diagnostic verification to ensure optimal performance and compatibility with the F12/F13 chassis systems in the convertible configuration.

Warranty for Replacement BMW 6 Series 650i Convertible Engines

All reconditioned and rebuilt engines for the 6 Series 650i Convertible come with a comprehensive 12-month warranty covering manufacturing defects.

  • 12-month warranty on all reconditioned 6 Series 650i Convertible engines
  • Coverage includes internal components and turbocharger systems specific to 6 Series 650i Convertible
  • S63 engine-specific components covered for 6 Series 650i Convertible applications
  • Nationwide UK support for 6 Series 650i Convertible engine warranty claims

Please note that Engine Finders is a price comparison website. Warranty terms and conditions are provided by individual suppliers. Discuss all warranty details directly with your chosen supplier for your 6 Series 650i Convertible engine replacement.

Where to buy BMW 6 Series 650i Convertible replacement engine | Engine Finders

Expert Tips for Choosing the Right Engine for Your BMW 6 Series 650i Convertible

BMW 6 Series 650i Convertible Engine Types Explained

  • For 6 Series 650i Convertible N62B44A engines, reconditioned units with upgraded VANOS recommended
  • Used 6 Series 650i Convertible engines from E64 chassis (2004-2010) offer savings but check service history
  • New engines for 6 Series 650i Convertible S63B44T variants ensure reliability but cost 40% more
  • Reconditioned 6 Series 650i Convertible engines include updated oil cooler for N62B44A

BMW 6 Series 650i Convertible Replacement Engine Cost in the UK

  • N62B44A V8 engines for 6 Series 650i Convertible cost £2,800-£3,500 used, £4,200-£5,000 reconditioned
  • S63B44T twin-turbo engines for 6 Series 650i Convertible £5,500-£6,800 reconditioned due to complexity
  • Engine Finders saves 6 Series 650i Convertible owners £1,200-£1,800 vs local garages on average
  • Warranty options for 6 Series 650i Convertible engines range from 12 months to 2 years on reconditioned

Finding the Right BMW 6 Series 650i Convertible Engine

  • Check VIN to confirm N62B44A (E64) or S63B44T (F12) engine code for your 6 Series 650i Convertible
  • Verify ECU compatibility for 6 Series 650i Convertible E64 chassis (2004-2010) with engine management
  • Confirm engine bay fitment for 6 Series 650i Convertible with specific mounting points and wiring
  • Request service records for used 6 Series 650i Convertible engines to verify maintenance history

BMW 6 Series 650i Convertible Petrol vs Diesel Engines

  • 6 Series 650i Convertible petrol N62B44A offers smooth V8 performance but higher fuel consumption
  • 6 Series 650i Convertible S63B44T twin-turbo provides enhanced power but complex maintenance
  • No diesel option available for 6 Series 650i Convertible (E64/F12), only petrol variants
  • Petrol 6 Series 650i Convertible engines avoid ULEZ charges but higher fuel costs than diesels

Quality Assurance - Warranty

  • 6 Series 650i Convertible engines tested for oil pressure, compression, and VANOS operation
  • For N62B44A, VANOS solenoids replaced during 6 Series 650i Convertible rebuilds
  • Warranty covers 6 Series 650i Convertible engine internals but excludes oil leaks after 12 months
  • Quality check includes timing chain tension for 6 Series 650i Convertible N62B44A engines

Compare - Save on BMW 6 Series 650i Convertible Engines

  • Compare 6 Series 650i Convertible engine quotes from 450+ suppliers via Engine Finders platform
  • Choose suppliers who replace N62B44A timing chain guides for 6 Series 650i Convertible
  • Request detailed breakdown for 6 Series 650i Convertible engine quotes to avoid hidden costs
  • Consider reconditioned 6 Series 650i Convertible engines with warranty to save £1,500+ vs new

BMW 6 Series 650i Convertible Engine Works: How Experts Rebuild Engines

When your engine fails, BMW 6 Series 650i 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.

1. Disassembly - Inspection: Experts carefully dismantle the N62B44A/S63B44T engine from your 6 Series 650i Convertible, cataloging all components and inspecting for wear patterns specific to this model. Critical checks include VANOS solenoids, timing chain tensioners, and oil cooler condition.

2. Component Cleaning - Assessment: All parts from your 6 Series 650i Convertible engine undergo thorough cleaning and assessment. Specialists use specialized equipment to test compression, check for cracks in the N62B44A block, and evaluate the twin-turbo system for the S63B44T variant.

3. Part Replacement - Upgrades: Worn components in the 6 Series 650i Convertible engine are replaced with OEM parts. For N62B44A engines, this includes VANOS solenoids and upgraded timing chain guides to address known failure points.

4. Machining - Boring: Engine blocks for the 6 Series 650i Convertible undergo precision machining to restore proper tolerances. Cylinder walls are honed to factory specifications, ensuring optimal performance for both N62B44A and S63B44T engines.

5. Reassembly with Torque Specs: The 6 Series 650i Convertible engine is reassembled using BMW-specific torque specifications. Critical bolts like the N62B44A cylinder head bolts are torqued to 25Nm, and special tools ensure proper VANOS alignment.

6. Testing - Quality Control: Completed 6 Series 650i Convertible engines undergo rigorous testing including oil pressure checks, leak tests, and performance verification. The engine is run on test beds to ensure proper operation before shipping.

Frequently Asked Questions - BMW 6 Series 650i Convertible Engines

How much does a BMW 6 Series 650i Convertible N62B44 engine replacement cost in the UK?

Reconditioned pricing:
• £4,500-£5,200 for N62B44 engine (6 Series 650i Convertible E64, 2003-2007)
• Includes updated water pump for6 Series 650i Convertible
• 12-month warranty included
• Save 40-50% vs dealerships through Engine Finders

What causes water pump failure in6 Series 650i Convertible N62B44 engines?

The N62B44 in6 Series 650i Convertible experiences water pump failures due to:
• Cooling system stress from convertible roof mechanism affecting airflow
• Seals degrade at due to open-top driving conditions
• Reconditioned engines include upgraded water pump assemblies

Are6 Series 650i Convertible N62B44 engines the same as in coupé models?

While sharing the N62B44 engine code,6 Series 650i Convertible engines differ:
• Cooling system calibrated differently due to convertible roof design
• Different water pump requirements for open-top conditions
• E64 chassis has different cooling demands than E63 coupé
• Reconditioned engines must address convertible-specific cooling issues

What's the warranty on6 Series 650i Convertible N62B44 reconditioned engines?

Standard warranty coverage for6 Series 650i Convertible N62B44 engines:
• 12-month warranty on reconditioned units
• Covers cooling system components (water pumps, thermostats)
• Includes timing chain assemblies
• VANOS units covered for6 Series 650i Convertible

How long does it take to replace a6 Series 650i Convertible N62B44 engine?

Engine replacement timeline for6 Series 650i Convertible N62B44:
• Professional installation: 1-3 days for experienced mechanics
• E64 chassis requires specific tools for convertible components
• Cooling system requires complete flush and refill
• Engine testing and ECU programming needed for6 Series 650i Convertible

Can I use a used engine from a6 Series 650i Convertible for my replacement?

Using a used N62B44 engine from6 Series 650i Convertible:
• Possible but requires verification of mileage and condition
• Check for water pump and cooling system health
• May have same failure points as original engine
• Reconditioned engines offer better reliability for6 Series 650i Convertible

What's included in a6 Series 650i Convertible N62B44 reconditioned engine?

Complete reconditioned N62B44 for6 Series 650i Convertible includes:
• New water pump with reinforced seals
• Updated thermostat components for convertible cooling
• Timing chain assembly and tensioners
• VANOS units with improved seals

What are common VANOS issues in6 Series 650i Convertible N62B44 engines?

VANOS problems in6 Series 650i Convertible N62B44 engines:
• Seals degrade due to convertible cooling system variations
• Oil contamination from improper cooling in open-top conditions
• Units fail more frequently than in coupé models
• Reconditioned engines include upgraded VANOS components

Is timing chain replacement needed for6 Series 650i Convertible N62B44 engines?

Timing chain maintenance for6 Series 650i Convertible N62B44:
• Yes, timing chain should be replaced during rebuilds
• Convertible engine loads create different stress patterns
• Chain guides and tensioners require replacement
• Reconditioned engines include all timing chain components

How do I verify the N62B44 engine is compatible with my6 Series 650i Convertible?

Engine compatibility verification for6 Series 650i Convertible N62B44:
• Check VIN for E64 chassis codes specific to convertible
• Verify engine bay mounting points match E64 configuration
• Confirm ECU programming compatibility for6 Series 650i Convertible
• Engine block numbers must match N62B44 specification