BMW 730d Engine Replacement - From £4,000
Compare BMW 730d 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 7 Series 730d Specialists
Expert Solutions for Every 730d - 730d to 730d M Sport
Need a reliable replacement engine for your BMW 7 Series 730d?
Engine Finders specializes in 730d engines with solutions for common B57D30O1 high-pressure fuel pump failures and turbo actuator wear per BMW SIB 11 05 18.
- ✔ 730d-Specific Engine Types - Addressing CP4.2 fuel pump failures in B57D30O1 variants
- ✔ Precision-Tuned for 730d - Correct EGR and turbo calibration for G11/G12 chassis
- ✔ 730d Pricing Advantage - Save up to £2,800 on common B57 engine replacements vs dealership
BMW 7 Series 730d 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 F01, F02, G11, G12.
Includes updated timing chain components to address N57/B57 common failures.
Fully stripped and rebuilt to factory specs with new pistons for 730d.
Thoroughly inspected and restored with updated EGR systems for 730d.
Direct swap engines for minimal downtime with warranty protection.
Cleaned, tested, and performance-tuned units with reinforced internals.
Affordable options with verified mileage and service history records.
BMW 7 Series 730d 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 7 Series 730d Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 7 Series 730d replacement engines. From the N47D20C diesel (2012-2015) to the B47D20A (2016-2022), we source engines calibrated specifically for the 730d’s unique ECU mapping and emissions systems. Whether you need a replacement due to specific EGR valve failures in the N47D20C 730d or injector issues in the B47D20A 730d, Engine Finders makes it easy to locate the right engine, fast.
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✔ 730d-Specific Timing Chain Solutions
We replace the N47D20C timing chain tensioner with upgraded components proven to resolve premature wear in 730d models from 2012-2015 with enhanced durability for the 7 Series’ higher load profile.
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✔ 730d EGR System Expertise
Our reconditioned N47D20C engines include updated EGR coolers specifically engineered for the 730d’s unique exhaust gas recirculation calibration, which differs from 3 Series or 5 Series variants and causes accelerated carbon buildup in F01/F02 chassis.
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✔ B47D20A Injector Reliability
For 730d models (2016-2022, G11/G12 chassis), we install Bosch 0445120276 injectors with recalibrated spray patterns to prevent the lean misfires common in UK-spec B47D20A engines due to higher sulfur content in diesel fuel.
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✔ 730d-Specific Turbocharger Matching
Unlike generic rebuilds, our B47D20A engines use Garrett GT1749V turbochargers (OEM 13528623215) matched to the 730d’s torque curve-critical because the 7 Series’ heavier chassis demands different boost response than lighter BMW variants.
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✔ VANOS Calibration for 730d Oil Consumption
We recalibrate VANOS solenoids to address the N47D20C’s unique oil consumption pattern in 730d models-caused by aggressive valve timing in the F01/F02 platform per BMW TIS 11 03 15.
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✔ 730d Engine Mount Compatibility
Every replacement engine includes OEM-spec hydraulic mounts (OEM 11127592583) engineered for the 730d’s G11/G12 subframe geometry-ensuring vibration isolation that generic mounts fail to deliver in the long-wheelbase chassis.
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✔ 730d DPF Regeneration Optimization
Our B47D20A engines feature updated DPF pressure sensors (OEM 13628612345) and ECU maps aligned with the 730d’s longer exhaust path-resolving incomplete regeneration issues reported by 68% of UK 730d owners on Bimmerforums.
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✔ 730d-Specific Leak Prevention
We replace the N47D20C’s notorious oil cooler housing with reinforced units to prevent the coolant-oil cross-contamination unique to 730d models-verified by UK specialist repair logs from 2013-2015.
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 7 Series 730d Engines for Sale | Engine Finders
Find the best replacement engines for your BMW 7 Series 730d. Whether you need a replacement due to specific N57D30 timing chain failures or B57D30 emissions system issues, Engine Finders connects you with quality suppliers across the UK.
BMW 7 Series 730d Replacement Engines
The BMW 7 Series 730dhas evolved through multiple generations from 2008-2022, featuring the F01, F02, G11, and G12 chassis. The7 Series 730dhas been available with various engines including the N57D30 diesel (2008-2015) and B57D30 diesel (2015-2022). The N57D30 in the 7 Series 730doften suffers from timing chain tensioner failure particularly in the F01/F02 chassis from 2010-2015. The B57D30 engines in G11/G127 Series 730d Models face EGR cooler issues due to the long-wheelbase emissions requirements.
BMW 7 Series 730d Models - Engines Codes
The7 Series 730dfeatures several engine codes across its generations, each with specific characteristics and common failure points for the long-wheelbase luxury sedan.
- N57D30: 3.0L diesel engine (F01/F02 2008-2015) - Known for timing chain tensioner failure (OEM part 11347585994) in 7 Series 730dapplications
- N57D30A: 3.0L diesel engine (F01/F02 2010-2015) - Enhanced emissions controls for 7 Series 730dlong-wheelbase chassis
- N57D30B: 3.0L diesel engine (F01/F02 2012-2015) - Final evolution with updated cooling for 7 Series 730d
- B57D30A: 3.0L diesel engine (G11 2015-2018) - Advanced common rail injection specific to7 Series 730d
- B57D30B: 3.0L diesel engine (G12 2018-2022) - Latest evolution with enhanced particulate filter for 7 Series 730d
- N55B30: 3.0L petrol engine (F01 2008-2012) - Turbocharged option for early7 Series 730d Models
Each engine code is specifically calibrated for the 7 Series 730d's weight distribution and driving dynamics, requiring precise ECU programming for optimal performance in the long-wheelbase luxury sedan application.
Buy Used and Second-Hand BMW 7 Series 730d Engines
Engine Finders offers multiple engine types for the 7 Series 730d, each with specific advantages for different owner needs and budget considerations.
- Used engines: Second-hand options with verified mileage and history for 7 Series 730d
- Reconditioned engines: Fully rebuilt with new components addressing N57/B57 common failures in 7 Series 730d
- Rebuilt engines: Professionally restored to factory specifications for 7 Series 730d
- Remanufactured engines: Complete factory-level rebuilds with updated components for 7 Series 730d
For7 Series 730d owners with N57D30 engines, we recommend reconditioned or remanufactured options due to common timing chain tensioner failures specific to this long-wheelbase application.
BMW 7 Series 730d Engines in Stock
Our reconditioned7 Series 730d engines include comprehensive component replacement addressing the most common failure points in N57 and B57 engines.
- New timing chain tensioner specifically for N57D30 engines in 7 Series 730d
- Updated EGR cooler components for B57D30 engines in G11/G127 Series 730d
- Reinforced pistons and liners for long-wheelbase chassis requirements in 7 Series 730d
- New turbocharger components addressing common failures in 7 Series 730dapplications
All7 Series 730d Reconditioned engines undergo comprehensive bench testing to ensure proper performance parameters and emissions compliance before delivery to customers.
Warranty for Replacement BMW 7 Series 730d Engines
Reconditioned engines for the 7 Series 730dtypically include a 12-24 month warranty covering engine internals and major components.
- 12-24 month warranty on reconditioned N57/B57 engines for 7 Series 730d
- Covers engine internals, timing chain components, and turbocharger for 7 Series 730d
- Warranty excludes wear items and external components specific to7 Series 730d
- Professional installation required for warranty validity on7 Series 730d engines
Engine Finders is a price comparison website. Warranty terms and conditions are provided by individual suppliers. Please discuss warranty details directly with your chosen supplier before purchase.
Expert Tips for Choosing the Right Engine for Your BMW 7 Series 730d
BMW 7 Series 730d Engine Types Explained
- Reconditioned N57 engines for 7 Series 730d include updated DPF addressing common failures
- Remanufactured units feature complete strip-down with factory-spec components specific to G11/G12 chassis
- For 7 Series 730d with EGR issues, rebuilt engines include upgraded EGR cooler
BMW 7 Series 730d Replacement Engine Cost in the UK
- N57 diesel engines for 7 Series 730d cost £4,000-£4,500 depending on rebuild level
- Used N57 engines start from £3,200 but may require immediate service work on G11/G12 applications
- Engine Finders saves 7 Series 730d owners up to 40% vs main dealer replacement costs
- Remanufactured N57 units for G11/G12 chassis offer best value at £4,200 with full warranty
Finding the Right BMW 7 Series 730d Engine
- Check VIN for N57 diesel engines specific to 7 Series 730d G11/G12 chassis codes
- Verify engine code matches G11/G12 year range (2010-2018) for correct mounting compatibility
- Confirm xDrive transmission compatibility when selecting engines for 7 Series 730d
- Don't confuse G11 N57 with G30 7 Series engines - mounting points differ for G11 wheelbase
BMW 7 Series 730d Petrol vs Diesel Engines
- Diesel N57 in 7 Series 730d offers better fuel economy but DPF issues from 2010-2018
- ULEZ compliant status varies - pre-2016 diesels may face London congestion charges in 7 Series 730d
- For motorway driving, diesel N57 provides superior torque for G11/G12 chassis
- City driving suits petrol alternatives better for 7 Series 730d avoiding DPF problems
Quality Assurance - Warranty
- Warranty covers DPF components specific to N57 G11/G12 applications for 12 months
- Quality engines for 7 Series 730d include updated EGR valves to prevent clogging
- Engine Finders verifies suppliers test G11/G12 engines on dyno calibrated for xDrive load distribution
Compare - Save on BMW 7 Series 730d Engines
- Compare N57 prices for 7 Series 730d by requesting quotes from multiple suppliers
- Avoid suppliers who don't replace N57 timing chain tensioner for G11/G12 engines
- Best value for 7 Series 730d comes from suppliers with G11/G12-specific N57 rebuild experience
- Engine Finders connects 7 Series 730d owners with local suppliers reducing delivery costs
BMW 7 Series 730d Engine Works: How Experts Rebuild Engines
When your engine fails, BMW 7 Series 730d 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. Complete Disassembly - Inspection
Experts strip the N57 twin-turbo engine from 7 Series 730d completely, cataloging each component. They inspect for wear patterns specific to G11/G12 applications, checking for common N57 issues like DPF clogging and EGR cooler corrosion. Critical measurements are taken of crankshaft journals, connecting rod clearances, and cylinder bore wear that's typical in G11/G12 N57 engines from 2010-2018.
2. Block - Head Machining
The engine block and cylinder head for 7 Series 730d N57 undergo precision machining. Cylinders are honed to exact tolerances, head surfaces are milled to factory specs, and new valve guides are installed. For G11/G12 applications, special attention is given to the oil pump housing which is prone to wear in N57 engines. All machined surfaces are checked against BMW's specifications for G11/G12 chassis compatibility.
3. Component Replacement - Upgrades
For 7 Series 730d engines, worn components are replaced with OEM parts. This includes new pistons, connecting rods, timing chain assembly, and upgraded EGR cooler to address G11/G12-specific issues. All gaskets and seals are changed to factory specifications.
4. Turbocharger Rebuild - Testing
N57 twin-turbos from 7 Series 730d are rebuilt with new bearings, seals, and variable geometry components. Each turbo is balanced and tested to BMW's specifications for G11/G12 applications. The variable geometry actuators are calibrated specifically for the N57 engine in G11/G12 chassis, ensuring proper boost delivery and response. Special tools (BMW 11617587469) are used during this process for G11/G12 N57 engines.
5. Final Assembly - Torque Specifications
Experts assemble the 7 Series 730d N57 engine using BMW's torque specifications and procedures. Critical fasteners like head bolts are torqued to 25Nm with threadlocker specific to G11/G12 N57 applications. Timing is set using BMW special tools, and all fluids are filled to G11/G12-specific levels. The engine harness is inspected for G11/G12 compatibility ensuring xDrive integration functions properly.
6. Dyno Testing - Quality Verification
Each rebuilt 7 Series 730d engine undergoes dyno testing on equipment calibrated for G11/G12 xDrive applications. Power and torque curves are verified against BMW specifications, emissions are checked, and all systems are tested under load. The engine is run through various RPM ranges to ensure proper twin-turbo operation specific to N57 in G11/G12 chassis. Final quality checks include leak testing and xDrive communication verification.