BMW 740Li Engine Replacement - Rebuilt & Reconditioned Units from £2,000
Compare BMW 740Li 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 740Li Specialists
Expert Solutions for Every 7 Series 740Li- 740Li to M760Li xDrive
Need a reliable replacement engine for your BMW 7 Series 740Li?
Engine Finders specializes in 7 Series 740Li engines with solutions for common B58TU30A twin-turbo failures.
- ✔7 Series 740Li-Specific Engine Types - Addressing twin-turbo boost issues in B58TU30A variants
- ✔ Precision-Tuned for 7 Series 740Li- Correct calibration for xDrive all-wheel drive system
- ✔7 Series 740LiPricing Advantage - Save up to £2000 on common twin-turbo repairs
BMW 7 Series 740Li 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 G11/G12.
Includes new timing chain tensioner for B58 engines in G11 740Li.
Full disassembly with OEM-spec HPFP and turbo for B58-powered 740Li (G11/G12).
Restored with updated PCV system to combat carbon buildup in G11 740Li.
Direct-swap units with emissions hardware pre-calibrated for G11 740Li.
Performance-tuned with walnut-blasted heads for B58M1/M2 variants in 740Li.
Verified low-mileage units from accident-free G11 740Li with full service history.
BMW 7 Series 740Li 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 740Li Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 7 Series 740Li replacement engines. From the B58TU30A twin-turbo to N55B30 variants, we address specific7 Series 740Lifailure patterns. Whether you need a replacement due to specific twin-turbo boost issues in the B58TU30A7 Series 740Li or VANOS solenoid failures, Engine Finders makes it easy to locate the right engine, fast.
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✔7 Series 740Li-Specific Twin-Turbo Solutions: We replace the B58TU30A turbo system with upgraded components known to fail in 7 Series 740Li from 2016-2022
Our reconditioned engines include enhanced twin-turbo systems specifically designed to address the high-boost thermal cycling issues unique to the 7 Series 740Li's B58TU30A application.
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✔7 Series 740Li VANOS System Expertise: Our reconditioned engines include updated VANOS solenoids specifically for the B58TU30A's unique failure pattern in 7 Series 740Li
We install OEM VANOS solenoids calibrated for the 7 Series 740Li's specific engine management system, preventing common oil pressure issues that plague these variants.
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✔ G11/G12 Chassis Compatibility Guarantee: Direct fitment for 7 Series 740Liwith xDrive all-wheel drive system integration
Every engine is verified for G11/G12 chassis compatibility ensuring seamless integration with the 7 Series 740Li's sophisticated xDrive system and electronic components.
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✔ High-Performance Cooling System Upgrades: Enhanced intercooler and oil cooling for 7 Series 740LiB58TU30A twin-turbo applications
We upgrade the cooling system components specifically to handle the 7 Series 740Li's twin-turbo thermal demands and prevent overheating issues.
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✔ BMW Service Bulletin Compliance: Updated components per SWE-20-05 addressing7 Series 740LiB58TU30A specific issues
Our engines incorporate all BMW technical service bulletin updates relevant to the 7 Series 740Li, including enhanced turbo oil line routing and improved heat shielding.
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✔ Premium Fuel System Components: Updated high-pressure fuel pump for 7 Series 740LiB58TU30A direct injection
We install reinforced fuel system components specifically rated for the 7 Series 740Li's high-boost direct injection requirements.
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✔ xDrive System Integration Testing: Comprehensive compatibility verification for 7 Series 740Li's all-wheel drive
Each7 Series 740Li engine undergoes xDrive system communication testing to ensure proper integration with the all-wheel drive management system and electronic stability control.
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 740Li Engines for Sale | Engine Finders
Whether you're facing HPFP failure in your B58-powered 740Li or timing chain wear in early G11 models, Engine Finders supplies UK-rebuilt, warranty-backed BMW 7 Series 740Li replacement engines with direct OEM fitment for G11/G12 chassis.
BMW 7 Series 740Li Replacement Engines
The 740Li was exclusively offered in the G11/G12 long-wheelbase generation (2016-2022), powered solely by the B58 3.0L turbocharged inline-six. Unlike the standard 740i, the 740Li shares identical engine hardware but experiences higher thermal stress due to extended rear cabin cooling demands. Common issues include high-pressure fuel pump (HPFP) leaks, timing chain tensioner wear, and carbon buildup on intake valves-exacerbated by the G11’s lean-burn calibration.
BMW 7 Series 740Li Models - Engines Codes
Only B58 variants were factory-fitted to the 740Li across its entire production run, each tuned for the long-wheelbase platform’s unique load and emissions profile:
- B58B30A: Base 326hp engine in 740Li (G11, 2016-2019) - prone to HPFP failure and timing chain tensioner wear.
- B58B30M0: xDrive-specific tune (G11, 2019-2020) - reinforced internals but susceptible to charge pipe cracks under sustained load.
- B58B30M1: Euro 6d-compliant 740Li (G11, 2020-2021) - increased carbon buildup due to lean calibration and extended DPF regeneration cycles.
- B58B30M2: Final-year 740Li (G11, 2021-2022) - integrated SCR system stress from stricter emissions, leading to NOx sensor and injector faults.
Unlike the 730i’s B48 or 750i’s N63, the 740Li exclusively uses the B58 family-never diesel or V8-making engine selection precise but critical for correct emissions and drivetrain compatibility.
Buy Used and Second-Hand BMW 7 Series 740Li Engines
For the 740Li, engine type choice is critical due to B58-specific weaknesses in the G11 platform:
- Used: High risk-hidden HPFP or chain wear common in high-mileage G11 units.
- Reconditioned: Recommended-includes new tensioner, HPFP, and walnut-blasted heads.
- Rebuilt: Full disassembly with OEM-spec internals; ideal for M1/M2 variants.
- Remanufactured: Factory-level restoration; best for 2020+ 740Li with emissions hardware.
Given the 740Li’s complex emissions and thermal load profile, we strongly advise against used engines-opt for reconditioned or rebuilt to ensure reliability.
BMW 7 Series 740Li Engines in Stock
Our reconditioned 740Li engines include model-specific upgrades addressing known G11 failure points:
- New timing chain tensioner
- Replaced Siemens HPFP with updated diaphragm design
- Walnut-blasted intake valves to combat carbon buildup
- Updated PCV system and valve cover gasket
- Pre-calibrated emissions hardware for G11 SCR/DPF compliance
Every engine undergoes 4-hour bench testing simulating G11 load profiles-including cold-start, boost hold, and emissions readiness-ensuring immediate, MoT-compliant operation.
Warranty for Replacement BMW 7 Series 740Li Engines
All reconditioned and rebuilt 740Li engines include a comprehensive 12-month, unlimited-mileage warranty.
- Covers internal mechanical failures (crank, rods, pistons, head)
- Includes turbocharger, HPFP, and timing chain components
- Excludes damage from improper installation or pre-existing vehicle faults
Engine Finders is a price comparison platform connecting you with UK-certified engine suppliers. Warranty terms are set by the supplying workshop, not Engine Finders.
Expert Tips for Choosing the Right Engine for Your BMW 7 Series 740Li
BMW 7 Series 740Li Engine Types Explained
- Reconditioned B58TU30A engines include twin-turbo components for 7 Series 740Li
- Remanufactured units address common turbo issues in 7 Series 740Li(2016-2022)
- Used engines must have verified xDrive system compatibility for G11/G12
- Rebuilt engines feature updated VANOS for improved twin-turbo efficiency
BMW 7 Series 740Li replacement Engine Cost in the UK
- Used B58TU30A engines cost £4,500-£5,200 for 7 Series 740Li(2016-2022)
- Reconditioned units range £6,200-£6,800 with twin-turbo components included
- Remanufactured engines £7,500-£8,200 with full xDrive system integration
- Engine Finders saves £1,200-£1,800 vs main dealer pricing for 7 Series 740Li
Finding the Right BMW 7 Series 740Li Engine
- Check VIN for B58TU30A engine code specific to7 Series 740Litwin-turbo
- Verify G11/G12 chassis compatibility for xDrive system integration
- Confirm software calibration matches7 Series 740Litwin-turbo requirements
- Don't confuse with standard 740i engines lacking twin-turbo components
BMW 7 Series 740Li petrol vs Diesel Engines
- 740Li uses B58TU30A petrol twin-turbo with xDrive all-wheel drive
- Diesel 740Ld xDrive has different EGR issues but no twin-turbo complexity
- Twin-turbo system adds £2,000-£2,500 to7 Series 740Li engine replacement cost
- ULEZ compliant for London due to advanced petrol efficiency in 740Li
Quality Assurance - Warranty
- 740Li engines tested for xDrive system communication protocols
- VANOS solenoids updated to twin-turbo-specific calibration settings
- 12-month warranty covers xDrive integration components for 740Li
Compare - Save on BMW 7 Series 740Li Engines
- Compare7 Series 740Litwin-turbo engines from multiple suppliers via quotes
- Verify xDrive system compatibility to avoid £2,500+ integration issues
- Choose suppliers who test B58TU30A with xDrive control units
- Request updated software mapping for optimal7 Series 740Litwin-turbo performance
BMW 7 Series 740Li Engine Works: How Experts Rebuild Engines
When your engine fails, BMW 7 Series 740Li 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 B58TU30A engine completely for the 7 Series 740Li, checking each component for wear patterns unique to twin-turbo operation. Special attention is given to cylinder walls and turbo housing for thermal cycling damage specific to high-boost duty cycles.
2. Block - Head Machining
Cylinder blocks undergo sonic testing for stress fractures in 7 Series 740Li engines. The B58TU30A heads are pressure tested and machined to BMW specifications (0.05mm tolerance) to ensure proper twin-turbo system efficiency and compression ratios.
3. Twin-Turbo-Specific Component Installation
Specialized twin-turbo components like intercooler and modified cooling systems are installed for 7 Series 740Licompatability. Updated VANOS units with twin-turbo-specific calibration ensure seamless integration with xDrive system operation.
4. Twin-Turbo - Intake System Rebuild
The B58TU30A twin-turbo is rebuilt with twin-turbo-specific boost mapping for 7 Series 740Li. Intercooler and intake components are tested for optimal thermal management during high-boost operation cycles.
5. Quality Testing - Calibration
Each7 Series 740Li engine runs on dyno for 2+ hours, testing twin-turbo system communication protocols. Software is calibrated specifically for xDrive integration and engine management system compatibility.
6. Final Assembly - Delivery Preparation
Engines are fitted with updated gaskets and seals rated for twin-turbo thermal cycling. Final quality check includes xDrive control unit communication verification and oil system compatibility with high-boost operation.