BMW 7 Series 750i Engine Replacement — Compare Prices & Get Quotes
Get quotes today from trusted UK BMW 750i specialists. Compare reconditioned, rebuilt and used V8 and V12 engines - from the classic M73 to the modern N63 - supply & fit available nationwide.
The 750i THROUGH TIME - Era Map
Four generations. Four eras. One guide to reliability, costs and what really matters.
Era Note
5.4L V12 - 326 bhp; smooth and robust; timing chain guides and coolant system are the primary watch items
Why use this era map?
This table is the single source every other section on this page matches - Sections 2, 4 and 6 reference it rather than restating conflicting figures.
BMW 7 Series 750i Engine Replacement Costs
Figures above reflect current 750i replacement costs. The N63 variants typically sit at the higher end of the range. See the Era Map above for generation-specific pricing.
Labour estimate: Fitting a 750i engine typically takes 16–22 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer).
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7 Series 750i - Repair, Buy, or Replace?
Every 320d has a story. Make the right call with clear data, real-world costs, and honest guidance from UK specialists.
Can It Be Repaired?
Buying This 750i? Check These First
Buy If
- Post-2015 G11/G12 with the N63TU2/TU3 (most refined N63 versions)
- Post-2012 F01/F02 with N63TU (improved over early N63)
- Documented timing chain history on any N63-engined car
- Valve stem seals replaced on N62 or N63 (if high-mileage)
- Full service history with frequent oil changes (critical for N63 longevity)
- E38 V12 with documented maintenance (classic appeal; parts availability is a consideration)
Avoid If
- Pre-2012 N63 with cold-start rattle and no chain history - assume it's overdue
- No service history - the N63 is unforgiving of neglect
- Excessive oil consumption or blue smoke - valve stem seals likely failing
- Overheating history or unexplained coolant loss - cooling system issues may have caused damage
- Any N63 with a history of catastrophic failure - walk away
Closing Verdict
The 750i is BMW's flagship V8 (and historically V12) 7 Series - offering effortless luxury performance. The E38 V12 is a classic with genuine character but ageing maintenance demands. The N62 (E65/E66) is a capable V8 with valve stem seal and cooling system vulnerabilities. The early N63 (F01/F02 pre-2012) is the high-risk choice - timing chain stretch, oil consumption, and injector failure are common. Later N63TU and N63TU2/TU3 versions (2012+) are significantly improved, with the G11/G12 LCI (2019+) offering the best reliability of the N63 family. However, all N63s require obsessive maintenance - frequent oil changes and careful monitoring. With typical 7 Series values ranging from £5,000 (E65) to £30,000+ (G12), an engine replacement is a major financial commitment. A post-2015 G11/G12 with documented history is the safest choice.
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Buying Checklist
Before you buy a used BMW 7 Series 750i (or before you commit to an engine replacement), check these:
Cold Start
Listen for rattling (N63 timing chain warning) - see the map above
Service History
Including which engine era (M73, N62, N63O0/O1, N63TU2/TU3) and oil-change frequency
Oil Consumption
Ask about oil top-up frequency; excessive consumption may indicate valve stem seal wear
Blue Smoke
Check on startup; any blue smoke indicates oil burning
Coolant Level
Check reservoir when cold; any low or loss may indicate cooling system leaks
Turbo Health
Test acceleration; any lag, whistling, or hesitation?
Engine Warning Light
Have codes read; unresolved issues may indicate injector or timing problems
MOT History
Check for emissions-related failures
Buy smart. Drive with confidence.
A few checks today can save thousands tomorrow. Use this checklist to avoid the most common 320d pitfalls.
BMW 320d Engine Codes
This table's rows match Section 1B's Era Map exactly.
M73B54 (V12)
Technical Specs
M73B54 - E38 generation→ Compare 750i engine prices for your 7 Series
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Market Intelligence
Most Common Failure
N63 timing chain stretch and oil consumption (F01/F02)
the defining issues of the modern 750i
Average Enquiry Mileage
60,000
–90,000 miles
[PATTERN DATA]
Average Replacement Cost
£6,500
–£8,500 reconditioned, supply only
[PLACEHOLDER]
Most Requested Engine Code
N63B44O0 / N63B44T3
[PATTERN DATA]
Peak Enquiry Season
Winter
cold starts expose timing chain wear
[PATTERN DATA]
Regional Demand
PATTERN DATA
Regional Demand Breakdown
BMW 320d - Frequently Asked Questions
All prices are indicative UK market ranges based on historical quote data from our network of engine specialists. Actual costs vary by variant, engine condition, damage severity and workshop location. Use our free comparison tool to get tailored quotes. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited-mileage warranty - always confirm terms with your chosen supplier.
Why UK BMW 7 Series 750i Owners Trust BMWEngines.uk
Trusted 750i Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real 7 Series 750i owners, as part of the Engine Finders network, across every generation - M73, N62, N63 and N63TU - covering the E38, E65, F01 and G11/G12 chassis.
Compare 750i Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit. We cover the 4.4L and 5.4L V8 and V12 engines specifically, with specialists who understand the N63 timing chain vulnerabilities, valve stem seal issues, and the improved N63TU design.
UK Engine Replacement Services for 750i
supply-only or full supply & fit available nationwide, covering every generation of this badge since 1994, with a 12-month warranty as standard across our network.
Find the best BMW 7 Series 750i engine replacement UK drivers rely on. Compare prices from trusted specialists on EnginesMarket today and get your 7 Series back on the road with confidence.
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No hidden fees
No Obligation
Get quotes with zero pressure
UK Specialists
20+ vetted experts
12-Month Warranty
As standard
Nationwide Delivery
Supply & fit available