BMW X7 30d Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK BMW X7 30d engine specialists. Compare prices on reconditioned, rebuilt and used engines for your diesel X7 - supply & fit available nationwide.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £2,800 to £4,500
Used from £1,200 · Reconditioned from £2,200 · Common codes: B57D30, B57D30A, B57D30O0
From £1,200
Tested, bare/short engine
From £2,200
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best BMW X7 30d Replacement Engineto Finding the Best BMW X7 30d Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryBMW X7 30d - Engine History & Specs at a Glance
The BMW X7 30d arrived with the G07 platform in 2018 as the entry-level diesel for BMW's flagship seven-seat SUV. Powered by the B57D30 3.0-litre straight-six diesel, it has remained the core diesel choice across both pre-LCI and LCI generations - always delivering effortless torque, strong motorway economy, and the refinement expected of a £75,000+ luxury SUV.
Variant HistoryBMW X7 30d - Engine History & Specs at a Glance
The BMW X7 30d arrived with the G07 platform in 2018 as the entry-level diesel for BMW's flagship seven-seat SUV. Powered by the B57D30 3.0-litre straight-six diesel, it has remained the core diesel choice across both pre-LCI and LCI generations - always delivering effortless torque, strong motorway economy, and the refinement expected of a £75,000+ luxury SUV.
BMW X7 30d
Fuel TypeDiesel (with 48V MHEV on LCI models)
Engine Size3.0L (2,993cc)
Power Output265hp (195kW) at 4,000rpmEngine History Timeline
BMW X7 30d (G07) launches with the B57D30A 3.0-litre single-turbo diesel engine producing 265hp and 620Nm of torque
xDrive45e plug-in hybrid joins the range; 30d remains the core diesel offering with unchanged engine specification
G07 LCI facelift introduces the B57D30O0 engine with 48V mild-hybrid assistance producing 265hp and 620Nm with enhanced efficiency
Current production continues with the B57D30O0 engine in LCI xDrive30d variants
Key Specs Snapshot
Fuel TypeDiesel (with 48V MHEV on LCI models)Engine Size3.0L (2,993cc)Power Output265hp (195kW) at 4,000rpmTorque620Nm (457lb-ft) at 1,500-2,500rpmCombined Fuel Economy33.6-43.5 MPGYears Produced2018-presentEvery engine fitted to the BMW X7 30d is covered below, with UK rebuilt pricing and known failure points.
BMW X7 30d Engine Codes - Specifications & Replacement CostBMW X7 30d Engine Codes - Specifications & Replacement Cost
3.0L Diesel (2018-2022)
Power Output265hp (195kW) at 4,000rpmTorque620Nm at 1,500-2,500rpmYears Fitted2018-2022 (G07 pre-LCI)
Compatible Trim Levels
- xDrive30d
- xDrive30d M Sport
- xDrive30d Excellence
- xDrive30d Design Pure Excellence
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,200-£2,000
Reconditioned
Addressed known issues, tested
£2,200-£3,500
Rebuilt
Full teardown, upgraded internals
£2,800-£4,200
Common Failure
The B57D30A is generally robust but can suffer from timing chain tensioner wear (typically 60,000-90,000 miles), EGR cooler cracking allowing coolant to leak into the intake system, and DPF blockage in vehicles used primarily for short urban journeys. Oil leaks from the valve cover gasket and oil filter housing have also been reported.
The BMW X7 30d is powered by the B57 3.0-litre straight-six diesel - one of BMW's most acclaimed modern diesel powerplants. However, like any complex luxury vehicle, the X7 30d is not without its share of common problems. Every rebuilt B57D30 engine supplied through EnginesMarket includes upgraded components addressing the original failure points - plus a minimum 12-month unlimited mileage warranty.
Why the BMW X7 30d B57D30 Rattles on Start-Up
Affected Vehicles
BMW X7 30d (B57D30A / B57D30O0, 2018-present)
Typical Failure Mileage
60,000-90,000 miles
Root Cause
While the B57 engine is more reliable than earlier diesel engines like the N47, timing chain stretch can still occur in high-mileage or poorly serviced engines. The timing chain synchronises the rotation of the crankshaft and camshaft; over time, it can stretch or wear out, leading to a rattling noise from the engine, particularly during startup. If not addressed, a worn timing chain can cause severe engine damage.
Why It Happens
While the B57 engine is more reliable than earlier diesel engines like the N47, timing chain stretch can still occur in high-mileage or poorly serviced engines. The timing chain synchronises the rotation of the crankshaft and camshaft; over time, it can stretch or wear out, leading to a rattling noise from the engine, particularly during startup. If not addressed, a worn timing chain can cause severe engine damage.
Dealer (parts + labour)
£1,800-£2,600
Specialist (parts + labour)
£1,200-£1,750
What it involves
Replace timing chain, tensioner, guides, and sprockets
Suitability
60,000-90,000 miles. Only viable if chain has not jumped or snapped
1 - 2 daysDealer (parts + labour)
£8,500-£12,000
Specialist (parts + labour)
£4,800-£7,800
What it involves
Supply & fit fully rebuilt B57D30 engine with upgraded timing components, bench tested, 12-month warranty
Suitability
Required if chain has snapped causing valve/piston damage
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Preventative - timing chain & tensioner replacement Minor | £1,800-£2,600 | £1,200-£1,750 | Replace timing chain, tensioner, guides, and sprockets | 60,000-90,000 miles. Only viable if chain has not jumped or snapped | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine (catastrophic failure) Best Value | £8,500-£12,000 | £4,800-£7,800 | Supply & fit fully rebuilt B57D30 engine with upgraded timing components, bench tested, 12-month warranty | Required if chain has snapped causing valve/piston damage | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical BMW X7 30d in the UK is worth between £35,000 and £55,000 depending on generation, condition, and mileage. With a full rebuilt engine costing £4,800-£7,800 fitted, replacement cost is typically small relative to vehicle value - making engine replacement a financially viable option for most X7 30d owners.
Our Recommendation
Our Recommendation
If your B57-powered X7 30d develops a cold-start rattle, act immediately - preventative chain replacement saves thousands. Once the chain snaps, the engine is beyond economic repair. On an X7 30d, a rebuilt engine with upgraded components represents better value than dealer replacement. Always factor the 12-month warranty into your replacement decision.
Don't Let Engine Failure Write Off Your BMW X7 30d
A failed B57D30 engine doesn't have to mean the end of the road for your X7 30d. Whether you're facing timing chain stretch, EGR cooler failure, DPF blockage, or oil leaks, EnginesMarket connects you with trusted UK BMW specialists who supply rebuilt B57D30 engines with upgraded components specifically designed to address the original failure points. Every engine comes with a minimum 12-month unlimited mileage warranty, nationwide delivery, and supply & fit options across the UK. Compare prices today - and get back on the road without paying the main dealer premium.
Compare rebuilt B57D30 BMW X7 30d engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
"All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific BMW X7 30d. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
BMW X7 30d Engine ReplacementFrequently Asked Questions
Question 1How much does a BMW X7 30d engine replacement cost in the UK-
A full BMW X7 30d engine replacement typically costs £2,800-£4,500 supply-only for a rebuilt B57D30 unit, or £4,800-£7,800 fitted by a specialist.
- Used B57D30 engines: £1,200-£2,800 depending on mileage and condition
- Reconditioned units: £2,200-£4,000
- Professional fitting adds £1,200-£2,000 to the engine cost
Question 2Is the BMW X7 30d B57D30 engine reliable-
The B57D30 is one of BMW's most acclaimed diesel powerplants, celebrated for its robust performance, impressive efficiency, and excellent reliability. It replaces the well-regarded N57 engine and uses cutting-edge technology including a lightweight aluminium block and advanced common-rail direct fuel injection. However, it is not without its issues - EGR cooler leaks, timing chain stretch on high-mileage examples, DPF blockage from urban driving, and oil leaks from the valve cover gasket have been reported. Regular maintenance and proactive servicing are essential.
-> Get quotes for BMW X7 30d B57D30 engine repairs and replacementQuestion 3What are the signs of timing chain failure in a BMW X7 30d B57D30-
The most common warning signs of timing chain issues in the X7 30d are:
- Rattling noise from the engine, particularly during cold start
- Rough idling and engine misfires
- Warning lights on the dashboard
- If ignored, a worn timing chain can cause severe engine damage
Question 4Is it worth replacing the engine on a BMW X7 30d-
For an X7 30d worth £35,000-£55,000, a £4,800-£7,800 rebuilt engine is typically good value - replacement cost is small relative to vehicle value.
- Compare replacement cost against vehicle value - replacement is viable up to approximately 70% of the car's value
- Given the vehicle's high value, specialist rebuild with warranty is the safest option
- Always factor the 12-month warranty into your replacement decision
Question 5What causes the BMW X7 30d EGR cooler to fail-
EGR cooler failure in the X7 30d is typically caused by internal cracking due to thermal stress, allowing coolant to leak into the intake system.
- Symptoms include white exhaust smoke, rough idling, and coolant loss
- BMW issued recalls for EGR cooler defects on certain models
- Replacement at a specialist costs £550-£850
Question 6Can I replace my BMW X7 30d engine with a different engine-
Engine swaps to a different size or type are technically complex and rarely cost-effective for the X7 30d:
- The B57D30A and B57D30O0 are the only engines fitted to the 30d from the factory - stick to like-for-like replacement
- Swapping to a 40d (twin-turbo) requires different ECU, wiring, and turbo system
- Swapping between pre-LCI and LCI (B57D30A to B57D30O0) requires 48V system integration and software adaptation
- Insurance must be notified of any non-standard engine swap
- Our marketplace only recommends like-for-like code-matching for warranty coverage
Why Choose UsCompare BMW X7 30dEngine PricesToday
50+ B57D30 engines supplied through our network
12-Month Warranty on every rebuilt BMW X7 30d engine
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Comparing quotes for your BMW X7 30d is free, no-obligation, and specific to your exact engine code and vehicle. Enter your registration above - our trusted UK network of BMW G07 specialists will send you tailored prices for used, reconditioned, and rebuilt B57D30A and B57D30O0 engines with warranty. Get back on the road without paying the dealer premium.
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