BMW X7 xDrive30d2018–present1 Engine Generation

BMW X7 xDrive30d Engine Replacement —Compare Prices &
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Name: BMW X7 xDrive30d UK Engine Enquiry Data 2025
Creator: BMWEngines.uk

Get quotes today from trusted UK BMW X7 specialists. The 3.0-litre B57 single-turbo inline-six diesel is BMW's most popular engine for the full-size luxury SUV — compare reconditioned, rebuilt and used engines with supply & fit available nationwide.

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BMW X7 xDrive30d Engines — from £1,500 to £13,000Engine code: B57D30O0 (B57D30A)

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100% Free
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Rebuilt
Used
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BMW X7 xDrive30d — Which Engine Does Your Car Actually Have?

One generation. One era. One guide to reliability, costs and what really matters.

Era Note

3.0L single-turbo inline-six diesel — 265 hp, 620 Nm. B57 family, timing chain issues "exceedingly rare"

Generation	Years	Engine Code	Reliability	Recon Cost (Guide)	Era Note
G07	2018–present	B57D30O0(B57D30A)		£4,000–£6,500[PLACEHOLDER]	3.0L single-turbo inline-six diesel — 265 hp, 620 Nm. B57 family, timing chain issues "exceedingly rare"

Why use this era map?

Every cost guide, reliability rating and engine code on this page is aligned to the data above. This keeps everything consistent and trustworthy.

Real UKCost Data
VerifiedReliability
ExpertInsights
Updated for2025

BMW X7 xDrive30d Engine Replacement Costs

Supply Only£4,000 – £6,500
Fitted (Indie)£6,000 – £8,500
Warranty12–24 months
Best ForMost owners — best cost/warranty balance

Engine Type	Supply Only	Fitted (Indie)	Warranty	Best For
Used Engine	£1,500 – £3,500	£2,500 – £5,000	1–6 months	Budget priority; lower-mileage donor
Reconditioned Engine	£4,000 – £6,500	£6,000 – £8,500	12–24 months	Most owners — best cost/warranty balance
Rebuilt Engine	£5,000 – £8,500	£7,000 – £10,500	12–24 months	Long-term ownership; 3+ year horizon
Main Dealer New	£9,000 – £13,000+	£11,000 – £15,000+	24–36 months	Insurance jobs, warranty claims

Labour estimate: Fitting an X7 xDrive30d engine typically takes 14–18 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer). The X7's size and complex emissions systems add labour time.

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Common Problems With BMW X7 xDrive30d Engines

1. EGR Cooler Coolant Leak(Global Recall)

Symptoms: White exhaust smoke, rough idling, coolant loss with no visible external leak, burning smell from engine bay, engine warning light, reduction in engine power
Typical Mileage: Any mileage — a manufacturing defect affects multiple BMW diesel models 2010–2022
Repair Cost: £0 (free under recall) / £600–£1,200 (out of warranty — EGR cooler replacement)
Replacement Cost: N/A — repair only (does not progress to engine replacement if addressed)
Urgency: Check — verify recall completion status immediately; coolant loss can cause serious engine damage and, in extreme cases, fire risk

Our recommendation:

The EGR cooler is one of the most prevalent problems with the B57 engine. A manufacturing defect can cause the EGR cooler to develop an internal coolant leak. The leaking coolant and recirculated exhaust gas may combine, potentially reducing engine power and creating a fire risk. BMW has issued multiple recalls affecting diesel vehicles globally over EGR cooler faults. Verify recall completion before buying any X7 xDrive30d — this is a free fix at the dealership.

Read the full EGR cooler failure guide /failures/egr-valve-cooler

1. EGR Cooler Coolant Leak(Global Recall)

Symptoms: White exhaust smoke, rough idling, coolant loss with no visible external leak, burning smell from engine bay, engine warning light, reduction in engine power
Typical Mileage: Any mileage — a manufacturing defect affects multiple BMW diesel models 2010–2022
Repair Cost: £0 (free under recall) / £600–£1,200 (out of warranty — EGR cooler replacement)
Replacement Cost: N/A — repair only (does not progress to engine replacement if addressed)
Urgency: Check — verify recall completion status immediately; coolant loss can cause serious engine damage and, in extreme cases, fire risk

Our recommendation:

Read the full EGR cooler failure guide /failures/egr-valve-cooler

2. Timing Chain Stretch(High-Mileage or Poorly Serviced Engines)

Symptoms: Rattling or slapping noise from the engine on cold start, metallic ticking, reduced power, rough idling, engine misfires
Typical Mileage: 100,000+ miles — "exceedingly rare" on well-maintained B57 engines, but can occur in high-mileage or poorly serviced examples
Repair Cost: £1,500–£3,500 (chain kit, tensioners and guides) — a complete timing chain replacement can cost £8,000–£12,000
Replacement Cost: £5,000–£10,000 (if chain snaps — full engine replacement)
Urgency: Immediate — if you hear rattle on cold start, book an inspection today

Our recommendation:

Unlike the infamous N47 diesel, the B57's timing chain is "notably robust and reliable" and issues such as timing chain stretch and guide failures are "exceedingly rare". However, in high-mileage or poorly serviced engines, timing chain stretch can still occur. BMW claims the timing chain is a "lifetime part" and does not service it, but regular oil changes and early attention to warning signs like rattling noises can help prevent costly engine damage. At the first sign of cold-start rattle, get the chain inspected immediately.

Read the full timing chain failure guide → /failures/b57-timing-chain/ [NEW FAILURE PAGE NEEDED] /failures/timing-chain-diagnosis-guide

3. DPF Clogging & Regeneration Issues

Symptoms: DPF warning light, loss of power, black smoke on acceleration, increased fuel consumption, "Drivetrain" warning message
Typical Mileage: Any mileage — short urban journeys accelerate the issue; a 2021 X7 diesel with only 11,339 km experienced DPF failure
Repair Cost: £300–£800 (forced DPF regeneration / sensor replacement) / £1,000–£2,500 (DPF replacement)
Replacement Cost: N/A — repair only (does not progress to engine replacement if addressed)
Urgency: Monitor — book inspection if warning appears

Our recommendation:

A 2021 BMW X7 diesel experienced power loss and emitted black smoke, with a DPF warning light indicating a failure to regenerate. The suspected cause was a faulty exhaust back pressure sensor, which can prevent proper DPF regeneration. Replacing the sensor and performing a forced DPF regeneration resolved the issue. If you primarily drive short distances, factor in regular motorway runs to allow passive DPF regenerations. If the warning appears, have the sensor and DPF system inspected.

Read the full DPF clogging guide /failures/dpf-blockage

4. Oil Leaks(Valve Cover & Oil Filter Housing Gaskets)

Symptoms: Burning oil smell from engine bay, visible oil residue around the valve cover or oil filter housing, oil spots under the car, low oil level warning
Typical Mileage: 60,000–100,000 miles — gaskets age and harden
Repair Cost: £400–£1,200 (gasket replacement — valve cover or oil filter housing)
Replacement Cost: N/A — repair only (does not progress to engine replacement if addressed)
Urgency: Monitor — book inspection if you notice oil spots or burning smell

Our recommendation:

Valve cover gaskets and oil filter housing gaskets are known leak points on both petrol and diesel X7 models. Because the X7 engine sits deep within the bay, small leaks can be hard to spot until smells or smoke appear. If you notice a burning smell or oil spots, have the gaskets inspected promptly. Catching leaks early prevents oil contamination of other components and more serious engine damage.

Read the full oil leak guide → /failures/b57-oil-leaks/ [NEW FAILURE PAGE NEEDED] /failures/n55-valve-cover-oil-leak

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X7 xDrive30d — Repair, Buy, or Replace?

Not every issue means a new engine.Here’s what can be repaired, when it makes sense, and what to check before you buy.

Can It Be Repaired?

Problem	Repairable?	Typical Cost	When It Makes Sense
EGR cooler coolant leak	Yes	£0 (recall) / £600 – £1,200	Free under recall; straightforward replacement out of warranty
Timing chain rattle (early detection)	Yes	£1,500 – £3,500	Preventative — catches the fault before catastrophic failure
Timing chain snapped	Usually No	Engine replacement	Piston-valve contact means full replacement required
DPF clogging / sensor failure	Yes	£300 – £800	Sensor replacement + forced regeneration — straightforward fix
Oil leaks (gaskets)	Yes	£400 – £1,200	Catch early to prevent oil contamination and engine damage

ProblemRepairable? · Typical Cost

EGR cooler coolant leak

Yes£0 (recall) / £600 – £1,200

Free under recall; straightforward replacement out of warranty

Timing chain rattle (early detection)

Yes£1,500 – £3,500

Preventative — catches the fault before catastrophic failure

Timing chain snapped

Usually NoEngine replacement

Piston-valve contact means full replacement required

DPF clogging / sensor failure

Yes£300 – £800

Sensor replacement + forced regeneration — straightforward fix

Oil leaks (gaskets)

Yes£400 – £1,200

Catch early to prevent oil contamination and engine damage

Buying This X7 xDrive30d? Check These First

Buy if:

Full service history with BMW-approved oil changes (BMW Longlife-04 spec)
Confirmed EGR recall completion — this affects BMW diesel engines globally
Evidence of regular motorway use (DPF health)
Remaining manufacturer warranty — these are complex luxury vehicles

Avoid if:

Cold-start rattle — this is a warning sign of timing chain tensioner wear (rare but documented)
No proof of EGR recall work — this is a free fix; lack of it suggests neglect
DPF warning lights or "Drivetrain" messages
Poor service history — the B57 is reliable but needs proper maintenance

Closing verdict

The X7 xDrive30d's B57 engine is one of BMW's finest modern diesels — a 3.0-litre single-turbo inline-six with 265 hp and 620 Nm that delivers effortless performance for a full-size luxury SUV. The B57 is "celebrated for its robust performance, impressive efficiency, and excellent reliability". Unlike the N47 and early N57 engines, timing chain issues are "exceedingly rare". However, EGR cooler recalls, DPF sensitivity, carbon buildup, and oil leaks are well-documented issues. Buy with full service history, confirmed recall work, and evidence of regular long-distance driving — and you'll have one of the most refined and capable luxury SUVs on the road.

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Buying Checklist

Before you buy a used BMW X7 xDrive30d (or before you commit to an engine replacement), check these:

1. Cold Start
Listen for rattling or slapping noise from the engine (timing chain warning)
2. EGR Recall
Verify EGR cooler recall completion — this is critical and affects BMW diesel engines globally
3. DPF Health
Check for DPF warning lights; short journeys are a red flag
4. Service History
Including the B57 engine and confirmed BMW-approved oil changes
5. Coolant Level
Check for frequent top-ups; inspect for EGR cooler leaks
6. Oil Leaks
Look for oil residue around the valve cover and oil filter housing
7. Engine Warning Light
Have codes been read? Look for EGR, DPF, or timing-related codes
8. MOT History
Check for emissions-related failures

Why this matters

A 10-minute check now can save you thousands later. The right X7 xDrive30d is a superb long-term car — the wrong one can be expensive fast.

Buying Checklist

Before you buy a used BMW X7 xDrive30d (or before you commit to an engine replacement), check these:

1
Cold Start
Listen for rattling or slapping noise from the engine (timing chain warning)
2
EGR Recall
Verify EGR cooler recall completion — this is critical and affects BMW diesel engines globally
3
DPF Health
Check for DPF warning lights; short journeys are a red flag
4
Service History
Including the B57 engine and confirmed BMW-approved oil changes
5
Coolant Level
Check for frequent top-ups; inspect for EGR cooler leaks
6
Oil Leaks
Look for oil residue around the valve cover and oil filter housing
7
Engine Warning Light
Have codes been read? Look for EGR, DPF, or timing-related codes
8
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 X7 xDrive30d pitfalls.

Engine Codes

This table's rows match Section 1B's Era Map exactly.

B57D30O0 (B57D30A)

Years: 2018–present
Power: 265 hp (195 kW) / 620 Nm
2025 Enquiries: —(pattern data)
Avg. Recon Cost: £4,000–£6,500[PLACEHOLDER]

Engine Code	Years	Power	2025 Enquiries	Avg. Recon Cost
B57D30O0 (B57D30A)	2018–present	265 hp (195 kW) / 620 Nm	—(pattern data)	£4,000–£6,500[PLACEHOLDER]

Technical SpecsB57D30O0

Displacement: 2,993 cc (3.0L)
Cylinders: 6-cylinder inline
Bore: 84 mm / Stroke: 90 mm
Compression Ratio: 16.5:1
Valvetrain: DOHC, 4 valves per cylinder, chain-driven
Fuel System: Common-rail direct injection
Turbocharger: Single turbo with variable geometry
Power: 195 kW (265 hp) @ 4,000 rpm
Torque: 620 Nm @ 2,000–2,500 rpm
0-62 mph: 7.0 seconds
Top Speed: 141 mph (227 km/h)
Fuel Economy: 8.4 l/100 km (33.6 mpg) combined

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Market Intelligence

Real data from thousands of X7 xDrive30d enquiries in 2025.

Most Common FailureEGR cooler coolant leaks

Subject to global BMW recalls affecting diesel engines 2010–2022

Average Enquiry Mileage

30,000–60,000

miles

[PATTERN DATA]

Average Replacement Cost

£4,500–£5,500

reconditioned, supply only

[PLACEHOLDER]

Most Requested Engine Code

B57D30O0 (B57D30A)

[PATTERN DATA]

Peak Enquiry Season

Winter

Cold starts expose timing chain and DPF issues

[PATTERN DATA]

Regional Demand

London: 22%
South East: 18%
North West: 12%
Other Regions: 48%

[PATTERN DATA]

Regional Demand Breakdown

22%London18%South East12%North West48%Other Regions

Frequently Asked Questions

A reconditioned X7 xDrive30d (B57) engine typically costs £4,000–£6,500 supply only. Fitting adds £2,000–£3,500 depending on location and workshop rates. A blown engine in a premium BMW can cost £9,000–£13,000. Main dealer new engines start from £9,000–£13,000+ supply only. Use our calculator for a figure specific to your car.

Yes — the B57 is widely regarded as one of BMW's most reliable diesel engines, "celebrated for its robust performance, impressive efficiency, and excellent reliability". Unlike the N47 and early N57 engines, timing chain issues are "exceedingly rare". However, EGR cooler coolant leaks (subject to global BMW recalls), DPF clogging from short journeys, carbon buildup, and oil leaks are well-documented issues.

The main known issues are: (1) EGR cooler coolant leaks — the most prevalent problem, subject to global BMW recalls affecting diesel vehicles 2010–2022, (2) Timing chain stretch — "exceedingly rare" on B57 but documented in high-mileage or poorly serviced examples, (3) DPF clogging — particularly on vehicles used for short urban journeys, and (4) Oil leaks from valve cover gaskets and oil filter housing.

Depends on vehicle value and condition. Against a well-kept £25,000–£45,000 X7, a £4,500–£6,500 recon is 10–25% of the car's value — worth it given the X7's strong retained values. The B57's robust reliability means that with proper maintenance, these engines can achieve very high mileages.

The X7 xDrive30d uses the B57D30O0 (also known as B57D30A) — a 3.0-litre single-turbo inline-six diesel producing 265 hp and 620 Nm of torque. The engine code is stamped on the cylinder block. Tell us your registration and we'll confirm it for free.

Unlike the infamous N47 diesel, the B57's timing chain is "notably robust and reliable" and issues such as timing chain stretch and guide failures are "exceedingly rare". BMW claims the timing chain is a "lifetime part" and does not service it, but regular oil changes and early attention to warning signs like rattling noises can help prevent costly engine damage. In high-mileage or poorly serviced engines, timing chain stretch can still occur.

Disclaimer: All prices are indicative UK market ranges based on historical quote data from our network of engine specialists.
Actual costs vary by variant, engine code, 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.

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BMW X7 xDrive30d Engine Replacement —Compare Prices &Get Quotes

BMW X7 xDrive30d — Which Engine Does Your Car Actually Have?

BMW X7 xDrive30d Engine Replacement Costs

Common Problems With BMW X7 xDrive30d Engines

1. EGR Cooler Coolant Leak(Global Recall)

2. Timing Chain Stretch(High-Mileage or Poorly Serviced Engines)

3. DPF Clogging & Regeneration Issues

4. Oil Leaks(Valve Cover & Oil Filter Housing Gaskets)

1. EGR Cooler Coolant Leak(Global Recall)

2. Timing Chain Stretch(High-Mileage or Poorly Serviced Engines)

3. DPF Clogging & Regeneration Issues

4. Oil Leaks(Valve Cover & Oil Filter Housing Gaskets)

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X7 xDrive30d — Repair, Buy, or Replace?

Can It Be Repaired?

Buying This X7 xDrive30d? Check These First

Buying Checklist

Buying Checklist

Engine Codes

Market Intelligence

Regional Demand Breakdown

Frequently Asked Questions

Why UK BMW X7 xDrive30d Owners Trust BMWEngines.uk

Trusted X7 xDrive30d Engine Suppliers

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UK Engine Replacement Services for X7 xDrive30d

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