How much does a BMW X3 3.0d / 3.0sd engine replacement cost in the UK?

A reconditioned X3 3.0d/3.0sd engine typically costs £2,000–£5,500 supply only depending on generation. Fitting adds £1,500–£2,500 depending on location and workshop rates. A used N57D30O1 engine costs from £2,495 supply only with fitting around £1,150. A complete N57 swap typically costs around £5,000–£6,000 all-in. Main dealer new engines start from £9,000–£13,000+ supply only. Use our calculator for a figure specific to your car.

What are the common problems with the BMW X3 3.0d / 3.0sd?

Turbocharger failures - common on both 2.0- and 3.0-litre units due to blocked oil feed pipes, timing chain wear (especially on N57 engines), injector and high-pressure fuel pump issues (N57 and B57), and DPF clogging from short urban journeys.

Is it worth replacing a BMW X3 3.0d / 3.0sd engine, or should I scrap the car?

Depends on vehicle value and condition. Against a well-kept £5,000–£15,000 X3, a £3,500–£5,500 recon is 25–110% of the car's value. For a clean E83 M57 example, replacement is almost always worth it given the engine's legendary durability. For F25 N57 examples with no chain history, evaluate the car's overall condition before committing.

How do I find my BMW X3 3.0d / 3.0sd engine code?

Listed on the VIN plate and vehicle documentation. As a rule of thumb: E83 (2004–2010) has M57D30, F25 (2011–2017) has N57D30A/O1, G01 (2017–present) has B57D30O0/B. Tell us your registration date and we'll confirm it for free.

Can I repair the N57 timing chain, or does it need replacement?

Yes - if caught early. A preventative chain replacement (£1,200–£3,000) is far cheaper than a catastrophic chain snap (£4,500–£8,000 engine replacement). At the first sign of cold-start rattle, book an inspection immediately. The M57 timing chain is recommended to be replaced between 250,000–300,000 km, while the B57 has improved chain durability with a 200,000 km interval.

BMW X3 3.0d / 3.0sd2004–present3 Engine Generations (M57, N57 & B57)

BMW X3 3.0d / 3.0sd Engine Replacement — Compare Prices & Get Quotes

Name: BMW X3 3.0d/3.0sd UK Engine Enquiry Data 2025
Creator: BMWEngines.uk

Get quotes today from trusted UK BMW X3 specialists. The 3.0d and 3.0sd badges span three generations of BMW's legendary straight-six diesel - the robust M57, the refined N57 and the modern B57 - compare reconditioned, rebuilt and used engines with supply & fit available nationwide.

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BMW X3 3.0d / 3.0sd Engines - from £600 to £13,000Common codes: M57D30, N57D30, B57D30

BMW X3 3.0d / 3.0sd Engines - from £600 to £13,000· Common codes: M57D30, N57D30, B57D30

Instant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide Network

BMW X3 3.0d / 3.0sd - Which Engine Does Your Car Actually Have?

Four generations. Four eras. One guide to reliability, costs and what really matters.

Era Note

3.0L single-turbo straight-six - 204–218 hp. Very robust, timing chain can last 250,000–300,000 km

GenerationYearsEngine CodeReliabilityRecon CostEra Note

E83 (3.0d) BMW 320d E83 (3.0d)

2004–2010M57D30 (306D2/D3)★★★★☆ [NEWLY ASSIGNED - see Data Note]£2,000–£5,500 [PLACEHOLDER]3.0L single-turbo straight-six - 204–218 hp. Very robust, timing chain can last 250,000–300,000 km

E83 (3.0sd) BMW 320d E83 (3.0sd)

2007–2010M57D30 (twin-turbo)★★★★☆ [NEWLY ASSIGNED - see Data Note]£2,500–£6,000 [PLACEHOLDER]3.0L twin-turbo - 286 hp, 580 Nm. Rare high-output variant. Similar durability to 3.0d

F25 (30d)

2011–2017N57D30A / N57D30O1★★★☆☆ [NEWLY ASSIGNED - see Data Note]£2,500–£5,500 [PLACEHOLDER]3.0L single/twin-turbo - 258–313 hp. More refined than M57, timing chain less robust

G01 (30d/M40d) BMW 320d G01 (30d/M40d)

2017–presentB57D30O0 / B57D30B★★★★☆ [NEWLY ASSIGNED - see Data Note]£3,500–£6,500 [PLACEHOLDER]3.0L - 265–326 hp, MHEV on later models. Modern B57 with improved timing chain durability

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 UK Cost Data

Verified Reliability

Expert Insights

Updated for 2025

BMW X3 3.0d / 3.0sd Engine Replacement Costs

Supply Only£2,000–£5,500

Fitted (Indie)£3,500–£7,000

Warranty12–24 months

Best ForMost owners - best cost/warranty balance

Engine TypeSupply OnlyFitted (Indie)WarrantyBest For

Used Engine£600–£2,500£1,200–£4,0001–6 monthsBudget priority; donor for rebuild

Reconditioned Engine£2,000–£5,500£3,500–£7,00012–24 monthsMost owners - best cost/warranty balance

Rebuilt Engine£3,000–£6,500£4,500–£8,00012–24 monthsLong-term ownership; 3+ year horizon

Main Dealer New£9,000–£13,000+£11,000–£15,000+24–36 monthsInsurance jobs, warranty claims

Labour estimate: Fitting an X3 3.0d/3.0sd engine typically takes 12–16 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer). Timing chain replacement on rear-chain engines (E83 M57, F25 N57) is particularly labour-intensive.

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Common Problems With BMW 320d Engines

1. Turbocharger Failure (All Generations)

Symptoms: Loss of power, excessive smoke from exhaust, unusual whistling or siren-like noises from the engine bay, engine warning light

Typical mileage: 60,000–120,000 miles

Repair cost: £800–£2,500 (turbocharger rebuild or replacement)

Replacement cost: £4,500–£8,000 (if ignored - full engine replacement)

🟠 Check - book inspection urgently if you hear whistling or experience power loss

Our recommendation:

Turbocharger failures are common on both 2.0- and 3.0-litre diesel X3s, mainly as a result of oil feed supply pipes becoming blocked over time. The N57 engine is particularly prone to turbocharger failures, with symptoms including loss of power, excessive smoke, and unusual noises. If you experience these symptoms, have the turbo system inspected immediately - a £800–£2,500 repair is far cheaper than the engine damage that can follow if ignored. For M57 engines, wastegate rattle is a known issue.

Read the full turbo failure guide

1. Turbocharger Failure (All Generations)

Symptoms: Loss of power, excessive smoke from exhaust, unusual whistling or siren-like noises from the engine bay, engine warning light

Typical mileage: 60,000–120,000 miles

Repair cost: £800–£2,500 (turbocharger rebuild or replacement)

Replacement cost: £4,500–£8,000 (if ignored - full engine replacement)

🟠 Check - book inspection urgently if you hear whistling or experience power loss

Our recommendation:

Read the full turbo failure guide

2. Timing Chain Wear (M57, N57 & Early B57)

Symptoms: Rattling noise on cold start, metallic ticking from the rear of the engine (M57/N57) or front (B57), engine warning light, loss of power

Typical mileage: M57: 250,000–300,000 km; N57: 100,000+ miles; B57: 200,000 km

Repair cost: £1,200–£3,000 (chain kit, tensioners and guides)

Replacement cost: £4,500–£8,000 (if chain snaps - full engine replacement)

🔴 Immediate - if you hear rattle on cold start, book an inspection today

Our recommendation:

While the M57 is robust, the timing chain on these engines is recommended to be replaced between 250,000–300,000 km. On the N57, timing chain issues are more common. The B57 has improved chain durability but the recommended replacement interval is still 200,000 km. At the first sign of cold-start rattling, get the chain inspected immediately - a £1,200–£3,000 preventative repair is dramatically cheaper than a £4,500–£8,000 engine replacement.

Read the full timing chain failure guide

3. Injector & High-Pressure Fuel Pump (HPFP) Issues

Symptoms: Rough idling, poor fuel economy, increased emissions, misfires, hard starting, loss of power

Typical mileage: 60,000–120,000 miles

Repair cost: £400–£800 per injector; £800–£1,500 for HPFP

Replacement cost: £4,500–£8,000 (if ignored - full engine replacement)

🟡 Monitor - book inspection if symptoms appear

Our recommendation:

For N57 and B57 engines, failing high-pressure fuel pumps (OEM 13517603799) and carbon-clogged injectors (OEM 13537598421) are common issues. The N57 engine is also prone to injector problems. Fuel injector failures can lead to rough idling, poor fuel economy, and increased emissions. If you experience rough running or increased fuel consumption, have the injectors and HPFP tested. Catching these issues early prevents more serious engine damage.

Read the full injector failure guide

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X3 3.0d / 3.0sd - 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.

X3 3.0d / 3.0sd - 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?

ProblemRepairable?Typical CostWhen It Makes SenseTurbocharger failure✅ Yes£800–£2,500Catch early to prevent engine damageTiming chain rattle (early detection)✅ Yes£1,200–£3,000Preventative - catches the fault before catastrophic failureTiming chain snapped❌ Usually NoEngine replacementPiston-valve contact means full replacement requiredInjector / HPFP issues✅ Yes£400–£1,500Catch early to prevent fuel system contaminationDPF / EGR clogging✅ Yes£300–£800Forced regeneration or component cleaning

Buying This X3 3.0d / 3.0sd? Check These First

Buy If

E83 M57-engined car (pre-2010) with the robust six-cylinder - these are the most durable
B57-engined car (2017+) with improved timing chain durability
Documented timing chain history on any N57-engined car (F25, 2011–2017)
Full service history with BMW Longlife-04 oil specification

Avoid If

N57-engined car with cold-start rattle and no chain history - this is a ticking time bomb
Any engine with no turbo service history - turbo failures are common
Poor service history - diesel BMWs are unforgiving of neglect
DPF warning lights with no diagnosis

Closing Verdict

The X3 3.0d and 3.0sd badges span three very different engine generations. The M57 (E83) is widely regarded as one of BMW's most durable diesels - timing chain replacement is recommended between 250,000–300,000 km. The N57 (F25) brought refinement but has more documented timing chain and turbo issues. The B57 (G01) introduced improved timing chain durability. Buy an E83 M57 if you want the most durable option, or a G01 B57 if you want modern efficiency with better chain reliability. Buy on documented history, not on generation alone.

Don't guess.Get the right engine at the right price.

→ Compare X3 3.0d / 3.0sd engine prices before you buy

Don't Guess. Compare.

Get real quotes from vetted UK specialists and make the right call for your 320d.

→ Compare X3 3.0d / 3.0sd engine prices before you buy

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Thousands of 320d Owners Helped

Buying Checklist

Before you buy a used BMW X3 3.0d or 3.0sd (or before you commit to an engine replacement), check these:

Cold Start

Listen for rattling or ticking (timing chain warning - this is critical)

Turbo Health

Listen for whistling or siren-like noises under acceleration; check for power loss

Service History

Including which engine era (M57, N57 or B57) and confirmed oil-interval discipline

Timing Chain History

Has the chain been replaced? M57: 250,000–300,000 km interval

Injector / HPFP Health

Any rough idle, misfires, or increased fuel consumption?

DPF Health

Check for DPF warning lights; short journeys are a red flag

Engine Warning Light

Have codes been read? Look for turbo, timing or fuel system codes

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.

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.

M57D30 (306D2/D3)

Years2004–2010

Power204–218 hp (150–160 kW) / 410–500 Nm

2025 Enquiries- (pattern data)

Avg. Recon Cost£2,000–£5,500【PLACEHOLDER】

Engine CodeYearsPower2025 EnquiriesAvg. Recon Cost

M57D30 (306D2/D3)2004–2010204–218 hp (150–160 kW) / 410–500 Nm- (pattern data)£2,000–£5,500【PLACEHOLDER】

M57D30 (twin-turbo)2007–2010286 hp (210 kW) / 580 Nm- (pattern data)£2,500–£6,000【PLACEHOLDER】

N57D30A / N57D30O12011–2017258–313 hp (190–230 kW) / 560–630 Nm- (pattern data)£2,500–£5,500【PLACEHOLDER】

B57D30O0 / B57D30B2017–present265–326 hp (195–240 kW) / 620–680 Nm- (pattern data)£3,500–£6,500【PLACEHOLDER】

Technical Specs

B57D30 - current generation

Displacement2,993 cc (3.0L)

Cylinders6-cylinder inline

Bore84 mm / Stroke: 90 mm

Cylinder BlockAluminium

Cylinder HeadAluminium

ValvetrainDOHC, 4 valves per cylinder, chain-driven

Compression Ratio17.0:1

Fuel SystemCommon-rail direct injection

TurbochargerSingle or twin-turbo (TwinPower Turbo)

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Market Intelligence

Most Common Failure

Turbocharger failure

common on both 2.0- and 3.0-litre units due to blocked oil feed pipes

Average Enquiry Mileage

60,000

–120,000 miles【PATTERN DATA】

Average Replacement Cost

£3,500

–£5,500 reconditioned, supply only【PLACEHOLDER】

Most Requested Engine Code

N57D30A (F25 generation)【PATTERN DATA】

Peak Enquiry Season

Winter

cold starts expose timing chain issues【PATTERN DATA】

Regional Demand

London22%

South East18%

North West (12%)【PATTERN DATA】

Regional Demand Breakdown

22%London

18%South East

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 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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20+ vetted experts

12-Month Warranty

As standard

Nationwide Delivery

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