Crankshaft Repair Cost UK 2026 - Replacement vs Engine Swap

About this data · our methodology

This guide is based on crankshaft repair and engine replacement pricing data derived from supplier quotes submitted through our network, specialist interviews, and real customer submissions [EM-QUOTE]. Our platform connects vehicle owners with 100+ UK-based engine specialists, and this data reflects actual quoted market rates.

[EM-QUOTE]Derived from supplier quotes & interviews

[EM-SURVEY]Post-sale customer survey results

[THIRD-PARTY]External data from named industry sources

[INDUSTRY ESTIMATE]Informed estimate where no proprietary data exists

Review cycle: annually · next full review: January 2027 · prices are reviewed quarterly.

The short answer

What does crankshaft repair cost in the UK-

Crankshaft repair costs range from £800 to £5,000+ depending on the extent of damage. Bearing replacement costs £800-£1,500, crank machining (regrind) costs £1,200-£2,000, and complete crank replacement costs £2,500-£5,000+. However, if the crank is damaged, engine replacement (£2,700-£10,000+) is usually more economical.

Bearing replacement:£800-£1,500 - early diagnosis

Crank machining:£1,200-£2,000 - scored but not cracked

Crank replacement:£2,500-£5,000+ - cracked or severely damaged

Engine replacement:£2,700-£10,000+ - usually most cost-effective

[EM-QUOTE] based on supplier quotes and specialist interviews.

Signs of crankshaft failure

How to spot crankshaft problems

Crankshaft failure is a worst-case scenario. Here's what to look for - and what to do.

Symptom	What It Means	Urgency	Action
Deep knocking noise	Rhythmic knock that increases with revs - bearing failure	⚠️⚠️⚠️ CRITICAL	Stop driving immediately
Low oil pressure warning	Oil pump failure or bearing clearance too large	⚠️⚠️⚠️ CRITICAL	Stop driving immediately
Metal particles in oil	Bearing material or crank material in oil	⚠️⚠️⚠️ CRITICAL	Stop driving immediately
Excessive engine vibration	Crank out of balance - bearing wear	⚠️⚠️⚠️ CRITICAL	Stop driving immediately
Engine stalls	Crank seized or bearings seized	⚠️⚠️⚠️ CRITICAL	Stop driving immediately
Oil pressure light	Low oil pressure - early warning	⚠️⚠️ HIGH	Stop driving immediately
Sudden engine failure	Crank snapped - catastrophic failure	⚠️⚠️⚠️ CRITICAL	Engine is scrap - replacement needed

⚠️ The ticking clock:

A knocking crank is a ticking time bomb. Continuing to drive will: spin a bearing → weld the bearing to the crank → snap the connecting rod → window the block → destroy the engine. Early diagnosis costs £800-£1,500. Catastrophic failure costs £2,700-£10,000+.

Repair types - understanding your options

Your options explained

Bearing replacement

£800-£1,500

Engine removed, sump taken off, bearings replaced. Crank journals inspected but not machined. ✅ Viable - if caught early and crank journals are not damaged.

Crankshaft machining (regrind)

£1,200-£2,000

Crank removed and ground to a smaller size; oversize bearings fitted. ✅ Viable - if crank is not cracked or severely damaged.

Complete crankshaft replacement

£2,500-£5,000+

Old crank removed, replaced with new or reconditioned crank. ⚠️ Marginal - often more cost-effective to replace the entire engine.

Engine replacement

£2,700-£10,000+

Engine removed and replaced with used, reconditioned, or remanufactured engine. ✅ Usually the most cost-effective - if the crank is damaged.

Vehicle scrapping

£0-£1,000 (you receive money)

Vehicle sold for scrap or parts. ✅ Often the most economical - for vehicles under £5,000-£8,000.

Affected engines

Which engines are most at risk

Some engines have known crankshaft failure issues. Here are the highest-risk engines.

Manufacturer	Engine	Affected Years	Risk Level	Typical Failure
Land Rover	306DT 3.0 TDV6	2005-2016	⚠️⚠️⚠️⚠️⚠️ VERY HIGH	Crankshaft bearing failure - catastrophic. Often at 80,000-120,000 miles.
Land Rover	204DTD Ingenium 2.0	2015-2020	⚠️⚠️⚠️⚠️ High	Crankshaft failure - common.
BMW	N57 3.0 diesel	2008-2016	⚠️⚠️⚠️⚠️ High	Crankshaft bearing failure - oil pump issues.
BMW	N47 2.0 diesel	2007-2015	⚠️⚠️⚠️ Medium-High	Timing chain failure can lead to crank damage.
Ford	2.0 EcoBlue	2016-2020	⚠️⚠️⚠️ Medium-High	Crankshaft bearing failure - oil pump drive belt issues.
Ford	2.2 Duratorq	2006-2016	⚠️⚠️⚠️ Medium-High	Crankshaft failure - less common but known.
Mercedes	OM651 2.1 diesel	2008-2016	⚠️⚠️ Medium	Injector seal failure can cause crank damage.
Audi / VW	EA189 2.0 TDI	2008-2015	⚠️⚠️ Medium	Less common - but possible.

⚠️ Why Land Rover TDV6 is the highest risk:

The Land Rover 306DT 3.0 TDV6 has a known issue with crankshaft bearing failure. The oil pump is inadequate, and the bearings can fail at 80,000-120,000 miles. When they fail: knocking starts → bearing spins → connecting rod snaps → rod exits the block (windowed block) → engine is scrap.

Cost by vehicle type

Crankshaft repair cost by vehicle segment

[EM-QUOTE] These figures are derived from supplier quotes submitted through our platform. Prices are ex VAT and assume independent specialist labour. Main dealer costs are typically 40-60% higher.

Vehicle Segment	Bearing Replacement	Crank Machining	Crank Replacement	Engine Replacement
Compact car	£800-£1,200	£1,200-£1,600	£2,500-£3,500	£2,700-£4,500
Family car (FWD)	£900-£1,400	£1,300-£1,800	£2,800-£4,000	£3,000-£5,000
Family car (RWD)	£1,000-£1,500	£1,400-£2,000	£3,000-£4,500	£3,500-£6,000
Executive (RWD/4WD)	£1,200-£1,800	£1,600-£2,200	£3,500-£5,000+	£4,000-£7,500
Large SUV (4WD)	£1,500-£2,200	£1,800-£2,500	£4,000-£5,500+	£5,000-£10,000+
Premium SUV (4WD)	£1,800-£2,500	£2,000-£3,000	£4,500-£6,000+	£6,000-£10,000+

[EM-QUOTE] derived from supplier quotes. Prices assume independent specialist labour. Main dealer adds 40-60%.

Vehicle value rule

Repair vs replace vs scrap - the decision framework

If the cost of repair or replacement exceeds 50-60% of the vehicle's market value, consider scrapping. Rare, collectable, or sentimental vehicles may justify spending above this threshold.

Under £5,000🟢 Scrap or sell for parts - repair costs exceed vehicle value.

£5,000-£8,000🟡 Evaluate carefully - repair may be marginal; engine replacement often not cost-effective.

£8,000-£15,000🟠 Consider engine replacement - if vehicle is otherwise excellent.

£15,000+🔴 Engine replacement is viable - investment is proportionate to vehicle value.

Example: Vehicle worth £4,000 - Repair cost £2,500+ → Scrap the vehicle

Example: Vehicle worth £8,000 - Repair cost £3,000+ → Evaluate carefully

Example: Vehicle worth £15,000 - Repair cost £4,000+ → Engine replacement is viable

Example: Vehicle worth £25,000+ - Repair cost £6,000+ → Definitely worth repairing

Consequences of delay

The domino effect - what happens if you keep driving

Stage 1

Bearing wear - knocking starts

£800-£1,500

Stage 2

Bearing failure - crank scored

£1,200-£2,000

Stage 3

Bearing spins - crank damaged

£2,500-£5,000+

Stage 4

Connecting rod snaps

£2,700-£10,000+

Stage 5

Rod exits block (windowed block)

Engine scrap - replacement required

Stage 6

Catastrophic failure

New vehicle required

⚠️ The cost of delay:

• Early diagnosis (Stage 1): £800-£1,500

• Moderate damage (Stage 2): £1,200-£2,000

• Severe damage (Stage 3): £2,500-£5,000+

• Catastrophic failure (Stage 4-6): £2,700-£10,000+

What's included

What you're paying for

🔧

Engine removal

Removing the engine from the vehicle.

🔩

Engine strip-down

Stripping the engine to access the crank.

🔄

Bearing replacement

New connecting rod and main bearings (£100-£300 parts).

⚙️

Crank machining (if needed)

Grinding the crank journals (£80-£200 if using machine shop).

🔁

Crank replacement (if needed)

New or reconditioned crank (£500-£1,500 parts).

🛠️

Engine reassembly & refitting

Reassembling and refitting the engine.

💧

Oil and filter change

Fresh engine oil and filter (£50-£150).

📋

Testing

Running the engine, checking for leaks.

⚠️ Typically NOT included

🔧

Cylinder head work

£200-£800 - if the head needs work while the engine is apart.

⏱️

Timing chain/belt

£200-£800 - often replaced while engine is apart.

💧

Water pump

£50-£300 - often replaced while engine is apart.

🛢️

Oil pump

£100-£400 - often replaced while engine is apart.

🚗

Hire car

£50-£150/day - unless specifically offered.

Real crankshaft repair examples

What other owners actually paid

Anonymised real quote requests from 2025. [EM-QUOTE]

Vehicle	Engine	Year	Service	Cost	Notes
BMW 320d	N47	2014	Bearing replacement	£1,200	Knocking started - caught early. Crank not damaged.
BMW 530d	N57	2015	Crank machining	£1,800	Knocking - crank scored. Reground.
BMW X5	N57	2016	Engine replacement	£4,500	Crank damaged - replacement engine fitted.
Range Rover Sport	3.0 TDV6	2015	Engine replacement	£5,500	Crank failure at 92,000 miles - windowed block.
Range Rover Sport	3.0 TDV6	2013	Engine replacement	£5,200	Crank bearing failure - engine scrap.
Land Rover Discovery	3.0 TDV6	2014	Engine replacement	£5,800	Crank failure at 105,000 miles.
Audi A6	3.0 TDI	2014	Crank replacement	£3,200	Crank damaged - new crank fitted.
Mercedes E-Class	OM651	2012	Bearing replacement	£1,100	Knocking - caught early. Crank not damaged.
Ford Transit	2.2 Duratorq	2015	Engine replacement	£4,000	Crank failure at 120,000 miles.
Vauxhall Insignia	2.0 CDTi	2012	Engine replacement	£3,200	Crank damaged - replacement engine fitted.

[EM-QUOTE] All quotes are anonymised from real submissions. Prices are ex VAT and assume independent specialist labour.

Before you agree

10 questions to ask before crankshaft repair

1. Is the crank damaged or is it just the bearings-

If the crank is not damaged, bearing replacement is cheaper. If it's scored or cracked, the cost escalates significantly.

2. Can the crank be machined or does it need replacing-

If scored but not cracked, machining (regrind) is possible. If cracked or severely damaged, replacement is required.

3. What's the condition of the rest of the engine-

If high-mileage and the crank is damaged, engine replacement may be more cost-effective.

4. What's the total cost including all parts and labour-

Get a full written breakdown. Ask about potential additional costs.

5. What warranty do you offer on the repair-

Typical warranty is 12-24 months on parts and labour. Get it in writing.

6. What's the timeline from booking to completion-

Engine replacement or crank repair takes 1-3 weeks. Machining takes 2-4 weeks.

7. Is the vehicle worth repairing-

Ask the specialist's honest opinion. If under £5,000-£8,000, repair may not be economical.

8. What caused the failure-

Oil pump issue, bearing wear, or something else- If you don't address the root cause, the repair will fail again.

9. Do you have experience with my engine type-

Some engines (Land Rover TDV6, BMW N57) have known crank issues and require specialist knowledge.

10. Can you provide a written quote-

Get everything in writing before agreeing. Scope, cost, timeline, and warranty terms.

Market intelligence - UK 2025 data

What the data tells us about crankshaft repairs

Real numbers from our platform and specialist interviews.

quotes analysed
for crankshaft-related work

Bearing replacement

35% - early diagnosis, crank not damaged

35%

[EM-QUOTE]

Crank machining

25% - scored but not cracked

25%

[EM-QUOTE]

Engine replacement

40% - crank damaged, engine replacement most cost-effective

40%

[EM-QUOTE]

Specialist insight

"Based on supplier interviews and quote data, approximately 40% of crankshaft-related enquiries result in engine replacement rather than crank repair [EM-QUOTE]. When the crank is damaged, engine replacement is almost always more cost-effective than rebuilding the existing engine."

Source: Engines Market supplier data and specialist interviews, 2025.

Frequently asked questions

Common questions about crankshaft repair costs

How much does crankshaft repair cost in the UK- +

Crankshaft repair costs range from £800 to £5,000+ depending on the extent of damage. Bearing replacement costs £800-£1,500, crank machining costs £1,200-£2,000, and complete crank replacement costs £2,500-£5,000+. However, if the crank is damaged, engine replacement (£2,700-£10,000+) is usually more economical.

What are the signs of crankshaft failure- +

Deep knocking noise (rhythmic, increases with revs), low oil pressure warning, metal particles in oil, excessive engine vibration, engine stalls, and oil pressure light. Deep knocking is the most common sign - stop driving immediately.

Can I drive with a knocking crank- +

No - stop driving immediately. A knocking crank means the bearings are failing. Continuing to drive will damage the crank, snap the connecting rod, and destroy the engine. The repair cost will escalate from £800-£1,500 to £2,700-£10,000+.

What's the difference between bearing replacement and crank replacement- +

Bearing replacement (£800-£1,500) replaces only the bearings - the crank is not damaged. Crank replacement (£2,500-£5,000+) replaces the crankshaft itself - the crank is damaged. If the crank is damaged, engine replacement (£2,700-£10,000+) is often more cost-effective.

Which engines are most at risk of crankshaft failure- +

Land Rover 306DT 3.0 TDV6 (2005-2016) - VERY HIGH risk. BMW N57 3.0 diesel (2008-2016) - HIGH risk. Land Rover Ingenium 2.0 (2015-2020) - HIGH risk. Ford 2.0 EcoBlue (2016-2020) - HIGH risk. These engines have known crankshaft bearing issues.

Is crankshaft repair worth it on an older car- +

If the vehicle is worth under £5,000-£8,000, repair is rarely economical. If the vehicle is worth £8,000-£15,000, evaluate carefully. If the vehicle is worth £15,000+, repair or replacement is viable. The rule of thumb: if repair exceeds 50-60% of vehicle value, consider scrapping.

What happens if I ignore a knocking crank- +

The bearings will fail, the crank will be scored or cracked, the connecting rod will snap, and the rod will exit the block (windowed block). The engine will be destroyed - replacement required (£2,700-£10,000+). Early diagnosis (bearing replacement) costs £800-£1,500.

Can a crank be repaired or does it need replacing- +

If the crank is scored but not cracked, it can be machined (reground) for £1,200-£2,000. If the crank is cracked or severely damaged, it must be replaced (£2,500-£5,000+). If the crank is damaged, engine replacement (£2,700-£10,000+) is often more cost-effective.

How long does crankshaft repair take- +

Bearing replacement: 1-2 weeks. Crank machining: 2-4 weeks. Crank replacement: 2-4 weeks. Engine replacement: 1-2 weeks. Machining takes the longest due to sending the crank to a machine shop.

What's the most common cause of crankshaft failure- +

Oil pump failure (BMW N57, Land Rover TDV6), oil starvation (low oil level, infrequent changes), bearing wear (high mileage), and manufacturing defects (some engines). Regular oil changes and checking oil level prevent many failures.

Can I repair a crankshaft myself- +

No - crankshaft repair requires specialist knowledge, tools, and equipment. The engine must be removed, stripped, and reassembled correctly. Incorrect assembly will cause the repair to fail. Use a specialist.

Does crankshaft repair affect insurance- +

Any major mechanical work, including crankshaft repair or engine replacement, should be declared to your insurer. The work may affect vehicle value and should be recorded.

What's the difference between a spun bearing and a scored crank- +

A spun bearing is when the bearing seizes and rotates with the crank - this damages the crank journal. A scored crank is when the crank journal is scratched or grooved by debris or bearing material. Both require machining or replacement.

What's a "windowed block"- +

A windowed block is when the connecting rod punches a hole through the engine block. This is catastrophic failure - the engine is scrap and cannot be repaired. Replacement is required.

Related cost guides

Crankshaft Repair Cost UK
Replacement vs Engine Swap

What does crankshaft repair cost in the UK-

How to spot crankshaft problems

Your options explained

Which engines are most at risk

Crankshaft repair cost by vehicle segment

Repair vs replace vs scrap - the decision framework

The domino effect - what happens if you keep driving

What you're paying for

⚠️ Typically NOT included

What other owners actually paid

10 questions to ask before crankshaft repair

What the data tells us about crankshaft repairs

Common questions about crankshaft repair costs

Explore more engine cost information

Crankshaft Repair Cost UK Replacement vs Engine Swap

What does crankshaft repair cost in the UK-

How to spot crankshaft problems

Your options explained

Which engines are most at risk

Crankshaft repair cost by vehicle segment

Repair vs replace vs scrap - the decision framework

The domino effect - what happens if you keep driving

What you're paying for

⚠️ Typically NOT included

What other owners actually paid

10 questions to ask before crankshaft repair

What the data tells us about crankshaft repairs

Common questions about crankshaft repair costs

Explore more engine cost information

Crankshaft Repair Cost UK
Replacement vs Engine Swap