How much does a BMW 130i engine replacement cost in the UK?

A reconditioned 130i (N52B30) engine typically costs £1,500–£3,500 supply only. Fitting adds £650–£1,300 depending on location and workshop rates. Used engines start from £800–£1,800 supply only. Main dealer new engines start from £6,000–£10,000+ supply only.

Is the BMW 130i engine reliable?

Yes - the N52 is widely regarded as one of BMW's most reliable and characterful petrol engines. With proper maintenance, these engines regularly exceed 150,000–200,000 miles. However, common issues include electric water pump failure, oil leaks from gaskets, and Valvetronic system problems.

Is it worth replacing a BMW 130i engine, or should I scrap the car?

Depends on vehicle value and condition. Against a well-kept £4,000–£8,000 130i, a £2,500–£3,500 recon is 30–85% of the car's value. For a clean example with good body and no rust, replacement may be worthwhile given the 130i's strong following as a future classic.

How do I find my BMW 130i engine code?

The 130i uses the N52B30 engine family. Engine codes include N52B30A (early 265 PS), N52B30AF (early 258 PS), N52B30B (LCI), and N52B30BF (LCI). The engine code is stamped on the cylinder block. Tell us your registration and we'll confirm it for free.

Does the N52 have a cambelt or timing chain?

The N52 has a timing chain, not a cambelt. The chain is designed to last the life of the engine and does not require routine replacement. Unlike the N47 diesel, the N52's timing chain is not a common failure point. However, the VANOS system can suffer from cam ledge wear, which is an expensive repair.

BMW 1 Series 130i2005–20131 Engine Generation

BMW 130i Engine Replacement — Compare Prices & Get Quotes

Name: BMW 130i UK Engine Enquiry Data 2025
Creator: BMWEngines.uk

Get quotes today from trusted UK BMW 130i specialists. The 3.0-litre naturally aspirated N52 inline-six is one of BMW's finest petrol engines - compare reconditioned, rebuilt and used engines with supply & fit available nationwide.

Supply & Fit Available

12-Month Warranty

Nationwide Delivery

20+ Specialists

Supply & Fit Available

12-Month Warranty

Nationwide Delivery

20+ Specialists

BMW 130i Engines - from £800 to £5,500Engine code: N52B30

BMW 130i Engines - from £800 to £5,500· Engine code: N52B30

Instant QuotesNo Obligation100% FreeReconditionedRebuiltUsedSupply & Fit AvailableUK-Wide Network

BMW 130i - Which Engine Does Your Car Actually Have?

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

Era Note

3.0-litre naturally aspirated inline-six - magnesium-aluminium composite block, Valvetronic, Double-VANOS. One engine throughout this badge's history

GenerationYearsEngine CodeReliabilityRecon CostEra Note

E81/E82/E87/E88 BMW 320d E81/E82/E87/E88

2005–2013N52B30 (N52B30A / N52B30AF / N52B30B / N52B30BF)★★★★☆ [NEWLY ASSIGNED - see Data Note]£1,500–£4,500 [PLACEHOLDER]3.0-litre naturally aspirated inline-six - magnesium-aluminium composite block, Valvetronic, Double-VANOS. One engine throughout this badge's history

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 130i Engine Replacement Costs

Supply Only£1,500–£3,500

Fitted (Indie)£2,800–£4,500

Warranty12–24 months

Best ForMost owners - best cost/warranty balance

Engine TypeSupply OnlyFitted (Indie)WarrantyBest For

Used Engine£800–£1,800£1,500–£3,0001–6 monthsBudget priority; donor for rebuild

Reconditioned Engine£1,500–£3,500£2,800–£4,50012–24 monthsMost owners - best cost/warranty balance

Rebuilt Engine£2,500–£4,500£3,800–£5,50012–24 monthsLong-term ownership; 3+ year horizon

Main Dealer New£6,000–£10,000+£7,500–£12,000+24–36 monthsInsurance jobs, warranty claims

Labour estimate: Fitting a 130i engine typically takes 10–14 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer).

→ Compare 130i engine prices from UK specialists

Common Problems With BMW 320d Engines

1. Electric Water Pump Failure

Symptoms: Engine overheating, coolant warning light, heater blowing cold air, electric fan running constantly at high speed

Typical mileage: 50,000–80,000 miles - can fail without warning

Repair cost: £400–£800 (water pump + thermostat replacement)

Replacement cost: N/A - repair only

🔴 Immediate - overheating can cause catastrophic engine damage

Our recommendation:

The N52 uses an electric water pump that is a known failure point. It can fail without warning, leading to rapid overheating. One owner reported: "Water Pump. Failure anywhere from 50,000 onwards, no warning". Preventative replacement is strongly recommended when the car reaches 60,000–80,000 miles, especially if the coolant system shows any signs of weakness. Replace the thermostat at the same time. If the temperature gauge rises or the electric fan runs constantly, stop driving immediately.

Read the full water pump failure guide

1. Electric Water Pump Failure

Symptoms: Engine overheating, coolant warning light, heater blowing cold air, electric fan running constantly at high speed

Typical mileage: 50,000–80,000 miles - can fail without warning

Repair cost: £400–£800 (water pump + thermostat replacement)

Replacement cost: N/A - repair only

🔴 Immediate - overheating can cause catastrophic engine damage

Our recommendation:

Read the full water pump failure guide

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

Symptoms: Burning oil smell, oil spots under the car, visible oil residue on the engine block, low oil level warning

Typical mileage: 60,000–120,000 miles

Repair cost: £300–£800 (gasket replacement - valve cover or oil filter housing)

Replacement cost: N/A - repair only

🟡 Monitor - book inspection soon

Our recommendation:

The N52 engine is prone to oil leaks from the valve cover gasket and oil filter housing gasket. These leaks can lead to oil loss, contamination of engine components, and if left unaddressed, can cause engine damage. A valve cover gasket replacement is a straightforward but labour-intensive job. The oil filter housing gasket is a known weak point - the gasket degrades and leaks oil down the front of the engine. If you notice a burning oil smell or oil spots beneath the car, have the gaskets inspected promptly.

Read the full oil leak guide → /failures/oil-leaks-n52/ [NEW FAILURE PAGE NEEDED]

3. Valvetronic System Issues

Symptoms: Rough idling, reduced power, hesitation on acceleration, stalling, engine warning light

Typical mileage: 60,000–100,000 miles

Repair cost: £400–£1,200 (Valvetronic motor, eccentric shaft sensor, or wiring repair)

Replacement cost: N/A - repair only

🟡 Monitor - book inspection if symptoms develop

Our recommendation:

The Valvetronic system - BMW's variable valve lift technology - can develop problems over time. The eccentric shaft sensor, Valvetronic motor, or wiring can fail, leading to rough idling, reduced power, or stalling. Diagnosing Valvetronic problems requires specialist knowledge and diagnostic equipment. The VANOS system can also suffer from cam ledge wear, which is an expensive repair. If you experience rough running, have the system diagnosed by a specialist before the problem worsens.

Read the full Valvetronic failure guide → /failures/valvetronic-system-failure/ [NEW FAILURE PAGE NEEDED]

Weighing Your Options?

Compare Specialist Quotes When You're Ready

20+ vetted BMW specialists, every 130i engine covered, with a 12-month warranty as standard.

See 130i Engine Options

130i - 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.

130i - 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 SenseWater pump failure✅ Yes£400–£800Preventative replacement is recommendedValve cover gasket oil leak✅ Yes£300–£600Straightforward repair on a well-maintained carOil filter housing gasket leak✅ Yes£300–£500Catch early to prevent belt contaminationValvetronic system failure✅ Yes£400–£1,200Specialist repair required - but viableVANOS cam ledge wear⚠️ Sometimes£1,500–£3,000Viable on low-mileage, well-maintained examples

Buying This 130i? Check These First

Buy If

Full service history with regular oil changes using BMW-spec oil
Evidence of recent water pump and thermostat replacement
No oil leaks - or documented recent gasket replacement
Good body and chassis condition - these are ageing performance cars

Avoid If

Overheating history or cooling system issues - the N52 is unforgiving of overheating
Visible oil leaks from the front of the engine (oil filter housing gasket)
Rough idle or hesitation that hasn't been diagnosed - could be Valvetronic
Poor service history - the N52 is reliable but needs proper maintenance

Closing Verdict

The 130i's N52 is one of BMW's finest naturally aspirated engines - a 3.0-litre inline-six with a characterful soundtrack, linear power delivery, and genuine longevity. The 130i is the most powerful 1 Series of its generation, offering 265 PS and a 0-60 time of 6.0 seconds. The engine is generally robust, but the electric water pump, oil leaks, and Valvetronic system are well-documented weak points. Buy with full service history and evidence of preventative maintenance, and you'll have a future classic that rewards every drive.

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

→ Compare 130i 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 130i engine prices before you buy

20+ Vetted Specialists UK Network

12-Month Warranty as Standard

Nationwide Delivery & Collection

Transparent Pricing, No Hidden Fees

Thousands of 320d Owners Helped

Buying Checklist

Before you buy a used BMW 130i (or before you commit to an engine replacement), check these:

Cooling System

Check for coolant leaks; ask about water pump replacement history

Oil Leaks

Look for oil residue around the valve cover and oil filter housing

Cold Start

Listen for any rattling, ticking, or rough running on start-up

Service History

Including the N52 engine and confirmed oil change intervals

Valvetronic Health

Any rough idle, hesitation, or stalling?

VANOS

Any loss of low-end power or flat spots? Could indicate cam ledge wear

Engine Warning Light

Have codes been read? Look for Valvetronic or VANOS 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.

N52B30 (N52B30A / N52B30AF / N52B30B / N52B30BF)

Years2005–2013

Power258–265 PS (190–195 kW) / 310–315 Nm

2025 Enquiries- (pattern data)

Avg. Recon Cost£1,500–£4,500 [PLACEHOLDER]

Engine CodeYearsPower2025 EnquiriesAvg. Recon Cost

N52B30 (N52B30A / N52B30AF / N52B30B / N52B30BF)2005–2013258–265 PS (190–195 kW) / 310–315 Nm- (pattern data)£1,500–£4,500 [PLACEHOLDER]

Technical Specs

N52B30

Displacement2,996 cc (3.0L)

Cylinders6-cylinder inline

Bore85.0 mm

Stroke88.0 mm

Compression Ratio10.7:1

Cylinder BlockMagnesium-aluminium composite

Cylinder HeadAluminium

ValvetrainDOHC, 4 valves per cylinder, Valvetronic

Variable TimingDouble-VANOS

Fuel SystemElectronic Fuel Injection

AspirationNaturally aspirated

Power (early)265 PS (195 kW) @ 6,600 rpm

Power (LCI)258 PS (190 kW) @ 6,600 rpm

Torque (early)315 Nm @ 2,750 rpm

Torque (LCI)310 Nm @ 2,600–3,000 rpm

→ Compare 130i engine prices for your BMW

Get quotes from trusted UK specialists in minutes.

Market Intelligence

Most Common Failure

Electric water pump failure

typically 50,000–80,000 miles【PATTERN DATA】

Average Enquiry Mileage

60,000

–100,000 miles【PATTERN DATA】

Average Replacement Cost

£2,500

reconditioned, supply only【PLACEHOLDER】

Most Requested Engine Code

N52B30【PATTERN DATA】

Peak Enquiry Season

Summer

overheating issues become more apparent【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.

Why UK BMW 130i Owners Trust BMWEngines.uk

Trusted 130i Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real 130i owners, across the N52B30 engine, as part of the Engine Finders network.
Compare 130i Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit.
UK Engine Replacement Services for 130i
supply-only or full supply & fit available nationwide, covering every 130i from 2005 to 2013.

Find the best BMW 130i engine replacement UK drivers rely on. Compare prices from trusted specialists on EnginesMarket today and get back on the road with confidence.

Explore BMW 130i Engine Quotes

100% Free

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

100% Free

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