BMW 5 Series 545i Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK BMW 5 Series 545i engine specialists. Compare prices on reconditioned, rebuilt and used engines for your V8-powered 545i - featuring the N62B44 4.4-litre petrol unit.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £1,800 to £3,500
Used from £1,000 · Reconditioned from £1,800 · Common codes: N62B44, N62B44A
From £1,000
Tested, bare/short engine
From £1,800
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK BMW 5 Series 545i specialists.
3 Simple Steps3 Simple Stepsto Finding the Best BMW 5 Series 545i Replacement Engineto Finding the Best BMW 5 Series 545i Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryBMW 5 Series 545i - Engine History & Specs at a Glance
The BMW 545i was the flagship petrol V8 of the E60 5 Series range, sitting above the 530i and below the M5. Produced from 2003 to 2005, it featured BMW's N62B44 4.4-litre V8 - a sophisticated engine with double VANOS and Valvetronic technology.
Variant HistoryBMW 5 Series 545i - Engine History & Specs at a Glance
The BMW 545i was the flagship petrol V8 of the E60 5 Series range, sitting above the 530i and below the M5. Produced from 2003 to 2005, it featured BMW's N62B44 4.4-litre V8 - a sophisticated engine with double VANOS and Valvetronic technology.
BMW 5 Series 545i
Fuel TypePetrol
Engine Size4.4L (4,398cc)
Power Output Range325-333hp across the variant's historyEngine History Timeline
October 2003 - N62B44 4.4L V8 petrol, 325-333hp, 450Nm torque
September 2005 - Production ends; replaced by the 550i with the N62B48 4.8L V8
Key Specs Snapshot
Fuel TypePetrolEngine Size4.4L (4,398cc)Power Output Range325-333hp across the variant's historyYears Produced2003-2005Every engine fitted to the BMW 5 Series 545i is covered below, with UK rebuilt pricing and known failure points.
BMW 5 Series 545i Engine Codes - Specifications & Replacement CostBMW 5 Series 545i Engine Codes - Specifications & Replacement Cost
4.4L V8 Petrol (2003-2005)
Power Output325-333hp (242-245kW) at 6,100rpmTorque440-450Nm at 3,600-3,700rpmYears Fitted2003-2005 (E60 generation)
Compatible Trim Levels
- 545i SE
- 545i Sport
- 545i M Sport
- 545i Touring
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£1,000-£1,800
Reconditioned
Addressed known issues, tested
£1,800-£3,000
Rebuilt
Full teardown, upgraded internals
£2,200-£3,500
Common Failure
The N62B44's main weaknesses are Valvetronic and VANOS system malfunctions, along with growing oil consumption from worn valve stem seals. Oil leaks from the generator housing seal and crankshaft oil seal are also common. On higher-mileage units, catalyst debris can be drawn into the cylinders.
The BMW 545i's N62B44 V8 is a refined and powerful engine, but it has several well-documented weak points as mileage accumulates. The most common issues are oil leaks, valve stem seal wear, and Valvetronic/VANOS system faults. Rebuilt engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.
Valve Stem Seal Wear in the BMW 545i N62B44
Affected Vehicles
BMW 5 Series 545i (N62B44, 2003-2005)
Typical Failure Mileage
60,000-100,000 miles
Root Cause
The N62B44 is known for excessive oil consumption due to worn valve stem seals. This allows oil to seep past the seals and into the combustion chamber, causing blue smoke from the exhaust, particularly on start-up or after idling.
Why It Happens
The N62B44 is known for excessive oil consumption due to worn valve stem seals. This allows oil to seep past the seals and into the combustion chamber, causing blue smoke from the exhaust, particularly on start-up or after idling.
Dealer (parts + labour)
£2,500-£4,000
Specialist (parts + labour)
£1,500-£2,500
What it involves
Replace all valve stem seals - engine-out job on V8
Suitability
Best if caught early with smoking symptoms
1 - 2 daysDealer (parts + labour)
£5,000-£9,000
Specialist (parts + labour)
£3,000-£6,000
What it involves
Supply & fit, upgraded components, 12-month warranty
Suitability
Best if oil consumption has caused other 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 |
|---|---|---|---|---|---|
 Valve stem seal replacement Minor | £2,500-£4,000 | £1,500-£2,500 | Replace all valve stem seals - engine-out job on V8 | Best if caught early with smoking symptoms | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £5,000-£9,000 | £3,000-£6,000 | Supply & fit, upgraded components, 12-month warranty | Best if oil consumption has caused other damage | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical used BMW 545i (2003-2005) sits in the £3,000-£8,000 bracket. For a car worth under £4,000, a full engine replacement may approach or exceed the vehicle's value - evaluate scrap value carefully. For well-maintained, low-mileage examples worth £6,000+, replacement is usually justified.
Our Recommendation
Our Recommendation
If your 545i is smoking on start-up, get the valve stem seals inspected immediately. A £1,500-£2,500 specialist repair is far cheaper than a £3,000+ full engine replacement if the issue is ignored and causes further damage.
Don't Let Engine Failure Write Off Your BMW 5 Series 545i
The N62B44 is a characterful V8 that rewards proper maintenance - but its known weaknesses require attention. Whether you're facing valve stem seal wear, VANOS issues, oil leaks, or the rare need for a full replacement, EnginesMarket connects you with vetted UK specialists who understand the 545i's V8 powertrain. Every rebuilt engine comes with a 12-month warranty, upgraded components, and nationwide delivery options - all at a fraction of dealer pricing.
Compare rebuilt N62B44 BMW 5 Series 545i 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 5 Series 545i. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
BMW 5 Series 545i Engine ReplacementFrequently Asked Questions
Question 1How much does a BMW 5 Series 545i engine replacement cost in the UK-
A BMW 545i engine replacement typically costs £2,200-£3,500 for a rebuilt unit supply-only, with used options from £1,000 and reconditioned from £1,800. Labour for supply and fit adds approximately £1,000-£1,500 (15-20 hours at independent specialist rates) due to the V8's complexity. Dealer pricing is significantly higher.
- Used engine: £1,000-£1,800 supply-only
- Reconditioned: £1,800-£3,000 supply-only
- Rebuilt: £2,200-£3,500 supply-only
- Supply & fit: add £1,000-£1,500 in labour
Question 2Does the BMW 545i have timing chain problems-
Unlike the later N47 and N57 diesel engines, the N62B44 V8 uses two timing chains rather than one, and does not suffer from the same catastrophic guide failure. However, the N62's primary weaknesses are valve stem seal wear, VANOS and Valvetronic system faults, and oil leaks from various seals.
- Timing chain issues are not a primary concern on the N62
- Valve stem seals are the most common failure point
- VANOS and Valvetronic faults are well-documented
- Regular maintenance is essential
Question 3Is it worth replacing the engine in a BMW 545i-
It depends on the car's condition and value. A typical 545i (2003-2005) is worth £3,000-£8,000. For a well-maintained, low-mileage example worth £6,000+, a £2,200-£3,500 replacement is a viable investment. For a car worth under £4,000, a full replacement may approach or exceed the vehicle's value - in which case a used engine or scrap may be better options.
- Well-maintained 545i: replacement is justified
- Sub-£4k examples: evaluate scrap value first
- Rebuilt engines include 12-month warranty
Question 4What's the difference between the 545i and 550i-
The 545i and 550i are both V8-powered 5 Series models, but they use different engines. The 545i (2003-2005) uses the N62B44 4.4-litre V8 producing 325-333hp. The 550i (2005-2010) uses the larger N62B48 4.8-litre V8 producing 367hp. The 550i replaced the 545i in the E60 range from September 2005.
- 545i: 4.4L N62B44, 325-333hp (2003-2005)
- 550i: 4.8L N62B48, 367hp (2005-2010)
- Both are V8 petrol engines
Question 5How long does a BMW 545i engine replacement take-
A typical BMW 545i engine replacement takes 3-5 working days for supply and fit through an independent specialist. The V8 engine is more complex to remove and install than a four- or six-cylinder unit, adding to the labour time. Allow additional time for parts sourcing and any ancillary work.
- Typical turnaround: 3-5 working days
- Supply only: 1-2 days for dispatch
- Full replacement: 4-6 days including testing
- V8 complexity adds to labour time
Question 6What warranty comes with a BMW 545i replacement engine-
Every rebuilt and reconditioned BMW 545i engine supplied through EnginesMarket carries a minimum 12-month unlimited-mileage warranty. Terms vary by supplier - some offer extended coverage up to 24 months on premium rebuilds. Used engines typically come with a shorter warranty (30-90 days) depending on the supplier and mileage.
- Rebuilt/reconditioned: 12 months minimum, unlimited mileage
- Premium rebuilds: up to 24 months available
- Used engines: 30-90 days typically
- Always confirm exact terms with your chosen supplier
Why Choose UsCompare BMW 5 Series 545iEngine PricesToday
50+ BMW 545i engines supplied through our network
12-Month Warranty on every rebuilt 545i engine
Nationwide UK delivery
supply & fit available
Comparing quotes for your BMW 5 Series 545i is free, quick, and carries no obligation. Enter your registration above to get matched with vetted UK specialists who stock the correct N62B44 V8 engine for your E60. Whether you need a used, reconditioned, or fully rebuilt unit - with or without fitment - we'll connect you with the right supplier at the right price.
Enter your registration
and get matched with verified BMW 5 Series 545i specialists.