BMW 3 Series 328i Engine ReplacementCompare Prices & Get Quotes
Get instant quotes today from trusted UK BMW 3 Series 328i engine specialists. Compare prices on reconditioned, rebuilt and used M52B28, M52TUB28, N20B20 and B48B20 engines for your E36, E46, E90 or F30 328i with transparent pricing and verified suppliers.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £1,800 to £6,500
Used from £600 · Reconditioned from £1,500 · Common codes: M52B28, M52TUB28, N20B20, B48B20
From £600
Tested, bare/short engine
From £1,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best BMW 3 Series 328i Replacement Engineto Finding the Best BMW 3 Series 328i Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryBMW 3 Series 328i - Engine History & Specs at a Glance
The BMW 328i has been one of the most celebrated nameplates in the 3 Series range, spanning four generations and three distinct engine families. From the naturally aspirated straight-six M52 in the E36 and E46 through to the turbocharged four-cylinder N20 and B48 in the E90 and F30, the 328i badge has consistently delivered a compelling blend of performance and refinement.
Variant HistoryBMW 3 Series 328i - Engine History & Specs at a Glance
The BMW 328i has been one of the most celebrated nameplates in the 3 Series range, spanning four generations and three distinct engine families. From the naturally aspirated straight-six M52 in the E36 and E46 through to the turbocharged four-cylinder N20 and B48 in the E90 and F30, the 328i badge has consistently delivered a compelling blend of performance and refinement.
BMW 3 Series 328i
Fuel TypePetrol
Engine Size Range2.8L (E36/E46) - 2.0L turbo (F30)
Power Output Range190 hp (E36) - 248 hp (F30 LCI)Engine History Timeline
M52B28 2.8-litre straight-six, 190 hp - E36 328i launched (saloon, coupé, convertible)
M52TUB28 (Technical Update) 2.8-litre straight-six with Double-VANOS, 193 hp - E46 328i launched
E46 328i production ends; replaced by 330i with M54B30
N52B30 3.0-litre straight-six, 230 hp - E90 328i launched (US market only; UK 328i badge absent)
N20B20 2.0-litre turbocharged four-cylinder, 245 hp - F30 328i launched
B48B20 2.0-litre turbocharged four-cylinder, 248 hp - F30 LCI 328i replaced by 330i
Key Specs Snapshot
Fuel TypePetrolEngine Size Range2.8L (E36/E46) - 2.0L turbo (F30)Power Output Range190 hp (E36) - 248 hp (F30 LCI)Years Produced1995-2000 (E36/E46), 2012-2016 (F30)Every engine fitted to the BMW 3 Series 328i is covered below, with UK rebuilt pricing and known failure points.
BMW 3 Series 328i Engine Codes - Specifications & Replacement CostBMW 3 Series 328i Engine Codes - Specifications & Replacement Cost
2.8L Straight-Six Petrol (1995-1998)
Power Output190 hp (140 kW) at 5,300 rpmTorque280 Nm (206 lb-ft) at 3,950 rpmDisplacement2,793 ccYears Fitted1995-1998 (E36 328i)
Compatible Trim Levels
- 328i
- 328i SE
- 328i Sport
- 328i Convertible
- 328i Coupé
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£600-£1,500
Reconditioned
Addressed known issues, tested
£1,500-£3,000
Rebuilt
Full teardown, upgraded internals
£3,000-£5,000
Common Failure
The M52B28 suffers from cooling system failures (plastic water pump impeller and thermostat housing become brittle), oil leaks from the valve cover gasket and oil filter housing, and VANOS system seal failure causing rough idle and power loss.
The BMW 328i has been powered by three very different engine families across its production life - the M52 straight-six in the E36 and E46, and the turbocharged N20 and B48 four-cylinders in the F30. While all are capable of high mileages with proper maintenance, each has well-documented weaknesses that owners should understand. Rebuilt engines through EnginesMarket include upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.
Why the N20 328i Engine Can Self-Destruct
Affected Vehicles
BMW 3 Series 328i (N20B20, 2012-2015)
Typical Failure Mileage
60,000-100,000 miles
Root Cause
The N20 engine's timing chain guides are made from a brittle plastic that can crack and break. When the guides fail, the timing chain loses tension, and because the N20 is an interference engine, the valves and pistons can collide, destroying the motor. A rattling noise from the engine at cold start or idle is the classic warning sign.
Why It Happens
The N20 engine's timing chain guides are made from a brittle plastic that can crack and break. When the guides fail, the timing chain loses tension, and because the N20 is an interference engine, the valves and pistons can collide, destroying the motor. A rattling noise from the engine at cold start or idle is the classic warning sign.
Dealer (parts + labour)
£1,800-£3,000
Specialist (parts + labour)
£1,200-£2,000
What it involves
New timing chain, guides, tensioner - requires specialist tools
Suitability
Best if caught early - before chain has slipped
1 - 2 daysDealer (parts + labour)
£6,000-£10,000
Specialist (parts + labour)
£4,000-£6,500
What it involves
Complete rebuilt engine with upgraded timing components, 12-month warranty
Suitability
If timing chain has failed causing internal 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 |
|---|---|---|---|---|---|
 Timing chain guide replacement Minor | £1,800-£3,000 | £1,200-£2,000 | New timing chain, guides, tensioner - requires specialist tools | Best if caught early - before chain has slipped | 1 - 2 days |
 Full Replacement - rebuilt/reconditioned engine Best Value | £6,000-£10,000 | £4,000-£6,500 | Complete rebuilt engine with upgraded timing components, 12-month warranty | If timing chain has failed causing internal damage | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical F30 328i is worth approximately £6,000-£14,000 depending on mileage and condition. Timing chain guide replacement (£1,200-£2,000 at specialist rates) is financially sensible and protects the engine. Full engine replacement is only justified if the car is in excellent condition with low mileage. If replacement cost exceeds 60% of vehicle value, evaluate scrap or part-exchange first.
Our Recommendation
Our Recommendation
If you hear a rattling noise from the front of the engine - particularly on cold start - act immediately. The N20 timing chain issue is well-documented and can write off an otherwise good car. A preventative chain guide replacement is far cheaper than a full engine rebuild.
Don't Let Engine Failure Write Off Your BMW 3 Series 328i
Whether it's timing chain guides on your N20-powered F30, cooling system failure on your E36 or E46, or VANOS seals on your M52, the 328i remains one of the most rewarding 3 Series variants to own - when properly maintained. Every rebuilt engine supplied through EnginesMarket comes with upgraded components addressing the original failure points and a minimum 12-month unlimited-mileage warranty, with nationwide delivery and supply & fit options available.
Compare BMW 3 Series 328i N20 timing chain repair costs
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
BMW 3 Series 328i Engine ReplacementFrequently Asked Questions
Question 1How much does a BMW 328i engine replacement cost in the UK-
The cost to replace an engine in a BMW 328i varies significantly by generation. For M52B28/M52TUB28 straight-six engines in the E36/E46, rebuilt units range from £3,000-£5,500. For N20B20 turbo four-cylinders in the F30, rebuilt units range from £4,000-£6,500. Used engines start from around £600, while reconditioned units fall in the £1,500-£4,000 bracket. Specialist fitting adds approximately £600-£1,000 in labour.
- Used M52/N20: £600-£2,000
- Reconditioned: £1,500-£4,000
- Rebuilt: £3,000-£6,500
- Labour (supply & fit): £600-£1,000 at specialist rates
Question 2What are the signs of timing chain failure in a BMW 328i (N20 engine)-
The N20 engine in the F30 328i is notorious for timing chain guide failure. The most common early warning sign is a metallic rattling noise from the engine, particularly on cold start or at idle. Other symptoms include a check engine light, reduced performance, and in severe cases, complete engine failure.
- Rattling noise from the front of the engine (cold start)
- Check engine light illumination
- Loss of power or rough running
- Catastrophic failure if ignored - the timing chain can snap
Question 3Is it worth replacing the engine in a BMW 328i-
The answer depends entirely on your 328i's generation and condition. For E36/E46 328i models worth £3,000-£8,000, a full engine replacement (£3,000-£5,500) is borderline and only makes sense if the car is in exceptional condition. For F30 328i models worth £6,000-£14,000, replacement is more viable but still requires careful consideration.
- E36/E46 value: £3,000-£8,000
- F30 value: £6,000-£14,000
- Full rebuilt engine: £3,000-£6,500
- Timing chain guide replacement: £1,200-£2,000 (best value repair on N20)
- Cooling system overhaul: £350-£650 (best value preventative maintenance)
- Evaluate scrap value if replacement cost exceeds 60% of vehicle value
Question 4What's the difference between the M52B28 and M52TUB28 engines-
The M52B28 (1995-1998) features single-VANOS on the intake camshaft and an aluminium block with Nikasil cylinder lining. The M52TUB28 (1998-2000) introduced Double-VANOS (on both intake and exhaust camshafts), cast-iron cylinder liners for improved durability, and revised camshafts.
- M52B28: Single-VANOS, Nikasil liners, 190 hp
- M52TUB28: Double-VANOS, cast-iron liners, 193 hp
- Both: 2.8L straight-six, 280 Nm torque
Question 5How long does a BMW 328i engine replacement take-
A full engine replacement on a BMW 328i typically takes 1-2 days for a specialist workshop, assuming the replacement engine is on hand. E36/E46 M52 straight-six swaps are well-understood by BMW specialists, while F30 N20 swaps require additional expertise due to the turbocharged architecture.
- Supply-only delivery: 1-3 working days (nationwide)
- Supply & fit: 1-2 days at the workshop
- Always confirm lead time with your chosen specialist
Question 6Can I still get a replacement engine for a BMW 328i-
Yes. While the M52B28, M52TUB28, and N20B20 are no longer in production, used, reconditioned, and rebuilt units remain readily available through UK engine specialists. EnginesMarket connects you with vetted suppliers who stock engines for all 328i generations - from the E36 through to the F30.
- Used M52/N20 engines: widely available from £600
- Reconditioned units: available from £1,500
- Rebuilt units: available from £3,000 with 12-month warranty
- All options available with supply & fit
Why Choose UsCompare BMW 3 Series 328iEngine PricesToday
500+ M52, N20 and B48 engines supplied through our network
12-Month Warranty on every rebuilt BMW 328i engine
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