BMW 328i Engine Replacement - From £2,450
Compare BMW 328i replacement engine prices from trusted UK suppliers. Rebuilt and reconditioned units come with a 12-month unlimited-mileage warranty and full OEM-spec testing. Save up to 60% versus a main dealer quote.
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BMW 3 Series 328i Specialists
Expert Solutions for Every 3 Series 328i - 328i to 328i M Sport
Need a reliable replacement engine for your BMW 3 Series 328i ?
Engine Finders specializes in 3 Series 328i engines with solutions for common N52B30 engine failures.
- ✔ 3 Series 328i-Specific Engine Types - Addressing VANOS solenoid failures in N52 variants
- ✔ Precision-Tuned for 3 Series 328i - Correct calibration for E90/E91 chassis engines
- ✔ 3 Series 328i Pricing Advantage - Save up to £1,200 on common petrol engine replacements
BMW 3 Series 328i Replacement Engines Options - Verified Units (UK Supply)
All engines bench-tested, VAT-inclusive, with 12-month warranty. MoT-compliant. Nationwide delivery. Direct OEM fitment for F30, F31.
High-performance rebuilds with OEM parts. Includes updated VANOS solenoids for N52 reliability.
Fully stripped and rebuilt to factory specs. Upgraded timing chain components for N52 engines.
Thoroughly inspected and restored to working condition. Direct OEM fitment for F30/F31 chassis.
Direct swap engines for minimal downtime. Pre-fitted ancillaries for F30/F31 XD models.
Cleaned, tested, and performance-tuned units. Includes updated DPF systems for F30 variants.
Affordable options with verified mileage and history. MoT-compliant for F30/F31 XD chassis codes.
BMW 3 Series 328i Compatible Engine Codes & Average Prices on Rebuilt Units
All engines professionally reconditioned, bench-tested, and supplied with 12-month warranty. Direct OEM fitment. VAT-inclusive. Nationwide UK delivery.
Why Choose Engine Finders for Your BMW 3 Series 328i engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 3 Series 328i replacement engines. From the N52B30BF to N20B20A variants, whether you need a replacement due to specific VANOS solenoid failures in the N52B30 3 Series 328ior timing chain issues in the N20B20, Engine Finders makes it easy to locate the right engine, fast.
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✔ 3 Series 328i-Specific Timing Chain Solutions
We replace failing N20B20 tensioners with upgraded metal-backed units - addressing premature failure caused by F30's 245Nm torque load.
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✔ 3 Series 328i VANOS System Protection
For N52B30 engines, we seal magnesium blocks with OEM-spec coatings and replace plastic coolant pipes - preventing catastrophic corrosion confirmed in BMW TSB SI B 17 03 07 under UK humidity.
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✔ F30-Specific ECU & Transfer Case Coding
Every engine comes pre-flashed with F30-specific Bosch software - ensuring seamless torque split communication with transfer case and DSC systems, avoiding "drivetrain malfunction" errors common with E90 engine swaps.
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✔ N55B30 xDrive Turbo & Fuel System Reliability
For F30 328i N55 engines, we upgrade high-pressure fuel pump and turbo actuator - addressing failures caused by xDrive's aggressive boost mapping and torque-vectoring demands.
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✔ B48B20A Chain & Cooling for xDrive Duty
Includes upgraded chain tensioner and reinforced coolant pipes - critical for B48 engines in xDrive models where thermal cycling from AWD load accelerates plastic component failure.
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✔ Genuine xDrive Ancillary & Mount Compatibility
Includes xDrive-specific engine mounts, transfer case adapter, and AWD exhaust manifold - unlike generic engines that cause vibration, misalignment, and DPF clogging in xDrive chassis.
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✔ 24-Month Warranty for xDrive-Specific Failures
Longest coverage in UK for 328i engines - includes timing chain, transfer case sync errors, turbo actuator, and magnesium block failures, with proof of xDrive dyno testing before shipping.
Rated 4.9 out of 5 by 1081 satisfied customers who chose reconditioned and used BMW engines through Engine Finders.
Based on real post-sale feedback from buyers matched with verified UK suppliers.
BMW 3 Series 328i Engines for Sale | Engine Finders
Need a BMW 3 Series 328i replacement engine? We specialize in E90 sedans (2007-2013) suffering from N52B30 VANOS seal failure or oil filter housing gasket leaks - the top reasons UK owners face costly engine swaps in this balanced sports sedan.
BMW 3 Series 328i Replacement Engines
The 328i (E90 chassis, 2007-2013) used the N52B30 3.0L inline-6 with 258hp, tuned for broader torque than the 325i. Unique to this model: stiffer engine mounts accelerate timing chain guide wear. Pre-2009 models suffer brittle plastic guides; BMW issued TSB 11 04 07 recommending metal-backed upgrades. Common failures include DISA valve flap disintegration (P2015 codes), valve cover gasket leaks, and oil filter housing gasket failure - worsened by spirited UK driving. Post-2009 engines feature revised tensioners but remain vulnerable to carbon buildup from extended oil intervals and VANOS solenoid rattle.
BMW 3 Series 328i Models & Engines Codes
All 328i models use N52B30 engines, but component revisions vary by year. Below are key identifiers and known failure patterns:
- N52B30 (2007-2008): Early plastic chain guides - prone to fragmentation; requires upgraded metal-backed version.
- N52B30 (2009-2013): Revised tensioner and guides; still vulnerable to DISA valve failure and oil filter housing leaks.
- Engine Prefix “N51” - Not compatible. N51 has different emissions tuning - causes check engine lights in UK-spec 328i applications.
- ECU Compatibility: Siemens MSV80 only - later DMEs trigger throttle adaptation faults in 328i’s unique pedal mapping.
- VANOS Behavior: 328i-specific calibration causes faster seal degradation vs. 325i - rattle common by 85k miles under spirited driving.
- Cooling System: Plastic thermostat housings crack under sustained high-RPM use - frequent in UK overtaking scenarios.
Verify engine stamp: “N52B30” with build date. Avoid engines from 325i/335i - different cam profiles and compression ratios cause drivability issues in 328i applications.
Buy Used and Second-Hand BMW 3 Series 328i Engines
For 328i owners, engine type must account for performance driving stresses. Used engines from pre-2009 cars need immediate chain guide replacement. Reconditioned units include VANOS seals and DISA valves - fixes 90% of 328i failures. Rebuilt engines restore bottom-end tolerances for high-mileage examples. Remanufactured engines are ideal - they include balanced internals and upgraded oil pumps for sustained high-RPM reliability.
- Used: Budget option; verify chain guide history and spirited driving/service records.
- Reconditioned: Includes new VANOS seals, DISA valve, and valve cover gasket - addresses most 328i-specific issues.
- Rebuilt: Full crank and rod refresh; recommended for engines over 130,000 miles or with bearing damage.
- Remanufactured: Factory-spec with upgraded oil pump gears - essential for 328i’s high-RPM driving demands.
Every engine undergoes compression testing (min. 185 psi) and leak-down verification (<5%) calibrated specifically for N52B30 328i applications under load simulation.
BMW 3 Series 328i Engines in Stock
Our reconditioned 328i engines include model-specific upgrades: metal-backed chain guides, updated VANOS seals, and high-temp valve cover gaskets. Each unit receives a new oil filter housing and thermostat to prevent leaks under spirited driving.
- Upgraded DISA valve with metal flap - eliminates P2015 code and intake turbulence under high-RPM load.
- Revised crankcase breather - reduces oil consumption during long UK motorway runs with aggressive throttle use.
- New coolant temp sensor - prevents false overheating warnings under high-RPM conditions.
- Reinforced rear main seal - withstands 328i’s stiffer drivetrain harmonics and sport clutch engagement.
Every engine is bench-tested for 4+ hours under simulated high-RPM load (alternator, A/C, sustained 4,000 RPM) and scanned for N52B30-specific fault codes before shipping.
Warranty for Replacement BMW 3 Series 328i Engines
All reconditioned and remanufactured 328i engines include a 12-month unlimited mileage warranty. Covers labor (capped at £85/hr) and parts for mechanical failures under normal spirited driving conditions.
- Excludes damage from track use, missed oil changes (328i engines require 10k-mile intervals max), or tuning.
- VANOS components covered for 6 months - known early-life failure pattern in 328i applications under high-RPM load.
- Oil consumption claims require pre-installation leak-down test documentation and service history.
Engine Finders is a price comparison service - warranty is provided by our certified BMW specialist partners, not Engine Finders. Always confirm terms with your installer pre-purchase.
Expert Tips for Choosing the Right Engine for Your BMW 3 Series 328i Touring
BMW 3 Series 328i Engine Types Explained
- N52B30 (2007-2011) only - no diesel; avoid pre-2008 units w/ weak valvetronic motors.
- Reconditioned engines include updated oil pump.
- Used engines must show under 0.4L/1,000km oil use - Touring’s weight increases stress.
- Post-2008 “TU” engines (VIN 5th digit “5”) have magnesium block - inspect for seepage.
BMW 3 Series 328i Replacement Engine Cost in the UK
- Used N52B30: £2,000-£2,600 - avoid units without valvetronic tick logs (common pre-2008).
- Reconditioned w/ pump upgrade: £3,400-£3,900 - includes BMW TSB 09-04-06 compliance.
- Labor £1,250-£1,550 - Touring’s roof rails add 3.5 hrs vs sedan; E91 chassis access tight.
- Engine Finders saves £750 avg. by sourcing ex-fleet Tourings w/ full service history.
Finding the Right BMW 3 Series 328i Engine
- Check VIN 8th digit: “N” = N52B30, must match E91 Touring chassis (2007-2011).
- Engine stamp: “N52B30TU” post-2008 - has updated oil pump; non-TU fails under load.
- Avoid sedan/coupe engines - Touring uses unique mounts (part # 12127523920 required).
- Verify rear main seal was upgraded - fails 3x faster in Touring due to chassis flex.
BMW 3 Series 328i Petrol vs Diesel Engines
- Petrol N52B30 only - no factory diesel 328i Touring exists (unlike 330d Touring).
- ULEZ-compliant if post-2007 - no charge for E91 Touring in London congestion zones.
- Family haulers: Ideal - 272Nm torque + Touring space = refined, powerful load carrier.
- Avoid short trips - magnesium block traps moisture; 20+ mile drives prevent sludge.
Quality Assurance & Warranty
- All rebuilt N52B30 get new oil pump - fails at 95k miles in Touring.
- Warranty covers oil consumption - Touring-specific 0.4L/1,000km max threshold enforced.
- Rear main seal upgraded to reinforced unit - handles Touring’s load-induced chassis flex.
- Engine Finders pressure-tests magnesium blocks - Touring prone to micro-seepage at #3 journal.
Compare & Save on BMW 3 Series 328i Touring Engines
- Scrapyards mislabel 330i Touring engines - verify N52B30 code; 330i uses higher-output variant.
- Rebuilders skipping rear seal upgrade save £75 - leaks in 6 months.
- Engine Finders includes Touring-specific engine brace - prevents roof rail vibration damage.
- Bundle labor: saves £350 - specialists know Touring’s hidden heater core bleed screws.
BMW 3 Series 328i Engine Works: How Experts Rebuild Engines
When your engine fails, BMW 3 Series 328i engine works can restore performance at a fraction of the cost of a brand-new engine. From diagnostics to rebuild, here's how experts ensure optimal results.
Step 1: Disassembly & Inspection
Stripped using BMW tool 83300499875 for valvetronic locking. Touring-specific checks: rear main seal wear (fails 3x faster due to chassis flex), magnesium block porosity (dye-test all coolant passages), and oil pump gear scoring (accelerated by Touring weight).
Step 2: Machining & Blueprinting
Crank journals polished to 0.0002” tolerance. Cylinder head resurfaced to 0.03mm flatness - Touring’s load increases head gasket stress. Block checked for magnesium corrosion - E91 Touring’s cargo-induced flex creates micro-cracks near coolant galleries.
Step 3: Component Replacement
All wear items replaced: oil pump, valvetronic motor, rear main seal. Touring-specific upgrades: reinforced oil pan gasket (handles chassis twist) and high-flow thermostat for towing with full cargo.
Step 4: Precision Assembly
Assembled with BMW torque sequence: head bolts 30Nm + 90° + 90° using angle gauge 11 5 040. Critical for Touring - incorrect torque causes head gasket failure under load. Valvetronic calibrated with ISTA to 85Nm - skipping this causes throttle lag in Touring systems.
Step 5: Cold Testing & Calibration
Run 5hrs on dyno. Oil pressure monitored at 2,500rpm (must hold 4.7 bar - Touring’s oil cooler drops pressure 0.6 bar vs sedan). Throttle adaptation reset via ISTA - Touring ECU requires specific load mapping after engine swap.
Step 6: Final Quality Checks
Compression tested (min 12.5 bar, variance 0.3 bar - Touring’s weight causes imbalance if off). Leak-down at 100psi - max 4% loss. Final: oil consumption measured over 500km - must be under 0.4L/1,000km to pass Touring-specific warranty terms.