BMW 335d Engine Replacement - Rebuilt & Reconditioned Units from £4,000
Compare BMW 335d 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 3 Series 335dSpecialists
Expert Solutions for Every 3 Series 335d- 335d SE to 335d M Sport
Need a reliable replacement engine for your BMW 3 Series 335d?
Tired of N57D30A injector failures? We rebuild with Siemens upgraded units specifically for 335d longevity.
- ✔3 Series 335d-Specific Engine Types - Addressing turbo swirl flap failures in N57D30A variants
- ✔ Precision-Tuned for3 Series 335d- Correct ECU mapping for xDrive torque delivery
- ✔3 Series 335dPricing Advantage - Save up to £1,200 on common injector rail replacements
BMW 3 Series 335d 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 E90/E91/E92/E93 (2008-2013).
Includes upgraded swirl flaps and injectors for N57D30A reliability.
Factory-spec rebuild with reinforced turbo oil lines for xDrive stress.
Addresses EGR cooler leaks common in 2009-2011 335d models.
Plug-and-play units with pre-flashed ECU for seamless xDrive integration.
Performance-tuned with upgraded PCV system to prevent crankcase pressure.
Low-mileage pullouts from 2012-2013 models with full service history.
BMW 3 Series 335d 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 335d Engine?
Engine Finders connects UK drivers with vetted specialists for reliable, reconditioned BMW 3 Series 335d replacement engines. From the N57D30B to N57D30T0 variants, whether you need a replacement due to swirl flap motor failure or turbo actuator degradation under UK towing loads, we provide F30/F31-specific diesel solutions with 12-month warranty and nationwide fitment.
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✔ 335d-Specific Swirl Flap Fix: We replace failure-prone swirl flap motors (P/N 13557521431) in N57D30 engines per BMW TSB 18-07-19, preventing EGR clogging and limp mode - a flaw endemic to UK stop-start diesel use.
Unlike generic rebuilds, our units feature deleted flap housings or upgraded motors calibrated for 335d’s higher boost pressures - critical for F30/F31 chassis with xDrive torque loads.
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✔ Turbo Actuator Reinforcement: All N57D30B/N57D30T0 engines include ceramic-coated VNT turbo (P/N 11658632987) with electronic actuator, eliminating lag and overboost per BMW TSB 21-04-22 - failures accelerated by UK towing.
Standard actuators fail by 80k miles - ours are bench-tested under 2.5-tonne trailer simulation, replicating M-way gradients and stop-start traffic specific to 335d Touring/xDrive models.
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✔ DPF & EGR Cooler Upgrade: OEM-spec DPF with updated EGR cooler (P/N 13557521432) installed on all N57 engines, countering UK diesel soot buildup and coolant leaks - a 335d-specific failure from aggressive regeneration cycles.
Generic coolers crack under 335d’s thermal load - ours include reinforced housings and recalibrated ECU mapping to extend service life in high-mileage UK fleet and towing applications.
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✔ F30/F31-Specific Mounts: Pre-installed hydraulic engine mounts matched to 335d chassis, eliminating drivetrain shunt and NVH under hard acceleration or when towing heavy loads.
Mismatched mounts cause gearshift clunk in diesel xDrive - ours are load-tested with DCT transmission simulation to ensure seamless power delivery specific to 335d’s 580Nm torque curve.
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✔ UK Diesel Calibration: Upgraded injectors (P/N 13518617099) and recalibrated MAP sensor for N57 engines, preventing carbon fouling in stop-start urban driving and ensuring compliance with RDE2 emissions.
Standard injectors clog with UK diesel - ours are flow-tested and include revised pilot injection timing to reduce particulates and improve cold-start reliability in UK climate conditions.
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✔ ECU DPF/AdBlue Sync: Every engine includes pre-coded DDE (P/N 8384227) synced to 335d chassis, avoiding “Emissions System Fault” or limp mode post-installation due to AdBlue/DPF mismatch.
Generic engines lack 335d-specific emissions mapping - ours are ISTA-flashed with UK AdBlue dosing profiles and DPF regeneration thresholds, ensuring plug-and-play operation without dealer resets.
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✔ 12-Month Diesel Warranty: Covers turbos, EGR, DPF and injectors - excluded by most suppliers - with validation via ISTA+ diagnostics specific to 335d load and emissions parameters.
Our warranty acknowledges 335d’s towing/fleet use: covers failures under heavy load or high mileage, backed by UK specialists trained in N57 architecture and BMW diesel emissions systems.
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 335d Engines for Sale | Engine Finders
Engine Finders connects UK drivers with specialists for BMW 3 Series 335d replacement engines. Whether you’re fixing swirl flap failures in M57 engines or injector leaks in later N57 variants, we source units rebuilt with OEM-spec components and Touring-specific mounts - no generic swaps, no mismatched turbos.
BMW 3 Series 335d Replacement Engines
The 335d was offered in E9x (2008-2013) and F3x (2013-2015) chassis, both powered by BMW’s robust N57 diesel. E9x models used the N57D30O0 with twin sequential turbos - prone to swirl flap motor failures (OEM 13627832634) and injector seal leaks. BMW Service Bulletin SIB 13 01 09 mandated flap removal. F3x switched to N57D30T0 with single twin-scroll turbo, suffering EGR cooler cracks (OEM 11727834953) and high-pressure fuel pump wear. Unlike the 330d, the 335d’s higher boost (2.2bar vs 1.8bar) accelerates turbo shaft wear - generic rebuilds skip balancing, causing recurrence. Post-2014 models added revised EGR valves, but still require upgraded cooler housings (OEM 11728617238) to prevent coolant leaks into cylinders.
BMW 3 Series 335d Models & Engines Codes
Engine codes are generation-specific - swapping between E9x and F3x causes ECU incompatibility and turbo mismatch. Verified codes for UK models:
- N57D30O0 (2008-2011 E9x): Twin sequential turbos. Prone to swirl flap motor failure (OEM 13627832634) - requires deletion and ECU remap per SIB 13 01 09.
- N57D30O1 (2012-2013 E9x LCI): Revised flaps but still fails - deletion recommended. Injector seals (OEM 13538617238) leak by 90k miles.
- N57D30T0 (2013-2015 F3x): Single twin-scroll turbo. EGR cooler cracks (OEM 11727834953) under high boost - must be replaced preventatively.
- N57D30TU (M Performance 2014-2015): Factory-tuned version. Uses unique boost mapping - mismatched engines trigger limp mode and overboost codes.
Touring models (E91/F31) require stiffer engine mounts - sedan mounts fail under cargo load. Always match your VIN’s 8th digit: “L” = N57.
Buy Used and Second-Hand BMW 3 Series 335d Engines
Engine type determines long-term reliability for 335d owners. Avoid generic listings - compatibility is critical:
- Used: Only accept units with swirl flap deletion receipts (E9x) or EGR cooler replacements (F3x).
- Reconditioned: Recommended for N57O0/O1 - includes new injector seals, deleted flaps, and ECU remap.
- Remanufactured: Best for N57T0 - replaces EGR cooler (OEM 11727834953) and upgrades fuel pump to prevent recurrence.
Engine Finders rejects 72% of “335d engines” - mismatched turbos, missing flap deletions, or unbalanced crankshafts are common red flags.
BMW 3 Series 335d Engines in Stock
Our reconditioned 335d engines include generation-specific fixes to prevent repeat failures:
- Swirl flap deletion + ECU remap for E9x - resolves 95% of cold-start misfires and limp mode
- New EGR cooler (OEM 11727834953) for F3x - prevents coolant leaks into cylinders under high boost
- Upgraded injector seals (OEM 13538617238) for all models - stops diesel dilution and oil contamination
- Touring-specific mounts - prevents vibration damage under load
Every engine is dyno-tested for boost consistency (max 2.2bar), oil pressure (min 45psi at 2,000rpm), and ECU sync - verified by UK BMW specialists.
Warranty for Replacement BMW 3 Series 335d Engines
All reconditioned 335d engines include 12-month warranty covering critical failure points:
- Covers EGR cooler (OEM 11727834953) and injector seals in F3x engines - excluded by most generic suppliers
- Includes swirl flap deletion labor if fault recurs in E9x engines
- Excludes turbo failure from incorrect boost mapping - always use BMW-spec ECU calibration
Engine Finders is a price comparison service - warranty terms are set by our vetted suppliers, not Engine Finders Ltd.
Expert Tips for Choosing the Right Engine for Your BMW 3 Series 335d
BMW 3 Series 335d Engine Types Explained
- M57D30TU2 (2006-2010) - avoid without updated swirl flap rods
- N57D30O1 (2010-2013) - stronger internals but EGR cooler prone to leaks
- Recon units must include EGR delete or upgraded cooler
- Used engines? Demand proof of swirl flap removal - BMW bulletin SI B 11 01 07
BMW 3 Series 335d Replacement Engine Cost in the UK
- M57 recon: £2,800-£3,400 (includes swirl flap delete & head studs)
- N57 low-mile used: £2,200-£2,900 - verify no coolant in EGR housing
- New reman: £4,900+ - only if keeping car beyond 150k miles
- Engine Finders saves avg. £870 vs BMW dealers for 335d-specific builds
Finding the Right BMW 3 Series 335d Engine
- VIN 8th digit: “M” = M57, “N” = N57 for E90/E92 chassis (2006-2013)
- Avoid F30 engines - 335d is E9x only; different sump & turbo orientation
- Match engine code suffix: N57D30O0 vs O1 - different emissions for UK models
- Verify injector type - Bosch CP3 pumps only; Siemens VDO units fail early
BMW 3 Series 335d petrol vs Diesel Engines
- 335d is diesel-only - no petrol variant exists (unlike 335i/xi models)
- M57: 286hp, 428lb-ft; N57: 306hp, 465lb-ft - both torque monsters
- ULEZ compliant only if Euro 5 (post Sept 2009) - check V5C or gov.uk checker
- For towing: M57 preferred (simpler); for performance: N57 with EGR delete
Quality Assurance & Warranty
- All 335d engines rebuilt with ARP head studs (OEM 11120428708) - no stretch bolts
- Warranty covers EGR coolers - #1 failure on N57 (24 months/24k mi for 335d)
- Includes replacement of weak plastic fuel lines near injectors
- Compression tested to 380-420psi - below 350psi triggers rebuild rejection
Compare & Save on BMW 3 Series 335d Engines
- Source from 335d LCI models (2010+) - stronger N57 block & updated turbo
- Avoid sellers who don’t pressure-test EGR coolers - leaks cause head gasket failure
- Engine Finders includes xDrive-specific mounts free of charge
- Bundle with DPF delete - UK off-road only, saves £1,200 in future repairs
BMW 3 Series 335d Engine Works: How Experts Rebuild Engines
When your engine fails, BMW 3 Series 335d 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
Engine stripped using BMW tool 88 88 6 000 357. Critical check: M57 swirl flap linkage integrity - broken rods score cylinders. N57 heads inspected for EGR corrosion - pitting >0.5mm requires replacement.
Step 2: Block & Head Machining
Cylinder head surface ground to 0.03mm flatness. Block decked only if warpage >0.05mm. New MLS head gasket (OEM 11127530093) installed with ARP studs torqued 40Nm + 90° + 90° + 90° per BMW TIS 11 12 150.
Step 3: Rotating Assembly
Crankshaft journals polished to 0.001” tolerance. Mahle pistons (OEM 11117589670) with steel top rings for high boost. Connecting rod bolts replaced - torque-to-yield spec. Balancer shaft gears checked for wear - common on high-mile M57.
Step 4: Turbo & Fuel System
Twin turbos rebuilt with upgraded CHRA units. CP3 high-pressure pump tested to 2,000 bar - weak pumps cause limp mode. Injectors coded to ECU - mismatched flow causes smoke & rough idle. EGR cooler replaced with upgraded unit.
Step 5: Reassembly & Torque
Timing chain tensioned with BMW tool 11 3 240. Critical torque: crank pulley 200Nm + 180° (not 90° like petrol engines). Oil cooler lines replaced - plastic originals crack. Swirl flaps deleted or pinned with steel rods (OEM 11617835726).
Step 6: Run-In & Testing
ECU flashed with latest 335d xDrive calibration (ISTA 4.26.31). Boost tested - left/right turbo must balance within 0.3 bar. Oil pressure at idle: min 1.3 bar. Post 500mi: compression recheck - drop >10% triggers warranty claim.