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BM Engine Works
4.6
(283)
5
4
3
2
1
4.6
(283) reviews
samuil rusu
1 week ago
Abz R
1 week ago
I purchased a engine for my bmw the service was very efficient smooth process and delivered on time highly recommended company for all you’re bmw engi...Read more
MR HOQUE
2 weeks ago
Excellent guy
Good team
Very polite
Made to feel like your at home
Irbaz Ahmed
2 weeks ago
Very good service and fast, once on the ramp vehicle done within a week, highly recommend very good people and very honest. Top people
Louie Port
2 weeks ago
Had my car engine changed by these guys, they changed the engine, the turbo and the clutch
Sonuc Saltunc
3 weeks ago
Dropped my Range Rover to BM works, car is spot on, good customer service and turnaround
Myles Croxford
1 month ago
Great service and communication from Leon. Definitely recommended!
Glen Allan
1 month ago
Easy and honest garage. Can’t complain
Zac H
1 month ago
Absolutely outstanding service from BM Engine Works.
These guys really know what they're doing. From start to finish, the service was professional, h...Read more
Dorin Furtuna
1 month ago
Best garage recommended
BMW 435d Engines
Model Name
Engine code
Year
Engine size
Chassis
Fuel
KW
HP
Cylinders
Valves
4 Series 435d
N57 D30 B
2013-2016
3.0
F32, F821
Diesel
2201
2301
61
241
BMW 4 Series 435d xDrive Engine Replacement Specialists: Supply & Fitting with Warranty
At BM Engine Works, we offer dependable, low-mileage used and reconditioned BMW 435d engines for sale in the UK. Whether you want to buy an engine for the 2014 model or the latest 2020 model, we always have the BMW engine in stock that caters to your needs. Book your service today for your BMW 435d.
BMW 435d is a diesel engine car in the 4 Series that was manufactured from 2013 to 2020. This vehicle comes with a 3.0L N57 Twin-Turbo Inline-6 Diesel engine. If you are on this page that means you have had some unexpected issue with your car and now you need to find a suitable engine that is low mileage and dependable for your vehicle. With years of experience in the auto industry, we offer high-performance second-hand engines for the BMW 435d in the UK. We source the engine from trusted and well-reputed suppliers who provide only the best quality and low mileage used, rebuilt and reconditioned engines. After getting the engine, each unit goes thoroughly tested and inspected to ensure its quality before fitting it in the vehicle. We heavily invest in our garage infrastructure and always use the latest equipment and tools so that you get the best BMW replacement engine service in the shortest turnaround.
We offer trustworthy and low mileage used and reconditioned BMW 435d xDrive engine replacement service at the very lowest prices. We know that engine replacement services are very expensive but our prices are so affordable that you get the engine service without breaking the bank. With our engine supply and fitting service, we offer fast and secure engine delivery options to your desired location all around the UK. For customers' peace of mind, we offer many festival and seasonal deals in which you can save up to 40% as compared to new dealer prices. For the surety of our quality engine service, we offer free comprehensive warranty of up to 12 months for the satisfaction of the customer. Trust BM Engine Works for your ultimate engine partner and get your BMW 435d back on the road in no time.
Common BMW 435d Engine Problems That We've Seen and Fixed Over 30 Years
Based on 30+ years of specialist diagnostics at BM Engine Works, these are the most frequent engine-related faults our mechanics diagnose across UK vehicles. Each is resolved with our warranty-backed replacement solutions.
BMW 435d Problem
Early Warning Signs / Causes
Our Engine Solution
Timing Chain Stretch and Failure
Signs: Metallic rattle on cold start for 1-3 seconds, ticking at 1,500-2,000 RPM, rough idle, engine management light with cam/crank correlation codes, loss of power. Caused by: Extended oil service intervals, low-quality oil, worn tensioners and degraded plastic chain guides - very common in UK stop-start driving.
Fully reconditioned engine fitted with upgraded timing chain kit (chains, tensioners, guides, sprockets), corrected oil feed and fresh manufacturer-spec oil. Low-mileage used units are chain-noise tested. Includes supply & fit, ECU coding and written warranty with reduced service interval advice.
EGR Valve and DPF Blockage
Signs: Loss of power, black or white smoke, frequent DPF regeneration, engine management light, limp mode, increased fuel consumption. Caused by: Short trips preventing DPF regeneration, carbon build-up clogging EGR valve and cooler, poor fuel quality.
Reconditioned engine with decarbonised intake, cleaned or new EGR valve & cooler, DPF health check and forced regeneration, emission system reset and full road test. Supplied with diagnostics report and warranty-backed fitting.
Turbocharger and Wastegate Failure
Signs: Whistling or siren-like noise, blue smoke on acceleration, boost loss, fault code P0299, rattling on deceleration, flat power delivery. Caused by: Oil contamination from delayed servicing, carbon deposits, heat cycles and worn wastegate actuator linkage - typically after 60k-100k miles.
Engine supplied with reconditioned or new turbocharger, upgraded oil feed pipes, new gaskets and aluminium charge pipe upgrade where factory plastic pipes fail. Includes oil system flush, boost pressure testing and warranty-backed supply & fit.
Oil Leaks from Gaskets and Seals
Signs: Burnt oil smell after parking, oil residue on engine top/sides, drips on driveway, oil in spark plug wells causing misfires, low oil warnings. Caused by: Heat degradation of rubber gaskets, warped plastic valve covers and aged oil filter housing seals.
All reconditioned engines fitted with new OEM-spec gaskets, new valve cover if warped/cracked and resealed oil filter housing. Used engines are pressure washed, resealed and leak-tested before dispatch. Includes engine bay clean and post-fit inspection.
Cooling System Failure
Signs: Overheating, coolant warning light, heater blowing cold, coolant loss with no visible leak, cracked expansion tank. Caused by: Electric water pump failure (common at 60k-80k miles without warning), thermostat failure and brittle plastic cooling components - a known UK weak point.
Replacement engine package includes new electric water pump, thermostat and expansion tank inspection, full cooling system pressure test and manufacturer-spec coolant bleed. Diagnostics included to prevent future overheating damage with warranty.
Carbon Build-Up on Intake Valves
Signs: Rough idle especially when cold, hesitation and throttle lag, gradual power loss, misfire codes, increased fuel consumption. Caused by: Direct injection design - fuel never washes valves - leading to carbon deposits over 40k-60k miles, plus faulty crankcase ventilation.
Reconditioned engines include walnut blasting, reconditioned cylinder head, injector testing and new valve stem seals with improved crankcase ventilation. Fully tested before delivery with UK-wide fitting available.
High-Pressure Fuel Pump and Injector Wear
Signs: Extended cranking before start, rough idle, reduced performance under load, fuel pressure codes P0087/P0171, poor economy. Caused by: Fuel contamination, ethanol blends, high motorway mileage and general wear of high-pressure components.
Engine supplied with tested high-pressure pump, balanced injectors, new fuel filters and calibrated fuel system. Includes live data fuel pressure checks, ECU adaptation reset and road test. Choose from used, reconditioned or rebuilt with written warranty.
Rod Bearing Wear and Crank Hub Issue
Signs: Deep knocking at low idle, low oil pressure warning, timing slip after hard driving, misfires and rough running. Caused by: High-G cornering oil starvation, track use, tuned boost levels and oil degradation under extreme performance.
Performance-focused reconditioned build with upgraded rod bearings, measured oil clearances, reinforced crank hub solution, balanced rotating assembly and new oil pump. Built to motorsport tolerances with break-in guidance, fitting and extended warranty options.
Cheapest Deals on BMW 435d Used & Reconditioned Engine Replacements
When you want to buy a BMW 435d engine, you have two options. The first one is the brand new engine that you can source easily from the BMW dealer and perfectly fit in your vehicle without any doubt. But this option is very costly and not all owners of 435d vehicles can afford it. The second option is the used engine. This type of engine is offered by many local garages in the UK. But you may doubt this type of engine because you don't know about the engine's history and also, no paperwork is offered with these engines. At BM Engine Works, we have a huge stock of the best quality and low mileage used and reconditioned engines for the BMW 435d. With the help of the latest tools and equipment, you get the engine replacement service in a very short time. For the security of our engines, we give you a free comprehensive warranty of up to 12 months depending on the type of engine you choose. We offer the cheapest engine replacement services in the UK.
Trustworthy BMW 435d Engine for Sale with Supply and Fitting Available
When you are in the market and want to buy a second hand engine for your BMW 435d, you see there are a lot of garages offering this. Choosing from them a reliable and trusted garage that provides the best service engine seems a daunting task. But that is not the case when you select BM Engine Works. As an independent garage, we offer the best and most dependable engines for the BMW 435d that are ready to fit in your vehicle perfectly.
Our staff is trained by BMW certified and always up to date with the latest technology. They put a wealth of knowledge into each engine service to give the maximum output. All our quality services are offered at very amazing prices. When you quote online to buy an engine from us, you can save up to 40% as compared to the dealer prices. Buying an engine means you get the ultimate peace of mind knowing that you get the best engine at a minimal price. You just need to enter your vehicle reg number on the website and compare the prices of different engine services. Choose the appropriate one and feel the difference.
Yes—many F3x diesels (incl. 335d/435d) use BMW Active Sound Design (ASD) to enhance cabin sound via the speakers; it can be reduced/disabled via coding or modules.
Not always. Per the official F32 owner’s manual, Auto Start/Stop won’t shut the engine off if the external temp is too low or the engine isn’t at operating temperature, among other conditions.
The BMW 435d engine code is from the N57 family—specifically N57D30T1 for the 435d. BM Engine Works also lists N57 D30 (A/B/C) under their 3.0-diesel codes when sourcing/rebuilding.
BMW stamps the engine number on the crankcase/block (location varies slightly by engine). On N57, it’s typically on the block casting—inspect carefully with a light; it’s also on your paperwork.
Same as above: stamped on the engine block (crankcase) on the N57 in the F32; check the visible flat machined areas around the block with the engine is cool and clean.
The 435d doesn’t use the S55 (that’s the M4’s petrol engine). Your 435d uses the N57 diesel; see Q4–5 for the number location. (If you meant an M4, its S55 number is likewise stamped on the block.)
Yes—BM Engine Works lists BMW 435d engines for sale (both used and reconditioned) with supply and fit in-house or UK-wide delivery.
They advertise a free warranty up to 12 months, with exact cover depending on whether the unit is used or reconditioned.
Enter your REG on the website to get a quote. The team offers advanced diagnostics, engine replacement (supply & fit), optional delivery, and even vehicle recovery if needed.
BMW 435d engine specs (F32/F36): 3.0-litre N57 twin-turbo diesel inline-6, about 230 kW (313 hp) and 630 Nm in EU trims.
Use BMW Longlife-04 approved diesel engine oil (commonly 5W-30). Check/confirm via your service manual or BMW’s Driver’s Guide, and verify level via iDrive/CBS after a fill.
Yes—BM Engine Works has dedicated pages for 435d xDrive and 435d xDrive Gran Coupe with replacement, used/reconditioned units and supply & fit options.
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BMW 335d xDrive M Sport – N57D30B Engine Replacement
Vehicle In 05-Jan-2026
Vehicle Out 09-Jan-2026
Initial Diagnosis
This BMW 335d xDrive M Sport arrived with serious engine concerns and was upgraded with a replacement N57D30B engine, restoring performance, power, and reliability.
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Vehicle In 09-Dec-2025
Vehicle Out 13-Dec-2025
Initial Diagnosis
This BMW 320i M Sport Convertible came in for engine replacement. A low-mileage engine was supplied and fitted, restoring smooth performance and everyday reliability.
This track ready BMW M4 required an engine upgrade instead of factory unit. We provided S55B30A engine and fitted it perfectly,ensuring stronger Performance.
