Free Expert Technical Advice about your engine problems
Advanced Engine Diagnostics and Fitting Services
Vehicle Recovery service available
Select your Vehicle Detail
Satisfied Customer Reviews
BM Engine Works
4.6
(279)
5
4
3
2
1
4.6
(279) reviews
Louie Port
2 days ago
Had my car engine changed by these guys, they changed the engine, the turbo and the clutch
Sonuc Saltunc
1 week ago
Dropped my Range Rover to BM works, car is spot on, good customer service and turnaround
Myles Croxford
3 weeks ago
Great service and communication from Leon. Definitely recommended!
Glen Allan
4 weeks 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
Faaiq Butt
1 month ago
Great service and helpful staff
Hassan Rafiq
1 month ago
Great service would 100% recommend
Callum Parker
1 month ago
jay ojo
1 month ago
By far the best experience ive had highly recommended very professional work was carried out to a high standard.i was kept up to date with repairs...Read more
Select your BMW 4 Series Model
Buy Replacement Gearboxes for BMW 4 Series
At BM Engine Works every BMW 4 Series manual gearbox undergoes a strict mechanical analysis and performance check to the highest level of reliability and efficiency before being sent for delivery or get fitted by our engine specialists at one of our garages. Our engine experts have years of experience and the ability to handle any car related issues and therefore guarantee that the excellence of used and reconditioned BMW 4 Series manual gearbox is persistent. Every manual gearbox is examined and inspected distinctly and assure that the products sold are in excellent working condition according to the manufacturer guideline and OEM Standards. Our large inventory of reconditioned gearboxes is ready to be sold at the cheapest prices online. We offer warranty on everything we sell and promise to offer you the most exceptional and premium of both worlds, quality and cost-effectiveness.
This BMW 428i came in with engine-related faults and was upgraded with a fully reconditioned N20B20B engine from our stock, restoring smooth performance and 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.
The vehicle was fitted with a replacement N20B20 engine, restoring full performance and reliability to the BMW 428i engine after internal engine failure.
BMW 420D N47D20C – Full Engine Replacement & Reconditioning
Vehicle In 10-Nov-2025
Vehicle Out 14-Nov-2025
Initial Diagnosis
Vehicle arrived with critical internal engine damage. Upon inspection, our team recommended a complete BMW 420d engine replacement using a high-quality N47 D20C engine.
BMW M4 S55B30A – Reconditioned Engine Installation
Vehicle In 20-Oct-2025
Vehicle Out 24-Oct-2025
Initial Diagnosis
Vehicle arrived with a knocking sound from the bottom end of the engine. Crankshaft and con rod bearing damage was found, requiring a complete BMW M4 engine Replacement.
