BMW Garage
BMW High-Mileage Engine Rebuild
A comprehensive rebuild for BMW engines that have covered significant mileage. Full strip-down, inspection, machining assessment, and replacement of every wear item.
15+ yrs
BMW specialists
1,800+
engines rebuilt
12 mo
unlimited-mileage warranty
What a High-Mileage BMW Engine Rebuild Involves
When a BMW engine has covered high mileage – typically over 100,000 miles – wear is distributed across the entire unit, not just a single component. A high-mileage rebuild addresses every area of wear, restoring the engine to a serviceable condition with a 12-month unlimited-mileage warranty.
- Full strip-down to bare block and cylinder head
- Comprehensive measurement of every component against factory service limits
- Machining assessment – boring, honing, and grinding where required
- Replacement of all wear items: bearings, piston rings, gaskets, seals, timing components
- Ancillary attention: oil pump, water pump, and other ancillaries assessed and replaced if worn
- Reassembly with new fasteners, torqued to factory specifications
See our full engine rebuild process →
High-Mileage Rebuild Pricing
4-Cylinder: from £1,900 6-Cylinder: from £2,800 V8: from £4,500 Performance / M-Sport (S54, S55, S58, S63, S65): from £5,500
Every rebuild includes a 12-month unlimited-mileage warranty. Recovery from £70. Turnaround typically 3–5 working days.
Inside our workshop
BMW High-Mileage Engine Rebuild
Applicable BMW Models & Engines
We rebuild high-mileage engines across the full BMW range. Below are the most common model families we see in the workshop for this service.
[2 Series](/bmw-2-series-engines)
[3 Series](/bmw-3-series-engines)
[4 Series](/bmw-4-series-engines)
[5 Series](/bmw-5-series-engines)
[X3](/bmw-x3-engines)
- xDrive20d
- xDrive30i
- X3 M40i
Our High-Mileage Rebuild Process
- 01
Arrival & Inspection
We inspect the vehicle on arrival and confirm the scope of the rebuild.
- 02
Strip-Down
Full disassembly to bare block and head.
- 03
Measurement & Assessment
Every component measured; machining needs determined.
- 04
Replacement & Machining
Wear items replaced; block bored/honed as needed.
- 05
Assembly & Testing
Reassembled with new fasteners, tested before refit.
- 06
Refit & Road Test
Engine refitted, road-tested, and signed off.
Why Choose BMW Garage
- Established 2009 – over 15 years of BMW engine expertise
- Full in-house machining and assembly
- 12-month unlimited-mileage warranty on every rebuild
- Recovery service from £70 – we collect your BMW
- 3-5 day turnaround on most rebuilds
- Meet our workshop →
How It Works
- 01
Contact us – call 0203 488 4649 or get a quote online
- 02
Inspection – we assess your BMW and confirm the rebuild scope
- 03
Rebuild – full strip-down, machining, and assembly
- 04
Refit & Test – engine refitted, road-tested, and warranted
Frequently Asked Questions
What mileage is considered high for a BMW engine?+
We typically consider over 100,000 miles as high mileage. However, BMW engines are known for strong blocks that can handle multiple rebuilds – the key is a comprehensive inspection to determine what can be machined and what must be replaced.
What components are replaced during a high-mileage rebuild?+
All wear items are replaced: bearings, piston rings, gaskets, seals, timing components, and fasteners. Ancillaries like the oil pump and water pump are assessed and replaced if worn.
How long does a high-mileage rebuild take?+
Typically 3–5 working days, depending on the extent of machining required. We aim to keep you mobile with a courtesy vehicle where possible.
What warranty do you offer?+
Every rebuild comes with a 12-month unlimited-mileage warranty covering parts and labour. Recovery from £70 is available if needed.