BMW Garage
BMW Cylinder Head Repair & Rebuild
Professional cylinder head overhaul for all BMW engines, including VANOS service, head resurfacing, and full gasket replacement.
15+ yrs
BMW specialists
1,800+
engines rebuilt
12 mo
unlimited-mileage warranty
What Cylinder Head Repair & Rebuild Involves
Our cylinder head service is a complete overhaul of the top end of your BMW engine. We follow a precise process to restore sealing, compression, and valve timing to factory standards.
- Head removal – the cylinder head is carefully lifted from the engine block.
- Full strip-down – all components (valves, springs, retainers, camshafts) are disassembled.
- Inspection and measurement – the head is checked for warpage, cracks, and wear; valve guides and seats are measured with precision tools.
- Machining (skimming) – the head is resurfaced to ensure a perfectly flat sealing surface.
- Valve work – valves are ground or replaced, new stem seals fitted, and seats recut or replaced.
- Reassembly with new gaskets and seals – including head gasket, camshaft seals, and all necessary O-rings.
- VANOS service – on engines equipped with BMW's variable valve timing, the VANOS unit is serviced during head work to maintain optimal performance.
All work is carried out in our Essex workshop using specialist equipment and genuine or OEM-quality parts.
Cylinder Head Rebuild Pricing
Starting from — 4-cylinder engines: £1,900 6-cylinder engines: £2,800 V8 engines: £4,500
Prices are for a full cylinder head rebuild including parts and labour. Final cost depends on engine type, condition, and any additional machining required. See pricing disclaimer.
Inside our workshop
BMW Cylinder Head Repair & Rebuild
Applicable BMW Models & Engines
Cylinder head repair and rebuild is available across the full BMW range – from 1 Series to X7, and all M-performance variants. Below are the key model families and engine groups we cover.
[2 Series](/bmw-2-series-engines)
[3 Series](/bmw-3-series-engines)
[4 Series](/bmw-4-series-engines)
[5 Series](/bmw-5-series-engines)
[6 Series](/bmw-6-series-engines)
[7 Series](/bmw-7-series-engines)
- 730d/740d
- 730i/740i
- 750i
[8 Series](/bmw-8-series-engines)
X Series & Z4
M-Performance
We also work on all BMW engine families, including:
Our Cylinder Head Rebuild Process
- 01
Removal & Strip-down
The head is removed from the engine and fully disassembled – valves, springs, retainers, and camshafts are taken out.
- 02
Inspection & Measurement
We measure for warpage, cracks, and wear; valve guides and seats are checked with dial gauges and micrometers.
- 03
Machining (Skimming)
The head is resurfaced on a precision machine to ensure a perfectly flat mating surface.
- 04
Valve Work
Valves are ground or replaced, seats recut or replaced, and new stem seals fitted.
- 05
VANOS Service
Where applicable, the VANOS unit is serviced to ensure correct variable valve timing.
- 06
Reassembly
The head is reassembled with new gaskets, seals, and O-rings, then torqued to BMW specifications.
- 07
Final Testing
We perform leak and pressure tests before the head is refitted to the vehicle.
Get a Cylinder Head Rebuild Quote
Or contact us directly – we'll discuss your BMW's cylinder head repair requirements in detail.
Why Choose BMW Garage for Cylinder Head Work
- Specialist BMW workshop with over a decade of experience
- All work carried out in-house – no subcontracting
- Precision machining using professional equipment
- VANOS servicing integrated into every applicable rebuild
- 12-month unlimited-mileage warranty on all work
- Transparent fixed-price quotes – no hidden extras
- Nationwide engine recovery available if your car is off the road
How the Cylinder Head Repair Service Works
- 01
1. Contact Us
Call, WhatsApp, or email us with your BMW's details and symptoms.
- 02
2. Inspection & Quote
We inspect the head and provide a fixed-price quote for the rebuild.
- 03
3. Rebuild
We carry out the full cylinder head overhaul in our workshop.
- 04
4. Refit & Test
The head is refitted to your engine and tested before collection.
Related Services
- Full BMW Engine Rebuild
- Diesel Timing Chain Repair
- Petrol Timing Chain Repair
- Engine Inspection & Assessment
- Engine Replacement
- Oil Leak & Gasket Repair
Read our full guide to BMW engine rebuilds and what we check on every rebuild.
Frequently Asked Questions
What does a BMW cylinder head rebuild include?+
It includes removal, full strip-down, inspection, head resurfacing (skimming), valve grinding or replacement, new valve stem seals, seat recutting, VANOS service (where applicable), reassembly with new gaskets and seals, and final testing.
How long does cylinder head repair take?+
Typical turnaround is 3–5 working days, depending on the extent of machining required and parts availability. We will give you a clear timeline when you bring your vehicle in.
Do you service VANOS during the head rebuild?+
Yes, for all BMW engines with VANOS (most modern models), we service the unit as part of the cylinder head overhaul to ensure correct variable valve timing and engine performance.
Is the cylinder head skimmed on every rebuild?+
We always measure the head for warpage. If it is out of specification, we resurface it to restore a perfectly flat sealing surface. This is a standard part of our process.
What warranty do you offer on cylinder head work?+
All cylinder head rebuilds come with a 12-month unlimited-mileage warranty covering parts and labour.