BMW E46 M3 S54 Headgasket replacement
We treat out BMW E46 M3 Headgasket replacements as a perfect opportunity to refresh pretty much all the cylinder head water, oil, air O-rings, Seals, Gaskets.
We provide an extremely comprehensive overhaul when carrying out the common BMW E46 M3 S54 headgasket replacement.
| Part description | Qty |
| Headgasket | 1 |
| Head bolt set | 1 |
| Head dowels | 2 |
| Vanos supply O-ring Front | 1 |
| Vanos supply O-ring Rear | 1 |
| Vanos Supply / Cam Bridge Green O-ring | 1 |
| Camshaft sensor O-rings | 2 |
| Exhaust Chain guide bolt sealing washer | 1 |
| Inlet Chain guide bolt sealing washer | 1 |
| Vanos pressure valve filter | 1 |
| Vanos pressure valve filter O-ring | 1 |
| Vanos pressure valve body O-ring | 1 |
| Vanos steel gasket | 1 |
| Vanos oil pipe copper washers | 4 |
| Oil drain down tube copper washers | 2 |
| Cam hub torx bolts for sprockets | 12 |
| Vanos gearbox hex bolts | 12 |
| Head chain guide rail | 1 |
| Head chain guide rail O-ring | 1 |
| Chain tensioner sealing washer | 1 |
| Blue BMW Antifreeze | 3L |
| Thermostat lower O-ring | 1 |
| Thermostat upper O-ring | 2 |
| Vacuum rail hose clamp | 1 |
| Fuel supply pipe O-ring | 1 |
| Water rail to cylinder head O-rings | 3 |
| Rocker Cover Gasket (outer) | 1 |
| Rocker Cover spark plug gaskets x6 (inners) | 6 |
| Rocker Cover Nut Seal Rings x15 | 15 |
| Throttle body to head O-ring | 6 |
| Exhaust Manifold Gaskets x6 | 6 |
| Air emissions valve to head gasket | 1 |
Strongly recommended and sometimes mandatory depending on the condition of your Cylinder Head.
(This is only known once the Head is removed from your engine):
Cylinder Head Service - Stage 1
Includes;
Chemical Bath
Pressure Test
Straightness Check
Re-surface
Collection/Delivery to/from Machine Shop
OR
Cylinder Head Service - Stage 2
Stage 1 items PLUS:
Valve Stem Oil Seals
Valve & Seat Lapping
PLEASE NOTE:
We're finding some E46 M3's with extremely dirty/stained/clogged/tarnished Cylinder Heads (due to incorrect oil grade, poor oil quality, or extended service intervals).
Some vehicles require the Cylinder Head to be chemically cleaned in a Hot Wash bath twice (or even three times).
Optional Extra:
We are also able to thoroughly clean the Rocker Cover in the Hot Wash tank.
(Some vehicle need this, and some don't. We can advise once we've removed the Cover).
To make a booking for this service we require a £500 deposit.