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Head Gasket Replacement in Vantaa
A blown head gasket mixes coolant with oil — early repair saves the whole engine.
White smoke from a warm exhaust is the classic head gasket symptom — don't keep driving in that state.
Head gasket replacement pricing:
- Head gasket replacement (inline engine) – from 1 059 €
- V-engine head gasket (both banks) – from 1 800 €
- Cylinder head machining at a specialist – from 250 €
- All head bolts and gaskets renewed – included
- Cooling system pressure test – included
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Head gasket replacement
Price includes gasket and labour. If the cylinder head is found warped, machining is a separate additional charge.
from1059 €
When the head gasket needs replacing
The head gasket is a metal-elastomer structure clamped between the cylinder block and cylinder head that seals the combustion chambers, coolant passages and oil passages from each other. When the gasket fails, combustion gases enter the cooling system (bubbles appear in the expansion tank with the engine running), coolant enters the combustion chamber (copious white vapour from the exhaust), or — the worst case — oil and coolant mix and the dipstick shows a light-brown emulsion. The engine must not be started in that state, because lubrication capability has collapsed. The most common causes are repeated overheating (leaking radiator, faulty thermostat, coolant loss), cracks in the cylinder head from earlier damage, or a poorly executed performance tune that has raised boost and combustion pressures beyond the gasket's tolerance. Catching the problem early saves thousands — a delayed repair can melt the crankshaft bearings and force a full engine swap.
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Why do head gaskets fail?
Overheating is by far the most common cause of gasket failure. The metal-elastomer structure tolerates only so much heat, and a single serious temperature spike can soften the gasket enough that it leaks after just a few kilometres. Gasket failure is often the result of a longer-term problem, though — for example, a slowly leaking radiator whose coolant loss means the engine constantly runs hotter than normal. A third common cause is a cracked cylinder head: internal cracks in aluminium heads aren't necessarily visible from outside, but they allow combustion gas to penetrate coolant passages. That's why head straightness measurement and pressure testing for cracks are always part of the repair — otherwise the fault recurs soon after a new gasket is fitted.
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