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Replacing Valve Stem Seals

Model: (Various brands) Various

You will see the main steps to disassemble and replace the valve stem seals. This operation is performed when the engine's behaviour is no longer normal, with loss of power, compression, and sometimes your car may not start; this is because the seals wear out, allowing oil to enter the combustion chamber: additionally, there is a risk of breaking the valves themselves. You need to disassemble the cylinder head with the camshaft and remove the valves using specific tools designed for valve disassembly. The cost of this operation can be high; it largely depends on the type of car.

Updated on 22 March 2026 by ScegliAuto

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How to Reset the Central Locking of the Volkswagen Golf 4?

If the central locking system of the Volkswagen Golf 4 is not working, it is likely necessary to reset the system: to do this, open the driver's door and detach the side panel of the dashboard next to the steering wheel. Under this panel, you will find the fuses, including the one for the central locking, which is indicated in the manual as number 14. To reset the system, remove this fuse from its housing, then reinsert it or replace it with a new one of the same amperage: this will reset the central locking system.

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