VW Golf 4 coolant: Quantities, approvals and the right antifreeze
Volkswagen Golf GTI Mk IV Coolant Flush and Replacement (1999-2005) - Pelican Parts DIY Maintenance Article
Does anyone know where I can get one of these coolant hoses for a mk4 golf 1.8t? It's this one that runs under the sensor connected to the upper rad hose :
A Guide to OEM Volkswagen Coolant | VW Parts Vortex
DIY -- changing the thermostat | VW Vortex - Volkswagen Forum