Cooling system, draining and filling: Notes
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, 2000 Volkswagen Cabrio, 1999 Volkswagen Jetta, and 1999 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.
- Anti-freeze and coolant additives marked "In accordance with TL VW774 C" prevent freezing, corrosion damage, scale formation and raises the coolant's boiling point.
- The high boiling point of the coolant mixture helps improve engine efficiency when operating at full load, particularly in tropical climates.
- The cooling system is filled for use year-round with a mixture of water and anti-freeze coolant additive.
- If the engine coolant radiator, heater core, cylinder head or cylinder head gasket are replaced, completely replace engine coolant. Do not re-use old coolant.
WARNING:
The cooling system is pressurized when the engine is warm. When opening the expansion tank, wear gloves and other appropriate protection, cover the cap with a cloth and open carefully to relieve system pressure slowly.
CAUTION:
Dispose of used coolant properly.
CAUTION:
- A new "G12" coolant additive, recognized by its red color, has been introduced during m.y. 1997, replacing the "G11" used previously.
- The "G11" and "G12" coolant additives are NOT interchangeable, and must NEVER be mixed. Use only water or "G12" coolant additive G 012 A8D A1 to top up cooling systems filled with "G12."
- Contamination of "G12" with other coolants can be identified by discoloration (brown, purple, etc.), and foamy deposits in the radiator or expansion tank. If contaminated, the system must be drained and flushed immediately.
- "G12" (Part No. G 012 A8D A1) may also be used in older vehicles, but only if the cooling system is drained and flushed as described below.
- Part numbers listed are for reference only. Always check with the Parts department for the latest information.