Coolant Level, Checking And Filling
Special tools and workshop equipment required
- Cooling System Tester - Adapter:V.A.G 1274/8
- Cooling System Tester:V.A.G 1274 B
The cooling system may be under pressure. There is a risk of scalding due to hot steam and hot coolant.
Scalding the skin and other parts of the body is possible.
- Wear safety gloves.
- Wear protective eyewear.
- Reduce the pressure by covering the coolant expansion tank cap with a suitable towel and carefully opening it.
-- Open the coolant expansion tank cap -arrow-.
-- Add coolant to reach 5 mm above the MAX marking.
-- Install the Cooling System Tester - Adapter:V.A.G 1274/8 -2- into the coolant expansion tank -1-.
-- Connect the Cooling System Tester:V.A.G 1274 B -3-.
-- Operate the hand pump of the cooling system tester -3- several times, until a pressure of 1.5 bar (21.76 psi) is reached.
-- Release the pressure at the cooling system tester and remove the tools.
-- Check the coolant level while the engine is running and add coolant to reach 5 mm above the MAX marking.
-- Turn off engine.
Requirement
- The coolant level must be between the MIN mark and the MAX markings when the engine is cold.
- Coolant level must be on or 5 mm above the max mark when the engine is at operating temperature.