Cooling System, Flushing: Notes

Special Tools And Workshop Equipment Required 

• Coolant Flushing and Filling Device:VAS531007 
• Cooling System Charge Kit:VAS6096 
• Cooling System Tester - Adapter:VAG1274/8 
• Hose Clip Pliers:VAS6362 
• Refractometer:T10007A 
• Compressed air connector with 7 to 10 bar (102 to 145 PSI) pressure
• Two hose clamps up to 25 mm

Old coolant is replaced with new coolant during the flushing procedure.

• The coolant has either developed a more intense color or become discolored.
• The coolant has an unnatural or unusual odor.
• Particles are visible in the coolant.
• Deposits have accumulated in the coolant expansion tank.

TIP: 

• Coolant has drained from flushing. Then the cooling system is filled with distilled water.
• The cooling system is then flushed with approximately 12 liters of distilled water. Afterward the distilled water is replaced with coolant (mixture ratio of 50:50).
• The cooling system is bled with the Vehicle Diagnostic Tester after changing the coolant.
• Used coolant cannot be used again.
• Brief instructions can be found here. Refer to QUICK REFERENCE GUIDE FOR FLUSHING COOLING SYSTEM . Only the essential procedural steps are listed in the quick reference guide. The brief instructions can be printed and checked off during the procedure.