Work Sequence

• Screw drain plug into radiator and secure coolant hose on oil cooler connection.

Not using coolant system charging unit VAS 6090 

• Fill coolant slowly up to upper hatched field mark (arrow) on expansion tank.
Fig 1: Locating Expansion Tank Upper Hatched Field Mark
Courtesy of VOLKSWAGEN UNITED STATES, INC.

Using coolant system charging unit VAS 6096 

• Screw adapter V.A.G 1274/8 onto expansion tank.
• Fill cooling system using coolant system charging unit VAS 6096: See instruction manual for coolant system charging unit VAS 6096

With and without coolant system charging unit VAS 6096 

• Seal expansion tank.
• Switch off heater and air conditioner.
• Start engine and maintain an engine speed of about 2000 RPM for approx. 3 minutes.
• Run engine until coolant fan starts.
• Switch off ignition.

• Check coolant level and top off coolant level if necessary:

  Coolant level must be at upper hatched field mark when engine is at operating temperature (arrow).

  Fig 2: Locating Expansion Tank Upper Hatched Field Mark

  Courtesy of VOLKSWAGEN UNITED STATES, INC.

  When engine is cold coolant level should be near middle of hatched field.