volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Removing and installing radiator > < Coolant hose connection diagram
4-Cyl. injection engine (4 valve, roller rocker finger), Mechanics
Removing and installing parts of cooling system
Draining and filling cooling system

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

 
W00-0512
  • ◆ V.A.G 1306 Drip tray
 
W00-0464
  • ◆ V.A.G 1921 Pliers for spring-type clips
  • ◆ Anti-freeze tester

Draining

  • ‒ Remove engine cover.
 
A10-0118
  • ‒ Remove cap from coolant expansion tank.
  • ‒ Remove centre insulation tray:

=> General body repairs; Repair group 50; Body front; Assembly overview

  • ‒ → To drain coolant from radiator remove drain plug -arrow-.

Note:

Observe disposal regulations!

Filling

Notes:

  • ◆ Only use coolant additive G 12 in accordance with TL VW 774 F.
    Distinguishing feature: coloured violet
  • ◆ G 12 violet (in accordance with TL VW 774 F) can be mixed with the previous coolant additive G 12 red!
  • ◆ G 12 and coolant additives marked "In accordance with TL VW 774 F" prevent frost and corrosion damage, scaling and also raise boiling point of coolant. For this reason the system must be filled all year round with frost and corrosion protection additives.
  • ◆ Because of its high boiling point, the coolant improves engine reliability under heavy loads, particularly in countries with tropical climates.
  • ◆ Protection against frost must be assured to about -25 °C (in arctic climatic countries to about -35 °C).
  • ◆ The coolant concentration must not be reduced by adding water even in warmer seasons and in warmer countries. The anti-freeze ratio must be at least 40 %.
  • ◆ If for climatic reasons a greater frost protection is required, the amount of G 12 can be increased, but only up to 60 % (frost protection to about -40 °C), as otherwise frost protection is reduced again and cooling effectiveness is also reduced.
  • ◆ If radiator, heat exchanger, cylinder head or cylinder head gasket is replaced, do not reuse old coolant.

Recommended mixture ratios:

Frost pro- tection to

Anti-freeze amount

G 121)

Water1)

-25 °C
-35 °C

40 %
50 %

2.4 ltr.
3.0 ltr.

3.6 ltr.
3.0 ltr.

     1)     The quantity of coolant can vary depending upon the vehicle equipment.

  • ‒ Screw drain plug into radiator.

With cooling system charging unit VAS 6096

  • ‒ Fill coolant circuit using cooling system charging unit VAS 6096.

=> Operating instructions for cooling system charging unit VAS 6096

 
V19-0579

Not using cooling system charging unit VAS 6096

  • ‒ → Fill with coolant up to max. mark on expansion tank.

With and without cooling system charging unit VAS 6096

  • ‒ Fit expansion tank cap.
  • ‒ Run engine until radiator fan cuts-in.
  • ‒ Check coolant level and replenish as necessary. When the engine is at normal operating temperature, the coolant level must be on the max. mark, when the engine is cold, between the min. and max. marks.

Removing and installing radiator > < Coolant hose connection diagram