Removing and installing thermostat for large cooling circuit

Special tools and workshop equipment required

Hose clip pliers -VAS 6362-

Special wrench -T10508-

Release tool -T10527-

Release tool -T10527/1-

Removing

• Drain coolant → Chapter.
• Move air hoses clear at air pipe.
• Detach connector from charge pressure sender -GX26-.

• Release fasteners -arrows- using release tools -T10527- and -T10527/1-.
• Remove air pipe -1-.

• Release hose clip -4- and detach coolant hose -3-.
• Remove bolts -arrows- and detach cover -2- from thermostat housing.

• Remove thermostat using special wrench -T10508-.
• Slightly push down special wrench -T10508- while turning it in -direction of arrow-.

Installing

• Insert thermostat ensuring that the centring pin of thermostat is seated in guide -arrow-.

• Install thermostat using special wrench -T10508-.
• Slightly push down special wrench -T10508- while turning it to stop in -direction of arrow-.

Installation is carried out in the reverse order; note the following:

Renew seals.

• Moisten gasket with coolant.
• Replenish coolant → Anchor.

Specified torques

→ Fig. „“Cover for thermostat to thermostat housing - tightening torque”“