Installing The Thermostat

Fig 1: Front Timing Belt Cover

Courtesy of VOLVO CARS OF NORTH AMERICA.

NOTE:

Clean all mating surfaces. Ensure that no dirt enters the fluid ducts.

NOTE:

Ensure that the timing belt cover is in position before the cover is pressed in against the rear timing belt cover to prevent damage to the nipple on the thermostat housing.

Install

the new thermostat
the cover of the thermostat housing with a new gasket . Tighten to 17 Nm
the front timing belt cover. The mudguard over the right drive shaft boot may come loose. If this happens, secure it from underneath
the screw for the front timing belt cover. Tighten to 12 Nm . Applies only to B6xx4T Cars with chassis number 203779- see Installing the front timing cover .

Fig 2: Identifying Plastic Hoses Between Turbocharger, Charge Air Cooler & Air Cleaner/Turbocharger

Courtesy of VOLVO CARS OF NORTH AMERICA.

the plastic hoses between the turbocharger (TC) / charge air cooler and the air cleaner (ACL) / turbocharger (TC). Applies only to B6xx4T engines .

Fig 3: Identifying Expansion Tank

Courtesy of VOLVO CARS OF NORTH AMERICA.

the servo reservoir. Check that the hoses are correctly positioned
the engine stabilizer brace
the screws holding the engine stabilizer brace to the suspension turrets. Tighten to 50 Nm
the screw holding the engine stabilizer brace to the bracket on the engine. Tighten to 80 Nm
the clamp holding the return hose for the power steering.

Carry out a function test

Fill with coolant.

Install the cap on the expansion tank.

Test drive the engine until the thermostat has opened.

Top up the coolant if necessary.