Coolant Pipes

Coolant Pipes

• Make sure when replacing the expansion tank and for maintenance work that there is always a silicate cartridge in the expansion tank, refer to the Parts Catalog. The silicate cartridge must not be removed.

Special tools, testers and auxiliary items required

• Spring Type Clip Pliers (VAS 5024 A)

Removing

- Remove the engine cove with air filter. Refer to => [ Engine Cover with Air Filter ] Engine Cover With Air Filter.

- Remove the turbocharger recirculation valve (N249) - 1 - with the housing and remove the hose. Refer to => [ Charge Air Cooler Overview ] Charge Air Cooler Overview.






- Loosen the clamp - 1 -.






- Remove the bolt - 2 -.

- Remove the noise insulation.

- Disconnect the connector - 3 -.

- Remove the bolt - 4 -, pull the pipe off the charge air cooler and remove it downward.

- Drain the coolant. Refer to => [ Coolant, Draining and Filling ] Procedures.

- Disconnect the connectors - arrows -.






- Remove the coolant hoses from the coolant pipes - arrows -.






- Remove the hose - A -, remove the retainer - B - and then remove the front coolant pipe.






- Loosen the connector - A - from the mount, remove the hose - B - and the bolts - C - and then remove the coolant pipe.






Installing

Install in the reverse order of removal.