Coolant pump, removing and installing

WARNING: This page is about a different car, the 2008 Audi RS 4 and 2007 Audi RS 4. However, it is still accessible from the selected car via links, so may be relevant.

Removing

Remove front coolant pipe → Front coolant line, removing and installing .

Fig 1: Identifying Coolant Hose, Bolts & Coolant Thermostat Housing

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove coolant hose - 2 - on bottom of coolant thermostat housing.
Remove bolts - arrows -.
Remove coolant thermostat housing and remove coolant hose - 1 - at top of coolant thermostat housing.

Fig 2: Loosening Hose Clip At Coolant Hose

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Loosen hose clip - 1 - at coolant hose.
Remove bolts - arrows -.
Remove coolant pump housing toward front, while doing this pay attention to drive shaft for coolant pump.

NOTE:

Coolant hose can only be removed with coolant pump removed.

Fig 3: Removing Bolts & Coolant Pump From Housing

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - arrows -.
Remove coolant pump - 2 - from housing - 1 -.

Installing

NOTE:

Replace seals and O-rings.
Secure all hose connections using hose clamps appropriate for the model type .

Fig 4: Inserting New O-Rings & Coolant Pump Input Shaft In Oil Pump Mount

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Insert new O-rings - 1 - and - 3 -.
Insert coolant pump input shaft - 2 - in oil pump mount as far as stop at engine.
Slide coolant pump into mounts in upper part of oil pan.

NOTE:

To connect drive flange onto hex head of drive shaft, reach with the finger into the lower pipe connection of coolant pump and twist at impeller until coolant pump can be inserted completely.

The rest of installation is in reverse order of removal, note the following:

Install coolant thermostat housing → Coolant thermostat, removing and installing .
Install front coolant pipe → Front coolant line, removing and installing .
Fill with coolant Filling .

Torque specifications

Component	Nm
Coolant pump to housing	9
Coolant pump housing to upper section of oil pan	9