Removal and Replacement
Remove/install coolant circulation pump1 Coolant hose
2 Coolant hose
3 Circulation pump
4 Connector
5 Nut
Remove/Install
1.1 Remove front bumper
Models 901.0/3/4, 902.0/3/4, 903.0/3/4, 904.0/3/4
1.2 Remove front grille
Models 901.6, 902.6, 903.6, 904.6 up to model year 2003
Models 901.6, 902.6, 903.6, 904.6 as of model year 2003
2.1 Remove left headlamp
Models 901.6, 902.6, 903.6, 904.6
3 Pinch off coolant hoses (1, 2)
4 Disconnect electrical connector (4) from circulation pump (3)
5 Disconnect coolant hoses (1, 2) from circulation pump connecting pipes Collect escaping coolant in a clean vessel.
Installation: pour any escaped coolant back into coolant and heater circuit after installation of the circulation pump.
6 Unscrew nuts (5).
7 Remove circulation pump (3) from heater unit bracket
8 Install in the reverse order
Danger:
Risk of accident from vehicle starting off by itself when engine running.
Risk of injury as working around the engine during startup or while running may result in contusions and burns
Secure vehicle to prevent it from moving off by itself.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.
9 Start engine and bleed cooling and heating system.
Allow engine to warm up for approx. 1 min at alternating speeds.
10 Switch off engine
11 Check coolant and top up if necessary
12 Check coolant hoses on circulation pump for signs of leaks
13 Check auxiliary heater for proper operation