Water Pump: Service and Repair

Remove, Install Coolant Pump

Bolt Assignment Of Coolant Pump:

DANGER:
- Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray Risk of poisoning from swallowing coolant.
- Do not open cooling system unless coolant temperature is below 90 degrees C. Open cap slowly and release the pressure. Do not pour coolant into beverage bottles.
- Wear protective gloves, protective clothing and eye protection.

1 Drain coolant at radiator

CAUTION: See notes on coolant.


2 Remove front engine compartment paneling
3 Remove poly-V-belt of supercharger
4 Remove poly-V-belt (4).
5 Unscrew bolts of belt pulley (1) of coolant pump (3)

NOTE: Installation: Tighten bolts of belt pulley (1) fully.

6 Take off belt pulley of coolant pump (2)

NOTE: Installation: Screw in bolts only by hand, do not tighten.

7 Remove cap of guide pulley of compressor poly V-belt.

CAUTION: Carefully lever off cap with a slotted screwdriver in order to avoid damaging the guide pulley.

8 Unscrew bolt of guide pulley of compressor poly-V-belt
9 Take off guide pulley of compressor poly-V-belt
10 Unscrew bolts of tensioning pulley of compressor poly-V-belt

NOTE:
- Installation: On a new timing case cover the threads for fastening the tensioning device compressor are not pre-tapped.
- For this reason on a new timing case cover, new self-tapping screws have to be used for fastening.
- If the timing case cover has not been replaced, observe torque on pre-tapped threads.

11 Take off tensioning pulley of compressor poly-V-belt (5)
12 Disconnect coolant hose (6) and coolant hose (7)

CAUTION: Check condition of coolant hoses and hose clamps. Install new parts if necessary in order to avoid a loss of coolant.

13 Slacken bolt M10x110 (4g) of alternator

NOTE:
- Installation: On a new timing case cover the threads for fastening the alternator are not pre-tapped.
- For this reason on a new timing case cover, new self-tapping screws have to be used for fastening.
- If the timing case cover has not been replaced, observe torque on pre-tapped threads.

14 Unbolt coolant pump (3) at timing case cover and remove

CAUTION: See notes on application of sealant to coolant pump housing.

NOTE:
- Installation: On a new timing case cover the threads for fastening the coolant pump are not pre-tapped.
- For this reason on a new timing case cover, new self-tapping screws have to be used for fastening.
- If the timing case cover has not been replaced, observe torque on pre-tapped threads.

15 Install in the reverse order
16 Inspect cooling system for leaks.