Cooling System - Water Pump Leaking/Engine Overheating

19 Water pump leaking coolant or engine overheating

19 11 20

2024897/1

February 24, 2011.





AFFECTED VEHICLES

CONDITION
One of the following conditions is present:

^ Coolant pump is leaking coolant.

^ Engine overheating without coolant leak.

TECHNICAL BACKGROUND

Replace both parts together during the same repair.

PRODUCTION SOLUTION

Improved coolant pump and thermostat.

SERVICE

Condition: Leaking water pump

1. Replace coolant pump. (Perform Step 3 below.)

2. Check service history. Determine, if thermostat part number 06E 121 111 AD was replaced in previous repair.

^ If not, perform Step 1 below. (Replace thermostat.)

^ If yes, only replace water pump.

Condition: Engine overheating (no water pump leak) - thermostat failure

Follow all steps below.





1. Replace the thermostat (Figure 1). (See Repair Manual >> Mechanics >> Rep. Gr 19 Removing and installing coolant thermostat.)





2. Check to determine whether the cooling pump (Figure 2) has a plastic housing.





3. If the coolant pump housing is plastic, also replace the Coolant pump. (See Repair Manual >> 6-cylinder direct petrol injection engine, mechanics >> Rep. Gr 19 >> Removing and installing Coolant pump.)

Per the repair manual, collect coolant in a clean container and reuse coolant during repair. Only use new coolant to top off system.








WARRANTY INFORMATION





REQUIRED PARTS AND TOOLS

ADDITIONAL INFORMATION

All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.