S4 Quattro Sedan V6-3.0L SC (CCBA) (2010)
Thermostat: Customer Interest
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.