A6 Quattro Wagon V6-3.0L (AVK) (2002)
Coolant Reservoir: All Technical Service Bulletins
Cooling System - Coolant Reservoir Appears To Be Leaking
19 Coolant reservoir appears to be leaking
19 10 07
2009959/5
June 18, 2010
Supersedes Technical Service Bulletin Group 19 number 08-18 dated November 21, 2008 for reasons listed below.
Affected Vehicles
Condition
The coolant reservoir is diagnosed to be leaking and intended to be replaced.
Technical Background
May be caused by the coolant hose -1- between coolant reservoir and radiator or the coolant hose -2- between coolant reservoir and engine which may
have internal cracks.
Internal cracks can cause coolant to get inside the coolant hose material and leak from connections to the coolant reservoir (arrows) due to the capillary
effect.
Production Solution
N/A