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Fig. 45: Identifying Water Drain
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Clean water drain (small hole in bottom part of air filter housing - arrow - ), blow out with compressed
air if necessary.
Clean air filter housing (upper and lower parts) of salt residue, dirt or leaves (clean with vacuum, if
necessary).
Check mass air flow sensor and air guide hose (clean air side) for salt residue, dirt and leaves.
Check air duct from lock carrier to air filter housing for dirt and leaves.
When installing air filter insert, ensure it is centered in mount on bottom part of of air filter housing.
Carefully place upper part of air filter housing onto lower part without great force. Ensure upper part of
air filter housing is not sitting crooked on air filter insert (note air filter insert sealing lip).
Ensure air guide hose is seated firmly on mass air flow sensor.
Tightening torque
*Note
Component
Nm
Hose clamps for air guide hoses
2.5
NOTE:
If the air filter insert is heavily soiled or soaked, dirt particles or moisture
can reach the Mass Air Flow Sensor G70 and cause an incorrect air flow
reading. This causes lack of performance because a lower injection
amount is calculated.
Always use an original air filter insert.
Use a lubricant (silicone-free) when installing intake hose.
Secure all hose connections with hose clamps that match current
standard production. ETKA
Check drain hose in bottom side of air filter or dirt and adhesion (clean, if
necessary).
2008 Audi A6 Quattro
Maintenance Maintenance Procedures
FIXYOURCAR
2:27:40 AM
Page 37