Audi A6 Quattro 2008 Maintenance Procedures page 36

Fig. 44: Identifying Electrical Connector On Mass Air Flow Sensor
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Disconnect electrical connector - arrow - on Mass Air Flow (MAF) Sensor G70.
Remove right upper part of air filter housing.
Remove air filter insert.
Installing
Installation is done in reverse sequence while observing the following.
For proper mass air flow sensor function, it is important to observe the following notes and perform the
procedure exactly.
NOTE:
If the air filter insert is heavily soiled or soaked, dirt particles or moisture
can reach the Mass Air Flow Sensor 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.
The air filter housing must be clean.
Secure all hose connections with hose clamps that match current
standard production Parts Catalog.
When cleaning air filter housing with compressed air, observe the
following: To avoid malfunctions, cover critical air carrying components
such as Mass Air Flow (MAF) sensor, air duct, etc. with a clean cloth.
Observe waste disposal regulations!
FIXYOURCAR
2008 Audi A6 Quattro
Maintenance Maintenance Procedures
2:27:40 AM Page 36