Mass Air Flow Sensor: Installing

WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, 2010 Audi S5, 2009 Audi S5, and 2008 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

For problem-free operation of the Mass Air Flow (MAF) Sensor -G70- it is very important to observe the following notes and procedures.

NOTE:

If The Air Filter Element Is Very Dirty Or Soaked, Dirt Particles Or Moisture May Have Contaminated The Mass Air Flow (MAF) Sensor -G70- And May Be Causing False Mass Air Flow Values. This Results In A Reduction Of Power, Since A Lower Injection Quantity Is Calculated.

Always use an original equipment air filter element.

Use a lubricant (silicone-free) for installing the intake hose.

Secure all hose connections using hose clamps appropriate for the model type.

-- Check the Mass Air Flow (MAF) Sensor -G70- and air duct hose (intake air side) for salt residue, dirt, and leaves.

-- Check the intake ducting up to the air filter element for dirt. If any contaminants are discovered, clean the air filter housing (upper and lower sections) of salt residue, dirt and leaves (if necessary, clean by washing or vacuuming). Air filter, removing and installing. Refer to AIR FILTER ELEMENT

-- If the air filter was removed, then clean the water drain.

-- Align O-ring in air filter housing nut and carefully slide Mass Air Flow (MAF) Sensor -G70- into air filter housing.

NOTE:

Replace The O-Ring If Damaged

-- Lock both clips.

-- Install the air guide hose and tighten the hose clamp.

-- Connect the Mass Air Flow (MAF) Sensor -G70- connector.