Mass Air Flow Sensor

WARNING: This page is about a different variant/trim than selected.

-- Disconnect electrical connector -3- on Mass Air Flow (MAF) Sensor -G70-.

Fig 1: Mass Air Flow (MAF) Sensor G70 Electrical Harness Connector, Clips & Front Air Intake Connector On Lock Carrier

Courtesy of AUDI OF AMERICA, LLC

-- Remove both bolts from the Mass Air Flow (MAF) Sensor -G70- and carefully remove the Mass Air Flow (MAF) Sensor -G70- from the air filter housing guide.

Installing

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 MAF sensor and intake 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 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 ENGINE COVER WITH AIR FILTER .

Further installation is performed in reverse order.

Removing

-- Separate the electrical connector -2- for mass air flow (MAF) sensor -G70-.

Fig 1: Mass Air Flow Sensor -G70- -1- Engine Code CDMA

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ignore arrows.

-- Remove air guide hose by opening the hose clamp -1-.

-- Remove bolts -arrows-.

Fig 2: Mass Air Flow (MAF) Sensor G70 Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Carefully pull Mass Air Flow (MAF) Sensor -G70- out of guide at upper section of air filter housing.

Installing

Tightening specifications. Refer to AIR FILTER ASSEMBLY OVERVIEW .

Installation is in reverse order of removal, note the following.

For trouble-free function of the Mass Air Flow sensor, it is important to observe the following notes and perform the work procedures exactly.

NOTE:

Replace O-ring.

In the event the air filter element is severely contaminated or completely saturated, dirt particles or moisture may penetrate the MAF sensor and falsify the measured air mass value. This results in a reduction of power, since a lower injection quantity is calculated.

Always use an original equipment air filter element.

Use a silicon-free lubricant to install the air duct hose.

Secure all hose connections with hose clamps appropriate for the model.