audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Left Front Exhaust Pipe With Primary and Main Catalytic Converter, Removing and Installing|Page 4492 > < Left Front Exhaust Pipe With Primary and Main Catalytic Converter, Removing and Installing|Page 4490
Page 2
background image

-

Disconnect connector -3- at Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- item -2-. 

-

Detach solenoid valve from holder. 

-

Disconnect connector -4- at mass air flow sensor 

-

Turn hose -1- to secondary air pump counter-clockwise and detach. 

-

Remove air hose -5- at mass air flow sensor 

-

Remove bolt (arrow).

-

Remove air cleaner housing with mass air flow sensor.

-

Detach air hose from throttle valve control module (arrow).

-

Disconnect air hose (arrow) to secondary air system combination valves.

-

Take connectors -1- to -4- out of holder on right of bulkhead. 

-

Disconnect connectors -1 -and -2-. 

-

Move wires clear of Heated Oxygen Sensor (H02S).

Left Front Exhaust Pipe With Primary and Main Catalytic Converter, Removing and Installing|Page 4492 > < Left Front Exhaust Pipe With Primary and Main Catalytic Converter, Removing and Installing|Page 4490