Section 146 (3.0L - Exhaust System, Emission Controls, Generic Scan Tool Engine Codes: AVK, BGN)
WARNING: This page is about a different car, the 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- Exhaust system, Emission controls
- Exhaust system components, removing and installing
- Notes
- Exhaust system for vehicles with Front Wheel Drive (FWD) - Component overview
- Exhaust system for vehicles with All Wheel Drive (AWD) - Component overview
- Notes
- Installed position of front clamping sleeves
- Installed position of rear clamping sleeves
- Individual left mounting components for vehicles with manual transmission
- Individual right mounting components for vehicles with manual transmission
- Individual left mounting components for vehicles with automatic transmission 01V
- Individual right mounting components for vehicles with automatic transmission 01V
- Individual left mounting components for vehicles with automatic transmission 01J
- Individual right mounting components for vehicles with automatic transmission 01J
- Three Way Catalytic Converter (TWC), checking
- Oxygen sensors before catalytic converter, removing and installing
- Oxygen sensors behind catalytic converter, removing and installing
- Left front exhaust pipe with catalytic converter, removing and installing (vehicles with manual transmission)
- Right front exhaust pipe with catalytic converter, removing and installing (vehicles with manual transmission)
- Left front exhaust pipe with catalytic converter, removing and installing (vehicles with automatic transmission 01J)
- Right front exhaust pipe with catalytic converter, removing and installing (vehicles with automatic transmission 01J)
- Left front exhaust pipe with catalytic converter, removing and installing (vehicles with automatic transmission 01V)
- Right front exhaust pipe with catalytic converter, removing and installing (vehicles with automatic transmission 01V)
- Align exhaust system tension-free (vehicles with front wheel drive)
- Align exhaust system tension-free (vehicles with all wheel drive)
- Check exhaust system for proper seal
- Secondary air system
- Notes
- Principle
- Function
- Component overview
- Notes
- Component location of Secondary Air Injection (AIR) Solenoid Valve -N112-
- Component location of Secondary Air Injection (AIR) Pump Motor -V101-
- Component location of Secondary Air Injection (AIR) Pump Relay -J299-
- Combination valve for Secondary Air Injection (AIR) system
- Secondary Air Injection (AIR) Pump Motor -V101-, removing and installing
- Removing and installing left combination valve for Secondary Air Injection (AIR) system
- Removing and installing right combination valve for Secondary Air Injection (AIR) system
- Checking secondary air system for proper seal
- Combination valves for Secondary Air Injection (AIR) system, checking function and for proper seal
- Secondary Air Injection (AIR) Solenoid Valve -N112-, checking
- Secondary Air Injection (AIR) Pump Relay -J299- and activation, checking
- Exhaust system components, removing and installing