Air Injection: Locations
Component Overview
1 - From air filter housing
2 - Secondary Air Injection (AIR) Pump Motor -V101-
3 - Secondary Air Injection (AIR) Pump Relay -J299-
4 - Motronic Engine Control Module (ECM) -J220-
5 - Right combination valve for Secondary Air Injection (AIR) system
6 - Secondary Air Injection (AIR) solenoid valve -N112-
7 - Check-valve
- Installation position (light/dark side): Arrow points in direction of flow, as shown in figure.
8 - To intake manifold
9 - Left combination valve for Secondary Air Injection (AIR) system
10 - Vacuum reservoir
- Component location: Under wheel housing liner in left front wheel housing
Fig. 1 Installation position of Secondary Air Injection (AIR) Solenoid Valve -N112-
- Bolted to holding plate for solenoid valves at rear of engine (arrow).
Fig. 2 Installation position of Secondary Air Injection (AIR) Pump Motor -V101-
- At right front in engine compartment below air filter housing
1 - Secondary Air Injection (AIR) Pump Motor -V101-
2 - Electrical harness connector for Secondary Air Injection (AIR) Pump Motor -V101-
Fig. 3 Installation position of Secondary Air Injection (AIR) Pump Relay -J299-
- In E-box, plenum chamber
2 - Secondary Air Injection (AIR) Pump Relay -J299-
B - Installation location of fuse S130 for Secondary Air Injection (AIR) pump
Fig. 4 Combination valve for Secondary Air Injection (AIR) system
- At rear of cylinder heads
NOTE: Right valve is displayed in illustration.
Secondary Air Injection (AIR) Pump Motor -V101-, removing and installing
- Remove cover -1- in engine compartment (right side).
- Remove bolts (arrows).
- Detach Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- -1- at air guide.
- Remove air guide -2-.
- Remove air filter housing (arrows).
- Remove both bolts on secondary Air Injection (AIR) pump bracket, which are accessible from top.
- Remove bolts or quick-release screws -1- and -2- and remove front sound insulation.
- Disconnect electrical harness connector -3-.
- Disconnect air hoses -1- and -2-.
- Remove bolts for secondary Air Injection (AIR) pump bracket, which are accessible from bottom.
- Remove Secondary Air Injection (AIR) Pump Motor -V101- with bracket.
- If necessary, separate Secondary Air Injection (AIR) Pump Motor -V101- from bracket.
Installing
Installation is performed in reverse order of removal.
Tightening torques
Component Nm
Motor for Secondary Air Injection (AIR)
to bracket 10 Nm
Bracket for motor for Secondary Air Injection
(AIR) to chassis 10 Nm
Removing and installing left combination valve for Secondary Air Injection (AIR) system
- Remove rear engine cover (arrows).
- Remove bolts for holding plate -3- for solenoid valves (arrows).
- Disconnect intake air hose -1- at Mass Air Flow (MAF) sensor -G70-.
- Remove hose -4- of crankshaft housing ventilation from air duct -2-.
- Remove bolt (arrow) and disconnect air duct -2- at throttle valve control module.
- Disconnect hose -1- from air duct.
NOTE: Illustration depicts air guide with the removed engine from rear.
- Remove cover -1- in engine compartment (left side).
- Clamp coolant hose -2- using 3094 hose clamps and disconnect coolant hose from coolant reservoir.
- Remove coolant reservoir (arrow)
- Disconnect electrical wiring to Engine Coolant Level (ECL) Warning Switch -F66- at bottom of expansion tank.
- Set coolant expansion tank with connected coolant hoses -1- and -3- aside.
- Disconnect electrical harness connectors -1- and -2- at Camshaft Position (CMP) Sensor 2 -G163- and Camshaft Position (CMP) Sensor 4 -G301-.
- Disconnect hose -3- from crankcase ventilation at cylinder head cover.
- Remove bolts -1- at flange of combination valve for Secondary Air Injection (AIR) system.
- Loosen nut -3- by several turns.
- Remove bolts -2- and disconnect vacuum hose (arrow).
- Remove combination valve.
NOTE: Illustration is shown with engine removed.
Installing
Installation is in reverse order of removal. Note the following:
NOTE: Replace gaskets and O-rings.
- Fill with coolant.
Tightening torques
Component Nm
Combination valve to cylinder head 10 Nm
Connector tube to Combination valve 10 Nm
Connector tube to Coolant pipe 10 Nm
Removing and installing right combination valve for Secondary Air Injection (AIR) system
- Remove rear engine cover (arrows).
- Remove cover -1- in engine compartment (right side).
- Remove bolts for holding plate -3- for solenoid valves (arrows).
- Disconnect intake air hose -1- at Mass Air Flow (MAF) sensor -G70-.
- Remove hose -4- of crankshaft housing ventilation from air duct -2-.
- Remove bolt (arrow) and disconnect air duct -2- at throttle valve control module.
- Disconnect hose -1- from air duct.
NOTE: Illustration depicts air guide with the removed engine from rear.
- Remove bolts -1- and -2- and remove combination valve.
- Disconnect vacuum hose (arrow).
Installing
Installation is in reverse of removal. Note the following:
NOTE: Replace gaskets.
Tightening torques
Combination valve to cylinder head 10 Nm
Connecting tube to combination valve 10 Nm