Air Cleaner Housing: Locations
Fuel Injection System, Servicing
Component Locations Overview
1 - Heated Oxygen Sensor (HO2S) -G39-, 50 Nm
- Component location: In front exhaust pipe
2 - Connector
- Gold plated terminals
- Black, 6-pin
- For Heated Oxygen Sensor (HO2S) -G39-and Oxygen Sensor (O2S) Heater -Z19-
- Component location: Right on underside of vehicle
3 - Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130-, 50 Nm
- Component location: Behind Three Way Catalytic Converter (TWC) -G130-
4 - Connector
- Black, 4-pin
- Terminals 3 and 4 gold plated
- For Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- and Oxygen Sensor (O2S) Heater 1 -Z29-
- Component location: Right on underside of vehicle
5 - Knock Sensor (KS) 1 -G61-
- Component location: Between cyl. 1 and cyl. 3, item 7
6 - Connector
- For Motronic Engine Control Module (ECM) -J220-
- Disconnect or connect only with ignition switched off
- Release to disconnect
7 - Motronic Engine Control Module (ECM) -J220-
- Component location: In plenum chamber
8 - Clutch Vacuum Vent Valve Switch -F36-, Brake Light Switch -F- and Brake Vacuum Vent Valve Switch -F47-
- Component location: In left footwell
- Checking signal from Clutch Vacuum Vent Valve Switch -F36-.
- Check signals from Brake Light Switch -F- and Brake Vacuum Vent Valve Switch -F47-. Refer to "Computers and Control Systems/Brake Signal" Testing and Inspection
9 - Camshaft Position (CMP) Sensor -G40-
- For inlet camshaft, item 16
- Mark connector and component before pulling connector off
10 - Valve -1- for camshaft adjustment -N205-
- For inlet camshaft
- Mark connector and component before pulling connector off.
- Checking activation, Output Diagnosis Test Mode (DTM)
- Check camshaft timing adjustment:
11 - Camshaft Adjustment Valve 1 (exhaust) -N318-
- For exhaust camshaft
- Mark connector and component before pulling connector off.
- Checking activation, Output Diagnosis Test Mode (DTM).
- Check camshaft timing adjustment:
12 - Camshaft Position (CMP) Sensor 2 -G163-
- For exhaust camshaft
- item 13
- Mark connector and component before pulling connector off.
13 - Protective housing
- Relay assignment in protective housing. Refer to Fig. 1.
14 - Mass Air Flow (MAF) sensor -G70- with Intake Air Temperature (IAT) sensor -G42-
15 - Air cleaner
16 - Fuel pressure regulator
17 - Vacuum actuator
- For Intake Manifold Change-Over Valve -N156-
18 - Engine Coolant Temperature (ECT) sensor -G62-
- For Motronic Engine Control Module (ECM) -J220-
- With Engine Coolant Temperature Gauge sensor -G2-
- Release pressure in cooling system if necessary before removing components
19 - Engine Speed (RPM) Sensor -G28-
20 - Knock Sensor (KS) 2 -G66-
- Component location: Between cyl. 4 and cyl. 6, item 17
21 - Secondary Air Injection (AIR) Pump Motor -V101-
- Checking activation, Output Diagnosis Test Mode (DTM)
- Secondary air system:
22 - Intake Manifold Change-Over Valve -N156-
23 - Secondary Air Injection (AIR) Solenoid Valve -N112-
- Checking activation, Output Diagnosis Test Mode (DTM)
- Secondary air system:
24 - Fuel Fuel injector (-N30-...N33-, -N83-, -N84-)
25 - Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-
- Checking activation, Output Diagnosis Test Mode (DTM)
- Evaporative Emission (EVAP) Canister system
26 - Throttle Valve Control Module -J338-
- Heated by coolant
27 - Combi-valve
- Secondary air system:
28 - Ignition coils with power output stage (N70-, -N127-, -N291-, -N292-, -N323- and -N324-)
Relay assignment in protective housing (on left in engine compartment)
1 - Secondary Air Injection (AIR) Pump Relay -J299-
2 - Motronic Engine Control Module (ECM) Power Supply Relay -J271-
NOTE:
- If tools are necessary to pull relays or control modules out of the relay plate, first disconnect battery Ground (GND) strap.
- Before disconnecting battery Ground (GND) strap obtain code for radios with anti-theft coding.