ENGINE PERFORMANCE – Mercedes-Benz ML320 1998 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.2L

3.2L, Engine Performance Wiring Diagrams, Early Production (1 of 3) for Mercedes-Benz ML320 1998

List of elements for 3.2L, Engine Performance Wiring Diagrams, Early Production (1 of 3) for Mercedes-Benz ML320 1998:

• C/c
• C/f
• Can(h)+
• Can(l)-
• Computer data lines system
• Cruise control system
• Diagnostic module (obd ii) generic scan tool connector
• Engine control module (me-sfi) (left side of engine compt, in e box)
• Fuse and relay box
• G104 (left rear corner of engine compt)
• Left oxygen sensor 1 (before twc) (in exhaust pipe)
• Left oxygen sensor 2 (after twc) (in exhaust pipe)
• Mr/e
• Nca
• P/c
• Pedal value sensor (left rear corner of eng compt)
• Pnk
• Pnk/red
• Purge control valve (left rear corner of engine compt)
• Red
• Right oxygen sensor 1 (before twc) (in exhaust pipe)
• Right oxygen sensor 2 (after twc) (in exhaust pipe)
• Starting system
• Tan
• Transmission control module (behind center of dash)

3.2L, Engine Performance Wiring Diagrams, Early Production (2 of 3) for Mercedes-Benz ML320 1998

List of elements for 3.2L, Engine Performance Wiring Diagrams, Early Production (2 of 3) for Mercedes-Benz ML320 1998:

• (right front of engine) air pump switchover valve
• (top center front of engine) resonance intake manifold switchover valve
• (top rear of engine) egr switchover valve
• Activated charcoal canister shut-off valve (under rear of vehicle, above spare wheel)
• Air pump (center front of engine)
• Battery
• Camshaft hall-effect sensor (right front of engine)
• Ckp sensor (left rear of engine)
• Fuel pump
• Fuel pump relay
• Fuel pump with fuel level sensor (top of fuel tank)
• Fuel tank pressure emissions monitoring sensor (behind trim on fuel filler pipe)
• Fuse 15a
• Fuse 40a
• Fuse and relay box
• G125 (front of engine)
• G404 (left rear cargo area)
• Hot film maf sensor (right side of engine compartment)
• Hot in run or start
• M/a
• M/b
• M/c
• Mr/a
• Mr/c
• Mr/d
• Mr/e
• P/a
• P/d
• Pnk
• Red
• Secondary air injection pump relay
• Throttle valve actuator (center rear of engine)

3.2L, Engine Performance Wiring Diagrams, Early Production (3 of 3) for Mercedes-Benz ML320 1998

List of elements for 3.2L, Engine Performance Wiring Diagrams, Early Production (3 of 3) for Mercedes-Benz ML320 1998:

• Ect sensor (center front of engine)
• Engine control module (me-sfi) (left side of engine compt, in e box)
• Fuel injectors
• Fuse 10a
• Fuse 15a
• Fuse and relay box
• G104 (left rear corner of engine compt)
• Hot in run or start
• Ign coil
• Ign coil coil
• Knock sensor 1 (right side of engine)
• Knock sensor 2 (left side of engine)
• M/a
• M/c
• Nca
• Oil sensor (lower right front of engine)
• Pnk
• Pressure sensor (right front of engine)
• Red
• To spark plugs

3.2L, Engine Performance Wiring Diagrams, Late Production (1 of 3) for Mercedes-Benz ML320 1998

List of elements for 3.2L, Engine Performance Wiring Diagrams, Late Production (1 of 3) for Mercedes-Benz ML320 1998:

• C/f
• Can(h)+
• Can(l)-
• Computer data lines system
• Cruise control system
• Diagnostic module (obd ii) generic scan tool connector
• Engine control module (me-sfi) (left side of engine compt, in e box)
• Fuse and relay box
• G104 (left rear corner of engine compt)
• Left oxygen sensor 1 (before twc) (in exhaust pipe)
• Left oxygen sensor 2 (after twc) (in exhaust pipe)
• Mr/e
• Nca
• Pedal value sensor (left rear corner of eng compt)
• Pnk
• Pnk/red
• Purge control valve (left rear corner of engine compt)
• Red
• Right oxygen sensor 1 (before twc) (in exhaust pipe)
• Right oxygen sensor 2 (after twc) (in exhaust pipe)
• Starting system
• Tan
• Transmission control module (behind center of dash)

3.2L, Engine Performance Wiring Diagrams, Late Production (2 of 3) for Mercedes-Benz ML320 1998

List of elements for 3.2L, Engine Performance Wiring Diagrams, Late Production (2 of 3) for Mercedes-Benz ML320 1998:

• (right front of engine) air pump switchover valve
• (top center front of engine) resonance intake manifold switchover valve
• (top rear of engine) egr switchover valve
• Activated charcoal canister shut-off valve (under rear of vehicle, above spare wheel)
• Air pump (center front of engine)
• Battery
• Camshaft hall-effect sensor (right front of engine)
• Ckp sensor (left rear of engine)
• Fuel pump
• Fuel pump relay
• Fuel pump with fuel level sensor (top of fuel tank)
• Fuel tank pressure emissions monitoring sensor (behind trim on fuel filler pipe)
• Fuse 15a
• Fuse 40a
• Fuse and relay box
• G125 (front of engine)
• G404 (left rear cargo area)
• Hot film maf sensor (right side of engine compartment)
• Hot in run or start
• M/a
• M/c
• Mr/a
• Mr/c
• Mr/d
• Mr/e
• P/a
• P/d
• Pnk
• Red
• Secondary air injection pump relay
• Throttle valve actuator (center rear of engine)

3.2L, Engine Performance Wiring Diagrams, Late Production (3 of 3) for Mercedes-Benz ML320 1998

List of elements for 3.2L, Engine Performance Wiring Diagrams, Late Production (3 of 3) for Mercedes-Benz ML320 1998:

• Ect sensor (center front of engine)
• Engine control module (me-sfi) (left side of engine compt, in e box)
• Fuel injectors
• Fuse 10a
• Fuse 15a
• Fuse and relay box
• G104 (left rear corner of engine compt)
• Hot in run or start
• Ign coil
• Ign coil coil
• Knock sensor 1 (right side of engine)
• Knock sensor 2 (left side of engine)
• M/a
• M/c
• Nca
• Oil sensor (lower right front of engine)
• Pnk
• Pressure sensor (right front of engine)
• Red
• To spark plugs