ENGINE PERFORMANCE – Mercedes-Benz C300 Sport 4Matic 2012 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (+)
• (+) sh
• (+) sv
• (-)
• 30g
• A s dk
• Air conditioning system
• C12s
• C16s
• C2i
• C3m
• C4i
• C6i
• C7i
• C9g
• Can b h
• Can b l
• Can c h
• Can c l
• Chassis circuit 87 relay
• Computer data lines system
• Coolant temperature warning lamp
• E rds
• Engine diagnosis ind lamp
• Ev1
• Ev2
• Ev3
• Ev4
• Ev5
• Ev6
• Front electrical prefuse box (at right rear engine compt)
• Front sam control unit w/ fuse & relay module (left rear engine compt)
• Fuel pressure sensor (in fuel tank)
• Fuel pump (fp) (top fuel tank)
• Fuel pump control module (under right rear seat)
• Fuse 10a
• Fuse 150a
• Fuse 40a
• Fuse 7.5a
• Hot w/ quiescent current cutout relay energized
• Ig1
• Instrument cluster
• Ipm
• Lin c1
• Ls2hk
• Lsh1hk
• Lsh2hk
• Lshk
• Lshvk1
• Lsik
• Lsu1un
• Lsu1vm
• Lsu2ia
• Lsu2ip
• Lsu2un
• Lsu2vm
• Me-sfi (me) control module (top center of engine)
• Mr hfm1
• Nca
• Nwae2
• Nwg m
• Nwg m2
• Nwga1
• Nwsa 1
• Nwse 1
• Nwse 2
• Pnk/red
• Red
• Secondary air injection relay
• Slv
• Starting/charging system
• Suv1
• Ths
• W76 (under right rear seat)
• X36/3-c2
• Zue 1
• Zue 2
• Zue 3
• Zue 4
• Zue 5
• Zue 6

3.0L, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (+) sv
• (fuel tank) left fuel level indicator sensor
• (fuel tank) right fuel level indicator sensor
• (top front of engine) air pump
• C30g
• C3i
• C9i
• Can c h
• Can e h
• Cmr2
• Cmr4
• Computer data lines system
• Dst
• Ekp
• Front electrical prefuse box (right rear engine compt)
• Fuel tank pressure sensor (fuel tank)
• Fuse 150a
• Fuse 20a (or 25a)
• Fuse 60a
• Hot at all times
• Lin
• Me-sfi (me) control module (top center of engine)
• Nca
• Pnk/red
• Rear sam control unit w/ fuse & relay module (left side trunk/cargo area)
• Red
• Senm1
• Slp
• Sp1m
• Sp1s
• Sp2s
• Starting/ charging system
• Str
• U pwg1
• W11w2 (left rear engine)
• W16/5 (left rear of engine compt)
• X25/4
• X26/2
• X35/6
• X36/3-c1
• X36/3-c2

3.0L, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (left front engine compt) purge control valve
• (left front of engine) refrigerant compressor
• (left rear of engine compt) front sam control unit w/ fuse & relay module
• (right rear wheelhouse) activated charcoal filter shutoff valve
• (w/ sulev) radiator sensor for engine diagnosis
• Aav
• Accelerator pedal sensor (top of accelerator pedal assembly)
• Air conditioning system
• C18m
• C20m
• C21m
• C3m
• Can c l
• Can e l
• Computer data lines system
• Crash
• Left o2 sensor (upstream of catalytic converter) (under left front of vehicle, in exhaust)
• Lues
• Me-sfi (me) control module (top center of engine)
• Nca
• Pnk
• Red
• Reg
• Sp2m
• W16/4 (right side engine compt)
• X26-c1
• X35/6

3.0L, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (under right front of vehicle, in exhaust) right o2 sensor (upstream of catalytic converter)
• Air conditioning system
• Air pump switchover valve
• C3m
• C41
• C6i
• Engine circuit 87 relay
• Front sam control unit w/ fuse & relay module (left rear of engine compt)
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Heating system shutoff valve (glk-class: engine, rear)
• Hot at all times
• Intake manifold switchover valve
• Intake manifold tumble flap switchover valve (intake manifold)
• Left o2 sensor (downstream of catalytic converter) (front vehicle, in exhaust)
• Nca
• Pnk
• Red
• Right o2 sensor (downstream of catalytic converter) (under right front of vehicle, in exhaust)
• X205
• X26-c1

3.0L, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (c-class: in air intake manifold) (glk-class: throttle body) throttle valve actuator
• (left rear of engine) crankshaft hall sensor
• (top rear of engine) hot film maf sensor
• Cylinder 4 injection valve
• Cylinder 5 injection valve
• Cylinder 6 injection valve
• Ignition coils cylinder (glk-class: top right side engine) (c-class: top of left cylinder bank
• Intake air temperature sensor
• Left exhaust camshaft solenoid (left front of engine)
• Left intake camshaft solenoid (left front of engine)
• Pnk
• Radio interference suppression capacitor 2 (top left side of engine)
• To spark plugs
• W11w1 (right rear engine)
• W16/5 (left side engine compt)
• X26-c1

3.0L, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (-)
• (between cylinder banks)
• (front left cylinder bank) left exhaust camshaft hall sensor
• (front left cylinder bank) left intake camshaft hall sensor
• (front right cylinder bank) right exhaust camshaft hall sensor
• (front right cylinder bank) right intake camshaft hall sensor
• (left front engine) pressure sensor
• (left rear engine) left intake manifold tumble flap position sensor
• (right rear engine) right intake manifold tumble flap position sensor
• Air conditioning system
• Cylinder 1 injection valve
• Cylinder 2 injection valve
• Cylinder 3 injection valve
• Dcm
• Dcp
• Dk1
• Dk2
• E a ks1a
• E a ks1b
• E a ks2a
• E a ks2b
• Ea tans
• Ef hfm1
• Ef ref1
• Hav
• Ignition coils cylinder (glk-class: top right side engine) (c-class: (top of right cylinder bank)
• Ip1s
• Ip2s
• Kwdga
• Left knock sensor
• Lshvk2
• Lsu1a
• Lsu1p
• Me-sfi (me) control module (top center of engine)
• Nwge1
• Nwge2
• Nwsa 2
• Oil level check switch (left side of oil pan)
• Oss
• Pnk
• Radio interference suppression capacitor 1 (top right side of engine)
• Right exhaust camshaft solenoid (right front of engine)
• Right intake camshaft solenoid (right front of engine)
• Right knock sensor
• Tmot
• To spark plugs
• W11w2 (left rear engine)

3.0L FLEX FUEL

3.0L Flex Fuel, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L Flex Fuel, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (+)
• (+) sh
• (+) sv
• (-)
• 30g
• A s dk
• Air conditioning system
• C12s
• C16s
• C2i
• C3m
• C4i
• C6i
• C7i
• C9g
• Can b h
• Can b l
• Can c h
• Can c l
• Chassis circuit 87 relay
• Computer data lines system
• Coolant temperature warning lamp
• E rds
• Engine diagnosis ind lamp
• Ev1
• Ev2
• Ev3
• Ev4
• Ev5
• Ev6
• Front electrical prefuse box (at right rear engine compt)
• Front sam control unit w/ fuse & relay module (left rear engine compt)
• Fuel pressure sensor (in fuel tank)
• Fuel pump (fp) (top fuel tank)
• Fuel pump control module (under right rear seat)
• Fuse 10a
• Fuse 150a
• Fuse 40a
• Fuse 7.5a
• Hot w/ quiescent current cutout relay energized
• Ig1
• Instrument cluster
• Ipm
• Lin c1
• Ls2hk
• Lsh1hk
• Lsh2hk
• Lshk
• Lshvk1
• Lsik
• Lsu1un
• Lsu1vm
• Lsu2ia
• Lsu2ip
• Lsu2un
• Lsu2vm
• Me-sfi (me) control module (top center of engine)
• Mr hfm1
• Nca
• Nwae2
• Nwg m
• Nwg m2
• Nwga1
• Nwsa 1
• Nwse 1
• Nwse 2
• Pnk/red
• Red
• Secondary air injection relay
• Slv
• Starting/charging system
• Suv1
• Ths
• W76 (under right rear seat)
• X36/3-c2
• Zue 1
• Zue 2
• Zue 3
• Zue 4
• Zue 5
• Zue 6

3.0L Flex Fuel, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L Flex Fuel, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (+) sv
• (fuel tank) left fuel level indicator sensor
• (fuel tank) right fuel level indicator sensor
• (top front of engine) air pump
• C30g
• C3i
• C9i
• Can c h
• Can e h
• Cmr2
• Cmr4
• Computer data lines system
• Dst
• Ekp
• Front electrical prefuse box (right rear engine compt)
• Fuel tank pressure sensor (fuel tank)
• Fuse 150a
• Fuse 20a (or 25a)
• Fuse 60a
• Hot at all times
• Lin
• Me-sfi (me) control module (top center of engine)
• Nca
• Pnk/red
• Rear sam control unit w/ fuse & relay module (left side trunk/cargo area)
• Red
• Senm1
• Slp
• Sp1m
• Sp1s
• Sp2s
• Starting/ charging system
• Str
• U pwg1
• W11w2 (left rear engine)
• W16/5 (left rear of engine compt)
• X25/4
• X26/2
• X35/6
• X36/3-c1
• X36/3-c2

3.0L Flex Fuel, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L Flex Fuel, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (left front engine compt) purge control valve
• (left front of engine) refrigerant compressor
• (left rear of engine compt) front sam control unit w/ fuse & relay module
• (right rear wheelhouse) activated charcoal filter shutoff valve
• (w/ sulev) radiator sensor for engine diagnosis
• Aav
• Accelerator pedal sensor (top of accelerator pedal assembly)
• Air conditioning system
• C18m
• C20m
• C21m
• C3m
• Can c l
• Can e l
• Computer data lines system
• Crash
• Left o2 sensor (upstream of catalytic converter) (under left front of vehicle, in exhaust)
• Lues
• Me-sfi (me) control module (top center of engine)
• Nca
• Pnk
• Red
• Reg
• Sp2m
• W16/4 (right side engine compt)
• X26-c1
• X35/6

3.0L Flex Fuel, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L Flex Fuel, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (under right front of vehicle, in exhaust) right o2 sensor (upstream of catalytic converter)
• Air conditioning system
• Air pump switchover valve
• C3m
• C41
• C6i
• Engine circuit 87 relay
• Front sam control unit w/ fuse & relay module (left rear of engine compt)
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Heating system shutoff valve (glk-class: engine, rear)
• Hot at all times
• Intake manifold switchover valve
• Intake manifold tumble flap switchover valve (intake manifold)
• Left o2 sensor (downstream of catalytic converter) (front vehicle, in exhaust)
• Nca
• Pnk
• Red
• Right o2 sensor (downstream of catalytic converter) (under right front of vehicle, in exhaust)
• X205
• X26-c1

3.0L Flex Fuel, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L Flex Fuel, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (c-class: in air intake manifold) (glk-class: throttle body) throttle valve actuator
• (left rear of engine) crankshaft hall sensor
• (top rear of engine) hot film maf sensor
• Cylinder 4 injection valve
• Cylinder 5 injection valve
• Cylinder 6 injection valve
• Ignition coils cylinder (glk-class: top right side engine) (c-class: top of left cylinder bank
• Intake air temperature sensor
• Left exhaust camshaft solenoid (left front of engine)
• Left intake camshaft solenoid (left front of engine)
• Pnk
• Radio interference suppression capacitor 2 (top left side of engine)
• To spark plugs
• W11w1 (right rear engine)
• W16/5 (left side engine compt)
• X26-c1

3.0L Flex Fuel, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz C300 Sport 4Matic 2012

List of elements for 3.0L Flex Fuel, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz C300 Sport 4Matic 2012:

• (-)
• (between cylinder banks)
• (front left cylinder bank) left exhaust camshaft hall sensor
• (front left cylinder bank) left intake camshaft hall sensor
• (front right cylinder bank) right exhaust camshaft hall sensor
• (front right cylinder bank) right intake camshaft hall sensor
• (left front engine) pressure sensor
• (left rear engine) left intake manifold tumble flap position sensor
• (right rear engine) right intake manifold tumble flap position sensor
• Air conditioning system
• Cylinder 1 injection valve
• Cylinder 2 injection valve
• Cylinder 3 injection valve
• Dcm
• Dcp
• Dk1
• Dk2
• E a ks1a
• E a ks1b
• E a ks2a
• E a ks2b
• Ea tans
• Ef hfm1
• Ef ref1
• Hav
• Ignition coils cylinder (glk-class: top right side engine) (c-class: (top of right cylinder bank)
• Ip1s
• Ip2s
• Kwdga
• Left knock sensor
• Lshvk2
• Lsu1a
• Lsu1p
• Me-sfi (me) control module (top center of engine)
• Nwge1
• Nwge2
• Nwsa 2
• Oil level check switch (left side of oil pan)
• Oss
• Pnk
• Radio interference suppression capacitor 1 (top right side of engine)
• Right exhaust camshaft solenoid (right front of engine)
• Right intake camshaft solenoid (right front of engine)
• Right knock sensor
• Tmot
• To spark plugs
• W11w2 (left rear engine)