ENGINE PERFORMANCE – Mercedes-Benz E350 2012 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L TURBO DIESEL

3.0L Turbo Diesel, Engine Performance Wiring Diagram (1 of 8) for Mercedes-Benz E350 2012

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (1 of 8) for Mercedes-Benz E350 2012:

• (+)
• (-)
• 30g
• 87m
• Accelerator pedal sensor (on accelerator pedal assembly)
• Air conditioning system
• C16s
• C1v
• C3i
• C3m
• C4i
• C6i
• C9i
• Can-c h
• Can-c l
• Can-e h
• Can-e l
• Can-i h
• Can-i l
• Cdi control module (right rear of engine compt)
• Computer data lines system
• Control unit
• Crash
• Differential pressure sensor/diesel particulate filter for onboard diagnostics (obd)
• Ekp
• Engine circuit relay
• Front electrical prefuse box (right rear of engine compt)
• Front sam sam control module w/ fuse/relay module (left rear of engine compt)
• Fuel pump relay
• Fuse 150a mr7
• Fuse 15a
• Fuse 20a
• Fuse 25a
• Fuse 7.5a
• Hot at all times
• Hot w/ chassis circuit 87 relay energized
• Left fuel level indicator sensor (in fuel tank, under left rear seat)
• Lscp1
• Lsh1
• Lsvg1
• Lsvn1
• Lues
• Nca
• Pnk
• Pnk/red
• Rear sam control unit w/ fuse & relay module (in spare wheelwell)
• Red
• Right fuel level indicator sensor (in fuel tank, under right rear seat)
• Shut
• Sig
• Sp1m
• Sp1s
• Sp2m
• Sp2s
• Starting/charging system
• Str
• Temperature sensor upstream of diesel particulate filter
• Temperature sensor upstream of scr catalytic converter
• Tg l
• Tg r
• U pwg
• W/ fuel system
• W/o fuel system control unit
• W16/6 (right rear of engine compt)
• X26
• X26-c1
• X36/2-c1
• X36/3-c1
• X86/1-c1b

3.0L Turbo Diesel, Engine Performance Wiring Diagram (2 of 8) for Mercedes-Benz E350 2012

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (2 of 8) for Mercedes-Benz E350 2012:

• (-)
• 15 r
• C19a
• C20a
• C21a
• C22a
• C6i
• Can i h
• Can i l
• E19
• E20
• E21
• E22
• Front electrical prefuse box (right rear of engine compt)
• Front sam sam control unit w/ fuse & relay module (left rear of engine compt)
• Fuse 10a
• Fuse 150a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse 7.5a
• Hot w/ circuit 15 relay energized
• Hot w/ quiescent current cutout relay energized
• Ig1
• Lines system computer data
• Nca
• Pnk
• Pnk/red
• Radiator shutters actuator (top right rear of radiator)
• Rear sam control module w/ fuse/relay module (in spare wheelwell)
• Red
• Scr
• Sig

3.0L Turbo Diesel, Engine Performance Wiring Diagram (3 of 8) for Mercedes-Benz E350 2012

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (3 of 8) for Mercedes-Benz E350 2012:

• (not used)
• +5v
• 15 r
• Delivery pump
• Empty
• Fill level sensor
• Full
• Heating element
• Pressure line heating element
• Pressure sensor
• Red
• Reserve
• Sig
• Sp2m
• Switchover valve
• Tank heating element & temperature sensor
• W8/8 (right rear of trunk)

3.0L Turbo Diesel, Engine Performance Wiring Diagram (4 of 8) for Mercedes-Benz E350 2012

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (4 of 8) for Mercedes-Benz E350 2012:

• (+)
• (-)
• (center rear of engine) charge air temperature sensor
• (oil pan assembly) oil temperature sensor
• (rear of left cylinder bank) coolant temperature sensor
• A-ldr
• A-zme
• Br-ds1
• Br-ds2
• Br-ds3
• Br-ds4
• Br-ds5
• Br-ds6
• Cdi control module (right rear of engine compt)
• Downstream of air filter pressure sensor
• E-p3
• Ea lds
• Erg sig
• Exhaust back pressure sensor
• Exhaust gas recirculation temperature sensor
• Exts2
• Fuel temperature sensor
• Gnd
• Ia tegr
• Inj h
• Kts sig
• Lin c1
• Ll tf sig
• Lsca1
• Lscp1
• Lsh1
• Lsvg1
• Lsvn1
• Oeltemp
• Rail pressure sensor
• Rds
• Red
• Sig
• Sig-kas
• T-sig
• Temp agr
• Temperature sensor upstream of catalytic converter
• Temperature sensor upstream of turbocharger (in turbocharger charge pipe)
• Tmot

3.0L Turbo Diesel, Engine Performance Wiring Diagram (5 of 8) for Mercedes-Benz E350 2012

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (5 of 8) for Mercedes-Benz E350 2012:

• (right rear of engine) differential pressure sensor (dpf)
• Condensation sensor for fuel filter w/ heating element
• Nca
• Pressure regulator valve
• Quantity control valve
• Red
• Sig
• W11

3.0L Turbo Diesel, Engine Performance Wiring Diagram (6 of 8) for Mercedes-Benz E350 2012

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (6 of 8) for Mercedes-Benz E350 2012:

• (+)
• (-)
• 1 zyl
• 2 zyl
• 3 zyl
• 4 zyl
• 5 zyl
• 6 zyl
• Can-c h
• Can-c l
• Computer data lines system
• Cylinder glow plug 1
• Cylinder glow plug 2
• Cylinder glow plug 3
• Cylinder glow plug 4
• Cylinder glow plug 5
• Cylinder glow plug 6
• Ekp
• Fuel pressure sensor (on left fuel rail)
• Fuel pump (fp) (under right rear seat, in fuel tank)
• Fuel pump control unit (behind right quarterpanel)
• Glow output stage
• Htr 1
• Htr 2
• Kds_sig
• Lin c1
• Nca
• Red
• Sig
• Starting/ charging system
• W/ fuel pump control unit
• W/ increased engine power
• W/o fuel pump control unit
• W/o increased engine power
• W11
• W15/1
• X26-c3
• X36/2-c1

3.0L Turbo Diesel, Engine Performance Wiring Diagram (7 of 8) for Mercedes-Benz E350 2012

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (7 of 8) for Mercedes-Benz E350 2012:

• Boost pressur sensor
• Can- b h
• Can- b l
• Computer data lines system
• Cylinder glow plug 1 w/ combustion chamber pressure sensor
• Cylinder glow plug 2 w/ combustion chamber pressure sensor
• Cylinder glow plug 3 w/ combustion chamber pressure sensor
• Cylinder glow plug 4 w/ combustion chamber pressure sensor
• Cylinder glow plug 5 w/ combustion chamber pressure sensor
• Cylinder glow plug 6 w/ combustion chamber pressure sensor
• Fuel level indicator
• Fuel reserve indicator lamp
• Instrument cluster
• Left hot film maf sensor (in left air intake tube)
• Red
• Throttle valve actuator (on throttle body)
• W/ increased engine power

3.0L Turbo Diesel, Engine Performance Wiring Diagram (8 of 8) for Mercedes-Benz E350 2012

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (8 of 8) for Mercedes-Benz E350 2012:

• (+)
• (-)
• (left rear of engine) crankshaft hall sensor
• A-eka
• Boost pressure positioner
• Camshaft hall sensor
• Cdi control module (right rear of engine compt)
• Crankcase ventilation system differential pressure sensor
• Drv
• E-hfm1
• E-hfm2
• Exhaust gas recirculation actuator
• Fuel injectors
• Gnd
• Ia pfdpt
• Inj h
• Inj l
• Intake port shutoff actuator motor
• Kg-sig
• Kwga
• Left intake port shutoff hall sensor
• M (+)
• M (-)
• Nca
• Nwg-sig
• Oil level check switch (bottom of engine)
• Oss
• Red
• Right hot film maf sensor (in right air intake tube)
• Right intake port shutoff hall sensor
• Sig
• Sig-kas-l
• T1-1
• T1-2
• W3/1 (behind right front fender)
• X26-c1

3.5L

3.5L, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz E350 2012:

• (+)
• (-)
• (left side of engine) cylinder 5 fuel injector
• +5v
• Agap1
• Agr2p
• Agrp2
• C4i
• C6i
• C9g
• Catalytic converter)
• Coolant thermostat heating element
• Dcm
• Dcp
• Engine oil pump valve
• Ev1
• Ev2
• Ev3
• Ev4
• Ev5
• Front sam control module w/ fuse/ relay module (left rear of engine compt)
• Fuel quality sensor (sedan)
• Fuse 10a
• Fuse 7.5a
• Hot at all times
• Hot w/ chassis circuit 15 relay energized
• Hot w/ circuit 15 relay energized
• Intake manifold resonance flap switch over valve
• Intake manifold selector drum switch over valve
• Ip1s
• Ip2s
• Ipm
• Kwths
• Left oxygen sensor downstream of catalytic converter (in left exhaust, downstream of
• Lhs1hk
• Lhsvk1
• Ls2hk
• Lshk
• Me-sfi (me) control module (center rear of engine)
• Nca
• Nwas2
• Nwsa1
• Nwse 1
• Pnk/red
• Quantity control valve
• Radiator shutters actuator (sedan)
• Red
• Right oxygen sensor downstream of catalytic converter (in right exhaust, downstream of
• Su2
• Tanss
• W18 (under driver's seat)
• X75
• Zue 1
• Zue 4
• Zue 5
• Zue 6
• Zue2

3.5L, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz E350 2012:

• (right side of engine)
• +5v
• A-a-sam
• Air
• Air cond- itioning system
• Askj
• C18m
• C3m
• C4i
• C4m
• C6i
• C8s
• Can c h
• Can e h
• Can i h
• Can l h
• Can l l
• Computer data lines system
• Conditioning system
• Crash
• Cylinder 1 fuel injection
• Cylinder 2 fuel injection
• Cylinder 3 fuel injection
• Eco start/ stop function
• Ekpr
• Engine circuit 87 relay
• Front sam control module w/ fuse/ relay module (left rear of engine compt)
• Fuel tank pressure sensor (in fuel tank, under left rear seat)
• Fuse 15a
• Fuse 20a
• Kup1
• Left temperature sensor upstream of nox storage catalytic converter (coupe)
• Lin c1
• Me-sfi (me) control module (center rear of engine)
• Pnk/red
• Red
• S-sam
• Sp1s
• U pwg1
• W16/5 (left rear of engine compt)
• X25/4-c1
• X26-c1

3.5L, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz E350 2012:

• (left front of engine compt) purge control valve
• (left side of engine) cylinder 4 fuel injector
• (right rear wheelwell) activated charcoal filter shutoff valve
• 100a
• 150a mr7
• Aav
• Accelerator pedal sensor (on accelerator pedal assembly)
• C3i
• C9i
• Can c l
• Can e l
• Can i l
• Computer data lines system
• Coupe
• Front electrical prefuse box (right rear of engine compt)
• Fuse
• Fuse 20a
• Hot at all times
• Left fuel level indicator sensor
• Left nox sensor control unit (coupe)
• Lpv
• Me-sfi (me) control module (center rear of engine compt)
• Mr2
• Nca
• Pnk
• Radiator sensor for engine diagnosis
• Rear sam control module w/ fuse/ relay module (in spare wheelwell)
• Red
• Right fuel level indicator sensor
• Right temperature sensor upstream of nox storage catalytic converter (coupe)
• Sedan
• Sp2s
• Starting/ charging system
• Str
• Str+
• W2 (right side of engine compt)
• X26-c1
• X3516
• X86/3-c1

3.5L, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz E350 2012:

• (+)
• (-)
• (behind right quarterpanel) fuel pump control unit
• (in left exhaust, upstream of catalytic converter) right oxygen sensor upstream of catalytic converter
• (on left fuel rail) fuel pressure sensor
• (under right rear seat, in fuel tank) fuel pump (fp)
• Can c h
• Can c l
• Computer data lines system
• Ekp
• Gnd
• Hot film mass air flow sensor
• Ignition coils cylinders (cylinder 4, 5, 6: on engine left cylinder bank)
• Kds sig
• Kos
• Left exhaust camshaft solenoid (left front
• Left intake camshaft solenoid (left front of engine)
• Left nox sensor (coupe) (in exhaust, downstream of left nox storage catalytic converter)
• Nca
• Phase u
• Phase v
• Phase w
• To spark plugs
• W16/5
• W76 (coupe) w15/1 (sedan)
• X26-c1

3.5L, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz E350 2012:

• (coupe) (in exhaust, downstream of right nox storage catalytic
• (in left exhaust, upstream of catalytic converter) left oxygen sensor upstream of catalytic converter
• (integral to throttle valve actuator) throttle valve actuator
• Computer data lines system
• Ignition coils cylinders (cylinder 1, 2, 3: on engine right cylinder bank)
• Intake manifold & intake air temperature sensor
• Nca
• Pnk
• Right exhaust camshaft solenoid (right front of engine)
• Right intake camshaft solenoid (right front of engine)
• Right nox sensor
• Right nox sensor control unit (coupe)
• To spark
• W11 (right rear of engine compt)
• W19 (under front passenger's seat)
• X26-c1
• X86/4-c2

3.5L, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz E350 2012:

• (-)
• (between cylinder banks)
• (front of left cylinder bank) left exhaust camshaft hall sensor
• (front of left cylinder bank) left intake camshaft hall sensor
• (front of right cylinder bank) right exhaust camshaft hall sensor
• (front of right cylinder bank) right intake camshaft hall sensor
• (left side of engine) cylinder 6 fuel injectior
• (rear of left cylinder bank) coolant temperature sensor
• Agr1p
• Coupe
• Crankshaft hall sensor (left rear of engine)
• Ef hfm1
• Ef ref1
• Ev4
• Ev6
• Fa tans
• Ks1a
• Ks1b
• Ks2a
• Ks2b
• Kwga
• Kwr
• Left exhaust gas recirculation positioner (if equipped)
• Left knock sensor
• Lin c1
• Lsh2hk
• Lshvk2
• Lsu1ia
• Lsu1ip
• Lsu1um
• Lsu2ia
• Lsu2ip
• Lsu2um
• Lsu2vm
• Lsumv1
• Me-sfi (me) control module (center rear of engine compt)
• Mr hfm1
• Nwg-m2
• Nwga1
• Nwga2
• Nwge1
• Nwge2
• Oil level check switch (bottom of engine)
• Oilp
• Oss
• Pnk
• Pressure sensor downstream of throttle valve (downstream of throttle valve actuator)
• Right exhaust gas recirculation positioner (if equipped)
• Right knock sensor
• Sedan
• Starting/ charging system
• Su1
• Tank fuel pressure & temperature sensor
• Tks
• Tmdt
• X26-c4

3.5L FLEX FUEL

3.5L Flex Fuel, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L Flex Fuel, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz E350 2012:

• (+)
• (-)
• (left side of engine) cylinder 5 fuel injector
• +5v
• Agap1
• Agr2p
• Agrp2
• C4i
• C6i
• C9g
• Catalytic converter)
• Coolant thermostat heating element
• Dcm
• Dcp
• Engine oil pump valve
• Ev1
• Ev2
• Ev3
• Ev4
• Ev5
• Front sam control module w/ fuse/ relay module (left rear of engine compt)
• Fuel quality sensor (sedan)
• Fuse 10a
• Fuse 7.5a
• Hot at all times
• Hot w/ chassis circuit 15 relay energized
• Hot w/ circuit 15 relay energized
• Intake manifold resonance flap switch over valve
• Intake manifold selector drum switch over valve
• Ip1s
• Ip2s
• Ipm
• Kwths
• Left oxygen sensor downstream of catalytic converter (in left exhaust, downstream of
• Lhs1hk
• Lhsvk1
• Ls2hk
• Lshk
• Me-sfi (me) control module (center rear of engine)
• Nca
• Nwas2
• Nwsa1
• Nwse 1
• Pnk/red
• Quantity control valve
• Radiator shutters actuator (sedan)
• Red
• Right oxygen sensor downstream of catalytic converter (in right exhaust, downstream of
• Su2
• Tanss
• W18 (under driver's seat)
• X75
• Zue 1
• Zue 4
• Zue 5
• Zue 6
• Zue2

3.5L Flex Fuel, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L Flex Fuel, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz E350 2012:

• (right side of engine)
• +5v
• A-a-sam
• Air
• Air cond- itioning system
• Askj
• C18m
• C3m
• C4i
• C4m
• C6i
• C8s
• Can c h
• Can e h
• Can i h
• Can l h
• Can l l
• Computer data lines system
• Conditioning system
• Crash
• Cylinder 1 fuel injection
• Cylinder 2 fuel injection
• Cylinder 3 fuel injection
• Eco start/ stop function
• Ekpr
• Engine circuit 87 relay
• Front sam control module w/ fuse/ relay module (left rear of engine compt)
• Fuel tank pressure sensor (in fuel tank, under left rear seat)
• Fuse 15a
• Fuse 20a
• Kup1
• Left temperature sensor upstream of nox storage catalytic converter (coupe)
• Lin c1
• Me-sfi (me) control module (center rear of engine)
• Pnk/red
• Red
• S-sam
• Sp1s
• U pwg1
• W16/5 (left rear of engine compt)
• X25/4-c1
• X26-c1

3.5L Flex Fuel, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L Flex Fuel, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz E350 2012:

• (left front of engine compt) purge control valve
• (left side of engine) cylinder 4 fuel injector
• (right rear wheelwell) activated charcoal filter shutoff valve
• 100a
• 150a mr7
• Aav
• Accelerator pedal sensor (on accelerator pedal assembly)
• C3i
• C9i
• Can c l
• Can e l
• Can i l
• Computer data lines system
• Coupe
• Front electrical prefuse box (right rear of engine compt)
• Fuse
• Fuse 20a
• Hot at all times
• Left fuel level indicator sensor
• Left nox sensor control unit (coupe)
• Lpv
• Me-sfi (me) control module (center rear of engine compt)
• Mr2
• Nca
• Pnk
• Radiator sensor for engine diagnosis
• Rear sam control module w/ fuse/ relay module (in spare wheelwell)
• Red
• Right fuel level indicator sensor
• Right temperature sensor upstream of nox storage catalytic converter (coupe)
• Sedan
• Sp2s
• Starting/ charging system
• Str
• Str+
• W2 (right side of engine compt)
• X26-c1
• X3516
• X86/3-c1

3.5L Flex Fuel, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L Flex Fuel, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz E350 2012:

• (+)
• (-)
• (behind right quarterpanel) fuel pump control unit
• (in left exhaust, upstream of catalytic converter) right oxygen sensor upstream of catalytic converter
• (on left fuel rail) fuel pressure sensor
• (under right rear seat, in fuel tank) fuel pump (fp)
• Can c h
• Can c l
• Computer data lines system
• Ekp
• Gnd
• Hot film mass air flow sensor
• Ignition coils cylinders (cylinder 4, 5, 6: on engine left cylinder bank)
• Kds sig
• Kos
• Left exhaust camshaft solenoid (left front
• Left intake camshaft solenoid (left front of engine)
• Left nox sensor (coupe) (in exhaust, downstream of left nox storage catalytic converter)
• Nca
• Phase u
• Phase v
• Phase w
• To spark plugs
• W16/5
• W76 (coupe) w15/1 (sedan)
• X26-c1

3.5L Flex Fuel, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L Flex Fuel, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz E350 2012:

• (coupe) (in exhaust, downstream of right nox storage catalytic
• (in left exhaust, upstream of catalytic converter) left oxygen sensor upstream of catalytic converter
• (integral to throttle valve actuator) throttle valve actuator
• Computer data lines system
• Ignition coils cylinders (cylinder 1, 2, 3: on engine right cylinder bank)
• Intake manifold & intake air temperature sensor
• Nca
• Pnk
• Right exhaust camshaft solenoid (right front of engine)
• Right intake camshaft solenoid (right front of engine)
• Right nox sensor
• Right nox sensor control unit (coupe)
• To spark
• W11 (right rear of engine compt)
• W19 (under front passenger's seat)
• X26-c1
• X86/4-c2

3.5L Flex Fuel, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz E350 2012

List of elements for 3.5L Flex Fuel, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz E350 2012:

• (-)
• (between cylinder banks)
• (front of left cylinder bank) left exhaust camshaft hall sensor
• (front of left cylinder bank) left intake camshaft hall sensor
• (front of right cylinder bank) right exhaust camshaft hall sensor
• (front of right cylinder bank) right intake camshaft hall sensor
• (left side of engine) cylinder 6 fuel injectior
• (rear of left cylinder bank) coolant temperature sensor
• Agr1p
• Coupe
• Crankshaft hall sensor (left rear of engine)
• Ef hfm1
• Ef ref1
• Ev4
• Ev6
• Fa tans
• Ks1a
• Ks1b
• Ks2a
• Ks2b
• Kwga
• Kwr
• Left exhaust gas recirculation positioner (if equipped)
• Left knock sensor
• Lin c1
• Lsh2hk
• Lshvk2
• Lsu1ia
• Lsu1ip
• Lsu1um
• Lsu2ia
• Lsu2ip
• Lsu2um
• Lsu2vm
• Lsumv1
• Me-sfi (me) control module (center rear of engine compt)
• Mr hfm1
• Nwg-m2
• Nwga1
• Nwga2
• Nwge1
• Nwge2
• Oil level check switch (bottom of engine)
• Oilp
• Oss
• Pnk
• Pressure sensor downstream of throttle valve (downstream of throttle valve actuator)
• Right exhaust gas recirculation positioner (if equipped)
• Right knock sensor
• Sedan
• Starting/ charging system
• Su1
• Tank fuel pressure & temperature sensor
• Tks
• Tmdt
• X26-c4