ENGINE PERFORMANCE – Mercedes-Benz ML350 2014 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L TURBO DIESEL

3.0L Turbo Diesel, Engine Performance Wiring Diagram (1 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (1 of 9) for Mercedes-Benz ML350 2014:

• (+)
• (-)
• 87m1
• 87m2
• Accelerator pedal sensor (part of accelerator pedal assembly)
• Battery compartment prefuse box (under front passenger's seat)
• Can 1 l
• Can c h
• Can c l
• Can e h
• Can e l
• Can i h
• Cdi control unit (rear of right front fender)
• Circuit 87m relay
• Computer data lines system
• Cooling fans system
• Crash
• Differential pressure sensor/ diesel particulate filter for onboard diagnostics (obd) sensor
• Efp
• Engine compartment fuse & relay module (right side of engine compt)
• Exts3
• Exts4
• Fuse 15a
• Fuse 20a
• Fuse 40a
• Fuse 7.5a
• Hot at all times
• Kja
• Lues
• Mr2
• Mrly
• Pnk
• Radiator shutters actuator (if equipped) (upper right rear of radiator)
• S13
• Sam control unit (right kick panel)
• Sig
• Sp1m
• Sp1s
• Sp2s
• Starting/charging system
• Uh2
• Upstream temperature scr catalytic converter (w/ exhaust treatment)
• Upwg
• Vssam
• W/ eco start/stop function
• W2 (right side of engine compt)
• X25/2-c1
• X25/2-c2
• X26/31-c1

3.0L Turbo Diesel, Engine Performance Wiring Diagram (2 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (2 of 9) for Mercedes-Benz ML350 2014:

• (+)
• Can i h
• Can i l
• Computer data lines system
• Dvhs (+)
• Dvhs (-)
• Gnd
• Hemt dl
• O s mrly
• O t raht1
• O t ramcp
• O t rapp
• O v ramcp
• O v rapp
• Pnk
• Sig
• W7 (base of right "d" pillar)

3.0L Turbo Diesel, Engine Performance Wiring Diagram (3 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (3 of 9) for Mercedes-Benz ML350 2014:

• (-)
• (left bottom rear side of engine compt) left switchable engine mount
• (right bottom rear side of engine compt) right switchable engine mount
• Can i h
• Can i l
• E1a
• Early production
• Fuse 150a
• Fuse 15a 20a
• Fuse 20a 25a
• Fuse 5a
• Fuse 7.5a 15a
• Gr pras
• Hot at all times
• Hot w/ circuit 15 relay energized
• Ia pras
• Ia trats
• Interior prefuse box (right front upper footwell)
• Late production
• Lines system computer data
• Os rarv
• Ot rapmp
• Ov rh1
• Pnk
• Ramvh1
• Ramvl1
• Rear fuse box (in right rear footwell)
• Red
• Scrm1
• W7 (base of right "d" pillar)

3.0L Turbo Diesel, Engine Performance Wiring Diagram (4 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (4 of 9) for Mercedes-Benz ML350 2014:

• (-)
• 15a
• Bf rals1
• Bf rals2
• Bf rals3
• Empty
• Fill level sensor
• Full
• Os raht1
• Os raht2
• Os raht3
• Pressure line heating element
• Red
• Reserve
• Scrm3
• Sp2m
• Tank heating element & temperature sensor
• Vv 5vpras
• W7 (base of right "d" pillar)

3.0L Turbo Diesel, Engine Performance Wiring Diagram (5 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (5 of 9) for Mercedes-Benz ML350 2014:

• Can b h
• Can b l
• Computer data lines system
• Coolant temperature warning lamp indicator
• Delivery pump
• Engine compartment fuse & relay module (right side of engine compt)
• Engine diagnosis indicator lamp
• Fuel level indicator lamp
• Fuel reserve indicator lamp
• Fuse 15a
• Heating element
• Hot w/ circuit 87m relay energized
• Instrument cluster
• Nox sensor control unit downstream of diesel particulate filter
• Nox sensor control unit downstream of scr catalytic converter
• Nox sensor downstream of diesel particulate filter
• Nox sensor downstream of scr catalytic converter
• Pnk
• Preglow indicator lamp
• Pressure sensor
• Red
• Soot particulate sensor
• Soot particulate sensor control unit
• Switchover valve
• W15/1 (right front footwell)
• W7 (base of right "d" pillar)
• X25/2-c1

3.0L Turbo Diesel, Engine Performance Wiring Diagram (6 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (6 of 9) for Mercedes-Benz ML350 2014:

• (+)
• (-)
• (bottom left side of oil pan) engine oil temperature sensor
• (left rear of engine) exhaust gas recirculation temperature sensor
• (on high pressure fuel pump) fuel temperature sensor
• +5v
• A-eka-r
• Aldr
• Cdi control module (rear of right front fender)
• Charge air temperature sensor
• Differential pressure sensor (dpf)
• Downstream air filter pressure sensor
• Dpf sig
• Ea lds
• Engine coolant temperature sensor
• Ep3
• Exhaust pressure sensor
• Exts1
• Exts2
• Fuel high pressure sensor
• Inj h
• Kts sig
• Lin c1
• Lltf sig
• Lscp1
• Lsh1
• Lsvg1
• Lsvn1
• Oel temp
• Pnk/red
• Rds
• Red
• Sig
• T sig
• Temp agr
• Tmot
• Upstream catalytic converter temperature sensor
• Upstream temperature sensor diesel particulate filter
• Upstream temperature turbocharger sensor (right rear of turbocharger)
• X18/3-c1
• Zme+

3.0L Turbo Diesel, Engine Performance Wiring Diagram (7 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (7 of 9) for Mercedes-Benz ML350 2014:

• (+)
• (-)
• (in top of left side of fuel tank) left fuel tank fuel level indicator fill level sensor
• Can c h
• Can c l
• Computer data lines system
• Coolant pump switchover valve
• Ds sig
• Ds+
• Ds-
• Ekp
• Fuel pressure sensor (rear of right fuel rail)
• Fuel pump control unit (right front of luggage compt floor)
• Fuse 25a
• Fuse 5a
• Hot at all times
• Hot w/ circuit 15 relay energized
• Nca
• Oxygen sensor upstream of catalytic converter
• Pnk/red
• Pressure regulator valve (front of left fuel rail)
• Quantity control valve (rear of right cylinder bank)
• Rear fuse box (in right rear footwell)
• Red
• W17/6 (under right seat of 2nd row)
• X18/3-c1
• X25/2-c1
• X26/31-c1

3.0L Turbo Diesel, Engine Performance Wiring Diagram (8 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (8 of 9) for Mercedes-Benz ML350 2014:

• (top of left cylinder bank)
• (top of right cylinder bank)
• 1 zyl
• 2 zyl
• 3 zyl
• 4 zyl
• 5 zyl
• 6 zyl
• Boost pressure sensor (right front of engine)
• Condensation sensor for fuel filter w/ heating element (top left rear of engine)
• Cylinder glow plug 1
• Cylinder glow plug 2
• Cylinder glow plug 3
• Cylinder glow plug 4
• Cylinder glow plug 5
• Cylinder glow plug 6
• Exhaust gas recirculation cooler bypass flap switchover valve (front of engine)
• Fuel pump (fp) & right fuel tank fuel level indicator fill level sensor (fuel pump (fp): top left side of fuel tank) (right fuel tank fuel level indicator fill level sensor: in top of right side of fuel tank)
• Glow time output stage (front of right cylinder bank)
• Kfhz2
• Kfzh1
• Left hot film maf sensor (in left intake air duct)
• Left intake air temperature sensor
• Lin
• Nca
• Red
• Starting/ charging system
• Throttle valve actuator
• W11
• W12 (under rear of center console)
• Wss
• X18/3-c1
• X26/31-c1

3.0L Turbo Diesel, Engine Performance Wiring Diagram (9 of 9) for Mercedes-Benz ML350 2014

List of elements for 3.0L Turbo Diesel, Engine Performance Wiring Diagram (9 of 9) for Mercedes-Benz ML350 2014:

• (+)
• (-)
• (right side of engine compt)
• (top rear of engine) vent line heater element
• Aeka
• Agr
• Arg bvp
• Boost pressure control pressure transducer (top center of engine)
• Camshaft hall sensor
• Cdi control unit (rear of right front fender)
• Crankshaft hall sensor
• Dpf
• Drv
• Egr cooler bypass flap hall sensor (left rear of engine)
• Eti 1
• Eti 2
• Exhaust gas recirculation actuator (top left rear of engine)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Gnd
• Hfm-1
• Hfm-2
• Inj h
• Inj l
• Intake port shutoff actuator motor (top center of engine)
• Kwg
• Left intake port shutoff hall sensor (on left intake manifold port)
• Mot (+)
• Mot (-)
• Nca
• Ods
• Oil level check switch (left front of oil pan)
• Pnk/red
• Red
• Right hot film maf sensor (in right intake air duct)
• Right intake port shutoff hall sensor (on right intake manifold port)
• S-chv
• Sig

3.5L

3.5L, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz ML350 2014

List of elements for 3.5L, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz ML350 2014:

• (+)
• (-)
• +5v
• A s agr2p
• A t agr2m
• Dcm
• Dcp
• E f agrp1
• E f agrp2
• Fsoel
• Imp
• Inj h
• Inj l
• Intake manifold intake air temperature sensor (top left rear of engine)
• Ip1s
• Ip2s
• Ks2b
• Ls2hk
• Lsh1hk
• Lshk
• Lshvk1
• Me-sfi (me) control unit (left side of engine)
• Nca
• Nwae2
• Nwg1
• Nwge2
• Nwsa1
• Nwsa2
• Nwse1
• Nwse2
• Oil level check switch (bottom rear of engine)
• Right camshaft exhaust solenoid (front of right cylinder bank)
• Right camshaft intake solenoid (front of right cylinder bank)
• Right exhaust camshaft hall sensor (top front of right cylinder bank)
• Right intake camshaft hall sensor (top front of right cylinder bank)
• Sig
• Sig ntemp
• Sig res
• Sig-aslts
• Sig-press
• Throttle valve actuator
• Ths
• W15/1 (right front footwell)
• Zu 1
• Zu 2
• Zu 3
• Zu 4
• Zu 5
• Zu 6

3.5L, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz ML350 2014

List of elements for 3.5L, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz ML350 2014:

• (bottom front of engine) engine oil pump valve
• (rear of right cylinder bank) quantity control valve
• (top front of left cylinder bank) left exhaust camshaft hall sensor
• (top front of left cylinder bank) left intake camshaft hall sensor
• (top of engine) coolant thermostat heating element
• Cylinder ignition coils (cylinder ignition coils 1, 2 & 3: top of right cylinder bank) (cylinder ignition coils 4, 5 & 6: top of left cylinder bank)
• Left camshaft exhaust solenoid (front of left cylinder bank)
• Left camshaft intake solenoid (front of left cylinder bank)
• Sig
• Spark plugs
• W11
• W2 (right side of engine compt)
• X26-c1

3.5L, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz ML350 2014

List of elements for 3.5L, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz ML350 2014:

• (+)
• (-)
• (fuel injector cylinders 1, 2 & 3: top of right cylinder bank) (fuel injector cylinders 4, 5 & 6: top of left cylinder bank) fuel injector cylinders
• (rear of left fuel rail) fuel tank pressure & temperature sensor
• + -
• A t agr1m
• A t agr1p
• Crankshaft hall sensor
• Ef hfm1
• Inj h
• Inj l
• Knock sensor 1 (under intake manifold, on front of left cylinder bank)
• Knock sensor 2 (under intake manifold, on middle of left cylinder bank)
• Ks1a
• Ks1b
• Ks2a
• Kwga
• Lin c1
• Lsh2hk
• Lshvk2
• Lsu1a
• Lsu1p
• Lsu1un
• Lsu1vm
• Lsu2ia
• Lsu2ip
• Lsu2un
• Lsu2vm
• Me-sfi (me) control unit (left side of engine)
• Nwga1
• Pnk
• Pressure sensor downstream of throttle valve
• Ref1
• Sig
• Sig pmot
• Sig sw
• Sig-temp
• Starting/charging system
• Tmot1
• X26-c4

3.5L, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz ML350 2014

List of elements for 3.5L, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz ML350 2014:

• (center front of engine compt) low temperature circuit shutoff valve
• (center rear of engine) (w/ stratified charge) left exhaust gas recirculation positioner
• (in left exhaust, after catalytic converter) left oxygen sensor downstream of catalytic converter
• (in right exhaust, after catalytic converter) right oxygen sensor downstream of catalytic converter
• (top right rear of engine) intake manifold resonance flap switchover valve
• (top right rear of engine) intake manifold selector drum switchover valve
• Actuation motor
• Coolant temperature sensor
• Hall sensor
• Hot film mass air flow sensor & intake air temperature sensor (w/ stratified charge) (hot film mass air flow sensor: on air intake duct) (intake air temperature sensor: integral to hot film mass air flow sensor)
• Left oxygen sensor upstream of catalytic converter (in left exhaust, before catalytic converter)
• Nca
• Right exhaust gas recirculation positioner (w/ stratified charge) (center rear of engine)
• Right oxygen sensor upstream of catalytic converter (in right exhaust, before catalytic converter)
• W2 (right side of engine compt)

3.5L, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz ML350 2014

List of elements for 3.5L, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz ML350 2014:

• "check engine" malfunction indicator lamp
• (+)
• (-)
• (if equipped) fuel quality sensor
• (left side of engine compt) purge control valve
• (mounted on top of fuel tank)
• (upper right rear of radiator) (if equipped) radiator shutters actuator
• Can b h
• Can b l
• Can c h
• Can c l
• Computer data lines system
• Coolant temperature gauge
• Coolant temperature warning indicator lamp
• Ekp
• Ekp-ec-u
• Ekp-ec-v
• Ekp-ec-w
• Ekp-sh
• Engine diagnosis indicator lamp
• Fqs sig
• Fuel level indicator lamp
• Fuel pressure sensor (rear of right fuel rail)
• Fuel pump control unit (right front of luggage compt floor)
• Fuel reserve indicator lamp
• Fuse 25a
• Fuse 5a
• Hot at all times
• Hot w/ circuit 15 relay energized
• Instrument cluster
• Kds sig
• Left fuel tank fuel level indicator fill level sensor (in top of left side of fuel tank)
• Nca
• Power distribution system
• Rear fuse box (in right rear footwell)
• Red
• Right fuel tank fuel level indicator fill level sensor (in top of right side of fuel tank)
• S13
• Sam control unit (right kick panel)
• Uh2
• W/ eco start/ stop function
• W17/6 (under right seat of 2nd row)
• X18/3-c1
• X18/3-c2
• X25/2-c1
• X26-c1

3.5L, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz ML350 2014

List of elements for 3.5L, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz ML350 2014:

• (under front passenger's seat)
• +5v
• 15v
• A s hr (hss)
• A s sam
• Aav
• Accelerator pedal sensor (part of accelerator pedal assembly)
• Battery compartment prefuse box
• Can c h
• Can c l
• Can e1 h
• Can e1 l
• Can i h
• Can i l
• Circuit 87m relay
• Computer data lines system
• Cooling fans system
• Crash
• E a dst
• Ekpr
• Engine compartment fuse & relay module (right side of engine compt)
• Fuel tank pressure sensor (inside fuel tank)
• Fuse 15a
• Fuse 20a
• Fuse 40a
• Fuse 7.5a
• Hot at all times
• Kla
• Left nox sensor control unit (under vehicle, near left diesel particulate filter)
• Left temperature sensor upstream of nox storage catalytic converter (if equipped) (in left exhaust)
• Lpv
• Lues
• Me-sfi (me) control unit (left side of engine)
• Mr2
• Pnk
• Power distribution system
• Right nox sensor control unit (under vehicle, near right diesel particulate filter)
• Right temperature sensor upstream of nox storage catalytic converter (if equipped) (in right exhaust)
• S13
• Sewf 3
• Sp1s
• Sp2s
• Starting/charginh system
• Str
• Str+
• Tag 2
• W15/1 (right front footwell)
• W2 (right side of engine compt)
• X18/3-c2
• X25/2-c1
• X25/2-c2
• X26-c1