ENGINE PERFORMANCE – Mercedes-Benz GLK250 Bluetec 4Matic 2014 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.1L TURBO DIESEL

2.1L Turbo Diesel, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014

List of elements for 2.1L Turbo Diesel, Engine Performance Wiring Diagram (1 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014:

• (+)
• (-)
• 30z
• 87m
• Batt
• C14m
• C16s
• C18m
• C20m
• C22i
• C2i
• C3m
• C41
• C4i
• C6i
• Can c h
• Can c l
• Can e h
• Can e l
• Cdi control module (top right rear of engine)
• Combustion engine & a/c w/ integrated control fan motor (behind radiator)
• Computer data lines system
• Crash
• Crh out anlg
• Differential pressure sensor/diesel particulate filter for onboard diagnostics (obd)
• Ekp
• Engine circuit 87 relay
• Front electrical prefuse box (right rear of engine compt)
• Front sam control unit w/ fuse & relay module (left rear of engine compt)
• Fuse 100a
• Fuse 10a
• Fuse 150a
• Fuse 15a
• Fuse 20a
• Fuse 7.5a
• Gnd
• Hot at all times
• Hot w/ circuit 15 relay energized
• Left switchable engine mount (if equipped) (left bottom rear corner of engine compt)
• Leus
• Lscp1
• Lsh1
• Lsvg1
• Lsvn1
• Mr1
• Mr2
• Pnk/red
• Radiator shutters actuator (if equipped) (upper right rear of radiator)
• Red
• Right switchable engine mount (if equipped) (right bottom rear corner of engine compt)
• Sig
• Sp1m
• Sp1s
• Sp2m
• Starting/ charging system
• Str
• Temperature sensor upstream of diesel particulate filter
• U pwg1
• W/ eco start/ stop function
• W/ engine mount
• W/ radiator shutters
• W16/5 (left rear engine compt)
• W9 (left front wheelhouse)
• X26-c1

2.1L Turbo Diesel, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014

List of elements for 2.1L Turbo Diesel, Engine Performance Wiring Diagram (2 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014:

• (+)
• (+) sh
• (-)
• 12v
• 30g
• Accelerator pedal sensor (accelerator pedal assembly)
• C11c
• C18m
• C20m
• C3m
• C4i
• C7i
• C9g
• Can b h
• Can b l
• Can c h
• Can c l
• Computer data lines system
• E rds
• Engine diagnosis indicator lamp
• Front sam control unit w/ fuse & relay module (left rear of engine compt)
• Fuel level indicator
• Fuel pressure sensor (fuel tank)
• Fuel pump (top of fuel tank)
• Fuel pump control module (under right rear seat)
• Fuse 7.5a
• Hot at all times
• Hot w/ chassis circuit 87 relay energized
• Hot w/ circuit 15 relay energized
• Instrument cluster
• Magnetic clutch
• Multi-function display
• Nca
• Oxygen sensor upstream of catalytic converter (in exhaust)
• Pnk/red
• Refrigerant compressor (left front of engine)
• Refrigerant compressor w/ magnetic clutch (if equipped)
• W/ magnetic clutch
• W/o
• W15/5 (left front wheelhouse)
• W16/3 (left side engine compt)
• W76 (under right rear seat)
• X26-c1
• X26/7
• X35/6
• X36/3-c2

2.1L Turbo Diesel, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014

List of elements for 2.1L Turbo Diesel, Engine Performance Wiring Diagram (3 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014:

• (fuel tank) left fuel level indicator sensor
• (fuel tank) right fuel level indicator sensor
• Bls 12v
• Bls h
• Bls l
• Bls m
• Boost pressure control flap pressure transducer (w/ piezo fuel injector) (lower left rear of engine block)
• Boost pressure control pressure transducer (w/ piezo fuel injector) (right front of engine)
• Boost pressure positioner (w/o piezo fuel injector)
• Boost pressure sensor (left side of engine)
• C30g
• C3i
• C7i
• C9i
• Can b h
• Can b l
• Can h h
• Can h l
• Computer data lines system
• Crankshaft hall sensor (left rear
• Electronic stability program control unit (left front of engine compt)
• Front electrical prefuse box (right rear of engine compt)
• Fuse 150a
• Fuse 20a (or 25a)
• Gnd
• Hot w/ quiescent current cutout relay energized
• Ig1
• Low pressure turbocharger boost pressure sensor (w/ piezo fuel injector)
• Nca
• Of engine)
• Pnk/red
• Pressure regulator valve (on fuel rail)
• Rail pressure sensor (on fuel rail)
• Rear sam control module w/ fuse & relay module (right side of trunk/cargo area)
• Red
• Sig
• Stop lamp switch (top of brake pedal assembly)
• W/ eco start/stop function
• W/ piezo fuel injector
• W/o eco start/stop function
• W/o piezo fuel injector
• W16/5 (left rear engine compt)
• W7 (right side of trunk/cargo area)
• X26-c1

2.1L Turbo Diesel, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014

List of elements for 2.1L Turbo Diesel, Engine Performance Wiring Diagram (4 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014:

• (+)
• (-)
• (at fuel injector 1 intake runner) fuel injector 1
• (at fuel injector 2 intake runner) fuel injector 2
• (at fuel injector 3 intake runner) fuel injector 3
• (at fuel injector 4 intake runner) fuel injector 4
• (not used)
• Cdi control module (top right rear of engine)
• Drv
• Ea lds
• Ep3
• Exhaust gas recirculation actuator (left rear of engine)
• Gnd
• Heat exchanger shutoff valve
• Inj h
• Inj l
• Kwdga
• Lift sig
• Lin c1
• Nca
• Pnk
• Quantity control valve
• Rds
• Shield
• Sig
• Tmot
• W/ piezo fuel injector
• W/o piezo fuel injector
• X26-c1

2.1L Turbo Diesel, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014

List of elements for 2.1L Turbo Diesel, Engine Performance Wiring Diagram (5 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014:

• (+)
• (-)
• (top left rear of engine) condensation sensor for fuel filter w/ heating element
• (top of engine, above cylinder)
• 1 cyl
• 2 cyl
• 3 cyl
• 4 cyl
• Charge air temperature sensor (bottom left front of engine)
• Coolant temperature sensor
• Exhaust gas recirculation cooler bypass switchover valve (lower left side of engine block)
• Fuel temperature sensor (left rear of engine)
• Glow output stage
• Glow plug cylinder 1
• Glow plug cylinder 2
• Glow plug cylinder 3
• Glow plug cylinder 4
• Hot film mass air flow sensor (top right front of engine)
• Htr 1
• Htr 2
• Intake air temperature sensor
• Lin c1
• Oil temperature sensor
• Red
• Shield
• Sig
• Starting/ charging system
• Temperature sensor upstream of turbocharger (front of intake manifold)
• Vent line heater element (right front of engine)
• W11

2.1L Turbo Diesel, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014

List of elements for 2.1L Turbo Diesel, Engine Performance Wiring Diagram (6 of 6) for Mercedes-Benz GLK250 Bluetec 4Matic 2014:

• (+)
• (-)
• (left side oil pan) oil level check switch
• (lower left front of engine) oil spray nozzle shutoff valve
• (lower left rear of engine) engine oil pump valve
• (lower left side of engine block) coolant pump switchover valve
• (on throttle body)
• (top left rear of engine)
• Camshaft hall sensor (top center
• Cdi control module (top right rear of engine)
• Coolant thermostat heating element
• Exhaust back pressure
• Exhaust gas recirculation bypass flap electronic vacuum regulator
• Gnd
• Head)
• Inj h
• Inj l
• Intake port shutoff actuator motor
• Knock sensor (cylinder 1 & 2) (left center of engine block)
• Knock sensor (cylinder 3 & 4) (left rear of engine block)
• Ks1 sig
• Ks2 sig
• Kts sig
• Nwg sig
• Of cylinder
• Oil temp
• Oss
• Pnk
• Pressure sensor (downstream of air filter) (top right front of engine)
• Sensor
• Shield
• Sig
• Sig 1
• Sig 2
• Throttle valve actuator
• W/ piezo fuel injector
• W/o piezo fuel injector