ENGINE PERFORMANCE – Mercedes-Benz GL550 2012 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

5.5L

5.5L, Engine Performance Wiring Diagram (1 of 5) for Mercedes-Benz GL550 2012

List of elements for 5.5L, Engine Performance Wiring Diagram (1 of 5) for Mercedes-Benz GL550 2012:

• Accelerator pedal sensor (top of accelerator pedal assembly)
• Activated charcoal filter shutoff valve (in right rear wheelwell)
• Air pump relay
• Akf
• Can-c h
• Can-c l
• Computer data lines system
• Electric suction fan engine & a/c w/ integrated control (center front of engine compt)
• Engine circuit 87 relay
• Engine compartment fuse & relay box (right side of engine compt)
• Front prefuse (right rear of engine compt)
• Fuel tank pressure sensor (inside fuel tank)
• Fuse 100a
• Fuse 10a
• Fuse 15a
• Fuse 40a
• Fuse 5a
• Hot at all times
• Hot w/ circuit 15 relay energized
• Hot w/ starter relay energized
• Load compartment fuse & relay box (right rear of cargo area)
• Lues
• Me-sfi (me) control module (center rear of engine)
• Mr1
• Mr2
• Mr3
• Mr4
• Pnk
• Purge control valve (left side of engine compt)
• Red
• Restraints system control module (under center console)
• Slp
• Sp1m
• Sp1s
• Sp2m
• Sp2s
• Starting/charging system
• Usp1
• W16/3 (left rear of engine compt)
• X18/3-c1
• X25/2-c1
• X25/2-c2
• X26-c2

5.5L, Engine Performance Wiring Diagram (2 of 5) for Mercedes-Benz GL550 2012

List of elements for 5.5L, Engine Performance Wiring Diagram (2 of 5) for Mercedes-Benz GL550 2012:

• (+)
• (-)
• (front of engine) (w/ wiring harness installed but nonfuntional) three disk thermostat valve
• (front of intake manifold)
• (left rear of engine) w11w2
• (not used)
• (on power steering pump) power steering pump pressure regulator valve
• (top center of engine)
• Can-d h
• Can-d l
• Computer data lines system
• Dkp2
• Dks +
• Dks-s
• Electric air pump (top front of engine)
• Ev 7
• Fuel pressure sensor
• Fuel pump control unit (under right 2nd row seat)
• Fuse 20a
• Fuse 5a
• Hot at all times
• Hot w/ circuit 15 relay energized
• Intake manifold tumble flap switchover valve
• Ks-m
• Ks-s
• Kw out
• Left knock sensor 2
• Load compartment fuse & relay box (right rear of cargo area)
• Me-sfi (me) control module (center rear of engine)
• Nca
• Red
• Right fuel pump (in right side of fuel tank)
• Right knock sensor 1
• Variable intake manifold switchover valve
• W17 (under right seat of 2nd row)
• X18/3-c1
• X18/3-c4
• X205
• X25/2-c1
• X26
• X26-c1

5.5L, Engine Performance Wiring Diagram (3 of 5) for Mercedes-Benz GL550 2012

List of elements for 5.5L, Engine Performance Wiring Diagram (3 of 5) for Mercedes-Benz GL550 2012:

• (in left exhaust, after twc) left o2 sensor downstream twc (kat)
• (in left exhaust, before twc) left o2 sensor upstream twc (kat)
• (in right exhaust, after twc) right o2 sensor downstream twc (kat)
• (in right exhaust, before twc) right o2 sensor upstream twc (kat)
• (right front of oil pan) oil level check switch
• (top left rear of engine) heating system shutoff valve
• (top right front of engine) air pump switchover valve
• Crankshaft hall sensor (left rear of engine)
• Hot film maf sensor (center rear of engine)
• Left exhaust camshaft hall sensor (left front of engine)
• Left intake camshaft hall sensor (left front of engine)
• Left intake manifold tumble flap position sensor (left rear of engine)
• Nca
• Pressure sensor (top left side of engine)
• Red
• Right intake manifold tumble flap position sensor (right rear of engine)
• Throttle valve actuator (on throttle body)

5.5L, Engine Performance Wiring Diagram (4 of 5) for Mercedes-Benz GL550 2012

List of elements for 5.5L, Engine Performance Wiring Diagram (4 of 5) for Mercedes-Benz GL550 2012:

• "check engine" mil indicator
• (rear of left cylinder bank) coolant temperature sensor
• Can- b h
• Can- b l
• Computer data lines system
• Ignition coil cylinders (5, 6, 7 & 8: top of left cylinder bank)
• Instrument cluster
• Left exhaust camshaft solenoid
• Red
• Spark plugs
• W11w1 (right rear of engine)
• W16/3 (left rear of engine compt)

5.5L, Engine Performance Wiring Diagram (5 of 5) for Mercedes-Benz GL550 2012

List of elements for 5.5L, Engine Performance Wiring Diagram (5 of 5) for Mercedes-Benz GL550 2012:

• (1, 2 & 3: on right cylinder bank, above respective cylinder) (4, 5 & 6: on left cylinder bank, above respective cylinder) fuel injector valves
• (front of right cylinder bank)
• (right front of engine) right exhaust camshaft hall sensor
• (right front of engine) right intake camshaft hall sensor
• At nw se1
• At nwsa1
• At nwse2
• Ev 1
• Ev 2
• Ev 3
• Ev 4
• Ev 5
• Ev 6
• Ev 8
• Ignition coil cylinders (1, 2, 3 & 4: top of right cylinder bank)
• Left intake camshaft solenoid (front of left cylinder bank)
• Lin
• Me-sfi (me) control module center rear of engine)
• Red
• Red/
• Right camshaft exhaust solenoid
• Right camshaft intake solenoid
• Spark plugs
• Starting/charging system
• W11w2 (left rear of engine)