ENGINE PERFORMANCE – Mercedes-Benz S420 1994 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagrams (1 of 3) for Mercedes-Benz S420 1994

List of elements for 4.2L, Engine Performance Wiring Diagrams (1 of 3) for Mercedes-Benz S420 1994:

• Air mass sensor/ hot wire
• Coolant temperature sensor
• Fuel injection valves
• Fuel pump package
• Fuel pumps relay
• Fuse 30a
• G203 (right side foot well)
• G203 (right side footwell)
• G303 (right rear seat)
• Heated sensor
• Hot at all times
• Instrument cluster system
• Left adjustable cam timing solenoid
• Lh control unit
• Nca
• Rear fuse box
• Red
• Right adjustable cam timing solenoid
• Starting/charging system (starter lock-out/backup lamp/selector lever position recognition switch)
• Upshift delay solenoid/ switch- over valve

4.2L, Engine Performance Wiring Diagrams (2 of 3) for Mercedes-Benz S420 1994

List of elements for 4.2L, Engine Performance Wiring Diagrams (2 of 3) for Mercedes-Benz S420 1994:

• Air injection pump switch- over valve
• Air injection relay
• Camshaft position sensor
• Connector
• Crankshaft position sensor
• Diagnostic
• Egr switchover valve
• Electromagnetic air injection pump clutch
• Ezl/akr ignition control unit
• Fuel injection valves
• Fuse 7.5a
• Fuse box
• G100 (left front wheelhouse)
• G102 (left spring tower)
• G107 (behind right headlamp)
• Hot at all times
• Intake air temperature sensor
• Knock sensors (left & right banks)
• Nca
• Purge switchover valve
• Red
• Reference resistor
• Test
• Transmission overload protection switch

4.2L, Engine Performance Wiring Diagrams (3 of 3) for Mercedes-Benz S420 1994

List of elements for 4.2L, Engine Performance Wiring Diagrams (3 of 3) for Mercedes-Benz S420 1994:

• 'b' engagement switch
• Abs control unit
• Abs/asr control unit
• Acc
• Adaptive damping system control unit
• Base module
• Diagnostic socket
• Diagnostic test connector
• Exterior lamp failure monitoring unit
• Fuse 15a
• Fuse box
• G103 (right spring tower)
• G203 (right foot- well)
• Hot at all times
• Hot in run or start
• Ignition coil 1 (right bank)
• Ignition coil 2 (left bank)
• Ignition switch
• Instrument clusters system
• Kickdown switch/ transmission mode
• Kickdown valve
• Left high voltage distributor
• Module box blower motor
• Nca
• Off
• Red
• Right high voltage distributor
• Run
• Speed sensitive power steering control unit
• Start
• Starter lockout/ backup lamp switch selector lever position recognition
• Terminal block (power distribution)
• Top dead center (tdc) sensor
• W/ abs
• W/ abs/asr