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MB Engine - Relay and Controller Locations

DesignationFunctionTypeLocation
J2Flasher unitRelayBehind instrument panel
J4HornRelay7
J13Fresh air fanRelay11?
J17Fuel pumpRelay10
J26Radiator stage 1Relay3?
J30Rear wash/wipeRelayAux 11
J31Wiper intervalController9
J59Load reductionRelay5
J88ECUControllerUnder right dash
J97Injector coolingRelayAux 9
J101Radiator - stage 2RelayAux 10
J104ABSControllerIn boot
J105ABS return pumpRelayIn top of ABS pump
J106ABS magnetic valveRelayIn top of ABS pump
J114Oil pressureControllerAux 6
J128Digital dashboard unitController 
J131Heated seat - leftControllerAux 14
J132Heated seat - rightControllerAux 13
J135Radiator fan - stage 3Relay2
J142Idle stabilisationControllerAux 7,8
J152Warning buzzer Aux 2
J153A/c magnetic clutchControllerAux 4
J155Turbo coolingControllerAux 5
J156ABS combination relayControllerAux 1
J187Differential locksControllerUnder rear seat
S43Electric windowsThermal cutoutAux 16

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