Electrical Equipment Specifications (Mercedes-Benz S-Class W140)

Note: Individual characteristics are also given in the text of the Chapter and, if their implementation is mandatory, are highlighted in bold.

Purpose and location of fuses

Mounting block F2

Mounting block F3

Fuse	Circuit	Current, A	Connection
1			Not connected
2	30	30	Auxiliary Fan Relay air conditioner
3	15R	30	Windscreen wiper drive motor (09/95)
4	30	40	Windscreen wiper drive motor (08/95)
5	15	40	Pre-fuse rear mounting block (in the luggage compartment)
6	30	40	Rear window heating (except for the Coupe) - until 1995, since 09/95 AIR pump, DRL daytime running light
* Fuse No.6 is located in the F1 fuse box.
7	58L	10	Up to 1992 headlight lens cleaners/since 1993 not connected
8	58L	7.5	Left Parking Light, Right Tail Light, Left Side Light
9	58R	7.5 (15)	Right parking light, Right rear side light, Number plate light, Headlamp lens cleaners, Exterior lighting switch (since 1993), Diode matrix engine speed increase (since 1996), Instrument cluster (since 1994), Cigarette lighter
10	58NS	7.5	Rear fog light
11	56b	7.5	Low beam left headlight
12	56b	7.5	Right low beam headlight
13	56a	7.5	Left headlight high beam/high beam indicator lamp
14	56a	7.5	Right headlight high beam/high beam indicator lamp
15	15R	15	SRS Airbag Malfunction Indicator Lamp, Windscreen Wiper Relay, Combination Relay, High Beam Warning Switch, Washer Fluid Pump, Rear Window Defogger Switch, Rain Sensor (from 09/1995), Seat Belt Adjuster, Vanity Mirrors
16	15R	10	Cigarette Lighter, Glove Box Light, Starter Interlock Relay Module (since 1994)
17	30	20	Ignition cut-off relay, Radio receiver (until 08/1995)
			Steering column angle sensor, Generic reader connector, DLC connector, Diagnostic module (OBD II), Instrument cluster, Vanity mirror light, Turn signal light, Hazard warning switch, Interior light
18	30	15	K/V, Auxiliary Fan Relay Module
19	15	7.5	Daytime running light DRL, Spark plugs, Pre-channel timer relay module, Base module, Seat belt warning lamp (from 09/1995)
20	15	10	A/C Push Button Control Module, A/C Compressor, Kickdown Switch Sensor, Purge Control Valve
21	15x	20	Windshield Washer Nozzles, Electrically Heated Rear View Mirrors, Transmission Oil Cooler, A/C Control Unit
22	15C	7.5	up to 0.8/1995: Ignition/start switch, Audio system, Seat belt warning light module, Restraint system adjustment, Combination relay, Heated front seats, Heated rear seats, from 09/1995: Not connected
23	15	7.5	Injectors, Instrument cluster, Thermostat switch, Ignition/start switch, Glow/start switch, Brake light switch, Center high level brake light
24	15	7.5	Mirror with automatic switching of day/night modes, Basic module, Purge control valve, Instrument cluster, Module for monitoring the condition of outdoor lighting equipment lamps, Interior lighting, Electronic air mixing pump coupling (engine 603), Brake Light Switch Sensor, Seat Belt Warning Module, DRL Daytime Running Light, Engine Control Module (hFM-SFI engines)
25	15	15	Turn indicator/alarm interrupter relay, Fan relay module, Sensor-switch for opening the starter circuit/reverse lights, Reverse lights, Switching solenoid valves (AT)
26	58N	10	Fog lights
27			Not connected
28	30	7.5	Automatic antenna
29	30	15	Front Seat Heating Control Module
30	15R/30	20	Left and right seat position memory, driver ergonomic parameter memory: Steering column adjustment, Rear view mirror adjustment, Electronic steering column adjustment
31	30	30	Power rear bench seat, Power left rear seat, Rear head restraint
32	30	30 (7,5)	Electric right rear seat, rear seat headrest (Coupe)
33			Not connected
34	15R	7.5	Heated Front Seats Control Module, Heated Rear Window, Relay Module (Coupe), Seat Belt Extender
35	15R	15 (7.5)	Rear window sunshade, Comfort system
36	30	10	Push Button Control Module K/V
37	30	30	Electric drive left front seat
38	30	30	Electric drive left front seat
39			Not connected
40	30	30	Electric drive of the right front seat
41	30	30	Electric drive of the right front seat

* Fuse No.35 is located in the F1 fuse box.

Mounting block F4

Fuse	Circuit	Current, A	Connection
1	15	15	Rear K/V
2	15	7.5	ATA Anti-Theft Alarm Control Module, IRCL Infrared Control Module, Starter Lock Relay Module (1993), Rear Seat Heater Control Module
3	15	20	Rear Cigarette Lighter, Single Lock, PSE Control Module, Door Closer
4	15	7.5	Rear vanity mirror (before 1994)
5	30	30	Electric window lifters
6	30	30	Electric window lifters
7	30	7.5 (20)	Rear vanity mirror illumination (until 08/1995), Seat Belt Extender Control Module (Coupe)
8	15	20	Rear cigarette lighter
9	30	30	Door Closer
10	30	7.5	Cell phone
11	30	20	Electric window lifter control module, Luggage compartment Undershoot, Rear Cabin Light, Rear Reading light, Rear Door Opening Light, Pneumatic Equipment Control Module (PSE), Internal Single Lock Switch
12	30	20	Rear Seat Heating Control Module
13	30	30	Fuel Pump Relay Module
14	30	25	Electric drive of the sunroof panel
15	30	25	ATA Anti-Theft Alarm Control Module, IRCL Infrared Control Module, Rear Headrests
16	30	30	Tuner Amplifier, Audio Amplifier, Radio Receiver
17	30	40

* Fuse #17 is located in the luggage compartment.

Incandescent lamps

Headlights

Low beam	H7 55W
High beam	H1 55 W
Fog light	H1 55 W
Parking light/one-way parking light	W 5 W
Direction indicator light	PY 21 W (yellow)

Rear lights

Brake light, rear side light light/one-way parking light	R 5 W
Rear side light/one-way parking light	R 5 W
Direction indicator light	R 21 W (cars with yellow plastic diffusers)
Direction indicators	PY 21 W (yellow) (cars with gray plastic diffusers)
From the driver's side
Rear fog light	R 21 W
Reverse light	R 21 W
License plate lighting	With 5 W (spotlight)

Tightening force of threaded connections, Nm

Tightening torques for fasteners are also given in the text of the Chapter and in some illustrations*.

* Tightening torques highlighted in bold in the text must be strictly observed; efforts not shown in bold are only approximate.