Mercedes-Benz S-Class W221 (2005-2013) – Fuse Box Diagrams

No Description Amperes [A] twenty Valid for engines 629, 642, 651:

CDI control unit;

Valid for engines 156, 157, 272, 273, 275, 276, 278:

ME-SFI control unit [ME].

10 21 Valid for engines 156, 157, 272, 273, 275, 276, 278:

Terminal 87 of M1 connector sleeve;

Valid for model 221 with engine 629 and engine 642:

CDI control unit;

Fuel pump relay;

Valid for model 221 with engine 651:

Valve quantity control.

twenty 22 Valid for engines 156, 157, 272, 273, 276, 278:

Terminal connector sleeve 87.

15 23 up to 2008:
Terminal 87 connector sleeve;
Valid for engine 275 (model 216):
Terminal 87 M1 i;
Valid for engine 273 (model 216):
Terminal 87 M2e connector sleeve;
Valid for engine 272, 273 (model 221):
Compression fitting 87M2i Sleeve;
Valid for engine 642:
Terminal 87 connector sleeve;
from 2009:
Valid for engine 156, 157, 272, 273, 275, 276, 278:
Terminal 87 connector sleeve;
Valid for model 221 with engine 629 and engine 642:
Terminal 87 connector sleeve;
Valid for engine 156, 157, 272, 273, 276, 278:
crimp connector sleeve 87M2e;
Valid for engine 275:
terminal connector sleeve 87 M2i;
Valid for model 221 with engine 629 and engine 642:
Terminal 87 connector sleeve;
Valid for model 221 with engine 651:
Rear SAM control unit with fuse and relay module. twenty 24 Valid for engines 157, 272, 273, 276, 278:

Terminal connector sleeve 87M1e D;

Refers to engine 642:

CDI control unit.

25 25 Instrument cluster 7.5 26 Left Headlight Assembly 10 27 Right headlight assembly 10 28 Valid for engine 275:
EGS control unit;
Valid without engine 275: W
fully integrated transmission control control unit (VGS). 7.5 29 Rear SAM control unit with fuse and relay module 5 thirty Valid for engines 629, 642, 651:

CDI control unit;

Valid for engines 156, 157, 272, 273, 275, 276, 278:

ME-SFI control unit [ME];

Fuel pump control unit.

7.5 31 S400 Hybrid:

electric refrigerant compressor.

5 32 For model with ECO start / stop function:

Additional gear oil pump controller;

S 400 Hybrid:

Additional gear oil pump controller.

15 33 Valid from 1.9.10 without S 400 Hybrid:

ESP control unit;

S 400 Hybrid:

Battery management system control unit;

DC / DC converter control unit;

Power electronics control unit.

5 34 S 400 Hybrid:

Braking system control unit with energy recovery

5 35 Electric parking brake control unit 5 36 Data link connector (pin 16) 10 37 To the EIS control unit 7.5 38 Central gate control unit 7.5 39 Instrument cluster 7.5 40 Top control panel control unit 7.5 41 Wiper sub motor thirty 42 Main wiper motor thirty 43 Front cigarette lighter with ashtray illumination 15 44 – – 45 S 400 Hybrid: Electronic circulation pump 1 5 46 W221 with Active Body Control (ABC) model 216:

ABC;

W221 without Active Body Contro (ABC):

AIRmatic with ADS.

15 47 Front SAM control unit with fuse and relay module;

Steering column lifting and lowering motor.

15 48 up to 2008:

Front SAM control unit with fuse and relay module;

since 2009:

Steering column lifting and lowering motor.

15 49 Steering column module 10 50 AAC control unit [KLA] 15 51 up to 2008:

COMAND display

7.5 since 2009:

COMAND display;

SPLITVIEW display.

5 52 A. W221:

Left horn;

Right horn.

15 52 B W221, C216:

Left horn;

Right horn.

15 53 – – 54 AC air recirculation unit 40 55 Valid for gasoline engine:

Electric air pump

60 56 W221 without Active Body Contro (ABC):

AIRmatic compressor

40 57 up to 2008:

Wiper parking heater

40 from 2009:

Wiper parking heater

thirty 60 from 2009:

Electro-hydraulic power steering

5 61 C216; W221 – from 2009:

Restraint systems control unit

7.5 W221; up to 2008:

Restraint systems control unit

10 62 Night View Assist control unit 5 63 Valid for model 221 with engine 629 and engine 642 as of 1.9.08:

Fuel filter condensation sensor with heating element

15 64 W221 as of 1.9.06:

NECK-PRO driver’s headrest electromagnet;

Passenger’s headrest solenoid NECK-PRO.

7.5 W221 from ’09:

NECK-PRO driver’s headrest electromagnet;

Passenger’s headrest solenoid NECK-PRO.

10 65 Valid from 1.6.09:

12 V connector in the glove box

15 66 DTR control unit (Distronic or Distronic Plus) 7.5 Relay AND Air pump relay B Air suspension compressor relay C. Relay 87, engine D Terminal 15 relay E. Terminal 87 relay, chassis F. Horn relay G. Terminal 15R relay H. Circuit 50 of relay, starter J. Circuit 15 of relay, starter K. Wiper parking heater relay