Mercedes-Benz CL-Class & S-Class (C216/W221; 2006-2014) fuses and relays

 

In this article, we consider the third-generation Mercedes-Benz CL-Class (C216) and the fifth-generation Mercedes-Benz S-Class (W221), produced from 2006 to 2014. Here you will find fuse box diagrams of Mercedes-Benz CL550, CL600, CL63, CL65, S250, S280, S300, S320, S350, S400, S420, S450, S500, S550, S600, S63, S65 (2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014), get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

See other Mercedes-Benz CL-Class / S-Class:

Fuse Layout Mercedes-Benz CL-Class and S-Class 2006-2014


Cigar lighter (power outlet) fuses in the Mercedes-Benz CL-Class / S-Class are the fuses #117 (Rear cigar lighter), 134 (Luggage compartment socket), #140 (Rear cigar lighter / 115 V socket (from 2009)), #152 (115 V socket) in the Rear Fuse Box, and fuse #43 (Front cigar lighter) in the Engine Compartment Fuse Box.


Instrument Panel Fuse Box №1 (left)

Fuse box location

The fuse box is located on the left side of the instrument panel, behind the cover.The location of the fuses in the passenger compartment: Mercedes-Benz CL-Class / S-Class (C216/W221; 2006-2014)

Fuse box diagram

Instrument panel fuse box #1 diagram: Mercedes-Benz CL-Class / S-Class (2006-2014)


 

Assignment of the fuses in the Instrument Panel Fuse Box №1

Fused function Amp
92 Left front seat control unit 40
93 Restraint systems control unit
USA version: Weight Sensing System (WSS) control unit
7.5
94 from 2009: Multifunction camera 5
95
96 Tire pressure monitor [RDK] control unit 5
97 W221: Audio/video controller control unit (rear entertainment system) 7.5
98 Rear entertainment system: DVD player (from 2009) 7.5
99 from 2009: COMAND display, SPLITVIEW display 7.5
100 from 2009: Media interface control unit 5
101 Rear entertainment system: Left rear display, Right rear display 10
102 Right front seat control unit 40
103 ESP control unit 7.5
104 Audio tuner control unit 40
105
106 Japanese version: Electronic toll collection (ETC) control unit
Valid for South Korea as of 1.9.10: TV/tuner connector
Valid for navigation; from 2009: Navigation processor
1
107 SDAR control unit (SIRIUS satellite radio) (W221 from 2009)
Digital radio: Digital Audio Broadcasting control unit
HD radio: High definition tuner control unit
5
108 W221: Rear air conditioning control unit 5
109 W221: Rear blower intermediate connector 15
110 W221: Left rear multicontour backrest control unit, Right rear multicontour backrest control unit 7.5
111 Rear multicontour seat or rear entertainment system (model 221): RCP [HBF] control unit 5
112 W221; up to 2008: Left front door control unit, Right front door control unit
S 400 Hybrid: Front SAM control unit with fuse and relay module
5
113 S 400 Hybrid: DC/DC converter control unit 5

Instrument Panel Fuse Box №2 (right)

Fuse box location

It is located on the right side of the instrument panel, behind the cover.The location of the fuses in the passenger compartment: Mercedes-Benz CL-Class / S-Class (C216/W221; 2006-2014)

Fuse box diagram

Instrument panel fuse box #2 diagram: Mercedes-Benz CL-Class / S-Class (2006-2014)

Assignment of the fuses in the Instrument Panel Fuse Box №2

Fused function Amp
70 C216: Right door control unit
W221: Right front door control unit
40
71 Keyless Go control unit 15
72 S 400 Hybrid: Pyrotechnical separator 7.5
73 Japanese version: COMAND controller unit
TELE AID emergency call system (from 2009): Emergency call system control unit
5
74 TLC [HDS] control unit (Remote trunk closing) 30
75 S 400 Hybrid: Battery management system control unit, Power electronics control unit 10
76 S 400 Hybrid: Vacuum pump relay (+) 15
76 Valid for model 221 with engine 642.8: AdBlue® relay supply
77 Advanced sound system: Sound amplifier (from 2009) 50
78 S 65 AMG with engine 275: Additional fan relay (from 2009)
Valid for model 221 with engine 642.8: AdBlue® relay supply (from 2009)
25
78 S 400 Hybrid, CL 63 AMG with engine 157, 278: Charge air cooler circulation pump (from 2009) 15
79 Alarm signal horn with additional battery 7.5
80 C216: Left door control unit
W221: Left front door control unit
40
81 C216: Rear control unit 30
81 W221: Left rear door control unit 40
82 C216: Rear control unit 30
82 W221: Left rear door control unit 40
83 Intelligent servo module for DIRECT SELECT 30
84 Advanced sound system: Digital sound processor (from 2009) 20
85 Valid for AMG: Illuminated door sill moldings (from 2009) 10
86
87
88
89
90 Stationary heater: STH heater unit (C216), STH or HB heater unit (W221) 20
91 Stationary heater: STH radio remote control receiver
S 400 Hybrid: Front SAM control unit with fuse and relay module
5

Rear Fuse Box

Fuse box location

It is located between the rear seats.
Swing down center armrest, open cover behind center armrest, pull cover 1 forward in direction of the arrow.Rear Fuse Box (location): Mercedes-Benz CL-Class / S-Class (2006-2014)

Fuse box diagram

Rear Fuse Box (diagram): Mercedes-Benz CL-Class / S-Class (2006-2014)

 

Assignment of the fuses and relay in the Rear Fuse Box

Fused function Amp
115 Heated rear window 50
116 Valid for engine 157, 275, 278: Charge air cooler circulation pump
Valid for engine 156: Engine coolant circulation pump
S 400 Hybrid: Power electronics circulation pump 2
10
117 Rear cigar lighter 15
118 Valid for engine 272, 273, 642: Fuel pump (up to 2008)
Valid for model 221 with engine 629, 642: Fuel pump (from 2009)
30
118 S 400 Hybrid: Power electronics circulation pump 1
Valid for model 642.8 and engine 651 as of 1.6.11: Refrigerant compressor with magnetic
15
119 Front central operating unit 7.5
120
121 Audio tuner control unit 10
122 COMAND controller unit 7.5
123 W221: Right front reversible emergency tensioning retractor 40
124 W221: Left front reversible emergency tensioning retractor 40
125 up 31.5.09: Voice control system (VCS) control unit 5
126 Overhead control panel control unit 25
127 Lumbar pump (from 2009)
Multicontour seat pneumatic pump (Left/right front multicontour seats)
Pneumatic pump for dynamic seat control (Left and right dynamic multicontour seat)
30
128 Valid for engine 275 (up to 2008): Fuel pump control unit
Valid for engine 156, 157, 272, 273, 275, 276, 278, 642 (from 2009): Fuel pump control unit
25
129 up to 2008: Overhead control panel control unit (Power glass tilting/sliding roof)
from 2009: UPCI (Universal Portable Cell Phone Interface) control unit
25
130 Electric parking brake controller unit 30
131 Rear window antenna amplifier module 7.5
133 Trailer recognition control unit
Reversing camera (as of 1.9.10)
15
134 Luggage compartment socket 15
135 Park Assist; up 2008:
Radar sensors control unit (SGR)
Front short range radar sensor unit
Rear short range radar sensor unit
DISTRONIC PLUS up to 31.8.10 or Blind Spot Assist or Adaptive cruise control Plus Light: Radar sensors control unit (SGR) (from 2009)
PARKTRONIC or Exclusive parking assist: PTS control unit
7.5
136 Valid for model 221 with engine 642.8: AdBlue® control unit 7.5
137 Reversing camera (as of 1.9.10) 7.5
138 Navigation processor (from 2009) (up to 31.8.10)
Emergency call system control unit (from 2009)
Japanese version: TV/tuner connector (from 2009)
5
139 Rear backrest refrigerator box 15
140 Rear cigar lighter with ashtray illumination connector
115 V socket (from 2009)
15
141 Reversing camera control unit 5
142 Parktronic system (PTS) control unit
Distronic Plus: Radar sensors control unit (SGR)
Valid as of 1.9.10 for DISTRONIC PLUS and Active Blind Spot Assist or Active Lane Keeping Assist: Video and radar sensor system control unit
7.5
143 Rear seats control unit 25
144 Rear seats control unit 25
145 Trailer recognition control unit (up to 2008)
Trailer hitch socket (13-pin) (from 2009)
20
146 Trailer recognition control unit 25
147 up to 2008: TLC [HDS] control unit (Remote trunk closing) 30
148 up to 2008: Universal Portable CTEL Interface (UPCI [UHI]) control unit 7.5
148 from 2009: Panoramic sliding sunroof circuit 30 connector sleeve 25
149 up to 2008: Voice control system (VCS [SBS]) control unit 5
149 from 2009: Panoramic sliding sunroof control module 25
150 TV combination tuner (analog/digital)
Japanese version: TV/tuner connector (from 2009)
7.5
151 W221; up to 2008: Electric parking brake controller unit 25
151 W221; from 2009: Trailer recognition control unit 20
152 W221: Rear window antenna amplifier module 7.5
152 115 V socket: DC/AC converter control unit 25
Relay
M Terminal 15 relay
N Terminal 15R relay
O Power outlet relay
P Heated rear window relay
Q Valid for engine 156, 157, 275, 278, 629: Circulation pump relay
S 400 Hybrid: Valid for model 221.095/195: Power electronics circulation pump relay 2
R Cigar lighter relay
S Fuel pump relay
Valid for engine 642.8 and engine 651 as of 1.6.11: Connected through the fuel pump: Refrigerant compressor magnetic clutch
S 400 Hybrid: Power electronics circulation pump relay 1

Engine Compartment Fuse Box

Fuse box location

The fuse box is located in the engine compartment (left-side on LHD, or right-side on RHD).The location of the fuses in the engine compartment: Mercedes-Benz CL-Class / S-Class (C216/W221; 2006-2014)

Fuse box diagram

Under-hood fuse box diagram: Mercedes-Benz CL-Class / S-Class (2006-2014)

 

Assignment of the fuses and relay in the Engine Compartment Fuse Box

Fused function Amp
20 Valid for engine 629, 642, 651: CDI control unit
Valid for engines 156, 157, 272, 273, 275, 276, 278: ME-SFI [ME] control unit
10
21 Valid for engines 156, 157, 272, 273, 275, 276, 278: Terminal 87 Ml i 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: Quantity control valve
20
22 Valid for engines 156, 157, 272, 273, 276, 278: Terminal 87 connector sleeve 15
23 up to 2008:
Terminal 87 connector sleeve
Valid for engine 275 (model 216):
Terminal 87 M1 i connector sleeve
Valid for engine 273 (model 216):
Terminal 87 M2e connector sleeve
Valid for engine 272, 273 (model 221):
Terminal 87M2i connector 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:
Terminal 87M2e connector sleeve
Valid for engine 275:
Terminal 87 M2i connector sleeve
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

20
24 Valid for engines 157, 272, 273, 276, 278: Terminal 87Mle connector sleeve
Valid for engine 642: CDI control unit
25
25 Instrument cluster 7.5
26 Left front lamp unit 10
27 Right front lamp unit 10
28 Valid for engine 275: EGS control unit
Valid without engine 275: Fully integrated transmission control (VGS) control unit
7.5
29 Rear SAM control unit with fuse and relay module 5
30 Valid for engine 629, 642, 651: CDI control unit
Valid for engines 156, 157, 272, 273, 275, 276, 278: ME-SFI [ME] control unit Fuel pump control unit
7.5
31 S 400 Hybrid: Electric refrigerant compressor 5
32 Valid for model with ECO start/stop function: Transmission oil auxiliary pump control unit
S 400 Hybrid: Transmission oil auxiliary pump control unit
15
33 Valid as of 1.9.10 without model 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: Regenerative braking system control unit 5
35 Electric parking brake controller unit 5
36 Data link connector (Pin 16) 10
37 For EIS control unit 7.5
38 Central gateway control unit 7.5
39 Instrument cluster 7.5
40 Upper control panel control unit 7.5
41 Slave wiper motor 30
42 Master wiper motor 30
43 Front cigar lighter with ashtray illumination 15
44
45 S 400 Hybrid: Power electronics circulation pump 1 5
46 W221 with Active Body Control (ABC), model 216: ABC control unit
W221 without Active Body Contro (ABC): AIRmatic with ADS control unit
15
47 Front SAM control unit with fuse and relay module
Steering column up/down motor
15
48 up to 2008: Front SAM control unit with fuse and relay module

from 2009: Steering column in/out motor

15
49 Steering column module 10
50 AAC [KLA] control unit 15
51 up to 2008:  COMAND display  7.5
51 from 2009:
COMAND display
SPLITVIEW display
5
52A W221:
Left fanfare horn
Right fanfare horn
15
52B W221, C216:
Left fanfare horn
Right fanfare 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 unit 40
57 up 2008: Wiper park position heater 40
57 from 2009: Wiper park position heater 30
60 from 2009: Electrohydraulic power steering 5
61 C216; W221 – from 2009: Restraint systems control unit 7.5
61 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: Driver NECK-PRO head restraint solenoid, Front passenger NECK-PRO head restraint solenoid 7.5
64 W221 as of ’09: Driver NECK-PRO head restraint solenoid, Front passenger NECK-PRO head restraint solenoid 10
65 Valid as of 1.6.09: 12 Volt connector in glove box 15
66 DTR controller unit (Distronic or Distronic Plus) 7.5
Relay
A Air pump relay
B Air suspension compressor relay
C Terminal 87 relay, engine
D Terminal 15 relay
E Terminal 87 relay, chassis
F Fanfare horn relay
G Terminal 15R relay
H Circuit 50 relay, starter
J Circuit 15 relay, starter
K Wiper park heater relay

Engine Pre-Fuse Box

Engine Pre-Fuse Box: Mercedes-Benz CL-Class / S-Class (2006-2014)

Up to 2008

Fused function Amp
1 Starter 400
2 Not valid for engine 642: Alternator
Valid for engine 642: Alternator
150/200
3 150
4 AAC with integrated control additional fan motor 150
5 Valid for engine 642: PTC heater booster 200
6 Front SAM control unit with fuse and relay module 200
7 ESP control unit 40
8 ESP control unit 25
9 Front SAM control unit with fuse and relay module 20
10 Vehicle power supply control unit 7.5

From 2009

Fused function Amp
3 Rear SAM control unit with fuse and relay module 150
4 ECO start/stop function: ECO start/stop function relay
S 400 Hybrid: DC/DC converter control unit
Heated windshield: Heated windshield control unit
150
5 Valid for model 221 (Electrical preinstallation for rental vehicle): Special vehicle multifunction control unit (SVMCU [MSS]) 125
5 S 400 Hybrid: Vacuum pump 40
6 Right dashboard fuse box 80
7 Valid for model 221 with engine 629, 642, 651: PTC heater booster
Valid for model 221 (Electrical preinstallation for rental vehicle): Special vehicle multifunction control unit (SVMCU [MSS])
150
8 Front SAM control unit with fuse and relay module 80
9 Left dashboard fuse box 80
10 Rear SAM control unit with fuse and relay module 150

Interior Pre-fuse Box

Up to 2008

Fused function Amp
1 Front prefuse box (via on-board electrical network line pyrofuse)
2 Heated windshield control unit 125
3 Right instrument panel fuse box 80
4 Rear SAM control unit with fuse and relay module 200
5 Special vehicle multifunction control unit (SVMCU [MSS]) 100
6 Rear SAM control unit with fuse and relay module 150
7 Front SAM control unit with fuse and relay module 100
8 Left instrument panel fuse box 80
9 Front SAM control unit with fuse and relay module 5
10 C216: Emergency call system control unit 5

From 2009

Fused function Amp
2 Alternator 400
3 Electrohydraulic power steering
Valid for model 221 with engine 629, 642: Glow time output stage
150
4 Interior prefuse box ( unfused)
5 AAC with integrated control additional fan motor 100
6 Front SAM control unit with fuse and relay module 150
7 ESP control unit
S 400 Hybrid: Regenerative braking system control unit
40
8 ESP control unit
S 400 Hybrid: Regenerative braking system control unit
25
9 Front SAM control unit with fuse and relay module 25
10 Spare

AdBlue Fuse Block

Fused function Amp
A AdBlue control unit 7.5
B Heater circuit 1 20
C Heater circuit 2 20
D Spare


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