1996-2006 Mercedes-Benz CL & S-Class Fuses & Relays

The Mercedes-Benz CL-Class and S-Class W220 are two of the most luxurious and iconic cars ever made. They are also known for their complex electrical systems, which can be a challenge to troubleshoot when something goes wrong.

By understanding the fuses in your CL-Class or S-Class W220, you can be better prepared to troubleshoot electrical problems and keep your car running smoothly.

Cigar lighter (power outlet) fuse in the Mercedes-Benz CL-Class / S-Class is the fuse #86 (Front cigar lighter) in the Instrument panel fuse box.

Engine Compartment

Fuse Box-1

Fuse NumberProtected ComponentsFuse Amp. Rating
1Wiper park heater relay Special version: Not used40
2High pressure and return pump relay50
3Steering wheel adjustment, horizontal:
S relay 1, jacket tube longitudinal adjustment
S relay 2, jacket tube longitudinal adjustment
15
4Steering wheel adjustment, vertical:
S relay 1, jacket tube, height adjustment
S relay 2, jacket tube height adjustment
15
5Wiper On and Off relay40
6up to 31.8.02: Heater booster switch
as of 1.9.02: Not used
7,5
6Special version: Hydraulic brake5
7Special version: 2nd three-phase alternator7,5
8Special version: Hydraulic brake40
9up to 31.8.03:
Valid for air suspension:
AIRmatic with ADS control module
Valid for Active-Body-Control (ABC):
ABC control module
Special version: ADS, suspension control
30
9as of 1.9.03:
Valid for air suspension:
AIRmatic with ADS control module
Valid for Active-Body-Control (ABC):
ABC control module
20
10Special version:
Windshield wiper water pump
Windshield washer water pump
Circuit 15 connector sleeve
Ignition coils
15
11up to 31.8.02: Front cigar lighter with ashtray illumination15
11as of 1.9.02: VICS power supply separation point X1375
12up to 31.8.02: Sensor for vehicle-sensitive seat belt lock
as of 1.9.02: Not used
Special version:
Sensor for left side airbag and window airbag
Sensor for right side airbag and window airbag
7,5
13Left front door control module40
14Special version: Hydraulic brake5
15Special version: Hydraulic brake40
16Stop light switch7,5
17C215: Vehicle-sensitive seat belt lock sensor7,5
18Valid for D-net portable CTEL (D2B) (preinstallation):
Portable CTEL connector
Valid for MB D-net telephone (D2B):
D2B interface for permanently installed telephone
Valid for MB D-net telephone (D2B) with Tele Aid emergency call system:
TELE AID control module
Valid for MB D-net telephone (D2B) with E-call emergency call system:
D2B-Interface fixed installation
Frequency selector control module
Emergency call control module
5
19up to 31.8.02: Not used
as of 1.9.02:
Left front reversible emergency tensioning retractor (W220)
Right front reversible emergency tensioning retractor (W220)
5
19Special version: Instrument cluster7,5
20up to 31.8.02:
Instrument cluster
Datalink connector
as of 1.9.02: Not used
5
20Special version:
Diagnostic cables connector sleeve:
Instrument cluster
Data link connector
Separation point
Compact wiring harness/diagnosis module II, cockpit
Intermediate connector
Diagnosis/taillamp wiring harness 16-pin
Measuring connector
Data link connector
7,5
21up to 31.8.02: Instrument cluster
as of 1.9.02: Not used
5
21Special version: Instrument cluster7,5
22up to 31.8.02: Instrument cluster5
22as of 1.9.02: COMAND operating, display and control unit15
22as of 1.9.03; Japan version: COMAND operating, display and control unit
Special version: Instrument cluster
7,5
23up to 31.8.02:
Climate control:
AAC [KLA] control and operating module
Circulation pump
Left duovalve
Right duovalve
10
23as of 1.9.02 up to 31.8.03: TV tuner
as of 1.9.02:
Operating and display unit rear screen
CD player with changer (in luggage compartment)
7,5
24up to 31.8.02: Diagnostic connector10
24as of 1.9.02: Audio gateway control module20
24Special version:
Diagnostic cables connector sleeve:
Instrument cluster
Data link connector
Separation point
Compact wiring harness/diagnosis module II, cockpit
Intermediate connector
Diagnosis/taillamp wiring harness 16-pin
Measuring connector
Data link connector
10
25up to 31.8.02: Not used
as of 1.9.02: Sound amplifier
25
25Special version: Jacket tube module10
26up to 31.8.02: Upper control panel control module
as of 1.9.02: Not used
10
27Not used
Relay
AWiper park heater relay
BRelay for C.15
CRelay for C.15R
DSteering column forward/back adjustment relay 1
ESteering column forward/back adjustment relay 2
FHigh pressure and return pump relay
GWiper position 1 and 2 relay
HWiper on and off relay
ISteering column height adjustment relay 1
JSteering column height adjustment relay 2
VSpecial version: Brake booster hydraulic unit relay
WSpecial version: Brake booster hydraulic unit safety relay

Fuse Box-2

Fuses NumberProtected ComponentsFuses Amp. Rating
28Fanfare horns relay15
29Motor electronics/chassis relay20
29Special version: Motor electronics/chassis relay10
30Motor electronics/chassis relay20
31Air pump relay40
32Air compressor relay40
33Heating systems recirculation unit40
33Special version: Electric suction-type fan60
34up to 31.8.02:
Traction system control module:
Control module for ESP, SPS and BAS (electronic stability program (ESP), speed sensitive power steering (SPS), brake assist (BAS))
5
34as of 1.9.02:
Traction system control module:
Control module for ESP, SPS and BAS (electronic stability program (ESP), speed sensitive power steering (SPS), brake assist (BAS))
10
35up to 31.8.02: Not used
35as of 1.9.02: Valid for steering wheel heater: DC/DC converter control unit15
35Special version:
Heating systems recirculation unit
Blower regulator
Blower motor
40
36with Distronic: DTR control module7,5
37ETC [EGS] control unit
Electronic selector lever module control unit
VGS electric control unit
15
38USA version:Luggage compartment interior button (KIT)5
39Right front door control module40
40With Xenon headlamps : Headlamp range adjustment control module10
41With stationary heater:
STH radio remote control receiver
STH heater unit (C215)
STH heater unit or heater booster heater unit (W220)
20
42Auxiliary air unit relay
Special version:
Transmission oil fan motor relay
Engine oil fan unit: Temperature switch (100 °C)
20
43Diesel engine only:
CDI control module
Starter relay, right front fuse and relay module
Fuel pump relay (OM648 only)
25
44OM613:
CDI control module
Intake manifold heating, right front fuse and relay module
7,5
44OM628:
CDI control module
Starter relay, right front fuse and relay module
Engine and AC electric suction fan with integrated control
Charge fan circulation pump
OM648:
CDI control unit
CDI relay
AAC with integrated control additional fan motor
10
45Not used
46with Active-Body-Control (ABC): ABC control module
with air suspension: AIRmatic with ADS control module
5
47AAC multifunction sensor
Control unit box blower motor
Automatic air conditioning multifunction sensor (valid for right-hand drive)
Coolant temperature switch (100 °C)
10
47Special version: Multi-function sensor7,5
48M112/113; up to 31.8.02: Suction-type fan control module
M137; up to 31.8.02: Engine and AC electric suction fan with integrated control
Special version: Suction fan control module
7,5
49Ignition coil (T1/1) up to (T1/8)
Radio interference suppression capacitor
15
49Special version: Suction fan control module7,5
Relay
KEngine electronics/chassis relay
LStarter relay
MOnly valid for diesel: CDI relay
NSecondary air pump relay
OAir compressor relay
PFanfare horns relay
VSpecial version: Brake booster hydraulic unit relay
WSpecial version: Brake booster hydraulic unit safety relay

Auxiliary fuse and relay box

1996-2006-mercedes-benz-cl-and-s-class-engine-compartment-auxiliary-and-relay-box-diagram-carsfuse.com
Fuse/Relay NumberProtected ComponentsFuse Amp. Rating
87Motronic relay20
88Motronic relay20
89Not used
90Charge air cooler circulation pump10
91as of 1.9.03: Intank fuel pump10
Relay
VMotronic relay
WCharge air relay
XIntank fuel pump relay

Instrument Panel

Fuse NumberProtected ComponentsFuse Amp. Rating
78Alarm signal horn with additional battery
Steering column module
EIS control unit
ME-SFI control unit
7.5
79Instrument cluster5
80Upper control panel control unit10
81Data link connector10
82AAC [KLA] control and operating unit
Heating system delivery unit
10
83Central gateway control unit10
84Instrument cluster
Data link connector
5
85Instrument cluster5
86Front cigar lighter with ashtray illumination15

Fuse Box below the right rear seat

Fuse NumberProtected ComponentsFuse Amp. Rating
50Rear window roller blind relay10
51Towing sensor relay5
52Fuel pump relay30
53Rear window defroster relay50
54Trailer recognition control module
Special version: Automatic fire warning and extinguishing system
10
55Trailer hitch socket (13-pin)25
55Special version: PAS and special signal system30
56Trailer recognition control module30
56Special version: Hydraulic window lift mechanism40
57Valid for remote trunk locking (HDFS):
Trunk lid open relay
Trunk lid closed relay
Remote trunk closing hydraulic pump
Special version: Not used
25
58Keyless Go:
Keyless Go control module
Keyless Go left front door antenna
Keyless Go left rear door antenna (W220)
Keyless Go left rear antenna (C215)
Keyless Go right front door antenna
Keyless Go right rear door antenna (W220)
Keyless Go right rear antenna (C215)
Keyless Go left front door lift solenoid
Keyless Go left rear door lift solenoid (W220)
Keyless Go right front door lift solenoid
Keyless Go right rear door lift solenoid (W220)
Special version: Automatic fire warning and extinguishing system
7.5
59Taxi version:Special vehicle multifunction control module (SVMCM)
Special version: PAS MCS
30
60up to 31.8.02: Not used
as of 1.9.02: Navigation processor, VICS voltage supply separation point, Rear window antenna amplifier module
7,5
61up to 31.8.02:
Radio
Rear window antenna amplifier module
CD player with changer (in luggage compartment)
COMAND operating, display and control module
Telephone circuit connector 15C
TV tuner
Video decoder
Relief relay, circuit 15
Navigation processor
Traffic data recorder
15
61as of 1.9.02:
Hands-free system control unit
Voice control system control unit
Portable CTEL connector
E-Call control unit
Telephone transmitter/receiver, D2B
Selection switch for telephone handset, front and rear (W220)
CTEL interface
CTEL compensator
Telephone interface
Telephone transmitter/receiver and TELE AID, D2B
Telecommunications control unit (as of 1.9.03)
Bluetooth module (as of 1.9.03)
Rear telephone handset (as of 1.9.03 W220)
E-net compensator (as of 1.9.03)
Operating and display unit display in rear (as of 1.9.03)
GPS box control unit (as of 1.6.04)
Universal Portable CTEL Interface (UPCI [UHI]) control unit (as of 1.6.04)
Emergency call system control unit (as of 1.6.04)
Special version: Not used
7,5
62Pneumatic system equipment with combined functions
ATA inclination sensor (Special version)
20
63up to 31.8.02:
D2B interface for permanently installed telephone
CTEl transmitter / receiver if emergency call system (TELE AID) fitted,
TELE AID control module
Voice control system control module if emergency call system (TELE AID) fitted,
Portable CTEL connector
Traffic data recorder
7,5
63as of 1.9.02: Pneumatic pump for dynamic seat control30
64up to 31.8.02:
COMAND operating, display and control module
Rear window antenna amplifier module
7,5
64as of 1.9.02: Left front seat adjustment control unit with memory25
64Special version:
D2B interface for permanently installed telephone
D2B interface for portable cellular telephone
5
65Special version: D2B interface for portable cellular telephone5
66up to 31.8.02:Sound amplifier
as of 1.9.02: Right front seat adjustment control unit with memory
25
66Special version: Interior lamp with universal joint7,5
67Rear seats control module (not in the case of C215)25
68Rear air conditioning control module
Rear AC refrigerant shutoff valve
Delivery unit for rear heating system
Circulation pump
Left duovalve
Right duovalve
15
69Valid for rear air conditioning: Rear air conditioning control module15
70Tire pressure monitor control module10
71up to 31.8.02: Left front seat adjustment control module with memory25
71as of 1.9.02: Left front reversible emergency tensioning retractor40
72Rear control unit (C215)
Left rear door control module (W220)
40
73up to 31.8.02: Right front seat adjustment control module with memory25
73as of 1.9.02: Right front reversible emergency tensioning retractor40
74Rear control unit (C215)
Right rear door control module (W220)
40
75With Parktronic system: PTS control module10
76Rear backrest refrigerator box15
77Overhead control panel control unit40
Relay
QRear window roller blind relay
RTowing sensor relay
SCircuit 15 relay
TFuel pump relay
URear window defroster relay
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Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.

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