Mercedes-Benz S-Class, CL-Class (W220, C215) (1998-2005) Fuse Diagram

Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz S-Class, CL-Class (W220 & C215) (S280, S320, S350, S400 CDI, S430, S500, S600, S55, S65 AMG) (1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005).

Mercedes-Benz S-Class (W220) (1998-2005)

Mercedes-Benz CL-Class (C215) (1998-2005)

Checking and Replacing Fuses

The fuses in your vehicle serve to close down faulty circuits. If a fuse blows, all the components on the circuit and their functions stop operating. If a fuse has blown, the inside element will be melted. Blown fuses must be replaced with fuses of the same rating, which you can recognize by the color and value. The fuse ratings are listed in the fuse allocation chart.

If a newly inserted fuse also blows, have the cause traced and rectified at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

Notice

  • Before changing a fuse, secure the vehicle against rolling away and switch off all electrical consumers.
  • Always disconnect the battery before servicing high current fuses.
  • Always replace faulty fuses with the specified new fuses having the correct amperage. If you manipulate or bridge a faulty fuse or if you replace it with a fuse with a higher amperage, the electric cables could be overloaded. This could result in a fire. There is a risk of an accident and injury.
  • Only use fuses that have been approved for Mercedes-Benz vehicles and which have the correct fuse rating for the system concerned. Otherwise, components or systems could be damaged.

Instrument Panel Fuse Box

The fuse panel is located on the passenger’s side of the dashboard.

Instrument Panel Fuse Box Location

Instrument Panel Fuse Box Diagram

Fused functionA
78Alarm signal horn with additional battery7.5
Steering column module
EIS control unit
ME-SFI control unit
79Instrument cluster5
80Upper control panel control unit10
81Data link connector10
82AAC [KLA] control and operating unit 10
Heating system delivery unit
83Central gateway control unit10
84Instrument cluster5
Data link connector
85Instrument cluster5
86Front cigar lighter with ashtray illumination15

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Engine Compartment Fuse Box (Left)

It is on the left-hand side of the vehicle, when viewed in the direction of travel. Push the tabs (3) and remove the cover.

Engine Compartment Fuse Box Location (Left)

Engine Compartment Fuse Box Diagram (Left)

Fused functionA
1Wiper park heater relay40
Special version: Not used
2High pressure and return pump relay50
3Steering wheel adjustment, horizontal:15
   S relay 1, jacket tube longitudinal adjustment
   S relay 2, jacket tube longitudinal adjustment
4Steering wheel adjustment, vertical:15
   S relay 1, jacket tube, height adjustment
   S relay 2, jacket tube height adjustment
5Wiper On and Off relay40
6up to 31.8.02: Heater booster switch7.5
as of 1.9.02: Not used
Special version: Hydraulic brake5
7Special version: 2nd three-phase alternator7.5
8Special version: Hydraulic brake40
9up to 31.8.03:30
   Valid for air suspension:
      AIRmatic with ADS control module
   Valid for Active-Body-Control (ABC):
      ABC control module
Special version: ADS, suspension control
as of 1.9.03:20
   Valid for air suspension:
      AIRmatic with ADS control module
   Valid for Active-Body-Control (ABC):
      ABC control module
10Special version:15
Windshield wiper water pump
   Windshield washer water pump
   Circuit 15 connector sleeve
      Ignition coils
11up to 31.8.02: Front cigar lighter with ashtray illumination15
as of 1.9.02: VICS power supply separation point X1375
12up to 31.8.02: Sensor for vehicle-sensitive seat belt lock7.5
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
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):5
   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
19up to 31.8.02: Not used5
as of 1.9.02:
   Left front reversible emergency tensioning retractor (W220)
   Right front reversible emergency tensioning retractor (W220)
Special version: Instrument cluster7.5
20up to 31.8.02:5
   Instrument cluster
   Datalink connector
as of 1.9.02: Not used
Special version:7.5
   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
21up to 31.8.02: Instrument cluster5
as of 1.9.02: Not used
Special version:Instrument cluster7.5
22up to 31.8.02: Instrument cluster5
as of 1.9.02: COMAND operating, display and control unit15
as of 1.9.03; Japan version: COMAND operating, display and control unit7.5
Special version:Instrument cluster
23up to 31.8.02:10
   Climate control:
      AAC [KLA] control and operating module
      Circulation pump
      Left duovalve
      Right duovalve
as of 1.9.02 up to 31.8.03: TV tuner7.5
as of 1.9.02:
   Operating and display unit rear screen
   CD player with changer (in luggage compartment)
24up to 31.8.02: Diagnostic connector10
as of 1.9.02: Audio gateway control module20
Special version:10
   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
25up to 31.8.02: Not used25
as of 1.9.02: Sound amplifier
Special version: Jacket tube module10
26up to 31.8.02: Upper control panel control module10
as of 1.9.02: Not used
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

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Engine Compartment Fuse Box (Right)

It is on the right-hand side of the vehicle, when viewed in the direction of travel. Push the tabs (3) and remove the cover.

Engine Compartment Fuse Box Location (Right)

Engine Compartment Fuse Box Diagram (Right)

Fused functionA
28Fanfare horns relay15
29Motor electronics/chassis relay20
Special version: Motor electronics/chassis relay10
30Motor electronics/chassis relay20
31Air pump relay40
32Air compressor relay40
33Heating systems recirculation unit40
Special version: Electric suction-type fan60
34up to 31.8.02:5
   Traction system control module:
      Control module for ESP, SPS and BAS (electronic stability program (ESP), speed sensitive power steering (SPS), brake assist (BAS))
as of 1.9.02:10
   Traction system control module:
      Control module for ESP, SPS and BAS (electronic stability program (ESP), speed sensitive power steering (SPS), brake assist (BAS))
35up to 31.8.02: Not used-
as of 1.9.02: Valid for steering wheel heater: DC/DC converter control unit15
Special version:40
   Heating systems recirculation unit
      Blower regulator
      Blower motor
36with Distronic: DTR control module7.5
37ETC [EGS] control unit15
Electronic selector lever module control unit
VGS electric control unit
38USA version:Luggage compartment interior button (KIT)5
39Right front door control module40
40With Xenon headlamps :10
Headlamp range adjustment control module
41With stationary heater:20
   STH radio remote control receiver
   STH heater unit (C215)
   STH heater unit or heater booster heater unit (W220)
42Auxiliary air unit relay20
Special version:
   Transmission oil fan motor relay
   Engine oil fan unit: Temperature switch (100 °C)
43Diesel engine only:25
   CDI control module
   Starter relay, right front fuse and relay module
    Fuel pump relay (OM648 only)
44OM613:7.5
   CDI control module
   Intake manifold heating, right front fuse and relay module
44OM628:10
   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
45Not used-
46with Active-Body-Control (ABC): ABC control module 5
with air suspension: AIRmatic with ADS control module
47AAC multifunction sensor10
Control unit box blower motor
Automatic air conditioning multifunction sensor (valid for right-hand drive)
Coolant temperature switch (100 °C)
Special version: Multi-function sensor7.5
48M112/113; up to 31.8.02: Suction-type fan control module7.5
M137; up to 31.8.02: Engine and AC electric suction fan with integrated control
Special version: Suction fan control module
49Ignition coil (T1/1) up to (T1/8)15
Radio interference suppression capacitor
Special 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

Engine Compartment Additional Fuse Box

It is on the right front of the engine compartment.

Engine Compartment Additional Fuse Box Diagram

Fused functionA
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

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Fuse Box Below Right Rear Seat

Fuse Box Below Right Rear Seat Location

Fuse Box Below Right Rear Seat Diagram

Fused functionA
50Rear window roller blind relay10
51Towing sensor relay5
52Fuel pump relay30
53Rear window defroster relay50
54Trailer recognition control module10
Special version: Automatic fire warning and extinguishing system
55Trailer hitch socket (13-pin)25
Special version: PAS and special signal system30
56Trailer recognition control module30
Special version: Hydraulic window lift mechanism40
57Valid for remote trunk locking (HDFS):25
Trunk lid open relay
Trunk lid closed relay
Remote trunk closing hydraulic pump
Special version: Not used
58Keyless Go:7.5
   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
59Taxi version:Special vehicle multifunction control module (SVMCM)30
Special version: PAS MCS
60up to 31.8.02: Not used7.5
as of 1.9.02:
   Navigation processor
   VICS voltage supply separation point
   Rear window antenna amplifier module
61up to 31.8.02:15
   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
as of 1.9.02:7.5
   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
62Pneumatic system equipment with combined functions20
ATA inclination sensor (Special version)
63up to 31.8.02:7.5
   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
as of 1.9.02: Pneumatic pump for dynamic seat control30
64up to 31.8.02:7.5
   COMAND operating, display and control module
   Rear window antenna amplifier module
as of 1.9.02: Left front seat adjustment control unit with memory25
Special version:5
   D2B interface for permanently installed telephone
   D2B interface for portable cellular telephone
65Special version: D2B interface for portable cellular telephone5
66up to 31.8.02:Sound amplifier25
as of 1.9.02: Right front seat adjustment control unit with memory
Special version: Interior lamp with universal joint7.5
67Rear seats control module (not in the case of C215)25
68Rear air conditioning control module15
Rear AC refrigerant shutoff valve
Delivery unit for rear heating system
   Circulation pump
   Left duovalve
   Right duovalve
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
as of 1.9.02: Left front reversible emergency tensioning retractor40
72Rear control unit (C215)40
Left rear door control module (W220)
73up to 31.8.02: Right front seat adjustment control module with memory25
as of 1.9.02: Right front reversible emergency tensioning retractor40
74Rear control unit (C215)40
Right rear door control module (W220)
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