Mercedes-Benz CLS-Class W218, C218, X218 (2010-2017) Fuse Diagram

Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz CLS-Class W218, C218, X218 (CLS 220, CLS 250, CLS 320, CLS 350, CLS 400, CLS 500 & CLS 63 AMG) (2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017).

Mercedes-Benz CLS-Class W218, C218, X218 (2010-2017)

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 located in the vehicle tool kit in the stowage compartment under the trunk floor.

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, switch off all electrical consumers, and remove the key from the ignition lock.
  • 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.

Engine Compartment Fuse Box

The block is located in the engine compartment on the left-hand side of the vehicle, when viewed in the direction of travel.

Engine Compartment Fuse Box Location

  • Make sure that the windshield wipers are turned off.
  • Open the hood.
  • Use a dry cloth to remove any moisture from the fuse box.
  • To open: take lines (1) out of the guides.
  • Move lines (1) to one side.
  • Open retaining clamps (2).
  • Remove the fuse box cover forwards.
  • To close: check whether the seal is lying correctly in the cover.
  • Insert the cover at the rear of the fuse box into the retainer.
  • Fold down the cover and close clamps (2).
  • Secure lines (1) in the guides.
  • Close the hood.

Engine Compartment Fuse Box Diagram

Fused functionA
1Electronic Stability Program control unit25
Premium Electronic Stability Program control unit
Blower motor
Blower regulator
2Left front door control unit30
3Right front door control unit30
4Valid with engine 157: Fuel system control unit20
5Instrument cluster7.5
Rear SAM control unit with fuse and relay module
Exterior lights switch
6Valid for diesel engine: CDI control unit10
6Valid for gasoline engine: ME-SFI control unit
7Starter circuit 50 relay20
8Supplemental restraint system control unit7.5
9Center console socket15
10Wiper motor30
Switched via wiper park position heater relay: Wiper park position heater
11Audio/COMAND display7.5
Audio/COMAND control panel
12Automatic climate control control and operating unit7.5
Upper control panel control unit
Automatic transmission transmission mode button
Suspension button group
13Steering column tube module control unit7.5
Multifunction camera
Stereo multifunction camera
14Electronic Stability Program control unit7.5
Premium Electronic Stability Program control unit
15Supplemental restraint system control unit7.5
16Valid with engine 157: DIRECT SELECT INTERFACE5
17Electrical glass tilting/sliding roof: Overhead control panel control unit30
18Analog clock7.5
Backup relay
19Electronic ignition lock control unit20
20Electronic Stability Program control unit40
Premium Electronic Stability Program control unit
21Brake lights switch7.5
Glove compartment lamp switch
Front passenger seat occupied recognition and ACSR
Weight sensing system (WSS) control unit
22Fan motor for internal combustion engine and air conditioning with integrated control15
Valid for diesel engine:
   CDI control unit
   Connector sleeve, circuit 87
Valid for gasoline engine:
   ME-SFI control unit
   Connector sleeve, circuit 87 M2e
Valid with engine 276: Radiator shutters actuator
23Valid for gasoline engine: Connector sleeve, circuit 87 M1i20
Valid for diesel engine:
   CDI control unit
   Connector sleeve, circuit 87
24Valid for diesel engine: Connector sleeve, circuit 8715
Valid for engine 157, 276, 278: Connector sleeve, circuit 87 M1e
25Valid for diesel engine: Oxygen sensor upstream of catalytic converter15
25Valid for gasoline engine: ME-SFI control unit15
26Radio20
Radio with auto pilot system
COMAND controller unit
27Valid for gasoline engine: ME-SFI control unit7.5
27Valid for diesel engine:
   CDI control unit
   Electronic ignition lock control unit
28Instrument cluster7.5
29Right front lamp unit10
30Left front lamp unit10
31ASwitched through the horns relay:15
   Left fanfare horn
   Right fanfare horn
31BSwitched through the horns relay:15
   Left fanfare horn
   Right fanfare horn
32Secondary air injection relay-
33Fully integrated transmission control controller unit10
34Fuel system control unit7.5
35Spare-
36Night View Assist control unit7.5
DISTRONIC electric controller unit
Relay
JCircuit 15 relay
KTerminal 15R relay
LWiper park heater relay
MStarter circuit 50 relay
NEngine circuit 87 relay
OHorn relay
PSpare
QBackup relay
RChassis circuit 87 relay

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Front prefuse box

Front prefuse box location

Front prefuse box

Fused functionA
150ECO start/stop function: Pyrofuse 150-
151Electrical power steering control unit60
152Front SAM control unit with fuse and relay module60
153Spare100
154Fan motor for internal combustion engine and air conditioning with integrated control (M4/7)100
155Valid for diesel engine: PTC heater booster150
156Spare-
157Front SAM control unit with fuse and relay module150
158Valid for left-hand drive vehicles: Blower regulator50
Valid for right-hand drive vehicles without DISTRONIC PLUS or without engine 157: Electronic Stability Program control unit
Valid with right-hand drive vehicles with DISTRONIC PLUS or with engine 157: Premium Electronic Stability Program control unit
159Valid for right-hand drive vehicles without DISTRONIC PLUS or without engine 157: Electronic Stability Program control unit50
Valid with right-hand drive vehicles with DISTRONIC PLUS or with engine 157: Premium Electronic Stability Program control unit
160AlRmatic relay60
161Spare-
162Front SAM control unit with fuse and relay module100
163Without ECO start/stop function: Rear SAM control unit with fuse and relay module150
164Without ECO start/stop: Rear SAM control unit with fuse and relay module100

Luggage Compartment Fuse Box

It is located behind the trim panel on the right-hand side of the trunk.

Luggage Compartment Fuse Box Location

  • Open the trunk lid.
  • To open: release cover (1) at the top right and left-hand sides with a flat object.
  • Open the cover (1) downwards in the direction of the arrow.

Luggage Compartment Fuse Box Diagram

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Fused functionA
37Driver seat NECK-PRO head restraint solenoid7.5
Front passenger seat NECK-PRO head restraint solenoid
38Shooting Brake: Connected through liftgate windshield wiper relay: Tailgate wiper motor15
39Valid for left-hand drive vehicles:Left rear door control unit30
Valid for right-hand drive vehicles: Left front door control unit
40Spare-
41Valid for left-hand drive vehicles: Right front door control unit30
Valid for right-hand drive vehicles: Right rear door control unit
42Fuel system control unit25
43Valid up to 31.08.2014: Telematics services communications module (Live Traffic Information)7.5
Valid as of 01.09.2014:Tire pressure monitor control unit
44Front passenger seat adjustment switch30
45Driver seat adjustment switch30
46Alarm siren (Interior monitoring)7.5
Interior protection and tow-away protection control unit (Interior monitoring)
Coupe: M 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier
Shooting Brake: Rear window antenna amplifier 1
Valid with engine 157, 276, 278 and USA version: Coolant circulation pump relay
47Spare-
48Spare-
49Coupe: Switched through the rear window heater relay: Rear window heater40
Shooting Brake: Switched through the rear window heater relay: Rear window antenna amplifier 1
50Right front reversible emergency tensioning retractor50
51Left front reversible emergency tensioning retractor50
52Spare-
53Trailer recognition control unit30
54Trailer recognition control unit15
55Spare-
56Trailer socket15
57Trailer recognition control unit25
58Trailer recognition control unit25
59Left front bumper DISTRONIC (DTR) sensor7.5
Right front bumper DISTRONIC (DTR) sensor
Left rear bumper radar sensor (Active Blind Spot Assist)
Right rear bumper radar sensor (Active Blind Spot Assist)
Left rear bumper intelligent radar sensor (Blind Spot Assist)
Intelligent radar sensor for right rear bumper (Blind Spot Assist)
60Multicontour seat pneumatic pump7.5
Active multicontour seat pneumatic pump30
61Coupe: Trunk lid control (KDS) control unit40
Shooting Brake: Liftgate control unit
62Driver seat control unit25
63Rear seat heater control unit25
64Front passenger seat control unit25
65Up to 31.05.2012: Steering wheel heater control unit7.5
As of 01.06.2012: Steering column tube module control unit
66Rear blower motor7.5
67Sound system amplifier control unit40
68AIRmatic control unit15
69Rear bass speaker amplifier25
70Tire pressure monitor control unit5
Valid as of 01.09.2014 with engine 157, 276, 278 without USA version: Coolant circulation pump relay
71Vehicle interior socket, front15
72Cargo area socket15
73Valid with engine 157: Transmission mode control unit5
Stationary heater: Stationary heater radio remote control receiver
74KEYLESS-GO control unit15
Valid as of 01.09.2014:
   Left front lamp unit
   Right front lamp unit
75Stationary heater unit20
Valid as of 01.09.2014:
   Left front lamp unit
   Right front lamp unit
76Rear center console socket15
77Weight sensing system (WSS) control unit7.5
Navigation processor
78Media interface control unit7.5
79Video and radar sensor system control unit5
Valid as of 01.09.2014 with Driving assistance package Plus:
   Radar sensors control unit
   Chassis gateway control unit
80Parking system control unit5
81Cellular telephone system antenna amplifier / compensator5
Mobile phone electrical connector
82Left front seat ventilation blower regulator7.5
Right front seat ventilation blower regulator
83Reversing camera7.5
Navigation processor
Emergency call system control unit
84Reversing camera control unit5
Reversing camera power supply module
Reversing camera
SDAR/high definition tuner control unit
Digital Audio Broadcasting control unit
85TV tuner (analog/digital)7.5
Digital TV tuner
86Spare-
87Emergency call system control unit7.5
Valid up to 31.08.2014 with engine 157, 276, 278 without USA version: Coolant circulation pump relay
Valid to 31.05.2016 with Live Traffic Information or eCall Europe emergency call system: Telematics services communications module
Valid as of 01.06.2016: HERMES control unit
Valid as from 01.06.2016 with Comfort telephony and Remote control for stationary heater: Antenna changeover switch for telephone and stationary heater
88Intelligent servo module for DIRECT SELECT15
89Trailer recognition control unit30
Valid with engine 157: Fuel system control unit
90Spare-
91Spare-
92KEYLESS-GO control unit15
Relay
ACircuit 15 relay
BCircuit 15R relay (1)
CHeated rear window relay
DValid for diesel engine: Fuel pump relay
EShooting Brake: Liftgate windshield wiper relay
Electrically adjustable front seats memory package: Seat adjustment relay
GCircuit 15R relay (2)

Other fuses and relays

Coolant circulation pump relay

Coolant circulation pump relay

AIRMATIC relay

AIRMATIC relay

The Instrument Panel Fuse

The 5A fuse protects the connection between the additional battery and the electronic ignition lock control unit and the front SAM control unit (for engine 276 as of 01.09.2014 or with engine 274).

The Instrument Panel Fuse

Additional battery relay and fuse

Additional battery relay and fuse

  • F96 – Additional battery circuit 30 fuse
  • K114 – ECO start/stop function additional battery relay