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Mercedes-Benz CLS Class x218 (2010 - 2017) - fuse box diagram

avatar Jonathan Yarden May 06, 2021 · 5 min. read

In this article you will find a description of fuses and relays Mercedes-Benz, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017

Fuse box in the engine compartment

Mercedes-Benz CLS Class w218 - fuse box diagram - engine compartment

Number A Description
1 25 Electronic Stability Program control unit
Premium Electronic Stability Program control unit
Blower motor
Blower regulator
2 30 Left front door control unit
3 30 Right front door control unit
4 20 Valid with engine 157: Fuel system control unit
5 7,5 Instrument cluster
Rear SAM control unit with fuse and relay module
Exterior lights switch
6 10 Valid for diesel engine: CDI control unit
Valid for gasoline engine: ME-SFI control unit
7 20 Starter circuit 50 relay
8 7,5 Supplemental restraint system control unit
9 15 Center console socket
10 30 Wiper motor
30 Switched via wiper park position heater relay: Wiper park position heater
11 7,5 Audio/COMAND display
Audio/COMAND control panel
12 7,5 Automatic climate control control and operating unit
Upper control panel control unit
Automatic transmission transmission mode button
Suspension button group
13 7,5 Steering column tube module control unit
Multifunction camera
Stereo multifunction camera
14 7,5 Electronic Stability Program control unit
Premium Electronic Stability Program control unit
15 7,5 Supplemental restraint system control unit
16 5 Valid with engine 157: DIRECT SELECT INTERFACE
17 30 Electrical glass tilting/sliding roof: Overhead control panel control unit
18 7,5 Analog clock
Backup relay
19 20 Electronic ignition lock control unit
20 40 Electronic Stability Program control unit
Premium Electronic Stability Program control unit
21 7,5 Brake lights switch
Glove compartment lamp switch
Front passenger seat occupied recognition and ACSR
Weight sensing system (WSS) control unit
22 15 Fan motor for internal combustion engine and air conditioning with integrated control
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
23 20 Valid for gasoline engine: Connector sleeve, circuit 87 M1i
Valid for diesel engine:
CDI control unit
Connector sleeve, circuit 87
24 15 Valid for diesel engine: Connector sleeve, circuit 87
Valid for engine 157, 276, 278: Connector sleeve, circuit 87 M1e
25 15 Valid for diesel engine: Oxygen sensor upstream of catalytic converter
Valid for gasoline engine: ME-SFI control unit
26 20 Radio
Radio with auto pilot system
COMAND controller unit
27 7,5 Valid for gasoline engine: ME-SFI control unit
7,5 Valid for diesel engine:
CDI control unit
Electronic ignition lock control unit
28 7,5 Instrument cluster
29 10 Right front lamp unit
30 10 Left front lamp unit
31A 15 Switched through the horns relay:
Left fanfare horn
Right fanfare horn
31B 15 Switched through the horns relay:
Left fanfare horn
Right fanfare horn
32 — Secondary air injection relay
33 10 Fully integrated transmission control controller unit
34 7,5 Fuel system control unit
35 — —
36 7,5 Night View Assist control unit
DISTRONIC electric controller unit
Relay
J Circuit 15 relay
K Terminal 15R relay
L Wiper park heater relay
M Starter circuit 50 relay
N Engine circuit 87 relay
O Horn relay
P —
Q Backup relay
R Chassis circuit 87 relay

Fuse box in the trunk

Mercedes-Benz CLS Class w218 - fuse box diagram - trunk compartment

Number A Description
37 7,5 Driver seat NECK-PRO head restraint solenoid
Front passenger seat NECK-PRO head restraint solenoid
38 15 Shooting Brake: Connected through liftgate windshield wiper relay: Tailgate wiper motor
39 30 Valid for left-hand drive vehicles:Left rear door control unit
Valid for right-hand drive vehicles: Left front door control unit
40 — —
41 30 Valid for left-hand drive vehicles: Right front door control unit
Valid for right-hand drive vehicles: Right rear door control unit
42 25 Fuel system control unit
43 7,5 Valid up to 31.08.2014: Telematics services communications module (Live Traffic Information)
Valid as of 01.09.2014:Tire pressure monitor control unit
44 30 Front passenger seat adjustment switch
45 30 Driver seat adjustment switch
46 7,5 Alarm siren (Interior monitoring)
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
47 — —
48 — —
49 40 Coupe: Switched through the rear window heater relay: Rear window heater
Shooting Brake: Switched through the rear window heater relay: Rear window antenna amplifier 1
50 50 Right front reversible emergency tensioning retractor
51 50 Left front reversible emergency tensioning retractor
52 — —
53 30 Trailer recognition control unit
54 15 Trailer recognition control unit
55 — —
56 15 Trailer socket
57 25 Trailer recognition control unit
58 25 Trailer recognition control unit
59 7,5 Left front bumper DISTRONIC (DTR) sensor
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)
60 7,5 Multicontour seat pneumatic pump
30 Active multicontour seat pneumatic pump
61 40 Coupe: Trunk lid control (KDS) control unit
Shooting Brake: Liftgate control unit
62 25 Driver seat control unit
63 25 Rear seat heater control unit
64 25 Front passenger seat control unit
65 7,5 Up to 31.05.2012: Steering wheel heater control unit
As of 01.06.2012: Steering column tube module control unit
66 7,5 Rear blower motor
67 40 Sound system amplifier control unit
68 15 AIRmatic control unit
69 25 Rear bass speaker amplifier
70 5 Tire pressure monitor control unit
Valid as of 01.09.2014 with engine 157, 276, 278 without USA version:Coolant circulation pump relay
71 15 Vehicle interior socket, front
72 15 Cargo area socket
73 5 Valid with engine 157: Transmission mode control unit
Stationary heater: Stationary heater radio remote control receiver
74 15 KEYLESS-GO control unit
Valid as of 01.09.2014:
Left front lamp unit
Right front lamp unit
75 20 Stationary heater unit
Valid as of 01.09.2014:
Left front lamp unit
Right front lamp unit
76 15 Rear center console socket
77 7,5 Weight sensing system (WSS) control unit
Navigation processor
78 7,5 Media interface control unit
79 5 Video and radar sensor system control unit
Valid as of 01.09.2014 with Driving assistance package Plus:
Radar sensors control unit
Chassis gateway control unit
80 5 Parking system control unit
81 5 Cellular telephone system antenna amplifier / compensator
Mobile phone electrical connector
82 7,5 Left front seat ventilation blower regulator
Right front seat ventilation blower regulator
83 7,5 Reversing camera
Navigation processor
Emergency call system control unit
84 5 Reversing camera control unit
Reversing camera power supply module
Reversing camera
SDAR/high definition tuner control unit
Digital Audio Broadcasting control unit
85 7,5 TV tuner (analog/digital)
Digital TV tuner
86 — —
87 7,5 Emergency call system control unit
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
88 15 Intelligent servo module for DIRECT SELECT
89 30 Trailer recognition control unit
Valid with engine 157: Fuel system control unit
90 — —
91 — —
92 15 KEYLESS-GO control unit
Relay
A Circuit 15 relay
B Circuit 15R relay (1)
C Heated rear window relay
D Valid for diesel engine: Fuel pump relay
E Shooting Brake: Liftgate windshield wiper relay
Electrically adjustable front seats memory package: Seat adjustment relay
G Circuit 15R relay (2)

Front prefuse box

Without ECO start/stop

Mercedes-Benz CLS Class w218 - fuse box diagram - front prefuse - without ECO start/stop

ECO start/stop

Mercedes-Benz CLS Class w218 - fuse box diagram - front prefuse - with ECO start/stop

Number A Description
150 — ECO start/stop function: Pyrofuse 150
151 60 Electrical power steering control unit
152 60 Front SAM control unit with fuse and relay module
153 100 —
154 100 Fan motor for internal combustion engine and air conditioning with integrated control (M4/7)
155 150 Valid for diesel engine: PTC heater booster
156 — —
157 150 Front SAM control unit with fuse and relay module
158 50 Valid for left-hand drive vehicles: Blower regulator
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
159 50 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
160 60 AlRmatic relay
161 — —
162 100 Front SAM control unit with fuse and relay module
163 150 Without ECO start/stop function: Rear SAM control unit with fuse and relay module
164 100 Without ECO start/stop: Rear SAM control unit with fuse and relay module

Coolant circulation pump relay

Mercedes-Benz CLS Class w218 - fuse box diagram - coolant circulation pump relay

AIRMATIC relay

Mercedes-Benz CLS Class w218 - fuse box diagram -AIRMATIC relay

The Instrument Panel Fuse Panel

Mercedes-Benz CLS Class w218 - fuse box diagram -instrument panel

Fused function A
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) 5

Additional battery relay and fuse

Mercedes-Benz CLS Class w218 - fuse box diagram -additional battery relay and fuse

Number Description
F96 Additional battery circuit 30 fuse
K114 ECO start/stop function additional battery relay

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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