MB Medic Mercedes-Benz Repair Guides, Service, How To DIY
Location of fuses Mercedes-Benz S-Class, CL-Class:
| S-Class W 221 (2007-2013) S320 CDI, S350, S450, S500, S550, S420 CDI, S600 |
CL-Class C 216 (2006-2014) CL 500 CL 600 CL 63 CL 65 AMG |
- Prefuse Box in the Engine Bay – F32/3
- Fuse Box in the Engine Bay – Front SAM Control Unit – N10/1
- Fuses in the ride side of the dash F1/6
- Fuses in the Left side of dash F1/7
- Prefuse Box Hidden behind the dash, passenger side. P32/4
- Battery Fuse – Backup – F37
- Fuses in the trunk – Rear Sam Control Unit – N10/2
Prefuse Box in the Engine Bay – F32/3
| Fuse | Ampere Rating | Designation |
| F2 | 400 | Alternator |
| F3 | 150 | Electrohydraulic Power Steering A91/1 or glow time output stage N14/3 |
| F4 | Nofuse | Interior Prefuse box F32/4 |
| F5 | 100 | AAC with integrated control additional fan motor M4/7 |
| F6 | 150 | Front SAM control unit with fuse. Relay module N10/1 |
| F7 | 40 | ESP Control Unit, Brake System |
| F8 | 25 | ESP Control Unit, Brake System N30/6 |
| F9 | 30 | Front SAM control unit N10/1 |
| F10 | – | Not used |
Relays in Box in the Engine Bay – Front SAM Control Unit – N10/1
| Relay | Purpose |
| A | Air Pump Relay |
| B | Air Suspension Compressor Relay |
| C | Engine terminal 87 |
| D | Relay 15 -Terminal |
| R | Terminal 87 relay |
| F | Horn Relay |
| G | 15R Relay |
| H | Starter – Circuit 50 relay |
| J | Starter – Circuit 15 |
| K | Wiper park heater relay |
Fuses – Box in the Engine Bay – Front SAM Control Unit – N10/1
| FUSE | AMERE RATING | PURPOSE |
| F20 | 10 | Â Control Unit N3/9 or N3/10 |
| F21 | 20 | Circuit 87 – Fuel Pump Relay |
| F22 | 15 | Connector sleeve |
| F23 | 20 | Rear SAM Control Unit Fuse Box |
| F24 | 25 | CDI Control Unit N3/9 |
| F25 | 7.5 | Instrument Cluster – Dashboard |
| F26 | 10 | Left headlight – lamp unit |
| F27 | 10 | Right Headlight – lamp unit |
| F28 | 7.5 | EGS Unit Transmission control unit. |
| F29 | 5 | Rear fuse box and relay module Rear SAM N10/2 |
| F30 | 7.5 | Fuel System Control Unit, Engine Control Unit N3/9 N3/10 N118 |
| F31 | 5 | Refrigerant Compressor |
| F32 | 15 | Transmission oil pump control unit N89 |
| F33 | 5 | ESP Control Unit, Battery Management, Power Electronics |
| F34 | 5 | Braking System N30/6 |
| F35 | 5 | Electric parking brake -A13 |
| F36 | 10 | Data link connector – 16 PinX11/4 |
| F37 | 7.5 | EIS Control Unit N73 |
| F38 | 7.5 | CGW Central Gateway control unit, Audio, Sound |
| F39 | 7.5 | Instrument cluster |
| F40 | 7.5 | Upper control panel N72/1 |
| F41 | 30 | Wiper motor M6/7 |
| F42 | 30 | Master wiper motor M6/6 |
| F43 | 15 | Front cigar lighter with ashtray illumination |
| F44 | – | Unused |
| F45 | 5 | Power electronics pump M13/8 |
| F46 | 15 | ABC Control Unit N51/2 or AIRMATIC N51 |
| F47 | 15 | Steering column adjustment motor up or down |
| F48 | 15 | Steering column adjustment motor in / out |
| F49 | 10 | Steering column N80 |
| F50 | 15 | AAC Unit N22/1 |
| F51 | 5 | COMAND Display |
| F52A | 15 | Horns |
| F52B | 15 | Horns |
| F53 | – | Unused |
| F54 | 40 | Air Recirculation AC |
| F55 | 60 | Electric Air Pump |
| F56 | 40 | AirMatic Compressor Pump A9/1 |
| F57 | 30 | Wiper Heater R2/10 |
| F60 | 5 | Power Steering A91-1 |
| F61 | 7.5 | SRS Airbag Restraint System N2/7 |
| F62 | 5 | Night View Assist N101 |
| F63 | 15 | Fuel Filter Sensor B76/1 |
| F64 | 10 | NECK PRO Head Restraint Solenoids Y24/12 – Driver, Y24/13-Passenger |
| F65 | 15 | Outlet in the glove box |
| F66 | 7.5 | DTR Unit A89 |
Interior Fuses Right side of the dash F1/6
| Fuse Number | Ampere Rating | Â Designation |
| F70 | 40 | Door Control Unit – Right N69/2 |
| F71 | 15 | Keyless Go Control Unit N69/5 |
| F72 | 7.5 | Pyrotechnical Separator K88 |
| F73 | 5 | Emergency Call System Control Unit |
| F74 | 30 | TLC Control Unit |
| F75 | 10 | Battery Management |
| F76 | 15 | Vacuum pump relay |
| F77 | 50 | Sound Amplifier A2/13 |
| F78 | 25 | AdBlue Relay/ Additional Fan/ Charge Air Cooler Circulation Pump |
| F79 | 7.5 | Alarm H3/1 |
| F80 | 40 | Door Control Unit – Left Door N69/1 |
| F81 | 30 | Rear control unit CL model
Rear door control unit S Class |
| F82 | 30 | Rear door control unit |
| F83 | 30 | Intellignet Servo Unit. Direct Select |
| F84 | 20 | Sound Proceeding Unit A2/69 |
| F85 | 10 | Â Illumination for Door Sills |
| F86 | – | Not used |
| F87 | – | Not used |
| F88 | – | Not used |
| F89 | – | Not used |
| F90 | 20 | Heater unit |
| F91 | 5 | Front SAM unit |
Fuses Driver side, Left side of dash F1/7
| Fuse Number | Ampere Rating | Designation |
| F92 | 40 | Left front seat N32/1 |
| F93 | 7.5 | Weight sensing system N2/13 |
| F94 | 5 | Camera |
| F95 | – | Spare |
| F96 | 5 | TPM RDK Unit N88 |
| F97 | 7.5 | DVD Player |
| F98 | – | Spare |
| F99 | 7.5 | COMAND |
| F100 | 5 | Media Interface N125/1 |
| F101 | 10 | Rear Displays Left A40/5 RightA40/6 |
| F102 | 40 | Right front seat N32/2 |
| F103 | 7.5 | ESP Electronic Stability Program |
| F104 | 40 | Audio Radio Tuner |
| F105 | – | Not used |
| F106 | 5 | Navigation / TV Tuner/ Toll Collection |
| F107 | 5 | HD Tuner N87/8, Audio Broadcasting N87/3, SDAR Sirus Unit |
| F108 | 5 | Rear A/C N22/4 |
| F109 | 15 | Rear Air conditioner blower motor N29/2 |
| F110 | 7.5 | Rear Backrest control Unit N32/20 N32/21 |
| F111 | 5 | RCP Control Unit N72/2 |
| F112 | 5 | Fuse box, Front SAM |
| F113 | 5 | DC Converter |
| F114 | – | Not used |
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Prefuse Box Hidden behind the dash, passenger side. P32/4
| Fuse Location | Ampere Rating | Purpose |
| F3 | 150 | Rear SAM control unit N10/2 |
| F4 | 150 | Heated Windshield, DC Converter, ECO start/stop function |
| F5 | 40 | Vacuum Pump |
| F6 | 80 | Right dashboard fuse box F1/6 |
| F7 | 150 | Heater booster R22/3 |
| F8 | 80 | Front SAM module N10/1 |
| F9 | 80 | Left dashboard fuse box F1/7 |
| F10 | 150 | Rear SAM N10/2 |
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Battery Fuse – Backup – F38
Fuse 38 is a 5-ampere fuse for the additional auxiliary battery G1/7, EZS control unit N73, and Front SAM control unit.
Fuse Style used on the Mercedes-Benz S Class W221.
Standard blade fuses are used in the S-Class.
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Fuses in the trunk – Rear Sam Control Unit – N10/2
Fuse Ampere Rating Designation F115 50 Rear window heater F116 10 Power electronic pump F117 15 Rear cigar outlet F117 30 Fuel Pump F118 15 AC Compressor/ Power electronics pump/ fuel pump F119 7.5 Front central unit A40/9 F120 – Not used F121 10 Audio radio tuner F122 7.5 COMAND A40/3 F123 40 Emergency tension retractor – Right front A76/1 F124 40 Emergency tensioner retractor – left front A76 F125 5 Voice Control VCS N41/3 F126 25 Overhead control panel N70 F127 30 Pneumatic pump seat control M40/1, Seat pneumatic pump M40, Lumbar pmp M25/1 F128 25 Fuel pump N118 F129 25 Universal portable cell phone control unit UPCI N123/1 F130 30 Parking brake – Electric A13 F131 7.5 Rear window antenna amplifier A2/12 F133 5 Rear camera B84/3 F134 15 Rear trunk outlet socket X58/12 F135 7.5 Radar sensor / parktronic PTS N62 F136 7.5 AdBlue N118/5 F137 7.5 Rear Camera B84/3 F138 5 TV/tuner/emergency/ call/navigator F139 15 Rear backrest refrigerator A39/1 F140 15 120 outlet socket, rear cigarette lighter outlet F141 5 Rear camera N66/2 F142 7.5 Video and radar sensor N62 F143 25 Rear seat N25/6 F144 25 Rear seat N25/6 F145 20 Rear trailer hitch socket – 13 pin type – X58 F146 25 Trailer N28/1 F147 – Spare F148 25 Panoramic sliding sunroof F149 25 Panoramic sliding sunroof A98 F150 7.5 TV Tuner F151 20 Trailer F152 25 AC Converter from DC N24/3 F153 – Not used Relays in the trunk – Rear Sam Control Unit – N10/2
Relay
Purpose of relay
M Circuit 15 N10/2 N Terminal 15R O Power outlet relay R Cigar lighter relay S Fuel Pump
Fuses
Printed fuse charts that come with the car.
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