Fuses and relays Mercedes-Benz S-Class (W222 / C217, 2013 - 2020)

The premiere of the S-Class in the back of the W222 took place in May 2013. When creating the interior, its long-wheelbase version was taken as a basis, so that the maximum comfort on the back sofa was ensured. In 2017, the car went through restyling. In this material, we will analyze in detail the fuse diagrams of the sixth generation Mercedes S-class (W222 / C217: S300, S350, S400, S450, S500, S550, S560, S600, S650, S63, S65) 2013, 2014, 2015, 2016, 2017, 2018 and 2019, 2020  release.

general view of the car
Here you will find the locations and photos of the fuse blocks. Separately, we note the elements responsible for the cigarette lighter.

In the trunk

The location of the fuse box in the luggage compartment of the car
The unit is located on the right side of the trunk, behind the trim.

Diagram
No. A Decryption
S - Relay circuit 15 
T - Heated rear window relay
U - cup holder and relay sockets at the back
V - Ad blue
W - circuit 15R
X - refrigerator and sockets of the 1st row of seats
Y - Stock
1 - Connection of circuit 30 "E1"
2 - Circuit connection 30g "E2"
400 10 Parking system control unit (Active Parking Assist or 360 degree code camera)
401 5 Trunk lid control unit
402 7.5 Rear infotainment control unit
403 - Stock
404 7.5 Armrest heater control unit
405 7.5 Sound system amplifier control unit Control unit
tweeter, front left door Tweeter control unit
front right door
406 - Stock
407 - Stock
408 5 Tuner
409 5 360 ° camera control unit
Rear View Camera
410 5 Chamber lid control unit
411 5 tire pressure sensor
412 7.5 heated rear seat
413 10 Left rear display
Right rear display
414 7.5 Rear cellular telephone system antenna amplifier / compensator
Rear stand / mobile phone contact plate
Telephone module with Bluetooth® (SAP profile)
415 - Reserve
416 - Reserve
417 20 Trailer detection control unit
418 - Reserve
419 - Reserve
420 30 AC / DC converter control unit
421 30 Pneumatic pump with multi-circuit seat
422 30 W222: Right rear door control unit.
423 - Reserve
424 40 Rear SAM unit
425 - Reserve
426 30 Bass speaker booster
427 20 Armrest heater control unit
428 15 Trailer detection control unit
429 10 Rear cup holder
430 15 Rear cigarette lighter Mercedes 222
12V socket on the rear left center console
431 15 Fridge in the back of the back
432 10 Rear SAM unit
433 25 Ad Blue® block
434 15
435 20
436 20 Rear cup holder
437 - Reserve
438 7.5 C217 with engine157: right exhaust flap drive.
439 7.5 C217 with engine157: left exhaust flap drive.
440 - Reserve
441 -
442 -
443 -
444 -
445 5 Stationary heater radio control receiver
446 5 Aerial amplifier FM 1, AM, CL [ZV] and KEYLESS-GO
447 7.5 Hybrid: battery management system control unit
448 - Reserve
449 -
450 -
451 15 Trailer socket 
452 5 Rear Left Bumper Radar Sensor
Rear Right Bumper Radar Sensor  
Rear center bumper radar sensor
453 5 Front bumper radar sensor, left
  • Front bumper radar sensor,  
  • control unit COLLISION PREVENTION ASSIST
454 5
  • Ad Blue® block
  • Fuel system control unit
455 15 Fully integrated transmission control unit
456 - Reserve
457 7.5 Valid for lithium-ion battery: starter battery capacitor
458 - Reserve
459 - Reserve
460 15 Front cigarette lighter fuse
461 15 12V socket on the rear right console
12V socket
AC / DC converter control unit
462   Luggage compartment socket
463   Reserve
464 20 Trailer detection control unit
465 30 Electric parking brake control unit
466 30 Front left door control unit
467 10 KEYLESS-GO module
468 30 Electric parking brake control module
469 25 Fuel system control module
470 30 Rear left seat heater control module 
Rear seat heater control module
471 30 Rear Right Seat Heater Control Module
472 30 C217, A217: Rear control unit
473 20 Trailer recognition control module
475 40 Sound system amplifier control module
476 40
477 40 Active Belt Buckle Control Module
C217, A217: Rear control unit
478 30 Left rear seat control module
479 40 Active Belt Buckle Control Module
480 30 Right rear seat control module
481 5 Reversible front left emergency pull retractor
482 5 W222: Control unit MAGIC SKY CONTROL
482 7.5 C217, A217: MAGIC SKY CONTROL control unit
483 5 Reversible front right emergency tension retractor
484 7.5 Right rear seat control module  
Left rear seat control module
485 5 Active Belt Buckle Control Module
486 10 Hybrid: battery management system control unit, power electronics control unit
487 5 Electric parking brake control unit
488 5 Rear SAM unit
489 5 Long Range Front Radar Sensor
490 5 Pneumatic pump with multi-circuit seat
491 40 Trunk lid control unit
492 40 Reversible front right emergency tension retractor
493 - Reserve
494 40 Rear SAM unit
495 40 Heated rear window
496 40 Reversible front left emergency pull retractor

In the passenger compartment

The location of the main fuse box in the passenger compartment
The main mounting block is located in the front passenger's footwell.


Photo is an example.

Diagram
No. A Description
1   Connection of circuit 30 "E1"
2   Circuit connection 30g "E2"
301 5 Mirror taximeter
302 30 Front right door control unit
303 30 W222: Rear left door control unit
C217, A217: Rear control unit
304 30 W222: Rear right door control unit
C217, A217: Rear control unit
305 30 Driver's seat control unit
306 30 Front passenger seat control unit
307 20 W222: Intelligent servo module for DIRECT SELECT
307 30 C217, A217: Driver's seat heater control unit.
308 30 Front passenger seat heater control unit
309 5 Emergency call control unit
Telematic services communication module
HERMES block
310 25 Stationary heater control unit
311 10 Rear fan motor
312 10 Roof control panel control unit
313 10 Hybrid and Hybrid Plus: power electronics control unit
314 7.5 A217: Anti-theft alarm (designation by agreement)
315 10 Transmission control unit
Valid for gasoline engines: Block ME-SFI
Valid for engines 642, 651: CDI block
316 - Spare
317 30 W222: Control unit for panoramic sliding sunroof
C217, A217: MAGIC SKY CONTROL control unit
318 15 Audio / display COMAND
319 30 Panoramic sliding sunroof control unit
C217, A217: Panoramic sunroof control unit
320 15 Active Body Control control unit AIRmatic control unit (valid not for Active Body Control)
321 20 C217, A217: Intelligent servo module for DIRECT SELECT
322 15 COMAND block
323 7.5 Additional restraint system control unit
MF1 / 1 7.5 Japan version: dedicated short-range communication system control unit
MF1 / 2 7.5 Multifunctional monaural camera
Multifunctional stereo camera
MF1 / 3 7.5 Rain / light sensor with additional functions
Overhead control panel control unit
MF1 / 4 7.5 Driver's seat control unit
MF1 / 5 7.5 Front passenger seat control unit
MF1 / 6 7.5 Steering column tube module control unit
MF2 / 1 5 Perfume Atomizer Generator
MF2 / 2 5 Audio control panel / COMAND
Touchpad
MF2 / 3 5 Electronic stability control unit
MF2 / 4 5 Head-up display
MF2 / 5 5 Hybrid and Hybrid Plus: Electric Refrigerant Compressor
MF2 / 6 - Reserve
MF3 / 1 5 Front SAM unit
MF3 / 2 5 Radar sensor control unit
MF3 / 3 5 Fan motor COMAND
MF3 / 4 5 A group of buttons on the instrument panel from the driver's side  
Group of buttons of the central instrument panel
MF3 / 5 5 Rear air conditioner control unit
MF3 / 6 5 from 01.06.2016: Antenna switch for telephone and stationary heater

Location of the additional fuse box in the passenger compartment
An additional fuse box is located on the driver's side at the end of the dashboard.

Diagram
No. A Description
D - Relay MAGIC VISION CONTROL
E - Reserve
F - Relay circuit 15R
200 40 Front SAM module
201 40
202 5 Alarm siren
203 30 W222: Driver's seat heater control unit.
204 5 Diagnostic connector
205 7.5 Electronic ignition switch control unit
206 5 Analog clock
207 20 Climate control
208 7.5 Instrument cluster
209 5 Front climate control
210 10 Steering column tube module control unit
211 - Reserve
212 -
213 25 Electronic stabilization system module
214 - Reserve
215 -
216 -
217 5 Japanese version: special short-range communication system control unit
218 5 Additional restraint system control unit
219 5 Weight Measurement System (WSS)
Front passenger seat occupied recognition and ACSR

In the engine compartment

Location of the fuse box in the engine compartment of the car
The engine fuse box is located on the left side of the engine compartment. To access it, you need to remove the decorative trims, disconnect the wiring harnesses and remove the protective cover.


General form.

Diagram
No. Relay modules
H Engine compartment 15 chains
G Starter chains 50
I Vacuum brake pump
J Hybrid: HYBRID relay
K Transmission oil pump
L Horn
M Wiper parking position heater relay
N Chains 87M
O Except hybrid: starter circuit 15 relay
P Secondary air injection
Q Hybrid: vacuum pump relay
R AIRmatic relay
No. Purpose of fuses A
100 Hybrid: vacuum pump 40
101 Coupling, circuit 87/2 15
102 Coupling, circuit 87/2 20
103 Chain coupling 87M4 15
104 Chain coupling 87M3 15
105 For gearbox 722.9: Transmission oil auxiliary pump control unit 15
106 Heated wiper parking position 25
107 Engine 277, 279: Starter / air pump electrical connection 60
108 Only with SAE dynamic LED headlight for right-hand traffic or dynamic LED headlight: front left lamp unit, front right lamp unit. 20
Only without SAE dynamic LED headlight for right-hand traffic or dynamic LED headlight. :: Front right lamp unit
109 Wiper motor 30
110 Only without LED headlight with SAE code for right-hand traffic or dynamic LED headlight: front left light, right front light. 20
Only without SAE dynamic LED headlight for right-hand traffic or dynamic LED headlight. :: Front left lamp unit
111 Starter 30
112 Engine fuse and relay module 5
113 Spare -
114 AIRmatic compressor 40
115 Left horn 15
Right horn
116 Hybrid: vacuum pump relay 5
117 Reserve -
118 Hybrid: Electronic Stability Control Unit 5
119 Chain Coupling 87 / C2 15
120 Chain Coupling 87 / C1 7.5
121 Electronic stability control unit 5
122 Hybrid: HYBRID relay 5
123 Night View Assist control unit 5
124 Hybrid: electrical connector for vehicle interior and engine compartment 5
125 Front SAM unit 5
126 Transmission control unit 5
Diesel: CDI control unit
Petrol: Control unit ME-SFI [ME]
127 Reserve -
128 Outdoor light switch 5
129A Hybrid: 50 starter circuit relay 30
129B except hybrid: starter circuit relay 50 30


The power block, consisting of high-power fuse-links, is located on the right.


General form.

Arrangement of elements in the power block
No. A Appointment
1   circuit 30 "B1"
2   chain 30 momentary "B2"
M3 500 Hybrid: electric car
M3 500 Rome Hybrid: Generator
M1 - Hybrid: electric car
M1 - except Hybrid: Starter
MR5 100 Electric power steering unit
MR2 100 Fan motor
M4 100 Hybrid: fully integrated transmission control unit
I1 - Reserve
M2 150 Diesel: glow plugs
MR1 60 Engine fuse and relay module
MR3 - Reserve
MR4 150 Engine 277, 279: Fan motor
I2 - Reserve
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