Page 3 of 20
Symbols
..................................................... 2Fu
se/relay assignment diag ram ............. 3
No tes on fuses ............................................ 3
Fu ses/rela ysinthe front-passen ger
fo ot we ll ........................................................ 3
Fu ses on the outside of the driver's
seat base ..................................................... 7
Fu ses/rela ysinthe base of the driv‐
er's seat and in the battery box ...................9 Index
......................................................... 13 Con
tents 1
Page 5 of 20
Note
s on fuses &
WARNING Risk of accident and inju ry
due toove rloaded lines
If yo u manipulate or bridge a faulty fuse or if
yo ure place it with a fuse with a higher
amperage, the electric line could be overloa‐
ded.
This could result in a fire. #
Alwaysre place faulty fuses with speci‐
fi ed new fuses containing the cor rect
amperage. *
NO
TEDama geor malfunctions caused by
moisture Moisture may cause dama
getothe electrical
sy stem or cause it tomalfunction. #
When the fuse box is open, make sure
th at no moisture can enter the fuse box. #
When closing the fuse box, make sure
th at the seal of the lid is positioned cor‐
re ctly on the fuse box. Yo
u can find fur ther information on fuses in the
ve hicle Operating Instructions. Fu
ses/rela ysinthe front-passenger foot we ll Fu
se assignment No
.C onsumer Fuse
ra t–
ing
MF1
15 -1 Engine control uni t5A
15 -1 Common Powe rtra in Module
(CPC) 5 A
15 -1
ESP®
control unit 5 A
15 -1 All-wheel drive control uni t5A
15 -1 Retard er 5 A No
.C onsumer Fuse
ra t–
ing
15 -1 Air suspensio n5 A
MF2
15 -2 Feedback cable, term inal 15
re lay 5 A
15 -2 Headlamp range control, hal‐
ogen headlamp 5 A
15 -2 Tach ograph TCO5 A Fu
se/relay assignment diagram 3
Page 6 of 20
No
.C onsumer Fuse
ra t–
ing
15 -2 Active Brake Assi stradar
sensor 5 A
15 -2 Deactivation of reve rse
wa rning device, po werta ke-
off, working speed control 5 A
15 -2 DIN slot connection 5 A
MF3
30- TM ultifunction camera 7.5 A
30- TT achog raph TCO7 .5 A
30- TD IN slot connection, roof 7.5 A
30- TT erminal 15, under voltage
re lay 7.
5 A
30- TI nstrument clu ster 7.5 A
30- TC entral oil pum p7 .5 A
S9
1U nassigned
2C ommonPowe rtra in Module
(CPC) 10 A
3E ngine control unit OM642/
OM651/M2 74 10 A
4D IN slot, cockpit 7.5 A
5C ommonPowe rtra in Module
(CPC) 10 A
6R adiatorfan (not for OM654) 5 A
S10
7A utomatic transmission 30 A
8B ody contro ller 30 A
9B ody contro ller 30 A
10 Heating, SCR catalytic con‐
verter 30 A
11 Overhead control panel
(sta nda rd) 10 A
Overhead control panel, Cab
Chassis 10 A No
.C onsumer Fuse
ra t–
ing
Overhead control panel
(high) 15 A
12 Pump, SCR catalytic con‐
verter 15 A
S11
13 Automatic transmission NAT
3 60 A
S12
14 ESP®
va lves (Premium), vehi‐
cles with electric parking
brake 40 A
ESP ®
va lves (S tanda rd) 25 A
S13
16 ESP®
pu mp 60 A
S14
17 Body controller 30 A
18 Body controller 30 A
19 D+, body manufactu rer1 0 A
20 Co-driver's door control unit 25 A
21 Driver's door control uni t25 A
22 Air suspension (LFA) control unit 10 A
S15
23 Blo wer control unit 25 A
24 USBcharging soc ket (co ck‐
pit), USB charging soc ket
(s to wa ge compa rtment),
11 5/230V con verter soc ket 7.
5 A
25 Cigar ette lighter soc ket, cen‐
te r console 15 A
26 Information panel soc ket1 5 A
27 Converter soc ket,
11 5 V/230 V 25 A4
Fuse/relay assignment diagram
Page 7 of 20
No
.C onsumer Fuse
ra t–
ing
28 Radio pre-ins tallation, cargo
liftgate, voltage con verter
antenna, 115/230V con‐
ve rter soc ketfo rve hicles
with auxiliary battery 7.
5 A
S16
30-1 Unassigned
30-2 Unassigned
30-3 Central locking 5 A
30-4 Anti-theft ala rmsystem
(A TA ) 5 A
30-5 Unassigned
30-6 Electronic ignition lock con‐ trol unit 10 A
31 Actuation, term inal 15-II
re lay 25 A
S17
32 Unassigned
S18
33 Voltage dip sensor (SEB) 5 A
S19
34 Electrics for body interior
lighting 10 A
S1
35 Advanced Ca rava ning Unit
(ACU) 7.
5 A
S2
36 Air conditioning control panel 5 A
37 ElectricSteering Wheel
Locking (ESTL) 5 A
38 Steering Column Switch
Module (SCSM) 10 A
39 Radio antenna, navigation
sy stem, two-w ayradio 10 A No
.C onsumer Fuse
ra t–
ing
40 Rotating beaco n5 A
41 Radio multimedia sy stem
(C5/NTG6)/radio pre-ins tal‐
lation 25 A
S3
42 Unassigned
S4
43 Unassigned
S5
44 Multimedia sy stem cont rol
panel 5 A
45 Charger brac ket,Wi reless
Mobile Inter face (WMI) 5 A
46 Multimedia connection unit (MMI) 7.
5 A
47 Hermes (UMTS/LTE commu‐
nication module) 5 A
48 Teles tart stationary heating 5 A
49 Cent ral displa y5 A
S6
50 Additional headlamp, left
(platform body manufac‐
turer) 5 A
51 Auxilia ryheadlamp ,ri ght
(platform body manufac‐
turer) 5 A
52 Control unit, airbag 7.5 A
53 Diagno stics 5 A
54 Relay suppl y5 A
55 TSengine (diesel), engine
cont rol unit (OM651) 7.
5 A
S7
57 Soot particulate sensor, NO
X
sensor 15 A Fu
se/relay assignment diagram 5
Page 8 of 20
No
.C onsumer Fuse
ra t–
ing
Soot pa rticulate sensor (not
fo r OM654) 10 A
58 Engine, exhaust gasre circu‐
lation (EGR) (OM 642/
OM651) 10 A
Engine (not for OM654) 15 A
59 NO Xsensor before/af
ter
catalytic con verter (not for
OM654) 10 A
60 Lambda sensor 7.5 A
61 M274engine 10 A
Engine (OM 642/OM651) 7.5 A
H2
62 Engine control unit (not for
OM654) 15 A No
.C onsumer Fuse
ra t–
ing
Engine control uni t20 A
63 Engine (M2 74)2 0 A
Engine (not for OM654) 25 A
S8
64 Body controller 30 A
65 Body controller 30 A
66 Roofventilator 15 A
67 Control unit for fuel meas‐
urement (FSCM) 25 A
68 LED headlamp, right 15 A
69 LED headla mp, lef t1 5 A
H2
70 Windshield wipe rs 30 A Re
lays inthe front-passenger foot we ll 6
Fuse/relay assignment diagram
Page 9 of 20
No
.D esignation Perm is‐
sible
cur rent
inten‐
sity
R1 Reser ve 30 A
R2 Term inal 87, engin e5 0 A
R3 Term inal 87, Common Pow‐
ertrain Module CPC 30 A
R4 Term inal 15-I 40 A
R5 Windshield wipe rson/of f4 0 A
R6 Reser ve 40 A
R7 Windshield wipe rsfast/
slow 40 A No
.D esignation Perm is‐
sible
cur rent
inten‐
sity
R8 Term inal 50, star ter4 0 A
R9 Term inal 15R (vehicles
without additional bat tery) 50 A
R1 0T erminal 15-II 30 A
R1 1T erminal 15R (vehicles with
additional bat tery) 50 A Fu
ses on the outside of the driver's seat base Fu
se assignment Fu
se block F55/1 No
.C onsumer Fuse
ra t–
ing
1A dditional turn signal lam p10 A
2R ear window wiper, right 15 A No
.C onsumer Fuse
ra t–
ing
3A ll-wheel driv e3 0 A
4T erminalstrip fo r electrical
connection (body manufac‐
turer) 25 A Fu
se/relay assignment diagram 7
Page 10 of 20
No
.C onsumer Fuse
ra t–
ing
5D rive r's seat adjustment con‐
trol unit 25 A
Driver's seat heating control
unit
6D rive r lumbar suppor t10 A
Co-driver's lumbar support
7C o-driver's seat adjustment
contro l unit 25 A
Co-driver's seat heating con‐
trol unit (double jump seat)
8T ire pressure monitor 5 A
Motion de tector and tire
pressure monitoring sy stem
9P arking Assis t5 A
Re ar view camera (R VC) Fu
se block F55/2 No
.C onsumer Fuse
ra t–
ing
10 Trailer coupling, right (trailer
soc ket) 25 A
11 Trailer coupling control unit 15 A
12 Trailer coupling, left (trailer
soc ket) 25 A
13 Trailer coupling control unit 15 A
14 Multi Purpose Module (MPM)
(body manufacturer inter‐
face) 25 A
15 Multi Purpose Module (MPM)
(body manufacturer inter‐
face) 25 A
16 Rear compartment blo wer2 5 A
17 Auxilia ryheating (water heat‐
ing) 20 A
18 Automatic transmission, aux‐
iliary oil pump 15 A Fu
se block F55/3 No
.C onsumer Fuse
ra t–
ing
19 Auxilia ryheating
Te rm inal 15on auxiliary bat‐
te ry 15 A
20 Auxilia rybattery voltage
measurement 5 A
21 Rear wind owheater, lef t1 5 A
22 Rear wind owheater, right 15 A
23 Cargo liftgate/du mpervehi‐
cle (pre-ins tallation) 7.
5 A
24 Term inal strip fo r electrical
connection (body manufac‐
turer) 15 A
25 Roofventilator relay5A
26 Special signal, cockpit body manufacturer 7.
5 A
27 Rear wind owheater 30 A Fu
se block F55/4 No
.C onsumer Fuse
ra t–
ing
28 Sliding doo r,lef t1 5 A
Electric sliding door, lef t30 A
29 Sliding door, right 15 A
Electric sliding door, right 30 A
30 Antenna switch bo x5A
31 Automatic transmission 7.5 A
32 Automatic transmission 10 A
33 Brake boos ter3 0 A
34 Siren relay
Pre-in stallation for camper
van 15 A
30 A8
Fuse/relay assignment diagram
Page 11 of 20
No
.C onsumer Fuse
ra t–
ing
35 Rotating beacon wi thsiren
Pre-ins tallation for camper
van 15 A
30 A
36 Pre-ins tallation for camper
van 30 AFu
se block F55/5 No
.C onsumer Fuse
ra t–
ing
37 Electrical step, lef t1 0 A
38 Electrical step, right 10 A
39 Warning buzzer, elect rical
st ep, left/right 5 A
40 Automatic transmission
(N AT 2) 10 A
41 Term inal 15, special signal,
cockpit body manufacturer 5 A
42 Rear view camera (R VC)
Inside rearview mir ror (rear
view camera display) 5 A
43 Soc ket, cab 15 A No
.C onsumer Fuse
ra t–
ing
44 Socket, D-pillar, le ft 15 A
45 Soc ket, D-pillar, right 15 A Fu
se block F55/6 No
.C onsumer Fuse
ra t–
ing
51 USB port, wiper, front lef t7.5 A
USB port, wiper, front le ft
(with sliding door, left) 5 A
52 USB port, wiper, front right 7.5 A
USB port, wiper, front right
(with sliding door, right) 5 A Fu
ses/rela ysinthe base of the driver's seat
and in the bat tery box Fu
se assignment Ad
ditional fuses/rela ysare located in the seat
base of the driver's seat:
R forth e windshield heater
R forot her vehicle components, such as po wer-
st eering pumps, auxiliary batter y,battery cut‐
off relays and PTC heater boos ters Fu
se/relay assignment diagram 9
