Page 6 of 18
Configuration
Fuses
The F87 fuse (30 A) for th
eDC/D Cconverter
is under the SRB fuse and relay module in the
main fuse box. Have this fuse changed at a
qualified specialist workshop only.
SRB fuse and relay module No. Consumer Fuse
rating 1 Horn 15 A
2 ESTL (electric steering
lock) ignition lock 25 A
3 Terminal 30 Z, vehicles
with a gasoline engine/
ignition lock/instrument
cluster 10 A
4 Light switch/switch unit
on center console 5 A
5 Windshield wipers 30 A
6 Terminal 87/5 10 A
7 MRM (jacket tube
module) 5 A No. Consumer Fuse
rating 8 Terminal 87 (2) 20 A
9 Terminal 87 (1) 25 A
10 Terminal 87 (4) 10 A
11 Terminal 15 R vehicle 15 A
12 Air bag control unit 10 A
13 Cigarette lighter/glove
box lamp/radio/body
manufacturer loading
tailgate/personal
navigation device (PND)
power socket 15 A
14 Diagnostics
connection/light
switch/instrument
cluster/deactivating
reverse warning device/
anti-theft protection with
vehicle tracking 5 A4
Fuses supplement
Page 7 of 18

No. Consumer Fuse
rating 15 Headlamp range
control/front-
compartment heating 5 A
16 Terminal 87 (3) 10 A
17 Air bag control unit 10 A
18 Terminal 15 vehicle/
brake light switch 7.5 A
19 Interio
rlighting 7.5 A
20 Co-driver's door power
window switch/terminal
30/2 SAM (signal
acquisition and
actuation module) 25 A
21 Engine control unit 5 A
22 Brake system (ABS) 5 A
23 Terminal 87 (6), starter 10 A
24 Diesel engine, engine
components/control
unit, vehicles with a
natural gas engine NGT
1 10 A
25 12 V socket in the center
console 25 A
Fuse block F55/1
No. Consumer Fuse
rating 1 Driver's door control unit 25 A
2 Diagnostics connection 10 A
3 Brake system (valves) 25 A
4 Brake system (delivery
pump) 40 A
5 Terminal 87 (2a), engine 10 A
6 Terminal 87 (1a), engine 10 A No. Consumer Fuse
rating 7 Headlamp cleaning
system 30 A
8 Anti-theft alarm system
(ATA)/beacon/beacon
with siren 15 A
9 Additional tur
nsignal
module 10 A
Fuse block F55/2
No. Consumer Fuse
rating 10 Radio
Radio NTG 2.5 15 A
20 A
11 Mobile phone/
tachograph/additional
recorder 7.5 A
12 Blower, front/auxiliary
heating blower setting 1 30 A
13 Auxiliary heating system
digital timer, radio
receiver/DIN slot basic
wiring/FleetBoard/anti-
theft protection with
vehicle tracking 7.5 A
14 Seat heating 30 A
15 Brake system control
unit 5 A
16 Heating, rear
compartment heating/
air conditioning, front/
CD changer 10 A
17 Motion detector 7.5 A
1
Natural Gas Technology. Fuses supplement
5 Z
Page 9 of 18
Relays in the main fuse box
No. Relays Description
R1 K40/9 Horn relay
R2 K40/9 Windshield wiper setting 1/2 relay
R3 K40/9 Starter relay, terminal 15
R4 K40/9 Windshield wipers on/off relay
R5 K40/9 Starter relay, terminal 50
R6 K40/9 Relay, terminal 15 R (normally ope
ncontact) R7 K40/9 Engine control unit relay, terminal 87
R8 K40/9 Relay, terminal 15 (reinforced relay)
Fuse box under the left front seat
Fuse box on the outside of the seat base X
To open: move the front seat to the highest
position.
X Press both latching springs 0001down and
remove the cover.
X To close: attach the bottom edge of the
cover and fold upwards.
The cover must engage. Fuses supplement
7 Z
Page 10 of 18
Configuration
Fuses
Fuse block F55/3
No. Consumer Fuse
rating 1 Mirror setting/rear
window defroster 5 A
2 Rear window wiper 30 A
3 Auxiliary heating, digital
timer/rear view
camera/neutral gate
switch, starting-off aid
and all-wheel drive/
engine run-on/DIN slot
basic wiring (roof)/
FleetBoard/anti-theft
protection with vehicle
tracking/emergency
hammer lighting in
passenger compartment 5 A
4 Tachograph/ADR
working speed
governor/power take-
off/AAG (trailer control
unit) 7.5 A No. Consumer Fuse
rating 5 ECO Start/control unit
EGS (electronic gearbox
control) 5 A
10 A 6 All-wheel drive control
unit 5 A
7 ESM (electronic selector
module) 10 A
8 Loading tailgate/tipper
vehicle 10 A
9 Passenger-
compartment air
conditioning,
compresso
rclutch 7.5 A8
Fuses supplement
Page 12 of 18

Fuse block F55/6
No. Consumer Fuse
rating 28 Starter auxiliary battery/
starte
rrelay power
supply 25 A
29 Terminal 87 (7), gas
system, vehicles with a
natural gas engine
(NGT) 1 7.5 A
SCR
2
control unit,
vehicles with exhaust
gas aftertreatment 10 A
Terminal 30, all-wheel
drive, control unit 30 A
30 Auxiliary heat exchanger
fan 15 A
Brake booster 30 A
31 Sliding door closing
assistance, left 15 A
Electric sliding door, left 30 A
Rear compartment
heating blower 30 A
32
SCR
2
relay supply,
vehicles with exhaust
gas aftertreatment 5 A
KEYLESS ENTRY 10 A
33 Sliding door closing
assistance, right 15 A
Electric sliding door,
right 30 A
Level control (ENR)
control unit 30 A
Compressor air
suspension 30 A No. Consumer Fuse
rating 34
SCR
2
heater 3 DEF
supply reservoir,
vehicles with exhaust
gas aftertreatment 15 A
35
SCR
2
heater 2hose,
vehicles with exhaust
gas aftertreatment 15 A
36
SCR
2
heater 1delivery
pump, vehicles with
exhaust gas
aftertreatment 10 A
Fuse block F55/7
No. Consumer Fuse
rating 37 Unassigned —
38 Unassigned —
39 Body electrics (courier
vehicles) 7.5 A
Passenger compartment
air-conditioning system 7.5 A
Roof ventilator 15 A
Siren 15 A
40 Unassigned —
41 Unassigned —
42 Rear-compartment air-
conditioning system 30 A
43 Electrical step, sliding
door, right 10 A
44 Electrical step, sliding
door, left 10 A
45 Electrical step, control
system 5 A
1
Natural Gas Technology.
2 Selective Catalytic Reduction. 10
Fuses supplement