Page 8 of 18
No. Consumer Fuse
rating Passenger-
compartment
illumination (reading
lamps or LED light strip) 7.5 A
Convenience lighting 10 A
Reading and load-
compartment lights
(courie
rvehicles) 10 A
18 Rear-compartment air-
conditioning system 7.5 A
Pre-fuse box in the battery compartment in the
footwell on the left-hand side of the vehicle F59
No. Consumer Fuse
rating 1 Preglow relay
Secondary air pump 80 A
40 A
2 Air-conditioning system
cooling fan, cab 60 A
Cab 40 A
3 SAM (signal acquisition
and actuation module)/
SRB (fuse and relay
module) 80 A
4 Auxiliary battery/
retarder
Rear-compartment air-
conditioning system 150 A
80 A No. Consumer Fuse
rating 5 Terminal 30 pre-fuse
boxes, SAM (signal
acquisition and
actuation module)/SRB
(fuse and relay module) 150 A
6 Connection point on the
base of the seat Bridge
7 Passenger compartment
air-conditioning system 80 A
PTC heater booster 150 A6
Fuses supplement
Page 11 of 18

Fuse block F55/4
No. Consumer Fuse
rating 10 Terminal 30, body/
equipment
manufacturer 25 A
11 Terminal 15, body/
equipment
manufacturer 15 A
12 D+, body/equipment
manufacturer 10 A
13 Fuel pump (FSCM)
Fuel pump relay 20 A
15 A
14 Trailer power socket 20 A
15 Trailer recognitio
nunit 25 A
16 Tire pressure monitor/
PARKTRONIC 7.5 A
17 PSM control unit 25 A
18 PSM control unit 25 A
Fuse block F55/5
No. Consumer Fuse
rating 19 Overhead control panel
withou
tATA and without
rain sensor 5 A
Overhead control panel
with ATA 25 A
Overhead control panel
with rain sensor 25 A
20 License plate lamp
(courier vehicles)/
perimeter lamp/
entrance lighting (bus) 7.5 A No. Consumer Fuse
rating 21 Terminal 30, body
electrics (courier
vehicles) 15 A
Rear window defroster
without ATA 30 A
Rear window defroster
with ATA 15 A
22 Electrical step, co-
driver's door (bus) 10 A
Rear window defroster 2 15 A
Vehicle socket (courier
vehicles) 20 A
23 Electric system: non-MB
body
12 V left rear socket,
load/ passenger
compartment 10 A
15 A
24 12 V socket under the
base of driver's seat 15 A
25 12 V socket rear right,
cargo compartment/
passenger compartment 15 A
26 Hot-water auxiliary
heating 25 A
27 Auxiliary warm-air heater
Heater booster system 20 A
25 AFuses supplement
9 Z
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
Page 13 of 18
Fuses in the seat base of the left front
seat
There are additional fuses in the seat base,
for example:
R for the passenger compartment or rear
compartment air conditioning
R for the windshield heating
R for other vehicle assemblies, such as the
power-steering pump, auxiliary battery and
PTC heater
R from the body manufacturers for retarders,
loading tailgates, hydraulic pump and
tippers
Always have the fuses in the seat base
replaced at a qualified specialist workshop. Fuses supplement
11 Z