2015 MERCEDES-BENZ SPRINTER relay

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
K40/9
Fuel pump relay
5
Starter relay, terminal 15 1R4 K40/9 Windshield wipers on/off relay
R5 K40/9 Starter relay, terminal 50
R6 K40/9 Relay, terminal 15 R (normally open contact)
R7 K40/9 Engine control unit relay, terminal 87
R8 K40/9 Relay, terminal 15 (reinforced relay)
5
Not on vehicles with code MI6/MH3/XM0.
1 Vehicles with code MI6/MH3/XM0. Fuses and relays
9 Z

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 0043down and
remove the cover.
X To close: attach the bottom edge of the
cover and fold upwards.
The cover must engage. 10
Fuses and relays

Configuration
Fuses
Fuse block F55/3
No. Consumer Fuse
rating 1 Mirror setting/rear win-
dow defroster 5 A
2 Rear window wiper 30 A
3 Auxiliary heating, digital
timer/rear view cam-
era/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/emer-
gency hammer lighting in
the rear compartment 5 A
4 Tachograph/ADR work-
ing speed governor/
power take-off/AAG
(trailer control unit) 7.5 A
5 ECO Start/control unit 5 A No. Consumer Fuse
rating EGS (electronic gearbox
control) 10 A
6 All-wheel drive control
unit 5 A
Auxiliary oil pump 10 A
7 ESM (electronic selector
module) 10 A
8 Loading tailgate/tipper
vehicle
PARKTRONIC
6 10 A
9 Rear compartment air
conditioning, compres-
sor clutch, disengagea-
ble reverse warning
device 7.5 A
6
Vehicles with code XM0. Fuses and relays
11 Z

Fuse block F55/4
No. Consumer Fuse
rating 10 Terminal 30, body/
equipment manufac-
turer 25 A
11 Terminal 15, body/
equipment manufac-
turer 15 A
12 D+, body/equipment
manufacturer 10 A
13 Fuel pump FSCM (Fuel
Sensing Control Module) 20 A
Fuel pump relay
1, 3 15 A
14 Trailer power socket 20 A
15 Trailer recognition unit 25 A
16 Tire pressure monitor
PARKTRONIC
7 7.5 A
17 Programmable special
module (PSM) 25 A
18 Programmable special
module (PSM) 25 A
Fuse block F55/5
No. Consumer Fuse
rating 19 Overhead control panel
without ATA (Anti-Theft
Alarm system) and with-
out rain sensor 5 A
Overhead control panel
with ATA (Anti-Theft
Alarm system) 25 A No. Consumer Fuse
rating Overhead control panel
with rain sensor 25 A
20 License plate lamp (cou-
rier vehicles)/perimeter
lamp
3
/identification
lighting 3 7.5 A
21 Terminal 30, body elec-
trics (courier vehicles) 15 A
Rear window defroster
without ATA (Anti-Theft
Alarm system) 30 A
Rear window defroster
with ATA (Anti-Theft
Alarm system) 15 A
22 Rear window defroster 2 15 A
Vehicle socket (courier
vehicles) 20 A
23 12 V left rear socket,
load/rear compartment 15 A
Electric system: non-MB
body 10 A
24 12 V socket under the
base of driver's seat 15 A
25 12 V right rear socket,
load/rear compartment 15 A
26 Hot-water auxiliary heat-
ing 25 A
27 Electrical heater booster
(PTC) 25 A
Auxiliary warm-air heater 20 A
1
Vehicles with code MI6/MH3/XM0.
3 NAFTA
7 Pre-facelift vehicle. 12
Fuses and relays

Fuse block F55/6
No. Consumer Fuse
rating 28 SRB starter relay (fuse
and relay module)
3, 6
Starter for electrical sup- ply support using the
additional battery 25 A
29 Terminal 87 (7), gas sys-
tem, vehicles with a nat-
ural gas engine (NGT)
2 7.5 A
SCR
8
control unit, vehi-
cles with exhaust gas
aftertreatment 3 10 A
Terminal 30, all-wheel
drive, control unit 30 A
30 Auxiliary heat exchanger
fan 15 A
Brake booster
3 30 A
31 Rear compartment heat-
ing blower 30 A
Sliding door closing
assistance, left 15 A
Electric sliding door, left 30 A
32
SCR
8
relay supply, vehi-
cles with exhaust gas
aftertreatment 5 A
KEYLESS ENTRY 10 A
33 Electric sliding door,
right 30 A
Sliding door closing
assistance, right 15 A No. Consumer Fuse
rating ENR (level control) con-
trol unit 30 A
Compressor air suspen-
sion 30 A
34
SCR
8
heater 3 DEF (Die-
sel Exhaust Fluid) supply reservoir, vehicles with
exhaust gas aftertreat-
ment, 6 cyl. diesel 9, 3 15 A
SCR
8
heater 1 DEF ®
,
vehicles with exhaust
gas aftertreatment die-
sel 10 20 A
35
SCR
8
heater 2 hose,
vehicles with exhaust
gas aftertreatment, 6
cyl. diesel 9, 3 15 A
SCR
8
heater 2 DEF, vehi-
cles with exhaust gas
aftertreatment diesel 10 25 A
36
SCR
8
heater 1 delivery
pump, vehicles with
exhaust gas aftertreat-
ment, 6 cyl. diesel 9, 3 10 A
SCR
8
heater control 3
DEF, vehicles with
exhaust gas aftertreat-
ment diesel 10 15 A
3
NAFTA
6 Vehicles with code XM0.
2 Natural Gas Technology.
8 Selective Catalytic Reduction.
9 Vehicles with code MH3.
10 Not for vehicles with code MH3. Fuses and relays
13 Z

Fuse block F55/7
No. Consumer Fuse
rating 37 COLLISION PREVEN-
TION ASSIST/FCW
(Forward Collision Warn-
ing) 5 A
Blind Spot Assist/BSM
(Blind Spot Monitor) 5 A
38 Multifunction camera
with Highbeam Assist 10 A
With a warning when
leaving a lane 10 A
39 Body electrics (courier
vehicles) 7.5 A
Rear-compartment air-
conditioning system 7.5 A
Roof ventilator 15 A
Siren 15 A
40 Auxiliary battery charge
current
11 15 A
41 SAM (signal acquisition
and actuation module)
auxiliary battery refer-
ence voltage
11 7.5 A
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 and warning buz-
zer 5 A Fuses in the seat base of the left front
seat
There are additional fuses in the seat base, for
example:
R for the rear-compartment air conditioning
R for the windshield heating
R for other vehicle components, such as
power steering pumps, auxiliary batteries,
battery cutoff relays and PTC heater boos-
ters
R from the body manufacturers for retarders,
loading tailgates, hydraulic pump and tip-
pers
Always have the fuses in the seat base
replaced at a qualified specialist workshop.
11 Vehicles with auxiliary battery. 14
Fuses and relays

Relays in the seat base of the left front seat
No. Relays Description
R1 K6
Starter relay, right-hand drive
6R2 K41 Load relief relay, terminal 15
R3 K41/5 Starter relay, terminal 15
R4 K64
K110 Secondary air injection/secondary air pump relay
SCR relay
8
, vehicles with exhaust gas aftertreatment R5 K27 Fuel pump relay
R6 K23/1 Blower relay, front, blower setting 1
R7 K41/2 Load relief relay, terminal 15 R
R8 K6/1 Starter relay, additional battery
K6
Starter relay, left-hand drive
6R9 K13/5 Rear window defroster relay 1
R10 K13/6 Rear window defroster relay 2 with ATA (Anti-Theft
Alarm system)
K51/15 Snow plow relay, low-beam headlamps, left
R11 K117/3 Electrical step relay 1, left
K51/16 Snow plow relay, low-beam headlamps, right
R12 K117/4 Electrical step relay 2, left
6
Vehicles with code XM0.
8 Selective Catalytic Reduction. Fuses and relays
15 Z

No. Relays Description
K51/17 Snow plow relay, high-beam headlamps, left
R13 K41/3 Load relief relay, terminal 15 (2)
K51/18 Snow plow relay, high-beam headlamps, right
R14 K13/7 Windshield heating relay 1
R15 K88 Body manufacturer relay, terminal 15
R16 K88/1 Body manufacturer relay, terminal 61 (D+)
R17 K95
K93 Loading tailgate basic wiring relay
Comfort illumination relay
R18 K2 Headlamp cleaning system relay
R19 K51/10 Beacon with siren relay
R20 K39/3 ATA (anti-theft alarm system) relay, horn
R21 K108
K116
K23/2
Perimeter/identification lighting relay
3
License plate lamp relay (courier vehicles)
Blower relay, hot-air auxiliary heating, blower setting
1 R22 K23/3 Blower relay, hot-air auxiliary heating, blower setting
2 R23 K39/1 Siren relay
K124/1 Terminal 61 (D+) relay, anti-theft protection with
vehicle tracking R24 K117/1 Electrical step relay 1, right
R25 K117/2 Electrical step relay 2, right
R26 K121 Reverse warning device off relay
K124 Anti-theft protection with vehicle tracking relay
Other relays
No. Relays Description
— K57 Battery cutoff relay, left-hand-drive vehicle
— K57/4 Battery cutoff relay, right-hand-drive vehicle
— K9 Air-conditioning system relay, auxiliary fan (duo)
3
NAFTA 16
Fuses and relays