2021-2026 Seat Leon 4 Door Emergencies -> Fuses and bulbs User Manual
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Emergencies -> Fuses and bulbs for Your Seat Leon 4 Door Fourth Generation (2021-2026)

Emergencies  
Fuses inside the vehicle  
perage (same colour and markings) and  
size.  
Fuses and bulbs  
Never replace a fuse by a metal strip, sta-  
Fuses  
ple or similar.  
Introduction  
CAUTION  
To prevent damage to the vehicle’s elec-  
In general, a fuse can be assigned to various  
electrical components. Likewise, an electrical  
component can be protected by several  
fuses.  
trical system, before replacing a fuse al-  
ways turn off the ignition, the lights and all  
electrical elements.  
Protect the fuse boxes when open to pre-  
Only replace fuses when the cause of the  
problem has been solved. If a newly inserted  
fuse blows after a short time, you must have  
the electrical system checked by a special-  
ised workshop as soon as possible.  
vent the entry of dust or humidity as they  
can damage the electrical system.  
Fig. 55 On the driver's side dashboard: fuse  
box cover.  
Opening and closing the fuse box situated  
below the dash panel  
Note  
One component may have more than one  
Open: fold the cover down Fig. 55.  
›››  
WARNING  
fuse.  
Close: push back the cover it in until it clicks  
The high voltages in the electrical system  
can give serious electrical shocks, causing  
burns and even death!  
Several components may run on a single  
into place.  
fuse.  
In the vehicle, there are more fuses than  
Identifying fuses below the dashboard by  
colours  
Never touch the electrical wiring of the  
those indicated in this chapter.  
ignition system.  
Take care not to cause short circuits in  
Colour  
Light brown  
Brown  
Amp rating  
the electrical system.  
5
WARNING  
7.5  
10  
15  
Using unsuitable fuses, repairing fuses or  
bridging a current circuit without fuses can  
cause a fire and serious injury.  
Red  
Blue  
Never use a fuse with a higher value. Only  
Yellow  
20  
replace fuses with a fuse of the same am-  
60  
Fuses and bulbs  
To open the engine compartment fuse box  
Recognise a blown fuse  
Colour  
White or transparent  
Green  
Amp rating  
Open the bonnet page 326.  
A fuse is blown if its metal strip is ruptured  
›››  
25  
30  
40  
Fig. 57.  
›››  
Press the locking tabs to release the fuse  
box cover Fig. 56.  
›››  
Point a lamp at the fuse to see if it has  
Then lift the cover out.  
Orange  
blown.  
To fit the cover, place it on the fuse box.  
To replace a fuse  
CAUTION  
Push the locking tabs down until they click  
audibly into place.  
Remove the fuse.  
Always carefully remove the fuse box  
covers and refit them correctly to avoid  
problems with your vehicle.  
Replace the blown fuse by one with an  
identical amperage rating (same colour and  
markings) and identical size.  
Replace a blown fuse  
Protect the fuse boxes when open to  
avoid the entry of dust or humidity. Dirt and  
humidity inside fuse boxes can cause dam-  
age to the electrical system.  
Replace the cover again or close the fuse  
box lid.  
Fuse placement  
Fuses in the engine compartment  
Fuses in the vehicle interior  
No. Consumers/Amps  
3
4
5
6
8
7
Trailer  
25  
20  
25  
30  
20  
30  
30  
15  
Fig. 57 Image of a blown fuse.  
SCR, Adblue  
Automatic gearbox lever  
Interior light  
Sunroof  
Preparations  
Switch off the ignition, lights and all electri-  
cal equipment.  
Open the corresponding fuse box  
Fig. 56 In the engine compartment: fuse box  
cover.  
Heated seats  
Left door  
page 60, page 61.  
›››  
›››  
9
11  
»
Trailer  
61  
Emergencies  
No. Consumers/Amps  
No. Consumers/Amps  
No. Consumers/Amps  
12  
13  
14  
16  
17  
Right lights  
40  
40  
30  
7.5  
10  
37  
39  
40  
41  
Electric rear lid  
30  
10  
66  
67  
Rear window wiper  
Heated rear window  
15  
Central locking  
Heated steering wheel  
Alarm horn  
30  
Beats Audio CAN and MOST.  
Airbag  
7.5  
7.5  
7.5  
In-line fuse/Amps  
230 V rear power sockets  
Electric driver's seat  
Gateway  
30  
15  
SCR, engine relay, 1.5  
KESSY  
42  
Automatic gearbox lever  
18  
19  
20  
21  
24  
25  
26  
27  
7.5  
7.5  
7.5  
7.5  
15  
Air conditioning and heating con-  
trol panel, rear window heating, AA  
compressor  
43  
44  
10  
Fuse arrangement in engine compartment  
No. Consumers/Amps  
Instrument panel  
Connectivity Box  
Rear camera  
Diagnosis, handbrake switch, light  
switch, reverse light, interior light-  
ing, lit-up door sill  
7.5  
2
3
Engine control unit  
Fuel pump control unit  
Left headlight KL 30 Signal  
Right headlight KL 30 Signal  
Automatic gearbox pump  
KL 30 Signal brake servo  
Horn  
7.5  
7.5/10/20  
15  
4x4 Haldex Control Unit  
RGS+EBSS front seat belts  
Right door  
45  
46  
47  
48  
52  
Steering column  
Radio display  
Driving mode.  
USB  
7.5  
7.5  
10  
4
25  
30  
25  
5
15  
7
30  
RGS+EBSS front seat belts  
7.5  
20  
8
40  
PHEV. Switching off the high voltage  
system for rescue tasks. Identified  
by a yellow label.  
12V socket  
28  
10  
9
15  
Parking sensors, parking assist  
control unit, front camera, radar  
58  
59  
60  
7.5  
7.5  
7.5  
10  
11  
12  
13  
14  
15  
Front windscreen washer  
PHEV Climate  
30  
29  
30  
31  
Trailer  
15  
30  
25  
30  
40  
40  
7.5  
Reverse switch, clima sensor, elec-  
trochromic mirror  
Radio  
Automatic gearbox control unit  
ESP control unit  
15/30  
25  
Trailer  
Diagnosis, headlight control unit,  
headlight adjuster  
34  
35  
36  
230V socket  
Left lights  
Air conditioner fan  
Standheizung  
20  
61  
Starter motor; clutch sensor  
Sound amplifier  
7.5  
10  
ESP control unit  
40  
65  
62  
Fuses and bulbs  
Some of the equipment listed in the ta-  
No. Consumers/Amps  
bles below pertain only to certain versions  
of the model or are optional extras.  
16  
17  
PHEV, Automatic gearbox unit  
PTC  
50  
40  
40  
15  
Please note that the above lists, while  
correct at the time of printing, are subject  
to change.  
18  
20  
21  
22  
PTC  
Front electronic differential  
Engine control unit  
Starter motor  
7.5  
30  
Bulbs  
Engine control unit (diesel/pet-  
rol)  
Changing bulbs  
23  
15  
Full-LED headlights  
24  
25  
26  
27  
Engine sensors  
Engine sensors  
Engine power supply  
Lambda probe  
Engine  
7.5/10  
7.5/10  
7.5/10  
10/15  
10/20  
15/20/30  
10  
Full-LED headlights handle all light functions  
(daylight, side light, turn signal, dipped beam  
and route light) with light emitting diodes  
(LEDs) as a light source.  
Full-LED headlights are designed to last the  
lifetime of the car and light bulbs cannot be  
replaced. In case of headlight failure, go to an  
authorised workshop to have it replaced.  
28  
29  
30  
33  
Fuel pump control unit  
Pressure pump 1.0  
PTC  
Fog lights, rear lights, license plate light,  
side turn signals and additional brake light  
40  
Note  
Taking into account that they use LED bulbs,  
they should be replaced at a technical serv-  
ice centre.  
In the vehicle, there are more fuses than  
those indicated in this chapter. These  
should only be changed by a specialised  
workshop.  
Positions not containing a fuse do not ap-  
pear in the following tables.  
63  

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