2021-2026 Seat Leon 4 Door Emergencies -> Jump start User Manual
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Emergencies -> Jump start for Your Seat Leon 4 Door Fourth Generation (2021-2026)

Self-help  
1
Press and hold release button Fig. 48  
If the engine fails to start because of a dis-  
charged battery, the battery can be connec-  
ted to the battery of another vehicle to start  
the engine.  
›››  
CAUTION  
and pull gently on the wiper blade in the di-  
rection of the arrow.  
Damaged or dirty windscreen wipers  
could scratch the glass.  
Fit a new wiper blade of the same length  
If products containing solvents, rough  
and design on to the wiper arm and hook it  
into place.  
Jump leads must comply with standard DIN  
72553 (see cable manufacturer's instruc-  
tions). The wire cross section must be at least  
25 mm2 for petrol engines and at least  
35 mm2 for diesel engines.  
sponges or sharp objects are used to clean  
the blades, the graphite layer will be dam-  
aged.  
Rest the wiper arms back onto the wind-  
screen.  
Never use fuel, nail varnish remover, paint  
thinner or similar products to clean the win-  
dows.  
Changing the rear window wiper blade  
Note  
Separate the wiper arm from the rear win-  
dow.  
In icy conditions, always check that the  
The vehicles must not touch each other,  
wiper blades are not frozen to the glass be-  
fore using the wipers. In cold weather, it  
may help to leave the vehicle parked with  
otherwise electricity could flow as soon as  
the positive terminals are connected.  
Remove the blade from the holder below  
the centre. During this operation, hold the  
wiper arm firmly.  
the wipers in service position page 52.  
›››  
The discharged battery must be properly  
connected to the on-board network.  
Fit the new blade (of the same length and  
CAUTION  
type) into the housing of the wipe arm by  
pressing it in place. When doing so, hold the  
wiper arm by the upper end.  
To prevent damage to the bonnet and the  
wiper arms, only leave them in the service  
position.  
Fold the wiper arm and rest it on the win-  
dow.  
Before driving, always lower the wiper  
arms.  
WARNING  
Worn or dirty windscreen wiper blades re-  
duce visibility and increase the risk of acci-  
dent and serious injury.  
Jump start  
Always replace damaged or worn wind-  
Jump leads  
screen wiper blades or blades that no lon-  
ger clean the windscreen properly.  
The jump lead must have a sufficient wire  
cross section.  
53  
Emergencies  
2. Connect one end of the red jump lead to  
8. Start the engine of the vehicle with the  
flat battery and wait for 2 or 3 minutes  
until the engine is running.  
Jump start: description  
+
the positive  
terminal of the vehicle  
A
with the flat battery  
Fig. 49.  
›››  
3. Connect the other end of the red jump  
Removing the jump leads  
+
lead to the positive terminal  
in the ve-  
B
hicle providing assistance  
.
9. Before you remove the jump leads,  
switch off the dipped beam headlights if  
they are switched on.  
4a. In vehicles without a Start-Stop system:  
connect one end of the black jump lead  
to the negative terminal  
of the vehicle  
Fig. 49.  
10. Turn on the heater blower and heated  
rear window in the vehicle with the flat  
battery. This helps minimise voltage  
peaks which are generated when the  
leads are disconnected.  
B
providing the current  
›››  
4b. In vehicles with a Start-stop system:  
connect one end of the black jump lead  
Fig. 49 Diagram of connections for vehicles  
X
to a suitable ground terminal, to a sol-  
without Start-Stop system.  
id piece of metal in the engine block, or  
11. When the engine is running, disconnect  
the leads in reverse order to the details  
given above.  
to the engine block itself Fig. 50.  
›››  
5. Connect the other end of the black jump  
X
lead  
to a solid metal component bol-  
Make sure the battery clamps have sufficient  
metal-to-metal contact with the battery ter-  
minals.  
ted to the engine block or to the engine  
block itself of the vehicle with the flat  
battery. Do not connect it to a point near  
A
the battery  
.
If the engine fails to start after about 10 sec-  
onds, switch off the starter and try again after  
about 1 minute.  
6. Position the leads in such a way that  
they cannot come into contact with any  
moving parts in the engine compart-  
ment.  
WARNING  
Fig. 50 Diagram of connections for vehicles  
with Start-Stop system.  
Please note the safety warnings referring  
to working in the engine compartment  
Starting  
Jump lead terminal connections  
page 326.  
›››  
7. Start the engine of the vehicle with the  
boosting battery and let it run at idling  
speed.  
The battery providing assistance must  
have the same voltage as the flat battery  
1.  
Switch off the ignition of both vehicles  
.
›››  
54  

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