ECU VOLKSWAGEN UP! 2021 Owner´s Manual

Fig. 164 Changing the bulbs in the headlights
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The actions should only be carried out in the specified order:
1.Observe and follow the instructions on the checklist ⇒ Information on changing bulbs.
2.Use the screwdriver from the toolkit to unscrew the two securing bolts in the wheel
housing trim ⇒ Fig. 163 (arrows) ⇒ Vehicle toolkit.
3.Unscrew the front spreader rivet at the bottom of the wheel housing trim ⇒ Fig. 163Ⓐ
and remove it completely.
4.Grip the edge of the wheel housing trim in between the holes for the securing bolts and
push it gently towards the vehicle interior to release the clip located behind the trim.
5.Carefully push the wheel housing trim to one side.
6.Release the connector ⇒ Fig. 164① and pull it off.
7.Turn the bulb holder ⇒ Fig. 164anticlockwise in the direction of the arrow as far as it will
go and pull it out to the rear along with the bulb.
8.Replace the defective bulb with a new bulb of the same type.
9.Insert the bulb holder into the headlight and turn it clockwise as far as it will go.
10.Connect the connector ⇒ Fig. 164① to the bulb holder. The connector should click into
place.
11.Return the wheel housing trim to its original position, ensuring that the clip engages.
12.Insert the spreader river in the wheel housing trim and the bumper and push in fully
⇒ Fig. 163Ⓐ.
13.Use the screwdriver to screw in the two securing bolts ⇒ Fig. 163 (arrows).
Changing bulbs in the tail light cluster
Fig. 165 In the side of the luggage compartment: A: removing the cover, B: removing the tail light
cluster
Fig. 166 Tail light cluster: C: removing the bulb holder, B: removing the bulbs
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The steps should only be carried out in the specified order.
Removing the tail light cluster
1.Observe and follow the instructions on the checklist ⇒ Information on changing bulbs.
2.Open the tailgate ⇒ Tailgate.
3.Carefully lever off the cover ① ⇒ Fig. 165A.
4.Pull the lock ③ on the connector ② in the direction of the arrow ⇒ Fig. 165B. Use the
screwdriver from the vehicle tools for this purpose.
5.Press the catch ④ and pull off the connector ② ⇒ Fig. 165B.

6.Remove the wing nut ⑤ ⇒ Fig. 165B.
7.Carefully pull the tail light cluster out and remove it from the body.
8.Remove the tail light cluster and place it on a clean, flat surface.
Changing the bulb
9.Release the bulb holder at the tabs (arrows) ⇒ Fig. 166C and remove the bulb holder
from the rear light cluster.
10.Replace the defective bulb with a new bulb of the same type ⇒ Fig. 166D.
11.Insert the bulb holder into the tail light cluster. The release tabs (arrows) ⇒ Fig. 166C
must click into place.
Fitting the tail light cluster
12.Carefully put the tail light cluster into the opening in the body.
13.Use one hand to hold the tail light cluster in the fitting position while using the other hand
to tighten the wing nut ⑤ ⇒ Fig. 165B.
14.Check that the tail light cluster is positioned correctly and securely.
15.Fit the connector ② to the bulb holder and push in the catch ③ against the direction
shown by the arrow ⇒ Fig. 165B.
16.Replace the cover. The cover must engage fully and securely.
17.Close the tailgate ⇒ Tailgate.
Changing the bulb in the number plate light
Fig. 167 In the rear bumper: removing the number plate light
Fig. 168 Number plate light: removing the bulb holder
First read and observe the introductoryinformation and safety warnings⇒
Introduction
A normal flat screwdriver can be used to remove the number plate light ⇒.
The actions should only be carried out in the specified order:
1.Observe and follow the instructions on the checklist ⇒ Information on changing
bulbs.
2.With one hand, push the number plate light from the left to the right and take out of
the bumper ⇒ Fig. 167.
3.Carefully lift the number plate light slightly out of the bumper.
4.Turn the bulb holder with the bulb anticlockwise and remove in direction of arrow
⇒ Fig. 168.
5.Replace the defective bulb with a new bulb of the same type.
6.Insert the bulb holder into the number plate light and turn it as far as it will go in the
opposite direction to the arrow ⇒ Fig. 168.
7.
Carefully insert the number plate light with the left edge in the opening in the
bumper. When doing this, ensure that the number plate light is inserted in the right
direction, i.e. the spring must be on the right-hand side.
8.Push the number plate light into the bumper until it clicks into place.

The discharged vehicle battery must be properly connected to the vehicle's electrical system.
The vehicles must not touch. Otherwise electricity could flow as soon as the positive terminals are
connected.
Ensure that the battery clamps have good metal-to-metal contact with the battery terminals.
If the engine does not start immediately, switch off the starter after about 10 seconds and try again
after about half a minute.
The steps should only be carried out in the specified order.
Attaching the jump leads
•Switch off the ignition in both vehicles ⇒ Starting and stopping the engine.
•If necessary, open the battery cover in the engine compartment ⇒ Vehicle battery.
•Connect one end of the red jump lead to the positive terminal ⇒ Fig. 171⊕ or ⇒ Fig. 172⊕ in
the vehicle with the discharged battery Ⓐ ⇒.
•Connect the other end of the red jump lead to the positive terminal ⊕ in the vehicle providing
assistance Ⓑ.
•In vehicles without start/stop system: connect one end of the black jump lead to the negative
terminal ㊀ in the vehicle providing assistance Ⓑ ⇒ Fig. 171.
•In vehicles with start/stop system: connect one end of the black jump lead Ⓧ to a suitable
earth connection, to a solid metal part that is securely bolted onto the cylinder or to the cylinder
block itself ⇒ Fig. 172.
•Connect the other end of the black jump lead Ⓧ to a solid metal component bolted on to the
engine block, or onto the engine block in the vehicle with the discharged battery. Do not
connect it to a point near the battery Ⓐ ⇒.
•Position the leads in such a way that they cannot come into contact with any moving parts in the
engine compartment.
Starting the engine
•Start the engine of the vehicle providing assistance and let it run at idle.
•Start the engine of the car with the discharged vehicle battery and wait two or three minutes
until the engine is running smoothly.
Removing the jump leads
•Before disconnecting the jump leads, switch off the dipped beam headlights if they are switched
on.
•Turn on the heater blower and rear window heater in the vehicle battery with the discharged
battery. This helps minimise the voltage peaks generated when the leads are disconnected.
•With the engines running, disconnect the jump leads in the exact reverse order to the
instructions given above.
•Close the battery cover.
Tow-starting and towing
 Introduction
This chapter contains information on the followingsubjects:
⇒  Notes on tow-starting
⇒ Notes on towing
Jump starting the vehicle incorrectly can cause the battery to explode, which can lead to
serious injuries. Please note the following in order to reduce the risk of the battery exploding:
•All work on the vehicle battery and the electrical system can cause serious chemical
burns, fire and electric shocks. Always read the warnings and safety information before
carrying out any kind of work on the vehicle battery ⇒ Vehicle battery.
•Always wear suitable eye protection and never lean over the vehicle battery.
•Attach the connector cables in the correct order – the positive cable first, followed by the
negative.
•Never connect the negative cable to parts of the fuel system or to the brake lines.
•The non-insulated parts of the battery clamps must not be allowed to touch. The jump lead
attached to the positive vehicle battery terminal must not touch metal parts of the vehicle.
•Check the window on the vehicle battery using a torch if necessary. If the display is light
yellow or colourless, do not jump start the vehicle. Seek expert assistance.
•Avoid electrostatic discharge in the vicinity of the vehicle battery. The gas emitted from the
vehicle battery could be ignited by sparks.
•Do not use jump leads to start the engine if the vehicle battery is damaged or if it is or has
ever been frozen.
WARNING

Fig. 173 On the right-hand side of the front bumper: releasing and removing the cover
Fig. 174 Front bumper, right-hand side: screwing in the towing eye
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The towing eye is screwed into a threaded hole behind a cover on the right of the front bumper
⇒ Fig. 173.
The towing eye must always be kept in the vehicle.
Comply with the notes on towing ⇒ Notes on towing.
Fitting the towing eye at front
•Remove the towing eye from the vehicle toolkit in the luggage compartment ⇒ Vehicle toolkit.
•Press at the bottom of the cover ⇒ Fig. 173① to release the cover.
•Pull the cover forwards to remove it ② and leave it to hang on the vehicle.
•Turn the towing eye anticlockwise into the threaded hole and tighten as far as possible
⇒ Fig. 174⇒. Use a suitable object to screw the towing eye fully and securely into the
mounting.
•After you have finished towing, remove the towing eye by unscrewing it clockwise.
•Insert the lower locking lug in the opening in the bumper and guide the upper locking lug
carefully over the edge of the opening. If necessary, press the upper locking lug from above.
•Push on the upper area of the cover until the lower locking lug engages in the bumper.
Driving tips when towing
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Towing requires some experience, especially when using a tow rope. Both drivers should be
familiar with the technique required for towing. Inexperienced drivers should not attempt to tow.
When driving, ensure that you do not pull too hard on the towing vehicle and take care to avoid
jerking movements. When towing on an unpaved road, there is always a risk of overloading and
damaging the anchorage points.
You can still use the turn signals if your vehicle is towed with the hazard warning lights and ignition
switched on. Move the turn signal lever to signal the required direction. The hazard warning lights
will not flash while the turn signal is being used. The hazard warning lights will start flashing
automatically as soon as the turn signal lever is moved back to the neutral position.
Notes for the driver of the towed vehicle:
•Leave the ignition switched on to prevent the steering wheel from locking, and so that the turn
signals, horn, windscreen wipers and washers can be used.
•As the power assisted steering does not work if the engine is not running, you will need more
strength to steer than you normally would.
The towing eye must always be screwed firmly into the mounting. Otherwise, the towing eye
can be ripped out of the mounting when the vehicle is being tow-started or towed.
NOTICE