sensor VOLKSWAGEN BEETLE 2018 Owners Manual

Front view

Fig. 2 Vehicle front overview.
Key to fig. 2:
(1) Inside mirror with sensor on mirror base for:
– Rain sensor (if equipped)
– Low-light sensor (if equipped)
(2) Windshield wipers
(3) Engine hood release
(4) Headlights (on left and right)
(5) Fog lights/static cornering lights (on left and right, if equipped)
(6) Threaded hole for the front towing eye (behind cover)
(7) Turn signals (on left and right)

General information
When a valid vehicle key comes within range ⇒ fig. 27, the Keyless Access system recognizes a valid vehicle entry request as soon as a door handle sensor is touched or the Volkswagen emblem on the rear hatch is pressed. The following functions are then enabled without active use of the remote con-trol vehicle key:
x Keyless Entry: Unlocking the vehicle with the sensor surfaces on the outside door handles of the
driver or passenger door ⇒ fig. 28 (A) or by using the Volkswagen emblem on the rear hatch.
x Keyless Go: Start the engine and drive. For this, you just have to press the starter button and a
valid remote control vehicle key must be inside the vehicle ⇒  Starting and stopping the engine.
x Keyless Exit: Locking the vehicle via the door handle sensor on the driver or passenger door (B).
The power locking system works like the standard unlocking and locking system. Only the way that the systems are operated is different.
All turn signals flash twice to confirm that the vehicle has been unlocked and once to confirm that it has been locked.
The vehicle will lock again in a few seconds if you do not open one of the doors or the rear hatch.
Unlocking and opening doors (Keyless Entry)
x Grasp the door handle of the driver or front passenger door so that you touch the unlocking sensor surface (A).
x Open the door.
Closing and locking doors (Keyless Exit)
x Switch the ignition off.
x Close the driver door.
x Touch the sensor surface in the door handle on the driver or front passenger door (B). The vehicle is locked. The door being locked must be closed.
Unlocking and locking the rear hatch
If the vehicle is locked and a valid remote control vehicle key is within range ⇒ fig. 27 of the rear hatch, it unlocks automatically when opened.
Open and close the rear hatch as you would a standard rear hatch ⇒  Rear hatch.
The rear hatch locks automatically when it is closed except in the following situations:
x The vehicle is completely unlocked.
x The most recently used vehicle key is inside the vehicle. All turn signals flash four times.
Locking with a second vehicle key
If a remote control vehicle key is inside the passenger compartment, the vehicle can be locked from the outside only if a second valid remote control vehicle key is within range.
When the vehicle is locked from the outside, the keyless go (starting) function of any keys left in the
passenger compartment will be deactivated ⇒  Starting and stopping the engine. A key that was inside the vehicle when it was locked from the outside can be reactivated by pressing the

The door handle sensors become active again if one of the following events occurs:
x A short time has passed.
x OR: The vehicle is unlocked using the

Stopping automatic movement: Pull/press the switch again.
Reactivating the one-touch feature
If the vehicle battery is disconnected or dead and the windows are not completely closed, the one-touch feature will not work and must be reactivated:
x Switch on the ignition.
x Close all windows and doors.
x Pull the switch for the respective window up and hold it for at least 2 seconds in this position.
x Release the switch, pull up and hold again. The one-touch feature is now reactivated.
The one-touch feature can be reactivated for one or more windows at the same time.
Convenience closing
The convenience closing feature lets you close the windows and the power sunroof as follows:
x From inside the vehicle: When the driver door is open, pull up and hold the switch for the driver window until all windows and the sunroof close.
x Manual locking from outside the vehicle: Lock the vehicle with the vehicle key bit in the driver door
and keep the key turned in the locking position to close all windows and the power sunroof ⇒  Manual-ly unlocking and locking the driver door.
x Vehicles with Keyless Access: Hold your finger on the lock sensor surface on the outside of the
door handle for a few seconds until the windows and power sunroof close ⇒  Unlocking or locking the vehicle with Keyless Access.
WARNING
Improper use of power windows can result in serious personal injury.
x Never let anyone get in the way of a power window when closing it.
x When locking the vehicle from the outside, make sure that no one, especially children, remains in the vehicle. The windows will not open in case of an emergency.
x Always take the key with you when you leave the vehicle. You can still use the power win-dows for several minutes after the ignition is switched off as long as the driver or passenger door has not been opened.
NOTICE
The windows must go down slightly when you unlock the vehicle. Otherwise the windows and seals could be damaged when opening the doors.
If the power windows malfunction, the one-touch feature, as well as pinch protection may not work properly. See an authorized Volkswagen dealer or authorized Volkswagen Service Facility right away.
If convenience closing of the power windows from the outside requires removing the cover cap of
the lock cylinder on the driver door, the cover cap must be reinstalled after the vehicle is locked ⇒  Manually unlocking and locking the driver door.

Daytime running lights (DRL)
Separate lamps are installed in the headlights or in the front bumper for the daytime running lights (DRL).
The daytime running lights are switched on whenever the ignition is switched on and the light switch is in position / or !54/.
When the daytime running lights are switched on, only these separate lamps come on ⇒ .
If the light switch is in position !54/, a low-light sensor switches the low beams as well as the instru-ment and switch lighting on and off automatically.
Daytime running lights (DRL) parking feature
Some models are equipped with a daytime running lights (DRL) parking feature that switches the daytime running lights off when the parking brake is engaged and the ignition is switched on.

Function Action
Switching the DRL off: – Switch the ignition on. – Turn the light switch to the / position. – Set the parking brake.
Switching the DRL back on: – Release the parking brake.

Static cornering lights
Your vehicle may have fog lights under the front bumper, which on some models are also static cor-nering lights. On some models the static cornering lights may be integrated in the headlights. At speeds below about 25 mph (40 km/h), the light on one side of the vehicle will come on automatically when you turn a corner. If you turn to the right, the right fog light comes on; turn left and the left fog light comes on. The light dims and goes out when the steering wheel is straightened out again.
When you move the selector lever to Reverse (R), the static cornering lights on both sides of the vehicle may come on so that you can see the area around the vehicle better when backing up.
The static cornering lights work only when the headlights are on. If you are using automatic headlights
(headlight switch in the !54/ position ⇒ fig. 72), they work only when the headlights have been auto-matically switched on. The static cornering lights do not come on when the headlight switch is in the /
position or when the fog lights themselves have been switched on ⇒  Switching lights on and off.
Automatic headlights (!54/)
Your vehicle may be equipped with automatic headlights (!54/), which are a convenience feature only and cannot always recognize all lighting and driving situations.
If the light switch is in the !54/ position, both vehicle lighting and instrument and switch lighting are
automatically switched on and off in the following situations ⇒ :

Automatic activation: Automatic deactivation:
If the low-light sensor registers darkness, for example when driving through a tunnel. If sufficient brightness is registered.
If the rain sensor recognizes rain and switches the windshield wipers on. If the windshield wipers have not moved for several minutes.

NOTICE
x To help prevent damage to the engine hood and the windshield wiper arms, lift the wiper arms away from the windshield only when they are in the service position.
x Always carefully fold the windshield wiper arms down against the windshield before driving the vehicle.
Rain sensor

Fig. 80 Windshield wiper lever: Adjusting the rain sensor 1 (if equipped).

Fig. 81 Inside the front windshield above the inside mirror: Sensitive rain sensor surface.

Possible reasons for changes in the way the rain sensor works
The rain sensor may misread what is happening in the detection zone of its sensitive rain-sensor
surface ⇒ fig. 81 (arrow) and not work for a number of reasons, which may include:
x Worn out wiper blades: Worn out wiper blades may leave a film of water or wiping streaks; this can cause the wipers to run longer, to wipe more often, or to wipe continuously at high speed.
x Insects: Insects hitting the windshield may trigger the wipers.
x Salt streaks: Salt streaks on the windshield from winter driving can cause wiping more often or continuously on glass that is almost dry.
x Dirt: Caked-on dust, wax, any other buildup on the windshield (lotus effect), or car-wash detergent residue can lower the rain sensor's sensitivity and cause it to react too slowly or not at all.
x Crack or chip in the windshield: If a stone hits and chips the windshield while the rain sensor is on, this will trigger a wiper cycle. After that, the rain sensor will recognize the change and recalibrate itself to respond to the sensitive surface's reduced detection zone. Depending on the size of the chip, the sensor's reaction pattern may or may not change.
WARNING
The rain sensor cannot always recognize rain and activate the wipers.
x Switch the wipers on manually when water on the windshield reduces visibility.
Clean the rain sensor's sensitive surface ⇒ fig. 81 (arrow) regularly and check the wiper blades for wear or damage.
To remove wax and coats of polish safely, we recommend using an alcohol-based windshield cleaner.
Checking and refilling windshield washer fluid

Fig. 82 In the engine compartment: Cap of the windshield washer fluid reservoir.

The self-dimming feature can be switched on and off with the switch on the inside mirror (2) A or (2) B. When self-dimming is activated, the indicator light (1) is on.
There are two sensors in the interior mirror housing:
x One sensor on the side facing the interior to measure light from the rear of the vehicle ⇒ fig. 83 A
(3) or ⇒ fig. 83 B (3).
x One sensor on the side facing the windshield to measure light from the front of the vehicle ⇒ fig. 83 C (4).
If the ignition is switched on, the mirror automatically darkens depending on the amount of light shining into the vehicle from the rear.
The self-dimming feature is deactivated when you shift the transmission into reverse or switch on the interior lights or the reading light.
Do not attach external navigation devices to the windshield or in the vicinity of the self-dimming inside
mirror ⇒ .
WARNING
The illuminated display on an external navigation device can cause the self-dimming inside mirror to malfunction, which can result in crashes and serious injuries.
x Malfunctions in the self-dimming function can result in the inside mirror being unable to evaluate the exact distance of vehicles in the rear or other objects.
If the light striking the sensor is filtered or blocked (such as by a sunshade), the self-dimming inside mirror will not work properly or may not work at all.
Outside mirrors

Fig. 85 In the driver door: Adjusting knob for the outside mirrors.

WARNING
After the vehicle has been washed, the wet brakes or, in winter, brake discs or pads coated with ice, react slower and need longer stopping distances.
x Always dry the brakes and clean off any ice coatings with a few careful applications of the brake. Make sure not to endanger other motorists or cyclists or disobey legal requirements.
CAUTION
Sharp edges under the vehicle can cut exposed skin.
x Always protect your hands and arms from cuts on sharp metal edges when cleaning the underbody, the inside of the wheel housings, etc.
NOTICE
x The water temperature must not be more than +140 °F (+60 °C).
x To help prevent damage to the paint, do not wash the vehicle in direct sunlight.
x Do not use insect sponges, abrasive kitchen sponges or similar things to clean the vehicle. These can damage the paint finish.
x Never clean headlights with a dry cloth or sponge. Always use a wet cloth or sponge. For best results use soapy water.
x When washing or rinsing the vehicle in cold weather, do not let water get into the lock cylinders or point the hose at gaps around the doors, hood, or rear hatch. The water could freeze on the locks and seals and make it difficult to open the vehicle!
x When outside temperatures are low, wipe the rubber seals and their contact surfaces dry to help prevent freezing.
NOTICE
To help prevent vehicle damage in a car wash:
x Compare the vehicle track width with the dimensions of the guide rails in the car wash to help prevent damage to wheel rims and tires!
x Switch off the rain sensor before driving the vehicle through a car wash ⇒ page 121, Rain sensor.
x Make sure there is enough clearance for the height and width of the vehicle.
x To help prevent paint damage to the engine hood, place wiper blades against the windshield after they have dried. Do not let them snap back into place.
x Fold the outside mirrors toward the vehicle body.
x Lock the rear hatch to help prevent unintentional opening in the car wash.
Washing with a power washer

Changing the vehicle's suspension system can change the way that the airbag system works in a crash. For example, using tire-rim combinations not approved by Volkswagen, lowering the vehicle, changing the stiffness of the suspension, including the springs, suspension struts, shock absorbers etc. can change the forces that are measured by the airbag sensors and sent to the electronic control unit. Some suspension changes can, for example, increase the force levels measured by the airbag sensors and sent to the electronic control unit and make the airbag system deploy in crashes in which it would not deploy if the changes had not been made. Other kinds of changes may reduce the force levels measured by the sensors and prevent the airbag from deploying when it should.
Never install leather upholstery on a vehicle that originally had cloth upholstery. Never install cloth upholstery on a vehicle that originally had leather upholstery. The capacitive passenger detection system for the Advanced Airbag system will not work properly if different upholstery is installed on the passenger seat than the upholstery originally installed on the vehicle when it was originally manufactured.
WARNING
Changing the vehicle's suspension including use of unapproved tire-rim combinations can change airbag performance and increase the risk of serious personal injury in a crash.
x Never install suspension components that do not have the same performance characteristics as the components originally installed on your vehicle.
x Never use tire-rim combinations that have not been approved by Volkswagen.
WARNING
Leaving the optional safety belt extender attached to the safety belt buckle on the front passenger seat when the safety belt is not being used will prevent the Advanced Airbag System from working properly and can increase the risk of serious personal injury in a collision.
x Leaving the extender attached to the safety belt buckle when the front seat is occupied and the safety belt is not being used will signal to the airbag control unit that the front passenger seat is occupied and that the safety belt is being used. The electronic control unit for the airbag system will then receive incorrect information that will
– cause the safety belt pretensioner to deploy unnecessarily in collisions and
– cause the front passenger airbag to deploy later in collisions in which the front airbag would otherwise be triggered earlier to help protect an unrestrained front seat passenger.
x Always remove the safety belt extender when it is not needed and stow it safely.
x Never use the safety belt extender to secure a child restraint.
WARNING
Items stored between the safety belt buckle and the center console can cause safety belt buckle to send the wrong information to the airbag control unit and prevent the Advanced Airbag System from working properly.
x Always make sure that nothing can interfere with the safety belt buckles and that they are not obstructed.