2010 VOLKSWAGEN CC sensor

“Coming home” Action
Switch on: – Switch off the ignition.
– Operate the headlight flasher for about
1 second
The “Coming home” lighting is switched on when
the driver door is open.
The delay period starts once the last vehicle door
or the luggage compartment lid is closed.
Switch off: – Automatically after delay period is over.
– Automatically, if a vehicle door or the luggage
compartment lid is still open about 30 seconds
after activation.
– Turn light switch to the / position.
– Switch the ignition on.


“Leaving
home”
Action
Switch on: – Unlock the vehicle if the light switch is in the !54/
position and the low-light sensor registers darkness.
Switch off: – Automatically after preset delay period is over.
– Lock the vehicle.
– Turn the light switch to the / position.
– Switch the ignition on.

Background lighting in the outside mirrors
The background lighting in the outside mirrors illuminates the area
near the doors when entering and exiting the vehicle. It is switched on
when the vehicle is unlocked, a vehicle door is opened, or the “Com-
ing home” or “Leaving home” feature is activated. If the vehicle is
equipped with a light sensor, the background lighting in the outside
mirrors is only switched on in darkness.

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

Fig. 94 Windshield wiper lever: Adjusting rain sensor 1.

Fig. 95 Inside the front windshield above the inside mirror: Sensitive
rain sensor surface.

Push the lever into the desired position ⇒ fig. 94:
(A) Rain sensor off (windshield wiper lever home position).
(B) Rain sensor active – automatic wiping as needed.
(1) Adjusting the sensitivity of the rain sensor:
– Move switch to the right – high sensitivity.
– Move switch to the left – low sensitivity.
After switching the ignition off and back on again, the rain sensor
stays on and works again with the wiper lever in position (B).
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. 95 (arrow) and not work for a
number of reasons, which include:
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.
Insects: Insects hitting the sensor may trigger the wipers.
Salt streaks: Salt streaks on the windshield from winter driving can
cause wiping more often or continuously on glass that is almost dry.
Dirt: Caked-on dust, wax, any other buildup on the windshield (lo-
tus effect), or car-wash detergent residue can lower the rain sensor's
sensitivity and cause it to react too slowly or not at all.
Crack or chip in the windshield: If a stone hits and chips the wind-
shield 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.
Switch the wipers on manually when water on the windshield
reduces visibility.
Clean the rain sensor's sensitive surface ⇒ fig. 95 (arrow) regular-
ly and check the wiper blades for wear or damage.

(2) Switch
(3) Sensor for recognizing entry of light
The auto-dimming feature can be switched on and off with the switch
on the inside mirror (2) A or (2) B. When auto-dimming is activated,
the indicator light (1) is on.
If the ignition is switched on, the sensor (3) automatically darkens the
inside mirror depending on the amount of light shining into the vehicle
from the rear.
The auto-dimming feature is deactivated when you shift the transmis-
sion 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 auto-dimming inside mirror ⇒ .
WARNING
The illuminated display on an external navigation device can
cause the auto-dimming inside mirror to malfunction, which
can result in crashes and serious injuries.
Malfunctions in the auto-dimming function can result in the
inside mirror being unable to evaluate the exact distance of ve-
hicles in the rear or other objects.
If the light striking the sensor is filtered or blocked (such as by a
sunshade), the auto-dimming inside mirror will not work properly or
may not work at all.

Install only radial tires only of the same make, the same dimen-
sions (tread circumference), and similar tread profile on all 4 wheels.
The tread depth of new tires can differ between tire models and
manufacturers because of different design features and tread design.
Replacing tires
Tires should be replaced in pairs and not individually (both front
tires or both rear tires at the same time) ⇒ .
Replace tires only with tires that have the same specifications, in-
cluding width and diameter, load and top speed rating as the tires
approved by Volkswagen for your vehicle and model.
Never use tires that are larger or wider than the dimensions of the
tires approved by Volkswagen for your vehicle and model. Larger
tires could scrape and rub on the vehicle body or other parts of the
vehicle.
Tire Pressure Monitoring System (TPMS) considerations
Factory-installed wheels are equipped with a sensor that constantly
monitors tire pressure, then transmits this information to the TPMS ⇒ 
Tire Pressure Monitoring System (TPMS). If you are going to replace
the wheels, make sure that the new wheels also have sensors that
are compatible with the TPMS on your vehicle. New wheels with sen-
sors have to be recognized and integrated into the system. The new
wheels and sensors are recognized and integrated when driving off
the first time.
If you install wheels that do not have sensors, or have sensors that
are not compatible, the TPMS will not work properly. In this case, the
TPMS will not be able to monitor tire pressure or warn you if pressure
is low. An error message may appear in the instrument cluster display
or the TPMS will switch itself off.
Whenever you change sensors, you have to install new valves and
seals. Please see an authorized Volkswagen dealer of an authorized
Volkswagen Service Facility.
Always drive with the valve caps securely installed. We recom-
mend using factory-supplied valve caps. Ask an authorized
Volkswagen dealer or an authorized Volkswagen Service Facility to
replace lost caps.
If you install new tires that differ the original Volkswagen specifica-
tions, for your vehicle and model, the benchmark tire inflation pres-

sure values stored in your vehicle's TPMS may have to be adjusted
(reprogrammed). This requires professional assistance. For more
information, contact your authorized Volkswagen dealer or authorized
Volkswagen Service Facility.
Installing replacement tires with steel cord body plies in the tire side-
wall may cause malfunction of the TPMS, and is not recommended
(cord material information in molded on the tire sidewall).
Always check the TPMS indicator light after replacing one or more
tires on your vehicle. If the indicator light is on, the TPMS is not work-
ing properly. Your replacement tire might be incompatible with the
system, or some component of the TPMS may be damaged.
For detailed information about TPMS, how it works and what you
need to know ⇒ Tire Pressure Monitoring System (TPMS).
WARNING
New tires tend to be slippery and must be broken in.
Always drive with special care for the first 350 miles (560 km)
to help reduce the risk of losing control, a collision, and serious
personal injuries.
WARNING
Tires must have the required clearance. Tires that do not have
enough clearance can rub against parts of the vehicle body,
suspension, and brake system, causing brake system failure,
tread delamination, and sudden blowouts.
Always make sure that new tires are not larger than the tires
approved for your vehicle and that the new tires do not rub
against parts of the vehicle.
NOTICE
When switching to different tires, make certain the valves and
sensors are not damaged.
Never drive without valve stem caps. The valves and sensors
could be damaged.

If a sensor for the Tire Pressure Monitoring System must be
replaced, the corresponding valve must be replaced at the same
time.
Always dispose of old tires in accordance with legal require-
ments.
TPMS wheel sensors are classified as Perchlorate Material –
special handling may apply. Obey all legal requirements regarding
handling and disposal of these components – see
http://www.dtsc.ca.gov/hazardouswaste/perchlorate. Obey all appli-
cable legal requirements regarding handling and disposal of the vehi-
cle or parts of its restraint system, including airbag modules and safe-
ty belts with pretensioners. Authorized Volkswagen dealers and au-
thorized Volkswagen Service Facilities are familiar with the require-
ments, and we recommend that you have them perform this service
for you.
If the replacement wheel is different from the tires that you have
mounted on your vehicle — for example, winter tires, wider, low-
profile tires or a compact spare — only use the replacement wheel for
a short time and drive cautiously.
Replace it with a tire matching the others on your vehicle as soon
as possible.
Although tire size specifications can be the same, the actual di-
mensions may differ from those nominal values for different tire
makes, or the tire contours may be significantly different.

inflation pressure sensors ⇒  Tire Pressure Monitoring System
(TPMS).
Driving without valve caps, with the wrong valve caps, or with
valve caps that are not properly screwed on can damage the tire
valves and the sensors on the Tire Pressure Monitoring System
⇒  Tire Pressure Monitoring System (TPMS). To help prevent
damage, always use valve stem caps like those originally in-
stalled at the factory. The caps must be screwed on tightly. Do
not use metal valve caps or “comfort” valve stem caps.
Underinflation increases fuel consumption.
There may be differences between the pressure readings from a
tire pressure gauge and the pressures registered by the Tire Pressure
Monitoring System. The electronic Tire Pressure Monitoring System
is more accurate.
When the TPMS warns that the pressure in at least one tire is too
low, check the tire pressure in all 4 tires with an accurate tire pressure
gauge. Low tire pressure usually cannot be spotted by looking at the
tire. This is especially true for low-profile tires. When checking the tire
pressures, refer to ⇒  Tire Pressure Monitoring System (TPMS).
Tire inflation pressure in cold tires