
Controls
 33Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Tilt alarm sensor
The tilt of the vehicle is monitored. The alarm 
system reacts, e.g. to attempts to steal a wheel 
or tow the vehicle.
Interior motion sensor
Coupe
In order for the interior motion sensor to func-
tion properly, the windows and glass roof must 
be completely closed
*.
Convertible
The interior of the car is monitored up to the 
height of the seat cushions. Thus the alarm sys-
tem is activated together with the interior 
motion sensor even if the convertible top is 
open. An alarm can be triggered unintentionally 
by falling objects such as leaves, refer to Avoid-
ing unintentional alarms.
Avoiding unintentional alarms
The tilt alarm sensor and interior motion sensor 
may be switched off at the same time. This pre-
vents unintentional alarms, e.g. in the following 
situations:
>In duplex garages
>During transport on car-carrying trains, 
boats/ships or on a trailer
>When animals are to remain in the vehicle
Switching off tilt alarm sensor and 
interior motion sensor
Press the   button on the remote control 
again as soon as the vehicle is locked.
The indicator lamp lights up briefly and then 
flashes continuously. The tilt alarm sensor and 
the interior motion sensor are switched off until 
the next time the vehicle is unlocked and subse-
quently locked again.
Comfort Access*
Comfort Access enables you to enter your vehi-
cle without needing to hold the remote control 
in your hand. All you need to do is wear the 
remote control close to your body, e.g. in your 
jacket pocket. The vehicle detects the corre-
sponding remote control within the immediate 
vicinity or in the passenger compartment.
Comfort Access supports the following func-
tions:
>Unlocking/locking the vehicle
>Unlocking the trunk lid separately
>Engine starting
>Convenient closing
Functional requirement
>The vehicle or the trunk lid can only be 
locked when the vehicle detects that the 
remote control currently in use is outside of 
the vehicle.
>The vehicle cannot be locked or unlocked 
again until after approx. 2 seconds.
>The engine can only be started when the 
vehicle detects that the remote control cur-
rently in use is inside the vehicle.
Comparison to the standard remote 
control
In general, there is no difference between using 
Comfort Access or pressing the buttons on the 
remote control to carry out the functions men-
tioned above. You should therefore first famil-
iarize yourself with the instructions on opening 
and closing starting on page26.
Special features regarding the use of Comfort 
Access are described below.
If you notice a brief delay while opening or 
closing windows, the glass roof or the 
convertible top, the system is checking whether 
a remote control is inside the vehicle. Please 
repeat the opening or closing procedure, if nec-
essary.< 

Technology for driving comfort and safety
80
Technology for driving comfort and safety
Park Distance Control PDC*
The concept
The PDC assists you with maneuvering in tight 
parking spaces. Acoustic signals and a visual 
indicator
 warn you of the presence of an object 
behind your vehicle. Four ultrasonic sensors in 
the bumper measure the distance.
These sensors have a range of approx. 6.5 ft/
2 m. However, an acoustic warning does not 
sound until an object is approx. 2 ft/60 cm from 
the corner sensors, or approx. 5 ft/1.50 m from 
the center sensors.
PDC is a parking aid that can indicate 
objects when they are approached 
slowly, as is usually the case when parking. 
Avoid approaching an object at high speed; oth-
erwise, physical circumstances may lead to the 
system warning being issued too late.<
Switching on automatically
With the engine running or the ignition switched 
on, the system is activated after approx. second 
when you engage reverse gear or move the 
automatic transmission selector lever to 
position R. Wait this short period before driving.
Switching off automatically
After approx. 55 yd/50 m of driving or above 
approx. 20 mph/30 km/h, the system switches 
off and the LED goes out.
Signal tones
When nearing an object, its position is indicated 
correspondingly by an interval tone. As the dis-
tance between vehicle and object decreases, 
the intervals between the tones become 
shorter. If the distance to the nearest object 
falls to below roughly 1 ft/30 cm, then a contin-
uous tone sounds.
An interval tone is interrupted after approx. 
3seconds:>If you stop in front of an object that has been 
detected by only one of the corner sensors
>If you are driving parallel to a wall
Malfunction
The indicator lamp in the instrument 
cluster comes on. PDC is malfunc-
tioning. A message appears on the 
Control Display. Have the system checked.
To avoid this problem, keep the sensors clean 
and free of ice or snow in order to ensure that 
they will continue to operate effectively. When 
using a high-pressure cleaner, do not spray the 
sensors for extended periods of time and only 
from a distance of at least 1 ft/30 cm.
PDC with visual warning
The approach of the vehicle to an object is 
shown on the Control Display. Objects that are 
farther away are displayed on the Control Dis-
play before a signal tone sounds. The display 
appears on the Control Display as soon as PDC 
is activated.
System limitations
Even with PDC, final responsibility for 
estimating the distance between the 
vehicle and any obstructions always remains 
with the driver. Even when sensors are pro-
vided, there is a blind spot in which objects can 
no longer be detected. The system is also sub-
ject to the physical limits that apply to all forms 
of ultrasonic measurement, such as those 
encountered with trailer towbars and hitches, 
thin or wedge-shaped objects, etc. Low objects 
that have already been displayed, e.g. curbs, 
can disappear again from the detection area of 
the sensors before or after a continuous tone 
sounds. Higher, protruding objects, e.g. ledges, 
cannot be detected. Loud sound sources out-
side or inside the car can drown out the PDC 
signal. Therefore, always drive cautiously; oth-
erwise, there is a risk of personal injury or prop-
erty damage.< 

Driving tips
 115Reference
At a glance
Controls
Communications
Navigation
Entertainment
Mobility
develops inside the tires. In some cases, this 
can result in sudden tire pressure loss.<
Make sure that no liquids are spilled or 
leak from their containers in the cargo 
area, as this could result in damage to the vehi-
cle.<
Determining loading limit
1.Locate the following statement on your 
vehicle's placard
*:
The combined weight of occupants 
and cargo should never exceed 
XXX kg or YYY lbs. Otherwise, damage to 
the vehicle and unstable driving conditions 
may result.<
2.Determine the combined weight of the 
driver and passengers that will be riding in 
your vehicle.
3.Subtract the combined weight of the driver 
and passengers from XXX kilograms or YYY 
pounds.
4.The resulting figure equals the available 
amount of cargo and luggage load capacity. 
For example, if the YYY amount equals 
1,400 lbs. and there will be five 150-lb. pas-
sengers in your vehicle, the amount of avail-
able cargo and luggage load capacity is 
650 lbs: 
1,400 lbs. minus 750 lbs. = 650 lbs.
5.Determine the combined weight of luggage 
and cargo being loaded on the vehicle. That 
weight may not safely exceed the available 
cargo and luggage load capacity calculated 
in step 4.
6.If your vehicle will be towing a trailer, part of 
the load from your trailer will be transferred 
to your vehicle. Consult the manual for transporting a trailer to determine how this 
may reduce the available cargo and luggage 
load capacity of your vehicle.
Load
The permissible load is the total of the weight of 
occupants and cargo/luggage. The greater the 
weight of the occupants, the less cargo/lug-
gage can be transported.
Stowing cargo
Coupe
Convertible
>Position heavy objects as low and as far for-
ward as possible, ideally directly behind the 
respective seat backrests.
>Cover sharp edges and corners.