
53 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Vehicles with trunk lid opening / closing system:
Press trunk lid button (2) briefly. The trunk lid closes 
automatically.
The trunk lid can also be closed with the trunk lid 
opening / closing switch located on the driver’s door, see 
page 56.Notes:
The automatic closing process is interrupted if the 
trunk lid is pushed against an object. The trunk lid will 
reverse slightly and stop. In its final closing stage the 
hydraulic power closing assist mechanism releases the 
trunk lid which then drops into the lock by its own 
weight. Now the trunk lid will stop but not reverse 
slightly. 
Investigate and correct the cause of interruption.
Now press trunk lid button (2) again to close the trunk 
lid.
P54.25-2403-26
Wa r n i n g !
To prevent possible personal injury, always keep 
hands and fingers away from the trunk opening 
when closing the trunk lid. Be especially careful 
when small children are around.Always be sure persons who might get injured are 
away from the trunk area when you operate the 
trunk closing button located on the vehicle door.To interrupt the hydraulic power closing assist 
mechanism press trunk lid close button (2) inside 
the trunk lid, push in trunk lid lock or press 
buttonŠ on the electronic key. 

57 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Notes:
The automatic closing process is interrupted, if the 
trunk lid is pushed against an object. The trunk lid will 
reverse slightly and stop. In its final closing stage the 
hydraulic power closing assist mechanism releases the 
trunk lid which then drops into the lock by its own 
weight. Now the trunk lid will stop but not reverse 
slightly.
Investigate and correct the cause of interruption.
Now press trunk lid opening/closing switch again to 
close the trunk lid.
In case of a malfunction the trunk lid can be opened and 
closed manually.
To open, unlock trunk lid with the mechanical key and 
open lid by hand, see page 51.
To close, lower trunk lid with hands placed flat on trunk 
lid. Please remember to keep your fingers out of the 
space between the lid and the vehicle.The trunk can also be opened by using the remote 
control. PressŠ button.
The trunk lid cannot be opened by the switch or the 
remote control when previously locked separately with 
the mechanical key. To open, see page 51.
The trunk lid cannot be opened with the trunk lid 
opening/closing switch when the vehicle was 
previously locked with the central locking switch. To 
unlock vehicle with the central locking switch, see 
page 48.
Ve h i c l e s  w i t h  K E Y L E S S - G O :  
To prevent a possible inadvertent lockout, the trunk lid 
will open automatically if a KEYLESS-GO-card is 
recognized in the area of rear shelf or inside the trunk. 

208 Interior equipment
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Parcel net in front passenger footwell
A small convenience parcel net is located in the front 
passenger footwell. It is for small and light items, such 
as road maps, mail, etc..
Note:
With large objects stored in the parcel net do not slide 
the seat fully forward, it could damage them.Parcel net in trunk
There are hooks (1) on the left and right inside the 
trunk from which the parcel net is suspended.
The tab (arrow) must point down into the trunk.
The parcel net and hooks are only designed to take light 
loads in normal driving conditions. They are unable to 
secure a load in the event of an accident. Observe the 
weight limit on the tab (arrow).
Wa r n i n g !
Do not place heavy or fragile objects, or objects 
having sharp edges, in the parcel net.In an accident, during hard braking or sudden 
maneuvers, they could be thrown around inside 
the vehicle, and cause injury to vehicle occupants.
P68.00-2091-26
1 

349 Tires, Wheels
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Rotating wheels
The wheels can be rotated according to the degree of 
tire wear while retaining the same direction of travel.
Rotating, however, should be carried out as 
recommended by the tire manufacturer, before the 
characteristic tire wear pattern (shoulder wear on front 
wheels and tread center wear on rear wheels) becomes 
visible, as otherwise the driving properties deteriorate.
Notes:
Thoroughly clean the inner side of the wheels any time 
you rotate the wheels or wash the vehicle underside.
The use of retread tires is not recommended. Retread 
tires may adversely affect the handling characteristics 
and safety of the vehicle.
Dented or bent rims can cause tire pressure loss and 
damage to the tire beads. For this reason, check rims for 
damage at regular intervals. The rim flanges must be 
checked for wear before a tire is mounted. Remove 
burrs, if any.
Check and ensure proper tire inflation pressure after 
rotating the wheels. For tire inflation pressure see 
inside of fuel filler flap and also page 296.Spare wheel
Spare wheel S 430, S 500 and S 600 
(except Sport Package)
Important!
The spare wheel rim is mounted with a full size tire of 
the same type as on the vehicle, and is fully functional. 
However, that spare wheel rim is weight optimized and 
has a limited service life of 12 000 miles (20 000 km) 
use before a standard wheel rim must replace it.
In the case of a flat tire, you may temporarily use the 
spare wheel.
Do not operate vehicle with more than one spare wheel 
mounted.
Wa r n i n g !
The spare wheel rim is for temporary use only. Use 
for over a total of 12 000 miles (20 000 km) 
(aggregate of all uses) may cause wheel rim failure 
leading to an accident and possible injuries. 

357 Battery
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index The spare tire should be checked periodically for 
condition and inflation. Spare tire will age and become 
worn over time even if never used, and thus should be 
inspected and replaced when necessary.Battery
Important!
Battery replacement information:
The maintenance-free battery is located in the trunk 
under the right-hand wheel well cover panel.
The service life of the battery is dependent on its 
condition of charge. The battery should always be kept 
sufficiently charged, in order to last an optimum length 
of time.
Wa r n i n g !
Do not overinflate tires. Overinflating tires can 
result in sudden deflation (blowout) because they 
are more likely to become punctured or damaged 
by road debris, potholes etc.. Follow recommended 
inflation pressures.Do not overload the tires by exceeding the specified 
vehicle capacity weight (as indicated by the label 
on the driver’s door latch post). Overloading the 
tires can overheat them, possibly causing a 
blowout.
Wa r n i n g !
Failure to follow these instructions can result in 
severe injury or death.Never lean over batteries while connecting, you 
might get injured.Battery fluid contains sulfuric acid. Do not allow 
this fluid to come in contact with eyes, skin or 
clothing. In case it does, immediately flush affected 
area with water and seek medical help if necessary.A battery will also produce hydrogen gas, which is 
flammable and explosive. Keep flames or sparks 
away from battery, avoid improper connection of 
jumper cables, smoking etc.. 

422 Index
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car careIndex
TTachometer ......................................................................117
Technical data  ................................................................ 396
Electrical system  ....................................................... 400
Main dimensions  ...................................................... 401
Rims and tires  ...........................................................398
Weights ....................................................................... 401
Tele Aid  ........................................................................... 218
Emergency calls  ........................................................ 219
Information ................................................................ 223
Initiating an emergency call manually  ................. 221
Roadside Assistance  ................................................. 222
TELE AID - 
malfunction and warning messages  ......................327
Telephone ........................................................................ 127
General notes .................................................... 209, 216
Incoming call  ............................................................. 131
Redialing .................................................................... 129
Telephone book  ......................................................... 127
TELEPHONE – FUNCTION - 
malfunction and warning messages  ......................329
Telephones and two-way radios ................................... 216
The first 1 000 miles (1 500 km)  ................................ 217
Tire inflation pressure  .................................................. 356Tire inflation pressure monitor  ................................... 152
Inquiry of present tire inflation pressure  ............. 152
TIRE PRESSURE - 
malfunction and warning messages  ..................... 322
Tires
Driving instructions  .................................................251
Rims and tires  .......................................................... 398
Rotating wheels  ........................................................ 349
Tire inflation pressure  ............................................ 356
Tire Replacement  ..................................................... 348
Tire speed rating  ...................................................... 253
Tire traction  .............................................................. 252
Winter driving instructions  .................................... 254
Tool kit
See Vehicle tools ....................................................... 346
Tow-away alarm  ................................................................ 61
Towing the vehicle  ......................................................... 361
Traveling abroad  ........................................................... 257
Trip computer  ................................................................. 134
Trip odometer  ................................................................. 117
Trunk ................................................................................. 51
Opening ........................................................................ 36
Power closing assist .................................................... 48
Release switch  ............................................................. 55
Release/close switch  ..................................................56
Trunk lid closing feature  ...........................................53