Page 41 of 473

40 Getting started
Adjusting
Manual seat adjustment
1Seat fore and aft adjustment
2Seat height
3Seat backrest tilt
Warning!G
When leaving the vehicle, always remove the 
SmartKey from the starter switch, take it 
with you, and lock the vehicle.
Even with the SmartKey removed from the 
starter switch, the power seats* can be op-
erated when the respective door is open. 
Therefore, do not leave children unattended 
in the vehicle, or with access to an unlocked 
vehicle. A child’s unsupervised access to a 
vehicle could result in an accident and/or 
serious personal injury.
Warning!G
Children 12 years old and under must be 
seated and properly secured in an appropri-
ate infant, or toddler restraint, or booster 
seat recommended for the size and weight 
of the child. For additional information, see 
“Children in the vehicle” (
page 79).
A child’s risk of serious or fatal injuries is 
significantly increased if the child restraints 
are not properly secured in the vehicle 
and/or the child is not properly secured in 
the child restraint.
!When moving the seats, make sure there are 
no items in the footwell or behind the seats; 
otherwise you could damage the seats. 
     
        
        Page 83 of 473

82 Safety and Security
Occupant safety
If you place a child in a forward-facing 
child restraint on the passenger seat, 
move the seat as far back as possible, 
use the proper child restraint recom-
mended for the age, size and weight of 
the child, and secure child restraint with 
the vehicle’s seat belt according to the 
child seat manufacturer’s instructions. 
For children larger than the typical 
12-month-old child, the passenger front 
air bag may or may not be activated 
(
page 72). 
Warning!G
Infants and small children should never 
share a seat belt with another occupant. 
During an accident, they could be crushed 
between the occupant and seat belt.
A child’s risk of serious or fatal injuries is 
significantly increased if the child restraints 
are not properly secured in the vehicle 
and/or the child is not properly secured in 
the child restraint.
Warning!G
Children too big for a toddler restraint must 
ride in seats using regular seat belts. 
Position the shoulder belt across chest and 
shoulder, not face or neck. A booster seat 
may be necessary to achieve proper seat 
belt positioning for children over 41 lbs until 
they reach a height where a lap/shoulder 
belt fits properly without a booster.
When the child restraint is not in use, 
remove it from the vehicle or secure it with 
the seat belt to prevent the child restraint 
from becoming a projectile in the event of 
an accident.
Do not leave children unattended in the 
vehicle, even if the children are secured in a 
child restraint system. Unsupervised 
children in a child restraint system may use 
vehicle equipment and may cause an 
accident and/or serious personal injury.
 
     
        
        Page 344 of 473

343 Operation
Vehicle care
Seat belts
Use only clear, lukewarm water and 
soap.
Upholstery
Using aftermarket seat covers or wearing 
clothing that have the tendency to give off 
coloring (e.g. when wet, etc.) may cause 
the upholstery to become permanently 
discolored. By lining the seats with a 
proper intermediate cover, 
contact-discoloration will be prevented.Leather upholstery
Please note that leather upholstery is a 
natural product and is therefore subject 
to a natural aging process. Leather 
upholstery may also react to certain 
ambient influences such as high humidity 
or high temperature by showing wrinkles 
for example.
Wipe leather upholstery with a damp 
cloth and dry thoroughly or clean with 
Mercedes-Benz approved Leather 
Care.Exercise particular care when cleaning 
perforated leather as its underside should 
not become wet.
Wood trims
Dampen cloth using water and use 
damp cloth to clean wood trims in your 
vehicle.
!The seat belts must not be treated with 
chemical cleaning agents. Do not dry the seat 
belts at temperatures above 176°F (80°C) or in 
direct sunlight.
Warning!G
Do not bleach or dye seat belts as this may 
severely weaken them. In a crash they may 
not be able to provide adequate protection.
Warning!G
Only use seat covers which have been 
tested and approved by Mercedes-Benz for 
your vehicle model. Using other seat covers 
may interfere with or prevent the deploy-
ment of the head-thorax air bags. Contact 
an authorized Mercedes-Benz Center for 
availability.
!Wipe with light pressure, to avoid damage to 
the upholstery.
!Do not use solvents like tar remover or 
wheel cleaner nor polishes or waxes as these 
may be abrasive.