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382 Wheels and tires
* NOTE Mercedes-AMG vehicles
Observe the notes in the Supplement.
#
You could otherwise fail to recognize
dangers.
& WARNING Risk of accident from losing a
wheel
Oiled, greased or damaged wheel bolt/wheel
nut threads or wheel hub/wheel mounting
bolt threads can cause the wheel bolts/
wheel nuts to come loose.
As a result, you could lose a wheel while driv‐
ing.
Never oil or grease the threads.
#
In the event of damage to the threads,
#
contact a qualified specialist workshop
immediately.
Have the damaged wheel bolts or dam‐
#
aged hub threads replaced.
Do not continue driving.
#
Observe the information on the choice of
#
tires (
page 374).
/
For tires with a specified direction of rotation, an
arrow on the side wall of the tire indicates the
correct direction of rotation. Observe the direc‐
tion of rotation when installing.
Slide the wheel to be mounted onto the
#
alignment bolt and push it on.
& WARNING Risk of injury from tightening
wheel bolts and nuts
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip.
Only tighten wheel bolts or wheel nuts
#
when the vehicle is on the ground.
Be sure to observe the instructions and
#
safety notes on "Changing a wheel"
(
page 374).
/
For safety reasons, only use wheel bolts
#
which have been approved by Mercedes-
Benz and for the wheel in question.
* NOTE Damage to paintwork of the wheel
rim when screwing on the first wheel bolt
If the wheel has too much play when screw‐
ing in the first wheel bolt, the wheel rim paint
can be damaged.
Press the wheel firmly against the
#
wheel hub when screwing on the first
wheel bolt.
Tighten the wheel bolts evenly in a diagonal
#
pattern in the order indicated until they are
finger-tight.
Unscrew and remove the alignment bolt.
#
Tighten the last wheel bolt until it is finger-
#
tight.
Lower the vehicle (
page 382).
/
#
Lowering the vehicle after a wheel change
Requirements:
The new wheel has been installed
R
(
page 381).
/
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Do you have a question about the C-Class Convertible 2021 and is the answer not in the manual?
Questions and answers
I got a message saying my 12 V battery is very low and needs to be recharged.. It referred me to my owner's manual, but I couldn't find any instructions in it on recharging the battery.
To recharge the 12 V battery in a 2021 Mercedes-Benz C-Class Convertible:
- Always use the jump-start connection point in the engine compartment.
- Only use a battery charger with a maximum charging voltage of 14.8 V.
- Ensure sufficient ventilation during the charging process.
- Avoid fire, open flames, sparks, and smoking.
- Never place metal objects or tools on the battery.
- Follow the correct order when connecting and disconnecting battery clamps.
If you need to disconnect the 12 V battery, contact a qualified specialist workshop.
This answer is automatically generated