Preparing the vehicle

The wheel and tire size of the emergency WARNING
The wheel and tire size of the emergency spare wheel/spare wheel may differ to that of the damaged wheel. When using an emergency spare wheel/spare wheel the handling characteristics of the vehicle may change.
Adapt your style of driving accordingly.
Never operate the vehicle with more than one emergency spare wheel/spare wheel that differs in size.
Only use an emergency spare wheel/spare wheel of a differing size briefly and do not switch off ESP®.
When using an emergency spare wheel, you must not exceed the maximum speed of 50 mph (80 km/h).

Have the emergency spare wheel/spare WARNING
Have the emergency spare wheel/spare wheel replaced with a new wheel as soon as possible at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required.

Mercedes-Benz recommends that you use an authorized Mercedes-Benz Center for this purpose. In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop.

Vehicles without a spare wheel/emergency spare wheel are not equipped Vehicles without a spare wheel/emergency spare wheel are not equipped with a tire-change tool kit at the factory. For more information on which tools are required to perform a wheel change on your vehicle, e.g. wheel chock, lug wrench or alignment bolt, consult an authorized Mercedes-Benz Center.

– Prepare the vehicle as described.
– If a trailer is coupled to the vehicle, uncouple it.
– Remove the following items (depending on the vehicle's equipment) from the stowage well under the trunk floor:
- the emergency spare wheel
- the lug wrench
- the folding wheel chock
- the jack
- the ratchet wrench
- the alignment bolt
– Secure the vehicle to prevent it from rolling away.

    See also:

    Additives
    Only use DEF in accordance with ISO 22241. Do not use additives with DEF and do not dilute DEF with water. This may destroy the BlueTEC exhaust gas aftertreatment system. ...

    Starting route guidance to an entry
    This function is available as soon as you have stored a destination in the destination memory. COMAND also stores the destination in the address book with the complete navigable address data. ...

    Switching on DISTRONIC, storing andmaintaining the current speed
    WARNING   The vehicle can be braked when DISTRONIC is activated. For this reason, deactivate DISTRONIC if the vehicle is to be set in motion by other means (e.g. in a car wash or by tow ...