The following actions must always be carried out in the given order in preparation for changing the wheel :

In the event of a flat tyre, park your vehicle on a firm and level surface at a safe distance from the flow of traffic.

Apply the handbrake firmly Braking, stopping and parking Brakes Parking .

Automatic gearbox: move the selector lever to position P Changing gear Changing gear Automatic gearbox see Automatic gearbox_0 Automatic gearbox see Changing gear_0 Automatic gearbox Manual gearbox see Changing gear_0 Manual gearbox .

Stop the engine and remove the key from the ignition Starting and stopping the engine Engine and ignition Ignition see Engine and ignition_0 .

Manual gearbox: select a gear Changing gear Changing gear Automatic gearbox see Automatic gearbox_0 Automatic gearbox see Changing gear_0 Automatic gearbox Manual gearbox see Changing gear_0 Manual gearbox .

Ensure that all vehicle occupants exit the vehicle and go straight to a safe place, e.g. behind the safety barrier.

Chock the wheel opposite the wheel being worked on with a stone or a similar object.

When towing a trailer, unhitch the trailer from the vehicle and park it properly.

Remove any items of luggage from the luggage compartment.

Remove the spare wheel or temporary spare wheel and vehicle toolkit from the luggage compartment.

Remove the hubcaps Hubcaps Hubcaps .

WARNING
Preparations for changing a wheel
Wheel boltsSwitching the front passenger front airbag on and off manually using the key-operated
switch
Fig. 58 In the stowage compartment on
the front passenger side: key switch for disabling and enabling the front airbag
on the front passenger side
First read and observe the introductory information
and safety warnings
The front passenger front airbag must be switched off when securing a
...
Checking the electrolyte level of the vehicle battery
Fig. 141 In the engine compartment: removing
the vehicle battery cover
First read and observe the introductory information
and safety warningsThe electrolyte level of the vehicle battery should be
checked regularly in high-mileage vehicles, in hot countries and in older vehicle
batteries. ...
Searching for Refrigerant Circuit Leaks with Compressed Air or Nitrogen
Note
This repair manual describes different methods for detecting
leaks in the refrigerant circuit. These methods have been tested
and result in success when used correctly.
If when searching for compressed air / Nit ...