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 boltsService fluids and consumables
First read and observe the introductory information
and safety warningsAll service fluids and consumables, e.g.
toothed belts, tyres, coolant, engine oil, spark plugs and vehicle batteries, are
being constantly developed. For this reason, service fluids and consumables should
be replaced at ...
Safety Precautions
General Safety Precautions
As per VBG 20, German industrial liability insurance
association.
Follow the instructions for the workplace. They should be
displayed in the workplace.
...
Tread Depth, Measuring
Note
When measuring tread depth, take measurements in the main
grooves.
Do not take measurements at the tread wear indicator.
Tread depth of a tire must be mea ...