Warning: Be especially careful when working in the engine compartment.
Turn off the engine and remove the ignition key.
Turn on parking brake.
Set the gearshift lever to neutral and the automatic transmission selector to position R.
Let the engine cool down.
While the engine is hot:
- avoid placing your hands in the area where the engine cooling fan rotates - it may suddenly start rotating;
- do not open the coolant expansion tank cap, the cooling system is under pressure.
Try not to spill liquids on a hot engine - they may ignite.
Avoid short-circuiting electrical circuits, especially the battery.
When performing inspection work on a running engine, beware of rotating parts (for example, V-belt pulleys, generator, cooling system fan blades, etc.) and high voltage in the ignition system.
When servicing and repairing the fuel system or electrical equipment:
- always disconnect the battery from the vehicle's electrical system;
- do not smoke near the engine;
- never work near an open flame;
- always keep a working fire extinguisher "at hand".
Do not mix up the liquids when adding them - this will lead to serious disruptions in the operation of units and systems.
In order to detect oil and fluid leaks in a timely manner, it is necessary to regularly inspect the parking area under the vehicle. If there are oil or operating fluid stains, have the vehicle's units and systems checked for leaks at an Audi service center.