Opel Cascada Owner's Manual page 21

Activate the anti-theft alarm system
3 27.
■ The engine cooling fans may run
after the engine has been switched
off 3 182.
■ After running at high engine speeds
or with high engine loads, operate
the engine briefly at a low load or
run in neutral for
approx. 30 seconds before
switching off, in order to protect the
turbocharger.
Keys, locks 3 20, Laying the vehicle
up for a long period of time 3 181.
In brief 19