Skoda Rapid Owner's Manual page 157

NOTICE
Water introduced in the plenum chamber, e.g., with a high-pressure cleaner,
can cause considerable damage to the vehicle.
For the sake of the environment
Wash the engine compartment only at specially designated wash areas to prevent
the dirty water contaminated with oil, grease and fuel from entering the sewage
system. In some regions, It is not permitted to wash engine compartment except
at such specific washing bays.
Vehicle overview Before driving
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When driving Maintenance, cleaning, servic-
ing
Care and maintenance of the vehicle
Do-it-yourself
155