Hyundai I20 Owner's Manual page 399

Maintenance
G230105APB
Underbody maintenance
Corrosive materials used for ice and
snow removal and dust control may col-
lect on the underbody. If these materials
are not removed, accelerated rusting can
occur on underbody parts such as the
fuel lines, frame, floor pan and exhaust
system, even though they have been
treated with rust protection.
Thoroughly flush the vehicle underbody
and wheel openings with lukewarm or
cold water once a month, after off-road
driving and at the end of each winter.
Pay special attention to these areas
because it is difficult to see all the mud
and dirt. It will do more harm than good
to wet down the road grime without
removing it. The lower edges of the
doors, rocker panels, and frame mem-
bers have drain holes that should not
clog with dirt; trapped water in these
areas can cause rusting.
7 86
WARNING
After washing the vehicle, test the
brakes while driving slowly to see if
they have been affected by water. If
braking performance is impaired,
dry the brakes by applying them
lightly while maintaining a slow for-
ward speed.
G230106AUN
Aluminum wheel maintenance
The aluminum wheels are coated with a
clear protective finish.
• Do not use any abrasive cleaner, pol-
ishing compound, solvent, or wire
brushes on aluminum wheels. They
may scratch or damage the finish.
• Use only a mild soap or neutral deter-
gent, and rinse thoroughly with water.
Also, be sure to clean the wheels after
driving on salted roads. This helps pre-
vent corrosion.
• Avoid washing the wheels with high-
speed car wash brushes.
• Do not use any acid detergent. It may
damage and corrode the aluminum
wheels coated with a clear protective
finish.