Hyundai Elantra HD: Underbody maintenance - Exterior care - Appearance care - Maintenance - Hyundai Elantra HD 2006–2010 Owners ManualHyundai Elantra HD: Underbody maintenance

Corrosive materials used for ice and snow removal and dust control may collect 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 doors, rocker panels, and frame members have drain holes that should not be allowed to clog with dirt; trapped water in these areas can cause rusting.

WARNING 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 forward speed.

Bright-metal maintenance
To remove road tar and insects, use a tar remover, not a scraper or other sharp object. To protect the surfaces of bright-metal parts from corrosion, apply a coating of wax or chrome preser ...

Aluminum wheel maintenance
The aluminum wheels are coated with a clear protective finish. Do not use any abrasive cleaner, polishing compound, solvent, or wire brushes on aluminum wheels. They may scratch or damage the f ...