This is a common question, and the simple answer is yes. If you decide to wash your vehicle within 30 days of your repairs, it is recommended that you do so carefully. Instead of using a commercial car wash, wash your vehicle by hand. Cool water, a mild car cleaning solution, and a soft, clean sponge or cloth are all you’ll need.
Other things you should avoid doing for about a month after you get your car back are:
Wiping it down with a dry cloth vigorously after a wash
Travelling down gravel roads
Parking under trees, utility lines, or other common areas where bird droppings may be present is prohibited
Removing snow and ice from painted surfaces callously