Tech Article Title Author Date
Removing Tar and Road Grime AudiWorld 1996

The easiest way to remove tar and other road grime from your A4 is by using WD40. Just spray the WD40 on the tar or spot, wait a few moments, and then wipe off with a clean, soft cloth.

It is very important to wash this area afterwards with soap and water to get all the oil off the car.