100 Sedan L5-2309cc 2.3L SOHC (NF) (1991)
Paint: All Technical Service Bulletins
Paint - Acid Rain Spots
Number:
89-04
August 18, 1989
Group:
50
Body
Applies To:
ALL AUDI VEHICLES
ALL m.y.
Subject: Acid Rain Spots on Paint
WARNING
Before using any chemicals or cleaning compounds,
carefully read all of the cautions and medical
information on the container. Always follow all
of the manufacturer's recommendations.
Acid rain spots are most visible under fluorescent light, and look similar to dried or evaporated water spots.
In most cases, you can remove these spots by following the procedures outlined in this circular and thus avoid re-painting.
Do NOT confuse the effects of acid rain damage with industrial fallout. Industrial fallout consists of small airborne metallic particles that settle onto the
paint and eventually eat their way into the finish. Rubbing your hand across the clean surface will reveal a gritty texture. See the Audi Technical
Management Guide for industrial fallout removal procedures.
Inspect each new vehicle for acid rain spots as soon as it arrives at the dealership. Document your findings at that time in accordance with Transportation
Damage Claims Dealer Instructions. If there is evidence of acid rain spots; obtain prior approval from your DSM to carry out the reconditioning outlined
in this circular.
If acid rain spot removal is new to you, we recommend that you contact a reputable body shop or reconditioning center.