Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
TSB-44-08-14
Service Bulletin/Repair Instructions
AUDI: WHEEL BOLTS REQUIRE TORQUE ADJUSTMENT. TORQUE STICKS AND TORQUE EXTENSION BARS ARE NOT APPROVED BY AUDI OF AMERICA, INC. AND SHOULD NOT BE USED TO APPLY TORQUE TO WHEEL BOLTS. ALL AUDI MODELS INCLUDED. *PE
20056243
Service Bulletin/Repair Instructions
HEADLIGHT AIMING, USING HELLA UNIVERSAL BEAMSETTER. *KB
2012749-2
Service Bulletin/Repair Instructions
EXTERIOR LIGHTS, MOSITURE ACCUMULATION. *PE
0604
Service Bulletin/Repair Instructions
OIL SLUDGE LIMITED WARRANTY EXTENSION. *KB
0431
Service Bulletin/Repair Instructions
REPAIRS OF OIL SLUDGE RELATED PROBLEMS. *TT
9711039701X
Service Bulletin/Repair Instructions
CONDITION WITH VEHICLES CONVERTIBLE TOP OPERATION IS SLOW OR INOPERATIVE. *YC