Vehicles With Coil Springs, Checking The Curb Weight Position For Axle Alignment, A6 Sedan/AVANT
The curb weight position must be checked before beginning an axle alignment on vehicles with coil springs. Curb weight position means the weight of the vehicle ready for operation (completely filled fuel tank and windshield/headlamp washer fluid reservoir, spare tire, vehicle tool kit, vehicle jack) and without a driver.
Determine the Dimension -a-.
-- Determine dimension -a- between the center of the wheel and the lower edge of the fender/wheel housing as shown.
Dimension -a- Overview
| Suspension | Distance between the Center of the Wheel and the Lower Edge of the Fender/Wheel Housing | ||||
|---|---|---|---|---|---|
| Front Axle | Rear Axle | Tolerance between the right and left | |||
| Specified size | Tolerance | Specified size | Tolerance | ||
| 1BA | 413 mm | ± 10 mm | 414 mm | ± 10 mm | Less than or equal to 10 mm |
| 1BB | 413 mm | ± 10 mm | 414 mm | ± 10 mm | Less than or equal to 10 mm |
| 1BE | 393 mm | ± 10 mm | 394 mm | ± 10 mm | Less than or equal to 10 mm |
| 1BL | 403 mm | ± 10 mm | 404 mm | ± 10 mm | Less than or equal to 10 mm |
| 1BQ | 393 mm | ± 10 mm | 394 mm | ± 10 mm | Less than or equal to 10 mm |
| 1BR | 426 mm | ± 10 mm | 427 mm | ± 10 mm | Less than or equal to 10 mm |