Vehicles With Coil Springs, Checking The Curb Weight Position For Axle Alignment, A7 SPORTBACK
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-, vehicles without Wheel Housing Extension
-- Determine dimension -a- between the center of the wheel and the lower edge of the fender/wheel housing as shown.
Determine the Dimension -a-, vehicles with Wheel Housing Extension
-- Determine dimension -a- between the center of the wheel and the lower edge of the fender/wheel housing -1- as shown.
- The fender/wheel housing lower edge -arrow- is a measuring point, not the wheel housing extension lower edge -2-.
Dimension -a- Overview
| Chassis | 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 | 404 mm | ± 10 mm | 401 mm | ± 10 mm | Less than or equal to 10 mm |
| 1BE | 394 mm | ± 10 mm | 391 mm | ± 10 mm | Less than or equal to 10 mm |
| 1BL | 404 mm | ± 10 mm | 401 mm | ± 10 mm | Less than or equal to 10 mm |
| 1BQ | 394 mm | ± 10 mm | 391 mm | ± 10 mm | Less than or equal to 10 mm |
| 2MC | 403 mm | ± 10 mm | 399 mm | ± 10 mm | Less than or equal to 10 mm |