Axle Alignment Control Position On Vehicles With Air Suspension, Checking

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Axle Alignment Control Position, Checking

Before performing an axle alignment on a vehicle with air suspension, check the curb weight or control position and adapt it again if necessary.

-- Start the axle alignment using the Vehicle Diagnostic Tester in "Guided Functions".

Determining the Height Dimension -a-

Fig 1: Lifting To Curb Weight Position

Courtesy of AUDI OF AMERICA, LLC

Height dimension -a- is the measurement in mm between center of wheel and lower edge of fender.

-- Determine dimension -a- between the center of the wheel and the lower edge of the fender/wheel housing as illustrated.

Height Dimensions Overview

Chassis	Level	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
		Nominal dimension	Drift	Nominal dimension	Drift	Tolerance between the right and left
1BK	auto	410 mm	± 7 mm	405 mm	± 7 mm	<= 10 mm
2MA/2MB	auto	400 mm	± 7 mm	395 mm	± 7 mm	<= 10 mm
1BY	auto	418 mm	± 7 mm	413 mm	± 7 mm	<= 10 mm