Pre-Tension On Ball Bearing, Adjusting, Left Flange Shaft: Notes

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 Audi S5, 2014 Audi S5, 2013 Audi S5, 2012 Audi S5, and 2011 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Straight Edge 500 mm VAS 6075

NOTE:

The pre-tension on the left flange shaft ball bearing must be optimized only on certain vehicles. Refer to the table for a list of the vehicles LEFT FLANGE SHAFT .

This is not necessary on vehicles built later because they have been redesigned.

Left flange shaft removed, refer to LEFT FLANGE SHAFT .
Bearing bracket with wear pattern "B" LEFT FLANGE SHAFT BALL BEARING PRE-TENSION, CHECKING (traces of wear if necessary with material erosion all around the hole).

Fig 1: Adjusting Pre-Tension On Left Flange Shaft Bearing
Courtesy of AUDI OF AMERICA, LLC
The bearing bracket and ball bearing must be replaced. Refer to LEFT FLANGE SHAFT BALL BEARING MOUNTING BRACKET

Procedure

Fig 2: Clean Off Any Dirt And Corrosion From Contact Surface

Courtesy of AUDI OF AMERICA, LLC

-- Clean off any dirt and corrosion from the contact surface -arrow- using 150 grain sand paper.

NOTE:

It is not necessary to sand the contact surfaces all the way down to bare metal. It is enough to just remove any dirt and corrosion.

-- Clean the contact surface and bearing seat.

-- Install the new left flange shaft ball bearing -arrow- into the bearing seat.

Fig 3: Installing New Left Flange Shaft Ball Bearing

Courtesy of AUDI OF AMERICA, LLC

Next procedure:

By bearing oversize (the bearing sticks out slightly above the contact surface)PRE-TENSION ON BALL BEARING, ADJUSTING, LEFT FLANGE SHAFT
With bearing undersize (the bearing sits deeper than the contact surface)PRE-TENSION ON BALL BEARING, ADJUSTING, LEFT FLANGE SHAFT .