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

WARNING: This page is about a different car, the 2015 Audi S7, 2015 Audi RS 7, 2014 Audi S7, 2014 Audi RS 7, and 2013 Audi S7. However, it is still accessible from the selected car via links, so may be relevant.

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, refer to Installing => .

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

The left flange shaft is removed, refer to LEFT FLANGE SHAFT, REMOVING AND INSTALLING .
Bearing bracket with wear pattern "B", refer to LEFT FLANGE SHAFT BALL BEARING PRE-TENSION, CHECKING => Wear pattern (traces of wear if necessary with material erosion all around the hole).

Fig 1: Wear Pattern "B"
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The bearing bracket and ball bearing must be replaced, refer to LEFT FLANGE SHAFT BALL BEARING MOUNTING BRACKET, REMOVING AND INSTALLING

Procedure

Fig 2: Identifying Contact Surface

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-- 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: 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), refer to PRE-TENSION ON BALL BEARING, ADJUSTING, LEFT FLANGE SHAFT => Procedure if there is bearing oversize
With bearing undersize (the bearing sits deeper than the contact surface), refer to PRE-TENSION ON BALL BEARING, ADJUSTING, LEFT FLANGE SHAFT => Procedure if there is Bearing Undersize .