Audi Workshop Service and Repair Manuals

Adjusting 2nd and 4th gear brake “B2” on gearboxes with corrugated washer on last outer plate   Note t  Gearbox code letters → Chapter. t  On these gearboxes, the thickness of the last outer plate(s) determines the clearance of brake “B2” → Item. t  Adjustment instructions for gearboxes without corrugated washer → Chapter. Special tools and workshop equipment required

t  Setting tool -3459-

t  Depth gauge -VAS 6082- Procedure –  To adjust, fit components without corrugated washer → Item, without last outer plate → Item and without spring cap → Item.

Determining thickness of last outer plate -D- The thickness of the outer plate(s) is governed by gap dimension -x-. This gap dimension is calculated according to the following formula:    -x- = -a- – -b- – 3.6 mm D -  Outer plate(s) x -  Gap dimension a -  Installation position of 2nd and 4th gear brake “B2”; determining value → Anchor b -  Size of ATF pump housing; determining value → Anchor   Note t  The illustration shows a sectional view of the assembled brake “B2”. The setting tool -3459- that is used to exert a force on the clutch pack is not shown. t  The value of “3.6 mm” takes into account the settling of the plates due to the force exerted by setting tool -3459-. t  The first outer plate -arrow- is 3 mm thick. Determining value “a” –  Assemble planetary gearbox as far as last inner plate for “B2” → Chapter.   Note The last outer plate, the last 3 spring caps and the corrugated washer are not installed. –  Apply setting tool -3459- to the last inner plate and turn so that the 3 clips align with the 3 holes for the ATF pump. –  Bolt setting tool -3459- to flange for ATF pump: tightening torque 5 Nm.   Note The clutch pack for “B2” is now pressed together for the measurements.

–  Use depth gauge -VAS 6082- to measure from pump flange/gearbox housing -arrow- to setting tool -3459-.

l  Example of value “a”:
Height of setting tool -3459-	60.0 mm
– Measured value	– 29.8 mm
= Determined value “a”	30.2 mm

–  Detach setting tool -3459-.

Determining value “b” –  Push piston into ATF pump onto stop. –  Fit paper gasket onto flange of ATF pump. –  Place straightedge -B- on stator support -arrows- and use depth gauge -VAS 6082--item A- to measure down to paper gasket on flange of ATF pump.

l  Example of value “b”:
Measured value	40.1 mm
– Straightedge	– 19.5 mm
= Determined value “b”	20.6 mm

l  Example for calculating gap “x”:    x = a – b – 3.6 mm l  x = 30.2 mm – 20.6 mm – 3.6 mm = 6.0 mm –  Determine thickness of outer plate(s) “D” according to following table: for part numbers refer to → Electronic parts catalogue.

Gap “x” (mm)	Outer plate(s) in mm
4.25 … 4.49	2.75
4.50 … 4.74	3.00
4.75 … 4.99	3.25
5.00 … 5.24	3.50
5.25 … 5.49	3.75
5.50 … 5.74	2.00 + 2.00
5.75 … 5.99	2.00 + 2.25
6.00 … 6.24	2.25 + 2.25
6.25 … 6.49	2.25 + 2.50
6.50 … 6.74	2.50 + 2.50
6.75 … 7.00	2.50 + 2.75

–  Fit three spring caps on compression springs. –  Install last outer plate(s) of the required thickness. –  Install corrugated washer. –  Further procedure → Anchor.