Adjusting Shims Available for

WARNING: This page is about a different car, the 2024 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Shim thickness (mm)
0.37	0.65	0.93	1.21	1.49
0.41	0.69	0.97	1.25	1.53
0.45	0.73	1.01	1.29	1.57
0.49	0.77	1.05	1.33	1.61
0.53	0.81	1.09	1.37	1.65
0.57	0.85	1.13	1.41
0.61	0.89	1.17	1.45

Tolerance variations make it possible to find the exact shim thickness required.

Shim Thickness "S ₁ ", Determining

Formula: "S ₁ " = "S _total " - "S ₂ "

Example:
	Total shim thickness "S _total " for "S ₁ " + "S ₂ "	2.22 mm
-	Shim thickness "S ₂ "	0.77 mm
=	Shim thickness "S ₁ "	1.45 mm

-- Determine the shim according to the table. Refer to the Parts Information for the part number.

Shim thickness (mm)
0.65	0.89	1.13	1.37	1.61
0.69	0.93	1.17	1.41	1.65
0.73	0.97	1.21	1.45	1.69
0.77	1.01	1.25	1.49	1.73
0.81	1.05	1.29	1.53	1.77
0.85	1.09	1.33	1.57

Tolerance variations make it possible to find the exact shim thickness required.

-- Remove the old shims "S ₁ *" and "S ₂ *" and install the newly determined shims. Refer to OVERVIEW - DIFFERENTIAL .

Measurement check

Courtesy of AUDI OF AMERICA, LLC

-- Turn the differential five turns in both directions after installing the shims "S ₁ " and "S ₂ " so that the tapered roller bearings can settle.

-- Measure backlash on the circumference four times.

Specified value: 0.15 ± 0.04 mm

Dial Indicator :VAS 6080A
Dial Gauge Extension (8 cm plan)
Measuring Lever :VW388
Ring Gear Locking Sleeve :VW521/4
Positioning Tolerance Shell :VW521/13
Dial Indicator Holder :VW 387

If the torsional backlash is outside of the tolerance, then repeat the adjustment. Total shim thickness "S _total " may not be changed.

Tightening Specifications

Refer to OVERVIEW - PARKING LOCK