Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Differential, Adjusting: Notes
Special tools and workshop equipment required
- Dial Gauge Holder VW 387
- Magnetic Plate 50 mm Dia. VW 385/17
- Punch VW 407
- Thrust Pad 30 - 205
- Torque Wrench (5-50 Nm) V.A.G 1331
- Kukko Extractor 46-58 mm21/7
- Kukko Support 22/2
- Dial Gauge
A new differential adjustment is required when the following components have been replaced:
- Transmission housing
- Clutch housing
- Differential housing
or the
- Differential tapered roller bearing
Adjustment overview, refer to ADJUSTMENT OVERVIEW .
Perform the following procedure:
-- Press the tapered roller bearing outer race into transmission housing without shim, using 30 - 205, refer to Installing the Outer Race/Tapered Roller Bearing into the Transmission Housing .
Bearing inner- and outer races of the tapered roller bearing are paired. Do not interchange them.
-- Press the tapered roller bearing outer race into clutch housing, using 30 - 205, refer to Installing the Outer Race/Tapered Roller Bearing into the Clutch Housing .
-- Insert the differential into the clutch housing.
-- Install the transmission housing and tighten the five bolts to 25 Nm.
-- Install the dial gauge and set it to "0" with a 1 mm preload.
-- Move the differential up and down, read off the play on the dial gauge and note. (example: 0.70 mm).
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.