Checking gear oil level - gearbox with common oil system — AUDI
Checking gear oil level - gearbox with common oil system on Audi: 15 steps. What to remove, in what order, and what to check after.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A8 D4 (4H, 2010–2017)
- Opens: gearbox oil
- Special tools named: VAS 6617/6, VAS 6617/2
Don't miss
- Risk of eye injury.Wear safety goggles. — Unscrew plug for inspection and filler hole (arrow A) on front final drive.
- Risk of eye injury.Wear safety goggles. — Unscrew plug for inspection and filler hole (arrow A) on centre differential housing.
📋 Procedure
- Remove rear noise insulation (2)General body repairs, exterior66Noise insulation; Removing and installing noise insulation.
- Remove rear section of wheel housing liner (front right) General body repairs, exterior66Wheel housing liners; Removing and installing wheel housing liner (front).
- Place used oil collection and extraction unitVAS 6622 below gearbox.
- ⚠ Risk of eye injury.Wear safety goggles. — Unscrew plug for inspection and filler hole (arrow A) on front final drive.
- Allow excess gear oil to drain off.
- Place used oil collection and extraction unitVAS 6622 below gearbox.
- ⚠ Risk of eye injury.Wear safety goggles. — Unscrew plug for inspection and filler hole (arrow A) on centre differential housing.
- Allow excess gear oil to drain off.
- Screw adapter VAS 6617/6 with adapter VAS 6617/2 hand-tight into inspection and filler hole for front final drive.
- Connect hand pump for filling gearboxVAS 6617 and fill up front final drive with gear oil.
- Screw adapter VAS 6617/6 with adapter VAS 6617/2 hand-tight into inspection and filler hole for transfer box.
- Connect hand pump for filling gearboxVAS 6617 and fill up transfer box with gear oil.
- Wait for 5 minutes. [Note: The transfer box incorporates a number of internal oil chambers. These must be filled evenly.It is necessary to wait for at least 5 minutes to allow the internal oil level to balance out between the centre differential and the baffle chamber.]
- Tighten new plug (arrow A) on final drive.
- Tighten new plug (arrow A) on housing for centre differential.
Other AUDI procedures
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
- Removing and installing ancillary bracket – Audi 2.0 TDI · 1 torque figures
- Removing and installing filling connection · 2 torque figures
- Removing and installing ABS control unit J104/ABS hydraulic unit N55, MK25E/MK25E1 and MK25A model year 2010 ►
- Removing and installing turbocharger, biturbo · 1 torque figures
- Audi 100 1991 5cyl Turbo 2.2 timing belt replacement
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.