Removing and installing connection for external audio sources R199 AMI (MMI) — AUDI

🧭 Before you start

Fits: Audi A6 C6 (4F, 2004–2011)

Don't miss

• Insert two radio release tools T10057 into slots on connection for external audio sources R199 until they engage. Pointed ends of grips must face outwards.

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Switch off all electrical equipment.
2. Remove ignition key.
3. When renewing control unit, select "“Replacement”" function for appropriate control unit in "“Guided Fault Finding”".
4. ⚠ The MOST Bus cables for the connection for external audio sources R199 have been made as short as possible.Unplug the MOST Bus connector at the connection for external audio sources R199 before removing the connection for external audio sources R199. — Release retainers (C) and detach service flap (A).
5. Unplug all connectors at connection for external audio sources R199.

6. Fit protective cap for cable connectorVAS 6223/9(1) onto MOST bus connector (2).
7. Open glove box.
8. Insert two radio release tools T10057 into slots on connection for external audio sources R199 until they engage. Pointed ends of grips must face outwards.
9. Pull connection for external audio sources R199 out of mounting frame.
10. Press release tabs on connection for external audio sources R199 and remove radio release tool T10057.
11. Remove bolts (2) (2 Nm) on underside. — 2 Nm (1.5 lb-ft)
12. Push tabs (4) and (5) downwards and upwards and slide control unit out of frame (1) to rear.
13. Plug in all connectors.
14. Push connection for external audio sources R199 into mounting frame until it engages.

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 catalytic converter with front silencer (right-side)
• Servicing outer constant velocity joint (100 mm dia.) – Audi
• Removing and installing coupling rod (for anti-roll bar)
• Removing and installing glove box/knee bolster – Audi A8 D3
• Removing and installing carrier for centre armrest – Audi