Removing and installing secondary air pumps: Audi A8 D3 6.0 (BHT, BSB, BTE)
Step-by-step removing and installing secondary air pumps for the Audi A8 D3 6.0: 11 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 D3 (4E, 2002–2010)
- Renewed: o-rings
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- Secure brake disc with wheel bolts.
- Renew O-rings.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.
📋 Procedure
- Activate jacking mode Running gear, front-wheel drive and four-wheel drive43Operating the air suspension.
- Remove front left wheel. [Note: Secure brake disc with wheel bolts.]
- Vehicles with auxiliary heater: remove bolts (arrows) securing exhaust pipe for auxiliary/additional heater to noise insulation.
- Open quick-release fasteners (1) and remove noise insulation (front).
- Remove front section of wheel housing liner (front left) General body repairs, exterior66.
- Pull out air inlet grille (left-side) from bumper (arrows).
- Unplug electrical connectors (1) and (5).
- Release retaining tabs and disconnect hoses (2), (3), (6) and (7) at secondary air pumps (4) and (8).
- Unbolt secondary air pumps from bracket.
- Installation is carried out in the reverse order; note the following: [Note: Renew O-rings.Secure all hose connections with the correct type of hose clips (same as original equipment) Parts catalogue.]
- Deactivate jacking mode Running gear, front-wheel drive and four-wheel drive43Operating the air suspension.
Other AUDI procedures
- Removing and installing intake manifold (bottom section)
- Removing and installing Lambda probe 4G286 (before catalytic converter at rear left)
- Checking delivery rate of fuel pumps - vehicles with fuel system without fuel return line
- Renewing engine control unit J623 (master control unit) – Audi
- Removing and installing coolant pipe (top right) – Audi A8 D3
- 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
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.