Removing and installing fresh air blower V2 (with J126 control unit) — AUDI

🧭 Before you start

Fits: Audi R8 (4S, 2015–)

🔩 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. ⚠ Risk of injury from knee airbag.Before working in the vicinity of pyrotechnic components, the mechanic must "“discharge static electricity”". Observe the safety precautions for working on airbags General body repairs, interior00Safety precautions; Safety precautions when working on pyrotechnic components. — Switch off ignition.
2. Remove glove box General body repairs, interior68Shelves / trim panels; Removing and installing glove box.
3. Remove footwell vent (front passenger side) .
4. Equipment version with knee airbag: Remove knee airbagGeneral body repairs, interior69Knee airbags; Exploded view - knee airbag.
5. ⚠ Switching on the ignition when the air intake box is removed results in an entry in the heater and air conditioner event memoryDo not switch on ignition when air intake box is removed.If the ignition was switched on when the air intake box was removed, interrogate and clear event memory of front air conditioner operating and display unit E87 in "“Guided Fault Finding”" mode. — Remove air intake box (4).

6. Unscrew bolt (2) (tightening torque: 2 Nm). — 2 Nm (1.5 lb-ft)
7. Pull fresh air blower (1) out of air intake box (4).
8. ⚠ Fan impeller imbalance.Do not touch the fan wheel of the fresh air blower V2(3). Applying force to the fan wheel or moving the balancing weights attached to the fan wheel could cause imbalance and therefore lead to operating problems. — Install air intake box (4).
9. Re-install removed components in reverse order.
10. Interrogate event memory and erase any entries displayed; then perform "“Basic setting”" ("“Guided Fault Finding”").
11. As a final step, check operation of heater and air conditioner.

Other AUDI procedures

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• Removing engine – Audi A8 D3 · 41 torque figures
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• Checking injection quantity – Audi A8 D3
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