Overview - Windshield Projection (Head-Up Display)

2025 Audi A4 Quattro PrestigeSECTION Overview - Windshield Projection (Head-Up Display)

The overview shows a LHD vehicle as an example. For RHD vehicles the layout is a mirror image.

Fig 1: Exploded View Of Windshield Projection (Head-Up Display)
GWWA90-10271Courtesy of AUDI OF AMERICA, LLC
  1. Nut
    • Quantity: 3
    • 8 Nm
  2. Expanding Rivet
    • for air duct
  3. Exterior Bracket
  4. Bolt
    • Replace after removing
    • Quantity: 2
    • Tightening sequence. Refer to Fig 2.
  5. Instrument Panel
  6. Bolt
    • Quantity: 5
    • 1 Nm
  7. Upper Cover
  8. Frame
    • for upper cover
  9. Air Duct
    • For windshield projection control module
  10. Expanding Rivet
    • for air duct
  11. Bolt
    • Tightening Specifications and Sequence. Refer to Fig 2.
  12. Windshield Projection Head Up Display Control Module -J898-
  13. Bolt
    • Replace after removing
    • Quantity: 2
    • Tightening Specifications and Sequence. Refer to Fig 2.
  14. Interior Bracket
  15. Central Tube
  16. Nut
    • Quantity: 3
    • 8 Nm
Fig 2: Windshield Projection Head Up Display Control Module Tightening Sequence
GWWA90-10204Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts in the sequence shown.

Bolts Tightening Specification
-1- 5.5 Nm
-2 and 3- 4 Nm
RENDER: 1.0x

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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.