TorqFix

Renew roof actuation hydraulic pump V118 — AUDI

Renew roof actuation hydraulic pump V118 on Audi: 16 steps, 2 torque figures. What to remove, what to tighten and to how many Nm, what to check after.

Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.

16 steps 2 torque figures torque figures merged from 2 documented variants

🧭 Before you start

Fits: platform code SG

  • Opens: engine oil

Don't miss

  • Collect any leaking hydraulic oil using a cloth.
  • Check all holes/bores for cleanliness before installing new convertible roof actuation hydraulic pump V118.

🔩 Torque settings

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

TorqueFastener / step
2 Nm (1.5 lb-ft)Tighten bolt (a)
6 Nm (4.4 lb-ft)Secure hydraulic lines with securing bolts (2) and a T25 Torx socket (1) and tighten

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. Remove drive unit for pop-up roof .
  2. Remove oil filler plug from oil reservoir (a) of hydraulic unit.
  3. Drain oil reservoir.
  4. Remove bolts (2) to secure hydraulic lines using a T25 Torx socket (1).
  5. Release hydraulic lines using a twisting motion (arrow A) and carefully remove from housing (arrow B). [Note: Collect any leaking hydraulic oil using a cloth.]
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Remove fitted seals from holes using a blunt hook.
  2. Check all holes/bores for cleanliness before installing new convertible roof actuation hydraulic pump V118.
  3. Refer to marks on line (1) and pump housing in order to allocate hydraulic lines correctly during installation.
  4. Tighten hydraulic lines using bolts (2).
  5. Fill reservoir (b) with hydraulic oil using a suitable syringe (a). [Note: The hydraulic fluid level must be between the MIN and MAX marks (c).The capacity of the complete system is 400 cm3.The amount of fluid required to achieve the fluid level between the MIN and MAX marks is 40 cm3.Check oil level after bleeding and replenish with hydraulic oil as necessary.Hydraulic fluid Electronic Parts Catalogue.]
  6. Install drive unit.
  7. Open and close roof repeatedly to bleed the hydraulic system completely.
  8. To bleed system, screw oil filler plug (a) two full turns into reservoir.
  9. Constantly check oil when opening and closing roof and replenish with hydraulic oil as necessary.
  10. After the system has been bled, check it for leaks.
  11. Tighten bolt (a).

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

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Workshop data on this page last updated 20 Sep 2026.