TorqFix

Exploded view - intake manifold (bottom section) with fuel rail — AUDI

Exploded view - intake manifold (bottom section) with fuel rail on Audi: 4 steps, 5 torque figures, engines CALA, CALB, CGWA, CGWB.

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

4 steps 22 engine codes 5 torque figures engine codes and torque figures merged from 9 documented variants

🧭 Before you start

Fits: Audi A6/A7 C7 (4G, 2011–2018); platform code 4X

🔩 Torque settings

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

TorqueFastener / step
10 Nm (7.4 lb-ft)⚠ The fuel system operates at extremely high pressure
10 Nm (7.4 lb-ft)Tighten bolts (arrows)
10 Nm (7.4 lb-ft)Tighten bolts (arrows) in diagonal sequence
9 Nm (6.6 lb-ft)Tighten bolts and nuts (arrows) in stages
9 Nm (6.6 lb-ft)Tighten bolts and nuts (arrows) in stages and in diagonal sequence

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. Tighten bolts and nuts (arrows) in stages (final torque 9 Nm). — 9 Nm (6.6 lb-ft)
  2. Tighten bolts and nuts (arrows) in stages (final torque 9 Nm). — 9 Nm (6.6 lb-ft)
  3. Tighten bolts (arrows) in diagonal sequence to 10 Nm. — 10 Nm (7.4 lb-ft)
  4. Tighten bolts in stages as follows:

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.