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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 26 (3.0L - Exhaust System & Emission Controls - Engine Code: CATA) >> 26 Exhaust System, Emission Controls >> Exhaust Manifold >> Exhaust Manifold Overview

Exhaust Manifold Overview

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NOTE:

The exhaust manifold is illustrated with the intermediate pipe for cylinder bank 2 (left side).

Fig 1: Exhaust Manifold Overview (Left Side)
GWWA26-10546Courtesy of AUDI OF AMERICA, LLC
  1. Nut
    • Tightening specification: 25 Nm
    • Replace
    • Coat with hot bolt paste; Hot bolt paste.
  2. Exhaust Manifold
  3. Seal
    • Replace
  4. Seal
    • Replace
  5. Bolt
    • Tightening specification: 30 Nm + 90°
    • Replace
    • Coat with hot bolt paste; Hot bolt paste.
  6. Intermediate Pipe
  7. Nut

    -- Tighten in three steps:

    -- Tighten to 10 Nm.

    -- Tighten to 30 Nm.

    -- Tighten an additional 90°.

    • Replace
  8. Seal
    • Replace
  9. Bolt
    • Replace
    • Coat with hot bolt paste; Hot bolt paste.