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Home >> Volkswagen >> 2012 >> Passat TDI SE, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (3.6L - Exhaust System, Emission Controls - Engine Code: CDVB) >> 26 Exhaust System, Emission Controls >> Description And Operation >> Muffler Overview
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Muffler Overview

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NOTE:

After exhaust system installation work, ensure system is spaced far enough away from body. If necessary, loosen the double clamp on the front exhaust pipes and align the pipes again.

Do not use sealants containing silicone. Traces of silicone components which are sucked into the engine are not burned there, and they damage the oxygen sensors.

Replace the self-locking nuts.

Center and rear muffler, separating, refer to EXHAUST PIPE/MUFFLER, SEPARATING .

Fig 1: Identifying Muffler Overview
GWWN26-10747Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Center Muffler
    • Original equipment as one unit with the rear mufflers. If repair is necessary, replace separately.
    • Separating the exhaust system. Refer to EXHAUST PIPE/MUFFLER, SEPARATING .
  2. Clamping Sleeve
    • M8 nut - 25 Nm
    • M10 nut - 40 Nm
    • Installed position, refer to Figure.
    • Tighten the nuts evenly.
  3. Bolt
    • 23 Nm
  4. Suspended Mount
  5. Retaining Loop
    • Replace if damaged.
  6. Left Rear Muffler
    • Original equipment as one unit with the center muffler. For repairs, replace each separately.
    • Separating the exhaust system. Refer to EXHAUST PIPE/MUFFLER, SEPARATING .
  7. Bolt
    • 25 Nm
  8. Tunnel Brace
    • Observe the installed direction.
  9. Suspended Mount
  10. Bolt
    • 23 Nm
Fig 2: Center Muffler Mount To Underbody
GWWN26-10151Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

The suspended mount -2- is installed to the underbody in connection with the heat shield -3- and fuel tank tensioning strap -4-.

Tightening specification for the bolts -1- : 25 Nm.