Removing rear muffler

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Lower fastening points for the removal and installation of the rear muffler

1 = Double clamps
2 = Clamps on rear muffler connection
3 = Retaining plates on catalytic converters
4 = Retainer on transmission bracket at the bottom
5 = Fastening point for holder on rear muffler (hexagon nuts)

Fig 1: Locating Rear Muffler Fasteners (Automatic Transmission, As Of MY 2000)

Courtesy of PORSCHE OF NORTH AMERICA, INC.

Remove exhaust pipes at the sides. To do this, open the double clamping sleeves by undoing the hexagon nuts M8 (a/f 13) -arrows- and moving them towards the catalytic converter. If necessary, pry the clamps apart and then move them. If there is corrosion, removing the exhaust pipes and clamps is made easier by heating.

Fig 2: Removing Exhaust Pipes (Automatic Transmission, As Of MY 2000)
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Open the clamp on the rear muffler connection by undoing the hexagon nut (a/f 15) -arrow- and push it onto the exhaust pipe. See Fig 3 . Pull the exhaust pipe with twisting movements out of the connection and remove it.

Fig 3: Removing Rear Muffler Connection (Automatic Transmission, As Of MY 2000)
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Detach the two retaining plates on the catalytic converters left and right -3- and the bottom holder on the transmission bracket -4- . See Fig 4 . To do this, unscrew the four hexagon-head bolts M8 and two hexagon nuts M8 and remove the retaining plates and threaded plate respectively. For better access to the top collar nuts, the holder can be removed by undoing the hexagon nuts M8 -5- .

Fig 4: Detaching Retaining Plates On Catalytic Converters, Bottom Holder On Transmission Bracket (Automatic Transmission, As Of MY 2000)
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Remove the main catalytic converter on the right-hand side, see also REMOVING AND INSTALLING CATALYTIC CONVERTER .
Remove the two top hexagon collar nuts M8 (a/f 13) on the transmission bracket -arrows- .

Fig 5: Removing Top Hexagon Collar Nuts (Automatic Transmission, As Of MY 2000)
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NOTE: When lifting out the rear muffler the assistance of a second person is recommended to avoid damage to the rear apron and injury due to the muffler being dropped. Place the muffler on a transmission jack!
Push rear muffler towards bumper and press the retaining plate back between the studs -arrow- to guide the studs out of the transmission bracket. Carefully tilt the rear muffler downwards, and with the help of a second person remove it past the rear apron.

Fig 6: Pushing Rear Muffler Towards Bumper And Pressing Retaining Plate Back (Automatic Transmission, As Of MY 2000)
Courtesy of PORSCHE OF NORTH AMERICA, INC.