Transmission mount replacement on a 1999 Saab 9-5.

Tools:

  • 18 mm socket (upper nut);
  • 13 mm socket (battery clamps, mount bolt);
  • 13 mm wrench (mount bolt);
  • 12 mm socket (battery bracket);
  • 10 mm socket (battery support);
  • Torx T40 socket (index screw);
  • socket extension;
  • torque wrench;
  • hydraulic jack.
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Battery

Undo the nuts on the battery clamps and disconnect the leads. Remove the bracket on the side and lift the battery.
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Battery support

Unscrew the battery support. It's usually held by 2 to 4 small bolts (10 mm), and could be mounted straight or sideways.
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Mount

The mount is right under the battery, held by a couple of bolts.
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Jack

Before removing the mount, support the gearbox from below using a jack.
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Centre nut

Undo the big nut in the middle. The engine might sag some more, make sure the jack is holding up. Remove the Torx index screw.
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Mount bolts

Unbolt the mount from the frame. The front bolt is easy, the one in the rear is blocked by some wires and hoses - use a spanner to reach it.
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Removed

Remove the mount. The engine may shift suddenly after the mount is lifted, watch your fingers!
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Old vs new

You can see the crack on the left side of the old mount. The new version is beefier, and has a provision for a third bolt used on later cars.
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New mount

Insert the new mount. You may need to pump the jack up some more and rock the engine back and forth to get the mount to seat properly.
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Index screw

First, fit the Torx index screw to make sure the mount is positioned correctly. Tighten the upper nut to 62 ft-lbs.
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Mount bolts

Tighten both mount bolts to 35 ft-lbs. Remove the jack.
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Battery support

Re-install the battery support, the battery itself, tighten the bracket and connect the leads.

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