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Old 10-16-2012, 06:15 PM   #15
Mango
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Join Date: Mar 2006
Location: Southern California
Posts: 22,561
My Ride: M54B30
Quote:
Originally Posted by Zell View Post
Front:

- Chock both rear wheels. You also have a wheel chock in the back of your trunk
- Use factory jack, or another floor jack preferably, to lift up the front end slightly, just enough to get a jack + wood under the car. This can also be accomplished by driving the car on a 2x4, or even ramps.
- Place a block of wood on the jack to distribute weight, put it directly under the frame rail. You'll know what it is when you see it, it runs most of the length of the vehicle. There is one on each side.
- Jack to desired height
- Place jack stand under rubber jack point
- Lower car onto jack stand
- Repeat on other side

Rear:

- Chock both front wheels
- Look for large U-brace in front of differential
- Place a block of wood, or a rubber pad of some sort, onto jack
- Jack directly on U-brace to desired height
- Place jack stands under factory rubber jack points
- Slowly lower onto jack stands

Getting the car off jack stands is the reverse of the above.

I've done this many times and have had no damage whatsoever. Nothing is bent, everything is good, and I've inspected them thoroughly to make sure. The car can be supported by those frame rails. In fact, the Bentley manual mentions those as valid safe jack points in a few places. Remember, weight distribution is important. It is not ideal to have all the weight on one part of the rail, even though I am sure it can support it. A big block of wood to distribute it is always best.
I know you don't mean harm but do not ever jack up the car from the aluminum reinforcement near the differential. It should be lifted from the subframe body itself. As far as the rest of the points go, only the four jack pads around the perimeter of the vehicle. TIS reinforces this.

Under no circumstances should you lift the car by the "frame rails." Those aren't really rails, but merely boxed sheet metal. They're not meant to support the weight in the car in one spot as they aren't reinforced/designed for that purpose. Any creased/boxed sections contribute to the overall structural integrity of the vehicle and are not meant for lifting purposes. You can easily poke a hole through your floor pan if you do this, ,especially if the jacking area is small (like a small auto parts store chinese jack)
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