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      07-15-2011, 04:02 PM   #1
persian54
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Where to safely jack up?

Other than the jack points on the side, where is it safe to jack from directly underneath the car?

I used to have a photo from BMW for my e93 335i, but I can't see to find it for the M3?

I'm guessing the black thing there? (front of the car)


Rear:

Maybe from the black bars? (I think these are only e93 specific though?)
or maybe the gray box? (which I'm 99.999% sure is the rear diff

Thank you~
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      07-15-2011, 04:36 PM   #2
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gray box is the diff... i have jacked it from there before but felt very unsure.

i wouldn't do the bars cause they may bend under extra pressure.
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      07-15-2011, 04:54 PM   #3
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Here's what i had before:




Since ^ lifted it using the diff before... what's the possible damage? If the car wasn't really lifted up much, there shouldn't be any damage right?
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      07-15-2011, 05:15 PM   #4
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ezcarlift.com - problem solved
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      07-15-2011, 06:01 PM   #5
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Quote:
Originally Posted by ThunderMoose View Post
ezcarlift.com - problem solved
damn 2k...
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      07-15-2011, 06:05 PM   #6
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Originally Posted by persian54 View Post
damn 2k...

I recommend you find a "do it yourself auto mechanic shop" like the following link ...

http://www.dityautorepair.com/
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      07-15-2011, 06:15 PM   #7
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Quote:
Originally Posted by Rolf-Dieter View Post
I recommend you find a "do it yourself auto mechanic shop" like the following link ...

http://www.dityautorepair.com/
that would be tight


When I build my home, I'll try to and install a lift if I can
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      07-15-2011, 06:16 PM   #8
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Quote:
Originally Posted by Rolf-Dieter View Post
Quote:
Originally Posted by persian54 View Post
damn 2k...

I recommend you find a "do it yourself auto mechanic shop" like the following link ...

http://www.dityautorepair.com/
Omg I've been searching all over for that. Wish they have em in California. can't believe there isn't one here
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      07-15-2011, 06:26 PM   #9
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Originally Posted by richpuer View Post
Omg I've been searching all over for that. Wish they have em in California. can't believe there isn't one here
One way to handle that is to build one then looks like a brilliant business opportunity if there is none in your area

Another way would be to find fellows that rebuild old cars, they do have a shop facility most of the time.

just thinking out loud
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      07-15-2011, 08:15 PM   #10
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Quote:
Originally Posted by persian54 View Post
damn 2k...
You can get it for a bit cheaper. I looked around and this one seemed to be the best value. There were some cheaper lifts, but you had to run 220 V to some and others took up a lot of space. The EZCarLift disassembles in about 10 minutes and I can store under my 4 x 8 work bench. It assembles in about 10 minutes and about 10 minutes after that I have the car lifted. I use some adapters from ECS for the 4 lift points, but I think hockey pucks work as well.

And it's rock solid. I have powdercoated 359M's that tend to fuse to the hub and it takes a bit of effort to get them off, but the lift doesn't wobble.
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      07-15-2011, 10:09 PM   #11
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Quote:
Originally Posted by Rolf-Dieter View Post
Quote:
Originally Posted by richpuer View Post
Omg I've been searching all over for that. Wish they have em in California. can't believe there isn't one here
One way to handle that is to build one then looks like a brilliant business opportunity if there is none in your area

Another way would be to find fellows that rebuild old cars, they do have a shop facility most of the time.

just thinking out loud
U kno , I immediately thought of it right when I couldn't find one here...then I got to thinking, are there enough people like me who don't want their cars worked on by strangers and would rather do it themselves?? There is definitely demand, but, will it be enough to pay the bills...I'm thinking the majority of folks just go to their guy....anyhow, it is interesting
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      07-16-2011, 04:34 AM   #12
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so instead of buying one of those things...can someone please tell me where to safely jack the car up front from under it..?
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      07-16-2011, 07:26 AM   #13
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Quote:
Originally Posted by persian54 View Post
so instead of buying one of those things...can someone please tell me where to safely jack the car up front from under it..?
I assume you found the front central jacking pad. In the rear, you can jack from the differential, but not the finned aluminum cooling portion. There is a flat section forward of the aluminum portion that will accommodate your jack saddle, or a small wood block. This is not the easiest place to see or get to, and you will first need to drive the car on some small ramps or risers of some sort. I use four small ramps made from two layers of 2X12 planks, raising the car about 3". That allows sufficient space to place the jack first under the front jacking point, raising it enough to place two jack stands under the two front side jacking points. Then you can jack from the differential location and place the two rear jack stands.
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Last edited by elh0102; 07-16-2011 at 10:38 AM.
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      07-16-2011, 02:05 PM   #14
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Quote:
Originally Posted by elh0102 View Post
I assume you found the front central jacking pad. In the rear, you can jack from the differential, but not the finned aluminum cooling portion. There is a flat section forward of the aluminum portion that will accommodate your jack saddle, or a small wood block. This is not the easiest place to see or get to, and you will first need to drive the car on some small ramps or risers of some sort. I use four small ramps made from two layers of 2X12 planks, raising the car about 3". That allows sufficient space to place the jack first under the front jacking point, raising it enough to place two jack stands under the two front side jacking points. Then you can jack from the differential location and place the two rear jack stands.
so the flat-ish gray part of the diff is okay to use?
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      07-16-2011, 02:09 PM   #15
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please post pics once you get it jacked. I am interested on how it looks.
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      07-16-2011, 07:17 PM   #16
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Quote:
Originally Posted by persian54 View Post
so the flat-ish gray part of the diff is okay to use?
This is not a good process by written directions. If by flat gray part you are referring to the rear portion of the diff which contains the cooling fins, no, that is not the location I suggest. I remember the diff housing being black, not gray, but I haven't been under the car lately. But, it is forward of where the axle shafts connect, not visible from the position from which the photo was taken. If you are inexperienced in this type thing, please get some on-site instruction from a competent tech.
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      07-17-2011, 01:37 AM   #17
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Quote:
Originally Posted by elh0102 View Post
This is not a good process by written directions. If by flat gray part you are referring to the rear portion of the diff which contains the cooling fins, no, that is not the location I suggest. I remember the diff housing being black, not gray, but I haven't been under the car lately. But, it is forward of where the axle shafts connect, not visible from the position from which the photo was taken. If you are inexperienced in this type thing, please get some on-site instruction from a competent tech.
You remember correctly, the diff housing is painted black. I asked a master tech at the dealership where to use a floor jack to lift the rear of the car and he showed me to place the lifting pad of the jack under the black portion of the diff.
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      07-17-2011, 02:43 AM   #18
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Can anyone take a picture and show us...?

I use the jack points on the side but I would like to know for future reference

Also, what would happen if one were to use a wrong spot to jack up?
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      07-17-2011, 07:02 AM   #19
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Quote:
Originally Posted by persian54 View Post
Can anyone take a picture and show us...?

I use the jack points on the side but I would like to know for future reference

Also, what would happen if one were to use a wrong spot to jack up?
Well, there are a few acceptable points, and a bunch of "wrong" ones, so the potential damaging results are many. But again, although not a factory "recommended" location, the main diff housing is widely accepted by most techs and owners. If you are lifting the rear only, just be sure to block the front, since the car will roll with the rear lifted. If raising both ends, lift the front first with the e-brake on to avoid the issue. I'll take a photo when I get a chance but, with all respect, if you need a picture of the differential housing to find it, you should probably get some local assistance.
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      07-17-2011, 03:14 PM   #20
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Quote:
Originally Posted by elh0102 View Post
But again, although not a factory "recommended" location, the main diff housing is widely accepted by most techs and owners.
Just remember to only lift the car from that location while allowing to place ramps under the rear tires or jack stands under the rear subframe elbows. Just to be on the safe side . I've lifted the car at that point many times, like a lot other owners with zero issues. Just don't lift the car from the fins themselves, but that's common sense. Put the jack under the solid area. You can look thru one of the rear wheels to get the location right .
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