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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 02-13-2006, 10:59 AM   #1
lhuy2733
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Coilover help!!!

Ok guys, just had a set of H&R Coils installed today.

Both rear springs are set at lowest, but ive noticed that the drop on each side isnt level, I guess the logical thing to do is to adjust one side until it is level.

But what would cause one side to be higher than the other when both are at equal settings?

And how do we make sure the car is perfect at all points? are there any specific points on the car that we can measure at to ensure its 100% even on both sides? or do we just pick random points and use them as a reference?

say for instance we measure 10cm from side skirt to ground on one side and repeat that on the other? my question is for those that have installed coils...
what is the best way to make sure the drop is equal on both sides? is there a special method? or just guess and check at certain points on the car? and where is the best place to measure the car? i think a driveway is pretty flawed in determining how level a car is...

I ask this because i was just curious today and just shoved my mobile under the car under the side skirt and it fit just under it on one side but had a gap of almost an inch on the other... freaked me out!

HELP guys....

TIA
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Old 02-13-2006, 12:31 PM   #2
leej323
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If all the settings are the same like you said, it could be that your suspension isn't "seated" yet. Try driving the car around the block and going over a few small bumps to see if that levels out the suspension.
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Old 02-13-2006, 04:53 PM   #3
lhuy2733
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well i did this check afterabout 100km of driving to make sure everything settled.
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Old 02-14-2006, 01:16 AM   #4
leej323
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The best thing I can recommend is corner balancing and an alignment at a good suspension shop. They will set the ideal heights at each corner to get the most even weight distribution. The setting they choose will most likely NOT be the lowest setting on your coilovers. So keep that in mind if you're just looking for a nice drop. And if you got coilovers just to achieve the "ultimate drop" I'm not sure what to tell you...
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Old 02-14-2006, 11:43 AM   #5
rayxi
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Quote:
Originally Posted by lhuy2733
And how do we make sure the car is perfect at all points? are there any specific points on the car that we can measure at to ensure its 100% even on both sides? or do we just pick random points and use them as a reference?

say for instance we measure 10cm from side skirt to ground on one side and repeat that on the other? my question is for those that have installed coils...
what is the best way to make sure the drop is equal on both sides? is there a special method? or just guess and check at certain points on the car? and where is the best place to measure the car? i think a driveway is pretty flawed in determining how level a car is...
Standard way to measure ride height is from the top (inside) of the wheel well to the center of the hub. This way the measurement is independent of tire pressure and wheel/tire size differences. BMW calls for ride height measurements to be done with the car ballasted but that shouldn't affect the side to side comparison.

Is the low side low at both the front and rear relative to the corresponding measurement on the high side?

Check to see if the low corner is missing a spring pad.
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Old 02-14-2006, 12:33 PM   #6
WishIHadAStick
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How much of a difference are we talking about? Inches? Fractions of an inch?
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Old 02-14-2006, 11:26 PM   #7
lhuy2733
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10mm higher on passenger side.
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