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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > alignment question



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      09-03-2013, 03:09 PM   #1
patrickguu
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alignment question

hey guys my car is lowered on H&R sport spring and koni yellow shocks. I went to a shop and they said i needed 150 pound weight on driver and passenger and 31 pounds in the trunk to get an alignment.. is this true?
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      09-03-2013, 03:51 PM   #2
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no.
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      09-03-2013, 03:55 PM   #3
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Not needed, just shows that the shop only know what the computer says and thats it.
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      09-03-2013, 03:57 PM   #4
JamesM3M5
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Yes, according to the BMW alignment specs, the cars must be weighted down. Do they not have weights and sand bags for this purpose? If not, find a better shop. Is it perfectly OK to do without it, but you may not get the results you want.

For a street and/or track car that you drive by yourself all the time alone, you can simply align with driver weight in the seat and a full tank. For race cars, I align and corner balance with driver weight and at least 75% fuel load.
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      09-09-2013, 09:48 AM   #5
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Quote:
Originally Posted by JamesM3M5 View Post
Yes, according to the BMW alignment specs, the cars must be weighted down. Do they not have weights and sand bags for this purpose? If not, find a better shop. Is it perfectly OK to do without it, but you may not get the results you want.

For a street and/or track car that you drive by yourself all the time alone, you can simply align with driver weight in the seat and a full tank. For race cars, I align and corner balance with driver weight and at least 75% fuel load.
BMW no longer requires this if done at a BMW dealer since the alignment software automatically adjust the alignment settings based on measured ride height. Most shops thyat have newer racks and software will not require weighting either.
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