Every single CSL I've measured have had the left rear quarter sitting high - it's normal.
The factory allows a 10mm tolerance between left and right side.
Remember these cars were engineered to be left hand driven, so it is normal for the left hand side to be sitting a couple of mm higher.
What you might be seeing is the swaybar binding and holding one side up more compared to the other. What I would do is check the U bushings on the sway bar mount to make sure one isn't worn out compared to the other and put some graphite grease in it to allow the bar to move.
Also measuring from the ground to the top of the arch isn't the correct way of measuring - tyre pressure difference could also cause it to be out completely. The correct way to measure (and it is how BMW measures) is from the bottom of the rim to the top of the wheel arch)
Stock spec is 610mm +/-10mm for the front and 600mm +/-10mm for the rear.
I've yet to measure a CSL that doesn't have a rear left sitting between 7 to 10mm taller compared to the right rear - NEVER (more if you have a light weight aftermarket muffler - the muffler alone can contribute to about 3mm difference)
The factory allows a 10mm tolerance between left and right side.
Remember these cars were engineered to be left hand driven, so it is normal for the left hand side to be sitting a couple of mm higher.
What you might be seeing is the swaybar binding and holding one side up more compared to the other. What I would do is check the U bushings on the sway bar mount to make sure one isn't worn out compared to the other and put some graphite grease in it to allow the bar to move.
Also measuring from the ground to the top of the arch isn't the correct way of measuring - tyre pressure difference could also cause it to be out completely. The correct way to measure (and it is how BMW measures) is from the bottom of the rim to the top of the wheel arch)
Stock spec is 610mm +/-10mm for the front and 600mm +/-10mm for the rear.
I've yet to measure a CSL that doesn't have a rear left sitting between 7 to 10mm taller compared to the right rear - NEVER (more if you have a light weight aftermarket muffler - the muffler alone can contribute to about 3mm difference)
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