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This is good but maybe not perfectly clear on the torqueing of the fasteners. Here is something I posted on the E90 forum on a related discussion:
Quote:
Remember to:
• Make sure thread bores, bolts, nuts and mating surfaces are clean.
• Install bushing end of control arm to subframe using new fasteners.
Do not tighten nut at this time.
• Install control arm ball joint to steering knuckle using new selflocking nut. Tighten fully.
• Install ride height sensor link rod to control arm (if applicable).
• Install wheel and lower car.
• Tighten bushing end of control arm to subframe with car on ground and loaded. Bounce suspension a few times before final tightening.
Endquote
The quote above is for the control arm but the tension strut instructions are essentially the same.
Another point worth noting is check what grade of nuts and bolts you have. I had grade 10 nuts for the subframe nuts and bolts so torqued accordingly (from Bentley). Then I thought I'd take a second look at everything and had an 'aw shit' moment when I saw the bolts were grade 8. So I had overtorqued them. This worried me enough that I parked the car and ordered new nuts and bolts and changed them out. At $50+ screw up!!
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