Control Arm Torque specs?
06-24-2012, 10:44 AM
#1
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Hey guys,
I'm looking to change both left and right lower control arms in the near future, and after reading a few DIYs on it I think I can do it.... but here's what I need to know:
1) What are the torque specs for each side?
2) Can I reuse the same nuts/bolts as the old, or should I get new ones?
3) Does the car need to be on the ground to fully tighten the arms? If so, how the hell can I do that on a car with sport package? lol
Thanks
I'm looking to change both left and right lower control arms in the near future, and after reading a few DIYs on it I think I can do it.... but here's what I need to know:
1) What are the torque specs for each side?
2) Can I reuse the same nuts/bolts as the old, or should I get new ones?
3) Does the car need to be on the ground to fully tighten the arms? If so, how the hell can I do that on a car with sport package? lol
Thanks
06-24-2012, 04:05 PM
#2
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What parts are you referring to? Many people incorrectly use the wrong names for parts. This is probably because BMW continually changes the names of their parts with each chassis. So I assume you're talking about the Tension Strut (aka control arm)? in my DIY ? lol
https://5series.net/forums/topic/107...rut-wishbones/
1) I never use torque wrench, I know the torque specs are pretty tight and probably as tight as you can go anyway before the nut locks up.
2) Yes you can reuse the same nuts bolts as long as they are not damaged.
3) It's doesn't need to be. I'll explain. If you understand the mechanics of the tension strut it moves anyway. so if you tighten and move the suspension up/down you will see that the arm moves too, so it really doesn't matter. But if you want to do that, you can tighten a bit then drive it up ramps or while on a jackstand place a jack with wood underneath the tire and press it up.
https://5series.net/forums/topic/107...rut-wishbones/
1) I never use torque wrench, I know the torque specs are pretty tight and probably as tight as you can go anyway before the nut locks up.
2) Yes you can reuse the same nuts bolts as long as they are not damaged.
3) It's doesn't need to be. I'll explain. If you understand the mechanics of the tension strut it moves anyway. so if you tighten and move the suspension up/down you will see that the arm moves too, so it really doesn't matter. But if you want to do that, you can tighten a bit then drive it up ramps or while on a jackstand place a jack with wood underneath the tire and press it up.
06-25-2012, 08:34 AM
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What parts are you referring to? Many people incorrectly use the wrong names for parts. This is probably because BMW continually changes the names of their parts with each chassis. So I assume you're talking about the Tension Strut (aka control arm)? in my DIY ? lol
https://5series.net/forums/topic/107...rut-wishbones/
1) I never use torque wrench, I know the torque specs are pretty tight and probably as tight as you can go anyway before the nut locks up.
2) Yes you can reuse the same nuts bolts as long as they are not damaged.
3) It's doesn't need to be. I'll explain. If you understand the mechanics of the tension strut it moves anyway. so if you tighten and move the suspension up/down you will see that the arm moves too, so it really doesn't matter. But if you want to do that, you can tighten a bit then drive it up ramps or while on a jackstand place a jack with wood underneath the tire and press it up.
https://5series.net/forums/topic/107...rut-wishbones/
1) I never use torque wrench, I know the torque specs are pretty tight and probably as tight as you can go anyway before the nut locks up.
2) Yes you can reuse the same nuts bolts as long as they are not damaged.
3) It's doesn't need to be. I'll explain. If you understand the mechanics of the tension strut it moves anyway. so if you tighten and move the suspension up/down you will see that the arm moves too, so it really doesn't matter. But if you want to do that, you can tighten a bit then drive it up ramps or while on a jackstand place a jack with wood underneath the tire and press it up.
Thanks for your help!
06-25-2012, 11:36 AM
#5
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Brand is your choice. Try http://www.rockauto.com
Dorman are usually cheap and I haven't had any problems with them on other cars in the past but it's up to you.
Dorman are usually cheap and I haven't had any problems with them on other cars in the past but it's up to you.
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