Front Lower Control Arms

[andrewwynn]

RealOEM refers to the control arm as the wishbone.

BMW in the TIS refers to the sideways arm as both the control arm and the wishbone.

BMW refers to the mostly forward arm as the tension strut or the radius arm but never control arm.

Unfortunately sales pages will add or exchange words so for example fcpeuro will call them tension strut and control arm, the 4 piece kit with both calls all four control arms. Don't tell bad if you ever get them confused there is a lot of misinformation out there on these particularly parts.

Back to the original question though: fcp Euro has the control arm bushing for $8.40. Also I bumped into the TIS how to press out the bushing as well.

The problem with that is it's very likely the problem is on the other end (ball joint).

To eliminate any confusion I refer to the two suspension arms as such:

1) sideways wishbone control arm

2) forward angled tension strut.

There is no mistaking forward and sideways. Only one is remotely forward aimed one is almost exactly sideways.

I have changed these a couple times between our two e53 and have not had any major hiccups save the tie rod being fused and nearly impossible to do the alignment afterwards.

I don't think you can change the ball joint on this part and that is usually where they fail for me: boot fails, grease leaves, joint dies.

[KalahariBX5]

thank you this all makes sense. and it is the ball joint end I'm dealing with so I'll be replacing the whole part

[upallnight]

Originally Posted by andrewwynn

RealOEM refers to the control arm as the wishbone.

BMW in the TIS refers to the sideways arm as both the control arm and the wishbone.

BMW refers to the mostly forward arm as the tension strut or the radius arm but never control arm.

Unfortunately sales pages will add or exchange words so for example fcpeuro will call them tension strut and control arm, the 4 piece kit with both calls all four control arms. Don't tell bad if you ever get them confused there is a lot of misinformation out there on these particularly parts.

Back to the original question though: fcp Euro has the control arm bushing for $8.40. Also I bumped into the TIS how to press out the bushing as well.

The problem with that is it's very likely the problem is on the other end (ball joint).

To eliminate any confusion I refer to the two suspension arms as such:

1) sideways wishbone control arm

2) forward angled tension strut.

There is no mistaking forward and sideways. Only one is remotely forward aimed one is almost exactly sideways.

I have changed these a couple times between our two e53 and have not had any major hiccups save the tie rod being fused and nearly impossible to do the alignment afterwards.

I don't think you can change the ball joint on this part and that is usually where they fail for me: boot fails, grease leaves, joint dies.

Au Contraire Mon Ami, I posted the Realoem Diagram for a X5 E53 front suspension and the part in the diagram is identified as the "Tension Struts".

If you look at the "Tension Strut" that you bought from me, you will note that they did not come with ball joints. The ball joint remained with the spindle/upright. These balljoints can be replaced.

[andrewwynn]

Originally Posted by upallnight

Au Contraire Mon Ami, I posted the Realoem Diagram for a X5 E53 front suspension and the part in the diagram is identified as the "Tension Struts".



If you look at the "Tension Strut" that you bought from me, you will note that they did not come with ball joints. The ball joint remained with the spindle/upright. These balljoints can be replaced.

Don, only you are stuck on the tension strut being part of this thread. It was determined early on that the part in question in this thread is the wishbone control arm.




True the tension strut does not have a ball joint as part of it's assembly but the control arm/wishbone does and I don't think it's removable.

Everybody else is only talking about the sideways facing rear of the axle control arm with the integrated ball joint.

[crystalworks]

Originally Posted by andrewwynn

Everybody else is only talking about the sideways facing rear of the axle control arm with the integrated ball joint.

He's not the only one. Thought we were talking tension strut too. Sorry fellas.

I've always referred to that rearward one as the control arm. I've also seen it called a lower wishbone for some reason. Oldskewel is right, TIS is notorious for using different naming schemes when looking up torque values. When doing the E70 front suspension I had to make a diagram for myself to keep it all straight.

[upallnight]

Originally Posted by andrewwynn

Don, only you are stuck on the tension strut being part of this thread. It was determined early on that the part in question in this thread is the wishbone control arm.




True the tension strut does not have a ball joint as part of it's assembly but the control arm/wishbone does and I don't think it's removable.

Everybody else is only talking about the sideways facing rear of the axle control arm with the integrated ball joint.

Au Contraire Mon Ami

This is what the OP posted

Originally Posted by KalahariBX5

No I am talking about the front lower control ams.

The definitive word being "Front Control Arm".

The item you have listed No. 10 is at the REAR of the suspension.