2240310 1972 BMW 3.0cs

Probably need to drop the entire front subframe and replace all the bushings, especially the front strut rod ones. Maybe do this twice so as to assure reliability...:cool:
The refresh of the front end and engine compartment (about 4k miles ago) included all new suspension components. I have checked and all of them are tight and in good shape still.

The strut rod bushings are an absolute bitch, made worse by the powder coating of the sub-frame which reduced the inside diameter of the bushing holes / mounting points.
 
The strut rod bushings are an absolute bitch, made worse by the powder coating of the sub-frame which reduced the inside diameter of the bushing holes / mounting points.
I KNOW, which is why I suggested doing them twice! That that doesn't kill you makes you stronger!! :p

(In case you missed it, I was joking...)
 
I checked with Koni about rebuilding the units that I had taken off (part number was slightly different: 82P-1667 stamped as heavy turn) and they referred me to their approved re-builder. The re-builder in Sonoma CA quoted $450 per unit, plus any hard parts that might be damaged or too heavily worn. Unfortunately it just does not make sense to go that route.

Bilsteins ordered for the front, will worry about the back when I do the full tear-down. Meanwhile I pulled the driver's side (side with the problem apart and removed the strut.
 
I did reach out to Koni again this morning and this time they responded quickly. Their reply:

"Thank you for contacting us here at KONI NA. Unfortunately, the KONI Sport shocks for the BMW 3.0cs are no longer available as they have been discontinued for several years now. The old part numbers were 86 1667 for the front strut inserts, and 80 2092 for the rear shocks. "

@Breiti, did you buy them new recently? If so, were these the part numbers?
I bought them newly last year, but that source isn't available.

Breiti
 
Thanks guys, I received the Bilstein struts yesterday and started to fit today and will stick with them.

The blue books say to add 50ml of oil to the tubes to aid in heat dissipation. I did add the oil with the last set of inserts and I drained the oil and re-filled before inserting the Bilstein inserts and found that I was unable to bottom out the struts with the oil in place due to the flat bottom construction of the struts (hydro-lock). I was able to install the struts with the collar nut at the proper torque without oil in the tubes.

I imagine that strut construction has evolved sufficiently that oil is no longer needed.
 
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