Need help with front subframe removal - BMW M5 Forum and M6 Forums
E34 M5 Discussion 1988-1995 Sedan and Touring

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post #1 of 4 Old 17th June 2019, 05:42 AM Thread Starter
alpinerunner
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Need help with front subframe removal

I'm trying to remove the subframe for oil pump replacement. I have everything unbolted, the 6 bolts came out pretty easily. The left side alignment pin (part of the rear bolt) is stuck. I have the steering box out and I'm smashing a 2x4 with a 5lb flathead axe right in the middle of the valley where the power steering pump goes, right next to the alignment pin and it won't budge. I'm hitting it with all the force I can one handed and deforming the 2x4. Any tips? My next move is to sawzall between the frame rail and the subframe and cut the alignment pin off.
Attached is pic of the area in question.
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1990 M3 - Weekend/HPDE
1991 M5 - Weekend
2003 M5 - DD
2012 X5 35D - Wife/family car
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post #2 of 4 Old 19th June 2019, 04:44 AM Thread Starter
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Update: I ended up removing the unstuck side completely and just aggressively wiggled it back and fourth in all directions while wedging a screw driver in the stuck side. I won in the end.

1990 M3 - Weekend/HPDE
1991 M5 - Weekend
2003 M5 - DD
2012 X5 35D - Wife/family car
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post #3 of 4 Old 28th June 2019, 09:23 PM
SimonLM
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Removing them is a real mare, the 2 lugs seem to fuse together and won't let go, i broke on on mine and had to drill out from the leg and get a new collar turned and welded onto the subframe, how much damage did you do before wiggling it free ?
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post #4 of 4 Old 29th June 2019, 07:09 AM Thread Starter
alpinerunner
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Quote:
Originally Posted by SimonLM View Post
Removing them is a real mare, the 2 lugs seem to fuse together and won't let go, i broke on on mine and had to drill out from the leg and get a new collar turned and welded onto the subframe, how much damage did you do before wiggling it free ?
Simon, I got lucky. Greg from AAS warned me about this tactic so I was very wary of “ripping it up” however it was the only way to get the guide pin out. It was rust free and solid. I reassembled with anti-seize just in case.

1990 M3 - Weekend/HPDE
1991 M5 - Weekend
2003 M5 - DD
2012 X5 35D - Wife/family car
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