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E36 /7 Z3 (1996-2002)
E36/7 Z3 roadster and coupe talk with our gurus here.

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  #1  
Old 02-23-2013, 04:31 PM
Craig in Alabam Craig in Alabam is offline
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Location: Madison, AL
 
Join Date: Nov 2005
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Mein Auto: 98 Z3 2.8
what is this on my strut tower?

Hi Folks,

I've had my Z3 for a few months now and I finally got to spend some money on something I wanted istead of something I needed. I got a Strong Strut brace. Nice piece of work! Anyway, there are some small knurled knobs on top on my struts and I was wondering what their purpose is.

Cheers!

Craig
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  #2  
Old 02-23-2013, 04:35 PM
JackDuggan JackDuggan is offline
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Location: Fredericksburg, VA
 
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Mein Auto: 2001 Z3 3.0 Roadster
I think that's for jump starting the car; there should be on positive and one negative.
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Old 02-23-2013, 04:40 PM
Craig in Alabam Craig in Alabam is offline
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Mein Auto: 98 Z3 2.8
Hi Jack,

Sorry, I probably wasn't clear. I'm wondering about the black plastic knob in the center of the Stong Strut bracket. Some pictures of other Z3 struts don't have a cover over them. Mine has a cover with the knurled knob in the center.

Cheers!
Craig
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Old 02-23-2013, 04:45 PM
JackDuggan JackDuggan is offline
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OK, sorry, lots of people ask about the jumping terminals. The black thing in the center is just a plastic cap for your strut. I know that one because I just did struts on my 318ti and I misplaced one. It covers the locknut, I think to keep moisture out of the strut mount bearings. You can pop it out with a screwdriver, it goes right back in the same place.
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Old 02-23-2013, 04:59 PM
Craig in Alabam Craig in Alabam is offline
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Groovy! So I guess the black knobs just secure the cover? I was just curious, since some pics I've seen have them and some don't.

Thanks!
Craig
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Old 02-24-2013, 03:05 AM
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vintage42 vintage42 is offline
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Location: Louisville, KY
 
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Mein Auto: 1997 BMW Z3 1.9 5MT
Quote:
Originally Posted by Craig in Alabam View Post
... So I guess the black knobs just secure the cover? I was just curious, since some pics I've seen have them and some don't....
It is not really a knob, nor does it secure anything. It is just a cover for the big nut that secures the top of the strut in the strut bearing. It is a BMW part and comes on all the cars. If you don't see it on a car, it may have been lost, or the car may have been fitted with struts having adjustable resistance. I think Koni struts do have an actual adjustment knob on top.
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Old 02-24-2013, 05:39 AM
Craig in Alabam Craig in Alabam is offline
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Thanks Vintage!

Craig
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