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Go Back   E46Fanatics > E46 BMW > E46 Convertible

E46 Convertible
The E46 vert forum. Talk about dropping your E46 top here.

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Old 01-04-2015, 10:59 PM   #1
superchargedm3
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Convertiable lock fix, that horriable clicking noise

So guys I was looking to fixing my convertible because it was making a horrible clicking sound when putting the top down. The whole system to be replaced costs $1,100 brand new and about $200 used...... So I set out to fix it myself. I couldn't find much on this forum so I decided to investigate. Being a current mechanical engineering student at a top institution I felt that I should be able to tackle this no problem. I found that the reason for this clicking sound was the gears poping out due to the low downwards compression. This is due to the fact that the plastic top has clips on the side that over time become brittle. (This has been known on this forum I just never found how to solve the problem) so for you guys that don't want to pay $200 just do this.


Get two pipe fasterns, the bigger the better and slip them around the system. The tighten with a strong piece of metal to create a good parallel force perpendicular to the plastic top. Like so

Click image for larger version

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And that's it. Literally that's it.

Total investment = $4.85

Last edited by superchargedm3; 01-04-2015 at 10:59 PM.
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Old 01-05-2015, 12:26 AM   #2
taylor192
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Being a double engineering major I have a much more elegant solution. It involves a nut and bolt.

Total investment < $1

http://forum.e46fanatics.com/showthread.php?p=16446787
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Old 01-05-2015, 12:39 AM   #3
superchargedm3
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Convertiable lock fix, that horriable clicking noise

Wow I could not find that post when I looked... Lol

Last edited by superchargedm3; 01-05-2015 at 12:42 AM.
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Old 01-05-2015, 10:50 AM   #4
taylor192
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Quote:
Originally Posted by superchargedm3 View Post
Wow I could not find that post when I looked... Lol
:-)

I think this forum needs a sticky with links to the various DIYs for parts of the convertible top.
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Old 01-06-2015, 04:03 PM   #5
Apexeon
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I don't know Taylor192... You'd have a lot of posts stickied
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Old 01-11-2015, 08:00 PM   #6
Poncho@home
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I fashioned a very simlar fix last year when my top motor was clicking. I used steel banding, like this:
http://i01.i.aliimg.com/photo/v0/558...steel_304L.jpg

Cut to length, shaped it to the top and bolted it using the top motor bolts. I added a small washer to add more downwards pressure. Clean installation and used stuff I had laying around.

I am not an engineer
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Old 01-11-2015, 08:07 PM   #7
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Here is mine

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Old 01-16-2015, 09:26 AM   #8
Nickvjr
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Total Cost: $0.03 (metal was free scrap - black tie down out of bulk package)
Works great and took me about 5 minutes to install.
Click image for larger version

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Just in case the latch motor fails I got a replacement motor on stand by.
Click image for larger version

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Click image for larger version

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Old 01-16-2015, 01:30 PM   #9
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Quote:
Originally Posted by Nickvjr View Post
Just in case the latch motor fails I got a replacement motor on stand by.
The motor is not actually the problem. I would return that. This is why:

1. The motor drives a gear, and the gear is held in place by the plastic lid.
2. The plastic lid has clips that keep it attached, which wear out/break over time.
3. If the plastic lid is not held in place tightly, the gear slips, which is the "clicking" noise.

This is why the various hacks that push down on the plastic lid work, as it keeps the gear in place. The most effective fix is the bolt/nut that I posted. The bolt/nut installs in exactly the spot where the plastic lid clips fail, in the centre of the gear.
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Old 01-16-2015, 01:42 PM   #10
Nickvjr
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I didn't say that the motor was the cause of the clicking and I understand what the weak point is for the gearing under the plastic cover hence my repair.

Nevertheless I have a spare convertible top motor on the side much like I have spare coolant hoses, a spare water pump, a spare thermostat (these leak constantly), and other spare parts to keep my 330Ci Vert in tip top shape.

I don't want readers to think that the convertible top motor is the direct cause of the clicking noise that is common on our Verts due to the bad design and insufficient pressure of the convertible top gearing mechanism; hence I did not say that in my post.

I appreciate the information you provided on the faulty gearing mechanism and subsequent repair as I am sure other readers will find that information useful.
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Old 01-16-2015, 03:11 PM   #11
taylor192
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Originally Posted by Nickvjr View Post
I don't want readers to think that the convertible top motor is the direct cause of the clicking noise that is common on our Verts due to the bad design and insufficient pressure of the convertible top gearing mechanism; hence I did not say that in my post.
Then why mention the motor at all? It is not related to the clicking noise, not helpful to the discussion, and potentially confusing to people who are not familiar with the reason for the clicking noise.

Less is more sometimes.
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Old 02-10-2015, 07:24 AM   #12
Bigborgel
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Clicking Noise in Top

I have this same noise in the passenger side of my vert top. Where do I find the box that needs to be strapped? Thanks in advance.
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Old 02-10-2015, 10:00 AM   #13
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Its located under the rear seat.
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