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

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Old 04-18-2016, 07:19 PM   #1
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Join Date: Oct 2014
Location: Cary NC
Posts: 41
My Ride: 2002 M3 Vert
Soft Top Cover Won't Lift - Pulled INPA Codes

Car: 2002 E46 M3

Symptoms: Over the last couple of months, the top cover would occasionally not lift, but a car restart would fix the problem. As of this weekend, top cover will not lift, and top stuck in down position.

Exactly what it does: Top cover unlocks from both sides, but does not rise. Top cover will relock correctly.

INPA shows the lock sensors appear to be working correctly. If I manually raise the top cover, I can see the top cover "up" hall effect sensor change states. However, the fabric top does not lift if I hold the top cover in the up position, and hold the open button at the same time.

Most of the broken / cut wire threads appear to be in regards to the fabric top to windscreen lock and sensors.

There were four errors stored in memory before I cleared them:

67 - Open Load on Unlocking / Locking - Frequency 2
84 - VPUMP, short to ground - Frequency 1
83 - VPUMP, not connected - Frequency 1
96 - Soft Top Flap Not Lifted - Frequency 6

Any further diagnostic thoughts?


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Old 04-18-2016, 08:57 PM   #2
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Join Date: Oct 2014
Location: Cary NC
Posts: 41
My Ride: 2002 M3 Vert
Was able to get it to close, by using the driver's door key comfort feature, and immediately raising the top cover when I felt the top cover unlatch. Something isn't right. Open to suggestions on possible causes. I've NEVER had it not put the top down and lift when the top cover in the opening sequence. Just in the raising the top sequence, when the top cover is the first maneuver.
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Old 04-18-2016, 10:00 PM   #3
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Location: The Best Place on Earth
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My Ride: 2003.5 M3
I'd start with the pump. The solenoid that controls the storage lid cylinders is attached to the pump as well. Then there's the relay above the pump.
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Old 04-19-2016, 05:28 PM   #4
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Join Date: Jan 2014
Location: San Jose
Posts: 121
My Ride: 2003 E46 Convertible
You could try the relay first, really easy to get to and cheap to replace. My top was exhibiting the same problem and it was the relay.

The relay part# is 54347025596.
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Old 04-19-2016, 07:18 PM   #5
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Join Date: Oct 2014
Location: Cary NC
Posts: 41
My Ride: 2002 M3 Vert
Odd, in that it went down fine after work tonight, and back up fine when I pulled into the garage. Intermittent issues are the worst.

Thanks for the suggestions so far.
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