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Thread: Soft top STOPS just after tonneau unlatch

  1. #1
    Join Date
    Mar 2005
    Location
    italy
    Posts
    289
    My Cars
    Z3 M44 roadster 1997

    Soft top STOPS just after tonneau unlatch

    Hi all, this morning trying to open the top, all went well. Detached front hooks, rear soft top part (the one with rear mirror) went up.

    Then the tonneau had to be unlatched. I heard the motor running more than 10 seconds. Then the hooks of the tonneau detached with the typical 'clunk', but then the top stopped working. I can move it by hand, but it doesn't operate to go up.

    If I manually re-attach the tonneau hooks and stop/start the car, luckily the top can be closed regularly, so I didn't have to move it manually.

    Made the operation 6/7 times: always stopped in that position and operation. Rear hooks detach after 10 seconds or more, then all stop.


    Sensor? Motor under cover? The strange thing is the long time to wait to detach the rear hooks, then nothing. Never read something similar...I've read about top stopping halfway due to sensor, rear hooks NOT unlatching (not my case), but nothing about it.

    Ps i can smell some heating taste in the trunk, maybe due to a lot of up and downs making tests...oil in that pic is with top half opened, so I don't know if is enough or not.


    image uploader
    miss ZUKU!

  2. #2
    Join Date
    Mar 2005
    Location
    italy
    Posts
    289
    My Cars
    Z3 M44 roadster 1997
    PS: the motor doesn't starts at all after the rear hooks unlatch. Do I have to verify it first? Maybe the sensor is faulty?
    miss ZUKU!

  3. #3
    Join Date
    Mar 2016
    Location
    Portland, OR
    Posts
    712
    My Cars
    2002 325Ci Cabriolet
    Quote Originally Posted by resunoiz View Post
    Sensor? Motor under cover?
    Guessing is never a good start to fixing these issues. You need to read the stored fault codes in the CVM. I use PA Soft and a Winsdws XP laptop to do this. There are other applications as well.

  4. #4
    Join Date
    Mar 2015
    Location
    west chicago il
    Posts
    509
    My Cars
    01 E46 330i 5sp man spor
    Check the wire harness that runs along the top frame on the driver side. The wires break at the pivot points where they flex every time you open the top

    Sent from my SAMSUNG-SM-G870A using Tapatalk
    Last edited by randy72877; 02-03-2018 at 05:51 PM.

  5. #5
    Join Date
    Mar 2005
    Location
    italy
    Posts
    289
    My Cars
    Z3 M44 roadster 1997
    I've read of wires breaking in that point.

    BUT that issue won't be related at the top movement? My issue starts when the tonneau have to move, the soft top operates reguarly till that moment. Or there are some tonneau motor-related wires in that position too?
    miss ZUKU!

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