power hood help???
Moderator: martauto
- brettE30cab
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i have a problem with my cab, just replaced the hood motor both motors have power to them but do not spin, the ecu/relay has power , switch has power just nothing happening at all, need help quick as my mate has just come round and now his roof will only go up!! whats happening? please dont refer me to e30 centre its miles away, need a quick fix
have you tried resyching it? you can only see the motors move without the mechanism connected if all the levers are in the right place. If you have all parts connected up and the motors clicked back into place the roof should be in the position where the bit that clips to the windscreen is released and pushed up and the rear bow is fully raised, from here with all connected it should be able to be lowered
- brettE30cab
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yeah we got nothing mate, from that position my mates roof only closes and does not go down, mine on the other hand does nothing at all at any stage, is there any fuses or relays hidden anyway? i had power to the horse shoe last week but now nothing at all.
- brettE30cab
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what levers are you refering to?
the ones that sit in the motors the oval shaped ones, basically to give power to the right motor at the right time they need to be in the right position but if all the mechanisms are connected with the motors popped back into place and the hood is in the resync position then something else must be wrong, are you getting current to both motors when the roof is in this resnc position as you should be cos from here you can either push up on switch to activate top motor or down to activate horseshoe motor, is the switch okay?
- brettE30cab
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switch is fine, i swapped it with my mates and it works, levers /bars are in the right place, power to motors, still nothing at all, would the roof or horse shoe move at all if its not re synched?
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Martinaston
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Is the cut out cable in the boot attached ? (cuts power if the boot is open)
There is NO nucleus.
- brettE30cab
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yep its attached, anyone know where the allen key bolt is located, apparently its used to lock the horse shoe while resynching
you need to have locked the horseshoe down with the allen key and clicked both top motors and horseshoe motors down otherwise it will not work. The horseshoe lockdown is on the left hand side of the horseshoe motor on the brown coloured metal bit, its a hole in the centre of this. I think you need to click the motor in first then lock the horseshoe down with the allen key, it turns about 1/4 turn not sure if its left or right but there is a bit of resistance (not too much though!)
- brettE30cab
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right il go check, not the flat screw head? does that adjust the micro switch? im not sure theres an actual allen key there, just seems like a round piece of steel poking out with a slight groove in it?
- brettE30cab
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just checked and inside the hole on the brown piece of metal theres no allen key, just a piece of round steel.

- brettE30cab
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cheers daved ive tried that link and cant seem to find this allen key bolt, inside the small hole is just a circular piece of steel, am i looking in the right place?

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this might help but you can download the full workshop manual from the links section

- brettE30cab
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Daved please excuse me for being an idiot, but I cannot find it in the links, I only need to know where the hex/Allen key is located then I can try resynching the poxy thing
this is the links section
http://www.e30zone.net/modules.php?name ... ink&cid=12
and it does say in the top left of the pic I posted "insert centering pin"
http://www.e30zone.net/modules.php?name ... ink&cid=12
and it does say in the top left of the pic I posted "insert centering pin"

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sideshowbob
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Sorry to hi jack the link, but this is exactly why I converted my electric mechanism to manual. The electric system is a poor design and the horseshoe motor drive and linkage is from an engineering point of view diabolical....surprised it ever worked in the first place. The weight of that horsehoe being pushed up and pulled down by that small motor and via that bizarre leverage system is unbeleivable.
Thank God BMW didn't design the rest of the car on the same principles.
Thank God BMW didn't design the rest of the car on the same principles.
- brettE30cab
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probably a valid point , but as its all there i wanna get the thing working, someone please tell me theres an on switch somewhere!!! still cant find this allen key bolt, i know how to drop the motors and lock them again but following the link for resynching the motors it refers to this poxy bolt which locks the lid, your supposed to lock the lid and push the lid motor in at the same time, where the f**k is this allen key bolt?????????????????????????
- brettE30cab
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On my car there is no Allen key bolt inside that small hole, just a piece of flat metal. Is this not normal?
- brettE30cab
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If there is no Allen key bolt then why would you need an Allen key? Just turning an Allen key inside the hole isn't going to turn anything in the motor is it?
I'm with Brett on this one... I have no Allen key hole either! Just the back-end of the shaft of the lid-operating gizmo, which actually protrudes through the brown metal removable shroud. Very frustrating, as it can't be turned easily...



