power hood motor set up ?????????

Thu Mar 24, 2005 12:31 pm

Hi i 'm replacing the power hood motor on my cady, ( cracked casing )
before i fitt the new motor , is there any set up procedure for resetting the cabin hood to frame lift motor , and adjusting the drive rods/ linkage?

cheers

Thu Mar 24, 2005 1:56 pm

lt;<Top motor re-sync procedure>> 
 To the left of the motor that controls the top (far
right motor) there is a black control box that has (4)
relays (coils). Check these (4) coils with a 12v tester
for power with the ignition key on. If all of these
have power then it is possible to get power to the
micro switches. If these relays do not have power, then
you'll need to either swap out the control box or
troubleshoot the wire harness by doing some continuity
checks. The reason the top does not work is because
there is no power to the micro-switches, I'll
explain. Power to the micro-switches is controlled by
the lid motor lock mechanism. The lock mechanism is
controlled manually by the allen wrench. When the lid is
locked and the lid motor engaged the switches will have
power (you'll notice that when you lock the lid, the
lid motor assembly swings in and out slightly). When
the lid is locked it swings the motor closer to the
body of the car and completes the ground for the micro
switch. The problem is, it is very difficult to get both
the lid locked and the lid motor engaged. They must
be done simultaneously. If you have power to the
relays, here is how to get power to the
micro-switches. This is easier with two people....also make
sure the ignition key is on Disengage all the
motors (unlock the lid mechanism, disengage the lid
motor and the top motor) Undue your top from
the front window and push it up like your going to
put the top down with the switch These have
to been done in this order. Re-engage the
top motor (far right) have someone slowly lift the
back window until you can seat the top motor in. 
 Now the hard part... You have to lock the lid
mechanism with the allen wrench and engage the lid motor at
the same time. It took me several tries at this. Try
locking the lid half way, then pushing in the motor half
way and play with it until the motor pops in and the
lid locks at the same time. If you were
successful you can turn the micro switch adjustment screw
(located to the left of the allen lid lock point). When
you turn the adjustment screw you'll hear a click
when the switch turns on or off, you'll have to listen
carefully. If you don't hear a click then you have to
disengage the lid motor and unlock and try again. If you do
hear clicks while turning the adjustment screw, turn
the screw all the way to the left and slowly turn to
the right until you hear a click. Then test your top,
does it work? If not turn the screw all the way to the
right and slowly turn to the left until you hear a
click. Then test your top again, it should work and may
require further adjustment using this adjustment
screw. This is a difficult procedure to explain, but
it is fairly easy to do yourself. The micro-switch
will not get power if you are unable to lock the lid
and engage the lid motor simultaneously. My dealer
could not even do it. So it will take some playing
around with until you get the feel for it. Once all the
motors are engaged and there is power to the micro
switches you just have to turn the lid micro switch to the
position the tells the system the lid is down and locked.
Then the top should operate normally. Greg
Bird 91 325IC M-Technic

Thu Mar 24, 2005 1:58 pm

I am just about to replace mine and have an ex bmw man who is doing it at a reasoable cost..He is in Sheffield I will send his address if you wish

Thu Mar 24, 2005 2:12 pm

Many thanks will give it a go this week end
In Darford so will have to try it my self
cheers

Sun Mar 27, 2005 10:41 pm

Dave D
/ any one help?
I swopped the motor over ok , used your reset procedure ok (many thanks )
but got problem setting up linkage drive rods,
i believe it may be main hood rod is bent to much, i got it working on sat , but not to day , think rods bent with to much use? is it a fail safe or common fault?
Can any one confirm what the s1 and s2 adjusters / micro switchs do , on the rhs hood motor, i belive they alter the movement in degrees on the drive arm ?
is there a set up procedure for this and the drive rods ?
is any one around Dardford ares with a caddy to compare drive rod shape?

Mon Mar 28, 2005 9:59 pm

Hi there,
S1 and S2 are the movement limits on the hood motor.
If you have changed the motor the chances of them being set correctly are 1000/1 against...
Get the old motor and if it has not been messed about you can transfer
the switch assembly complete. It is best to test the motor without the
operating arms connected to the hood to see where the hood starts and stops. The movement is roughly 180 degrees from the point wher the rear of the hood lifts to the point where the hood stows in the compartment. Any overtravel or obstruction will bend the operating arms
for sure.....that motor can bend 20mm steel bars.
Some day I'm going to write abook on this.
Good luck

Tue Mar 29, 2005 7:43 am

Just a thought as i was thinking of replacing the motor too. Make sure your rear screen is either a genuine BMW or of similar quality / thickness before going to automatic folding. Otherwise when the motor is used, and not manually folding the roof/screen down, a thinner screen can crease if not assisted. Seen this a few times, replacement hoods not folding 100% crease free. Saves fooking up your new screen.
Andy.

Tue Mar 29, 2005 11:56 am

Thanks for comments

just ordered new drive rods Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£

Can any one confirm what the s1 and s2 adjusters / micro switchs do s1 does ? s2 does ?
n the rhs hood motor, i belive they alter the movement in degrees on the drive arm ?
I really need a set up procedure to continue as do nt want to bent new rods or break new motore Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£Ãƒ”šÃ‚£
cheers

Wed Mar 30, 2005 12:33 pm

I paid Ãƒ”šÃ‚£290=vat from europarts...how much is everyone else paying