Spider roof problems - Alfa Romeo Forum
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(Post Link) post #1 of 9 Old 21-08-16 Thread Starter
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Spider roof problems

Hi I am in need of help
I have a 2008 Spider 2.2 JTS LE and it has a problem with it's roof.
The roof closing cycle fails just before the deck locks down. I took it to a local auto electrician who has experience with roofs. he made sure the hydraulic pressure dump valve was closed and the roof worked fine for a week but then the same problem reoccurred. The roof runs through all of the closing cycle but stops immediately before the point where the rear deck should lock down giving a temporary fault message on the dashboard. Although it won't close the roof will open from the failure point with no problem. This morning I have checked the dump valve is closed and the battery voltage drop during the cycle, I checked for any fraying of the wireing loom and that all the plugs in the loom are connected everything was fine. After doing this the roof closed, however it won't open now, it makes no attempt to open and immediately gives the temporary error fault. As the hydraulics and flap motors seam to work fine I suspect a failed sensor possibly one in the windscreen header, looking at the roof control computer fault log might help. I live in North Derbyshire and unfortunately I don't think the local main dealers will have the technical experience to solve the problem. Please can you recommend an independent Alfa or roof specialist who can help me I am running out of things to do and places to go. I am looking forward to your replies
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Just get used to not relying on the electric button, and give it a manual prod when necessary.
The first thing I'd check would be that the cable in the storage box behind the driver's seat is fully shoved in.
Then check the manual levers (concealed within the roof lining) are fully pushed back (to close) or pulled forward (to open).
Specialists are very hard to come by, unless you live within a reasonable drive of Autolusso's two branches.
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Originally Posted by lussoman View Post
Specialists are very hard to come by, unless you live within a reasonable drive of Autolusso's two branches.
Or Monza Sport in Ashington. Kevin seems to have the magic when it comes to fixing our top. We have never had any real dramas with ours although there is an intermittent problem right now where the back edge of the hood is not locked down properly and it pops up ever so slightly giving an error code. Kev knows what the fault is and the car will be going in shortly for him to fix it. But thats no comfort to someone up North.

Good luck ACAce.
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I would hold back the flap motors in the closed position. A slight lost in holding torque wills top it from closing. Firstly I would watch if the flaps rock slightly when folding in.
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I had similar issue about 6 months ago, and i took it back to the dealer. The guys there fixed for me, and he said it was a sensor problem.
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(Post Link) post #6 of 9 Old 28-08-16 Thread Starter
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Thank you all for your advice. I think it must be a sensor problem as all the functions seam to work, but which sensor??. I would take it to an Alfa Main Dealer but the reviews of main dealers within 100 miles of where I live do not fill me with confidence. An Alfa specialist and an independent who does a lot of different classic cars, both of whom I trust, have recommended the same auto electrician so I will take the car to him. Hopefully he will be able to fix it so I can enjoy what remains of the good weather. Thanks again for your advice
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(Post Link) post #7 of 9 Old 21-09-16 Thread Starter
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Ryan_the_Spider was right. Both flaps were held tight when extended however when the sequence stopped just prior to the deck closing the right hand flap was rigid but the left hand had play in it. By holding the is flap up in its closed position the deck would shut and lock down 60% of the time, for the remaining 30% it would take two or three goes to shut and 10% of the time it would not do anything, If this happened fully opening the roof seamed to reset everything and the closing sequence could be restarted. The flap hinges had no play so I guessed the play was in the motor and its gears. I decided to risk 80 and bought a new flap motor. Before fitting the new motor I was worried about getting the motor shaft in the right position relative to the flap position at the right time in the closing sequence. However there was no problem. Taking the old motor off is just a matter of undoing three screws, the flap drive shaft has a key on it to line up the motor shaft. After fitting the new motor, with the deck vertical and the flaps extended, the flap was in completely the wrong position. On starting the closing sequence the first thing the control computer did was drive the flap to its fully extended position. When the flap was in the correct position the control computer re-started the closing sequence which worked perfectly. It has worked ever since touch wood. However being an Alfa to stop this little success going to my head it has decided that the airbag fault light should now come on and stay on. Any ideas
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Plugging in a diagnostic code reader can cause the airbag light to come on.
After about 20 stop/starts mine eventually went out and stayed out.
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I have have find that swopping the motors around helps. Maybe something to do with the stepper motor or holding torque.
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