Roof fault

flybobbie · Post by **flybobbie** » Wed Mar 20, 2019 10:50 pm

Well i have entered the twilight zone.
Came home tonight with roof open. Come to close, boot lifted, roof up, boot closed but stopped with 5mm odd to go.
And that was it, came up roof fault on idrive.
Played with the buttons and it finally closed.
So cycled and roof stowed.
Then only boot would open and then nothing. Can only close the boot.

So put two covers over it for now.
And ordered a Foxwell obd reader.
The laptop readers and bluetooth readers i have are complete waste of money and time.

My first thought is that it's the boot tray hall switch that is at fault.
But i'm sort of sure the idrive would state that it is not locked from past experience.

Smartbear · Post by **Smartbear** » Thu Mar 21, 2019 12:47 am

Hi, no movement possible with boot partition fault

: 0CC55029-0297-4465-A6EC-7DF39C8960AF.png (212.15 KiB) Viewed 1918 times

Rob

flybobbie · Post by **flybobbie** » Thu Mar 21, 2019 8:31 am

Thanks for that, i think my next step is to read and print off as much info from this site as i can.
I'm getting the red roof symbol.
Looks like the motorbike is coming out to play.

markplant · Post by **markplant** » Thu Mar 21, 2019 8:52 am

Dietcokeman did a lot of good work with the e89 roof, have a look for his thread I know he has fixed a few for others as well, but the price of the sensor/switches has gone up a lot from memory

flybobbie · Post by **flybobbie** » Thu Mar 21, 2019 9:32 am

Yes cheapest so far is £175.
If it is the usual culprit i have nothing to lose to try and reverse engineer the switch first and if it is cracked, try to find out why.
To go from £15 to £175 is criminal.
I bet they are made in Italy.

I seem to remember seeing the same cylinders and sensors used on high end Italian cars and the switches were still quite cheap.
That is where i have seen these, a guy on YT named Tavaris was rebuilding a Lambo and he had some wiring burnt to a microswitch and the cylinder and switch were the same as on the Z4.

markplant · Post by **markplant** » Thu Mar 21, 2019 9:42 am

flybobbie wrote: ↑Thu Mar 21, 2019 9:32 am Yes cheapest so far is £175.
If it is the usual culprit i have nothing to lose to try and reverse engineer the switch first and if it is cracked, try to find out why.
To go from £15 to £175 is criminal.
I bet they are made in Italy.

I seem to remember seeing the same cylinders and sensors used on high end Italian cars and the switches were still quite cheap.
That is where i have seen these, a guy on YT named Tavaris was rebuilding a Lambo and he had some wiring burnt to a microswitch and the cylinder and switch were the same as on the Z4.

We seem to watch the same stuff on you tube as well

flybobbie · Post by **flybobbie** » Thu Mar 21, 2019 9:56 am

https://www.youtube.com/watch?v=uROikp4 ... cT&index=4

Look at 16:10

And a later video he looks in more detail.
I just need to find other links i had to Lambo spare parts.

flybobbie · Post by **flybobbie** » Thu Mar 21, 2019 10:05 am

This interesting as well, looks very similar cylinder and micro switches.
https://roofmotors.co.uk/ford-focus-cc- ... ic-rams-20

I will pop into the local Ford dealer and find out the price of their Hall switches.

Smartbear · Post by **Smartbear** » Thu Mar 21, 2019 3:34 pm

flybobbie wrote: ↑Thu Mar 21, 2019 10:05 am This interesting as well, looks very similar cylinder and micro switches.
https://roofmotors.co.uk/ford-focus-cc- ... ic-rams-20

I will pop into the local Ford dealer and find out the price of their Hall switches.

Hi, this might help with trouble shooting

: E8E7E115-95C2-4E2E-ABCB-7C960088477D.png (156.47 KiB) Viewed 1846 times

Rob

flybobbie · Post by **flybobbie** » Thu Mar 21, 2019 5:40 pm

Been to Ford they seem to use similar switches, price £138 for a pair for the Ford Focus Cabrio.
Also seen Audi switches look the same.
The boot lid will open and close, but that's it.
The problem now is to get the roof shell to unlock as it's not being told to unlock.
I can dump the pressure at the pump using Allen keys and could manually lift the roof over.
There is the possibility of detaching the roof shell motor through the ski hatch, but might involve damaging the roof lining.
There is some talk of that in the repair manual.

flybobbie · Post by **flybobbie** » Fri Mar 22, 2019 7:20 pm

Smartbear wrote: ↑Thu Mar 21, 2019 12:47 am Hi, no movement possible with boot partition fault
0CC55029-0297-4465-A6EC-7DF39C8960AF.png
Rob

I moved the partition up and it's warning came up, so i assume it's hall switch is working.
Plus fault warning only comes up engine running and not with engine off when i cycle the buttons.

Smartbear · Post by **Smartbear** » Fri Mar 22, 2019 7:28 pm

flybobbie wrote: ↑Fri Mar 22, 2019 7:20 pm
Smartbear wrote: ↑Thu Mar 21, 2019 12:47 am Hi, no movement possible with boot partition fault
0CC55029-0297-4465-A6EC-7DF39C8960AF.png
Rob
I moved the partition up and it's warning came up, so i assume it's hall switch is working.
Plus fault warning only comes up engine running and not with engine off when i cycle the buttons.

So your roof operates ok with the engine off, but doesn’t work with it running?
I’ve not heard of that before

Rob

flybobbie · Post by **flybobbie** » Sat Mar 23, 2019 12:26 am

No, only boot will lift with roof stuck in boot area stowed. The words roof fault only appear if engine is running.
And the fault doesn't remain on the idrive screen.
I'm going to pick up a small cylinder with two hall switches next week from a local breakers, £25.
These switches seems common among a range of vehicles, this being off a Mitsubishi.
Also have a Foxwell reader on order.

Smartbear · Post by **Smartbear** » Sat Mar 23, 2019 1:17 am

flybobbie wrote: ↑Sat Mar 23, 2019 12:26 am No, only boot will lift with roof stuck in boot area stowed. The words roof fault only appear if engine is running.
And the fault doesn't remain on the idrive screen.
I'm going to pick up a small cylinder with two hall switches next week from a local breakers, £25.
These switches seems common among a range of vehicles, this being off a Mitsubishi.
Also have a Foxwell reader on order.

Hi, not sure if you have this? It maybe useful in diagnosing the issue

http://www.eastpazscca.org/downloads/forum-5.pdf
Rob

flybobbie · Post by **flybobbie** » Sat Mar 23, 2019 10:22 am

Yes seen that thanks.
And seen quite an extensive discussion on a German forum.

This last operation of the roof has been the first time for a few weeks since i cleaned the car.
I did drive through quite a flood a few weeks ago, i'm wondering if the outside air temperature sensor, on the lower left bumper has got contaminated. Next time in car in will check to see if the outside temp. is reading correct.
Probably not a problem as the boot lifts then everything stops, so it seems the ram micro not telling the system the boot is open.

Main problem is to unlock the roof module so it can be physically lifted up to get at any micros.
Might have to strip out all the trim between the hoops.
Had the car 7 years and other than one lose connector the roof has been faultless.

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