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Discussion Starter #1
OK went through a period where I was getting a steering warning lock, but car continued to operate fine, other than that.
One morning, warning turned red...steering locked, wont start.
I had a handheld scanner which detected the fault but was not able to clear the error.
So I loaded up ISTA-D on my laptop and went to work.
The fault that it detects:

Communication problem with the following control unit:
A149 Control Unit for Car Access System
Suggestion is to check the fuses and terminals for 30E and 30L as well as the terminal for 30
I have a wiring diagram here, which is meant to be the right one, but I can not see those terminals on it, so am not sure which fuses to check.

In addition to the CIS, it occasionally finds a fault with the FRM (footrest module), again this fault does not consistently appear.

Any advice? Or is a two hour tow to Mini?

Happy to provide screen shots of errors if it would help anyone.

Thanks
 

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Discussion Starter #4
Ok so checked battery voltage 12.46, so that seems ok
Checked fuse 49 and 34. Removed both fuses, tested fine, and put them back in.
Locked car, waited about 30 seconds, unlocked car and got back in.
Popped key in slot, had airbag warning come on, and front windshield wiper turned on, and can not seem to turn it off, except by removing key.
Got out, locked car waited about 30 seconds got back in, steering lock warning came on, steering is still locked, and windshield wiper goes when key is inserted, airbag warning gone.

I am going to run another scan on vehicle to see what comes up. Will post result shortly.
 

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Discussion Starter #5
Ok here are some of the errors I received during the latest scan.
One of the screen mentions a problem that might be key related, or just a communication error between the modules.
As you can tell I am very new to this, but computers don't scare me....rebuilding an engine would!
If you have any suggestions, just point me in the right direction, or anything else you would like me to try.
Thanks!
 

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Discussion Starter #7
Thanks, have done, connections are good, voltage is 12.46, fine on load test as well.
 

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Discussion Starter #8
ok so I have now checked all fuses..all ok
Had a good look around for any signs of water leaking into the dash which some people have had due to the sunroof drain tubes becoming detached...nothing
I only have one working key, but signal strength is good from it.

MY little hand held scanner only picks up one fault .... critical fault with the CAS steering lock.

Has anyone else had a steering lock genuinely fail? If so what errors did you get? I know its uncommon...but I am wondering if it is simply the lock itself
 

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Discussion Starter #9
right so...I interior trim pane which covers the right side of the drivers footwell and then goes along the door frame.
I was checking connections around the fuse box at the bottom of the panel. When I lifted my hand, one of my fingers had a little moisture on it.
Reaching down into the gap in the body below the fuse box...there is water, a fair bit of water.
My car is parked slightly down hill so the water would be accumulating towards the font of the car...I would not imagine this is normal. It is so close to wiring it would not surprise me if moisture has gotten onto there somewhere!
 

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Discussion Starter #10
yeah, the amount of water is pretty significant, the foam under the carpet is wet pretty much to where the seat rails attach under the driver seat, so obviously it may have dried or evaporated a bit of the standing water, but the foam remains wet. Something has probably shorted out somewhere. No way to tell how high the water got near the fuses and connections when it was at its peak.
 

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ok so I have now checked all fuses..all ok
Had a good look around for any signs of water leaking into the dash which some people have had due to the sunroof drain tubes becoming detached...nothing
I only have one working key, but signal strength is good from it.

MY little hand held scanner only picks up one fault .... critical fault with the CAS steering lock.

Has anyone else had a steering lock genuinely fail? If so what errors did you get? I know its uncommon...but I am wondering if it is simply the lock itself
Yeah there’s another guy with the same problem that I’ve sent loads of diagrams to. It’s a fault of BMW’s from that era and is a matter of resetting it using the right equipment (apparently)
 

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Search for thread mini specialist Kent. Cost the guy £420 to fix, although I think he should’ve checked with the dealership. I’ve found them to be cheaper in a lot of things
 

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Discussion Starter #13
Yeah here is a video on YouTube, with what I thought the problem was, with a fairly easy fix that the software I have would be able to do.
Unfortunately this guy did not get the no communication with CAS system errors I got...and probably didn't have half an inch of water in his car.
 

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Yeah here is a video on YouTube, with what I thought the problem was, with a fairly easy fix that the software I have would be able to do.
Unfortunately this guy did not get the no communication with CAS system errors I got...and probably didn't have half an inch of water in his car.
Damn! Good luck with that. Got a Haynes manual if that helps although you could probably find it online
 

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Discussion Starter #15
OK, primarily working on finding how water is getting into the car. There is no damage to the headliner, and no signs of any interior dripping when it has been raining. I understand both of these are symptoms of the sunroof drain tube disconnect problem. There is no water or signs of water having been under the carpet on the passenger side. So I started looking for any signs of bad seals where water could potentially get in. The only thing that looks a bit suspect is the seal that is part of the plastic cowl that covers the battery (I am not sure what its proper name is...please tell me). The rubber seal has deteriorated in the corner. I do not know if that is an issue which would allow water to work its way down past the dash and ultimately under the carpet. Pictures attached. Keep in mind I have no idea how long water may have been leaking into the car.
 

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Discussion Starter #16
In my mind, I have two issues the end result is may be related, but am tackling them separately. First is the water leaking...how is so much water coming into the car...and from where?
As I work six or seven days a week, my time is limited, but I have checked the following things. The water is not getting into the headliner at all, so it sounded a bit different to most of the reported problems with the sunroof drain hoses. I did check them, they were fine. The sunroof drains were not blocked visually, I did check them, they worked fine. I looked for any issues I could see with the windscreen seals...nothing apparent. Windows were fine, no adjustment necessary. Door seals were fine. Then I noticed that the gasket behind the A Pillar looked really bad, it was all dried out, and crumbly. Parts of the leading edge of it looked like the had deteriorated away. Just to check....a gentle spray of the garden hose at the A pillar, and water came into the car. I recommend every one to just have a quick look at the condition of this gasket on each side. It is not very obvious as it hides behind the A pillar trim a bit. You may also want to have a look at this website that made me have a look at this potential problem, posted by solidsponge:
How to spot water from getting in footwell

Thanks
 
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