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My $0.02 Steering Angle Sensor Fix
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03-29-2012, 10:32 PM | #45 | |
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Look at the pictures.(pic 3 & 4) I used a flat head screwdriver. You should be able to press in the metal spring clip that holds it in on either side. |
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03-30-2012, 12:18 AM | #46 |
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OK - I did get it off.. Thanks to a video that I found on youtube... Cleaned the disk w/ no luck... Infact now it seems that the headlights are acting more crazy!
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04-03-2012, 09:06 PM | #47 |
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I have had the dreaded faults for close to 7 months now. They were intermittent in the beginning, but then were constantly on. I had steering angle, yaw rate, and DSC errors. I used an INPA software program and serial-usb cable from China to access the computer to find this information.
My errors resulted in loss of cruise control, HDC, DTC, 4x4, turn signal constantly on, and loss of brake assist. The turn signal was the most annoying so I attempted this fix to see if it would work. This was a great DIY. I read up on another one that was a DIY guide for the sport steering wheel upgrade as well for further clarity. I took out the optical dis and cleaned it well like a DVD or CD using 100% isopropyl alcohol. There was quite a bit of crystallized build-up. I also used a Q-tip soaked with alcohol to clean the LED. Then I put everything back together and it did not fix my errors unfortunately. However, the turn signal issue went away surprisingly. I then thought it might be my alignment since I noticed in the software that I still had yaw rate and steering angle sensor errors. My car drifts a little to the left. Low and behold, I got it aligned, used the software to run the longitudinal sensor calibration and all errors went away, YAY! I am still happy i took the gunk off of the optical disc because that is just some nice security going forward. So all is well and I saved a lot of money!
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04-04-2012, 06:41 AM | #48 | |
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04-04-2012, 08:27 AM | #49 | |
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04-07-2012, 05:05 AM | #50 |
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this crystalized build up you guys talk of, is it like anodized corrosion dust or what? white stuff? where's it all coming from? Man... Gotta say, this seems like a really daunting and complicated task, college education or not.... But i'll definitely give it a go in the near future... I've got all the warning lights on the dash like a christmas tree. Just waiting for the right time to dive in...
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Last edited by TheTallJS; 04-07-2012 at 05:40 AM.. |
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04-07-2012, 05:59 PM | #51 | |
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04-25-2012, 04:34 PM | #52 |
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For those having trouble getting the air bag out... if you look at pic #6, those 2 "tube" looking areas at 4 & 7 o'clock running from the corners towards the steering wheel bolt are what you are shooting for. It took me some time, but once I found it on one side, it was pretty hard to miss on the other. Cleaning the disc fixed my problems. I was only getting the errors when turning left. When the steering wheel reached a certain spot, it threw the errors.
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04-25-2012, 04:35 PM | #53 |
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Has anyone had this issue but didn't have the light come on on their dash?
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05-02-2012, 11:24 AM | #54 | |
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how long should this process (steps in the guide) take from start to finish if I just clean, and do not attempt soldering?
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Thanks! |
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05-03-2012, 03:27 PM | #55 |
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He is heating the whole board so all the solder joint reflow, somewhere around 400F. It's a trick to reflow solder joints on solder on processors but it's a careful balance in reflowing vs overheating. Search goggle on Xbox 360 red rings of death fix and all will be revealed. I did individual components and that worked too. Hope this helps.
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05-12-2012, 07:35 AM | #56 |
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I had this problem for a while in my car, yesterday I found this post, today i followed it point by point. I took the PC board out but did not resolder any joints. Basically cleaned the disk and LED. Problem fixed. Thanks
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05-19-2012, 09:43 PM | #57 |
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So I had some help doing this today with some local e90posters! we cleaned it with 91% alcohol, and it ended up getting the crystals off, but looking more smudged overall than before. we put it back together and it seemed to work a little better (the left turn signal now self cancels), but then a few minutes later it went back to its full problematic past.
so im thinking i have to take it apart again and use actual plastic cleaner. any tips on what to use? meguiars? did anyone else have this problem? we didn't resolder the board, btw. |
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05-26-2012, 06:05 PM | #59 |
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So I finally attempt to do this after almost half a year driving with the christmas lights. Great write-up btw.
So I didn't find any flakey stuff on the front part of the optical disk, but there was a decent amount of gunk on the backside. The gunk apparently originated from the old dried up lube that is on the disk's neck tube thing. I just took a microfiber towel and rubbed it off. I also noticed some scratches on the back of the disk, probably due to the disk's neck wearing and tearing, so eventually the disk will need to be replaced, or the whole thing that holds it; (someone bought it and was trying to sell it in earlier posts). *Edit* All errors are gone. Wow.... Total time: 3 and 1/2 hours.
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Last edited by TheTallJS; 05-28-2012 at 11:53 PM.. |
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06-16-2012, 02:24 PM | #60 |
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Just thought I would chime in with another success story after following this guide. I cannot thank the OP enough!!
I had taken my 328i coupe to a local repair shop to replace a faulty water pump that lead to overheating (a $1,000 repair in itself) and asked that they also take a look at the DSC malfunction. It had been a problem for about a year and had all the standard symptoms: myriad of errors reported upon startup, no cruise, turn signals would not shut off, etc... They said I needed a new steering angle sensor and it would cost another $1100! Naturally I just said that I could live with the problem and that's when I found this post. I followed the instructions up until the soldering steps, and just settled for a good cleaning of the optical disk, the LED sensor, and the shield covering the sensor. After putting everything back in place and starting the car again all the malfunctions still popped up, but upon pulling out of the driveway they all disappeared and everything seems to be working as expected after a couple hours of driving. Thanks again! Last edited by Fosterside; 06-16-2012 at 04:24 PM.. |
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06-23-2012, 12:24 PM | #61 |
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E93 with paddle shifters
Hey everyone. I'm trying to take care of this on my E93 with paddle shifters but it seems that I'm stuck on pic #4 (On each side of the steering wheel at 4 & 7 o’clock position there are small slits on the surface, put a straight torx driver or allen key into. Feel for the spring and push to release the springs, pic#3 & #4. ).
EDIT: Last week I stopped by a local BMW shop and they showed me where I need to drill through the rubber parts of the steering wheel to get to those 2 screws (pic 3/4). Since 2008 model those screws are covered so you have to feel with you fingers to find the holes and then poke through them. Weird! Last edited by dsvk; 10-26-2012 at 10:25 PM.. |
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06-24-2012, 09:50 AM | #62 |
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When you all started having this problem, what other symptoms did you have? I've owned the car since October last year and I've had this problem twice: Start up from cold, drive maybe 2-3 blocks, after first turn I get DSC warning, brake light, and car bucks/slows like its in limp mode. I turn it off and back on and it goes away instantly. Do any of you have the car shake, etc when it happens and have to stop or can you keep driving?
I disabled my jb4 auto clear and I'll keep an eye out on codes, right now it says there are none, so I'll have to let it happen then check back. Last edited by slopokdave; 06-24-2012 at 10:17 AM.. |
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07-27-2012, 06:44 AM | #63 |
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Hello to all,
I had the same Steering Wheel Sensor probem in my E90 320d (3/08) and I fixed it yesterday in a Greek BMW Dealer. Just to inform you guys, that if anyone of you doesn't want to do the whole described above job, you don't need to replace the whole BMW Genuine Part Number: 61 31 9 123 049!! There is a BMW Repair Kit (BMW Genuine Part Number: 83 19 2 179 894) which replaces the disk, the IR led and applies new lubricant on it.......most important, it costs only 45 Euro the part plus another 80 Euro for the installation, in total 125 Euro! The above kit applies for models up to 11/2008 ONLY!! Take care all.....
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11-25-2012, 11:04 PM | #65 |
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thank you thank you thank you. just used this guide to clean the disk. did not solder anything. put it back together and I have had zero problems since.
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11-25-2012, 11:08 PM | #66 |
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