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F07 Gran Turismo (2010 - Current)
The 5 Series Gran Turismo -- now available in the USA as a 535i, 550i and 550i xDrive model.

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  #1  
Old 03-14-2014, 11:57 AM
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daders daders is offline
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Location: DFW, TX
 
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Mein Auto: 2010 F07 550i, 2009 B8 A4
What is an SZL? (Part to fix steering wheel squeak)

Just received our GT back today for a battery, noisy steering wheel and new, grippy, fun tires for the missus

Anyway, the fix for the steering wheel squeak is described as: noisy SZL when turning steering wheel...replace SZL and program car (program car for an SZL ...what don't they need to program anymore???) Perhaps I don't understand fully what an SZL is since, frankly, I have no freaking clue what an SZL might be.

I went to realoem.com but found no part described with anything that looked like it could be shortened to SZL under the steering section. I even tried to understand from my SA, but this dumb lug (me, not the SA) needs to see pictures for full comprehension.

I was going to post a thread with a part number so if anyone else came across a squeaky steering wheel there would be a handy reference for resolving the symptom...alas, it is never that easy.
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Last edited by daders; 03-14-2014 at 11:58 AM. Reason: Clarification
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  #2  
Old 03-14-2014, 01:16 PM
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daders daders is offline
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OK, after more research and looking at the invoice closer they did reference a part number: 1 61-31-9-301-905 Description: Switch Unit Steering

Now when I entered that number into realoem.com and getbmwparts.com it could not be found. Never fear, I did not give up that easily! A google search helped me discover this part is actually listed under Electrical not Steering! Whhhaaaatt?!?!? There were three different options for part numbers under realoem.com and one of them actually was a hit on getbmwparts.com.

It came with a disclaimer that it may not fit my vehicle however I was curious about price rather than fit and it was $440 after a ~$100 internet discount.

So to all GT'ers, if your steering wheel squeaks when turning your wheel and it sounds like it is coming from inside the car... Just thought of a scary movie theme there... It probably is coming from this part.
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  #3  
Old 03-14-2014, 03:35 PM
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Fish23 Fish23 is offline
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Location: Ottawa, Ontario, Canada
 
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You can use this glossary of BMW Terms and Abbreviations to decode part references etc.

http://www.bmwclub.ru/vb/showthread.php?p=758741

SZL is listed as Switch center, steering column which is what they gave you.
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  #4  
Old 03-14-2014, 05:51 PM
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Fish23 Fish23 is offline
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I forgot to add that translating English to German:

Switch = Schalter
Centre = Zentrum
Steering Column = Lenksaulen

so you can see from where 'SZL' comes.
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  #5  
Old 03-14-2014, 08:39 PM
Rogue2258 Rogue2258 is offline
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Location: La Porte, Tx
 
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Once again...I feel as though I receive a free education on our forum!
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  #6  
Old 03-14-2014, 08:57 PM
jadnashuanh jadnashuanh is offline
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There are sensors in the SW that monitor it's position, for things like the stability control, and also trigger inputs to the backup camera and move the lines. No idea if that is this item, but it wouldn't surprise me. It also triggers turning off the turn signals, unlike some others that are entirely mechanical - ours don't really click and use a mechanical device to turn them off (at least from the sound of it!).

I think BMW tends to use the same parts on many lines, but relies on the ultimate programming of them for the specific application once they are installed in the vehicle. Nearly everything in the vehicle is controlled via computer. For example, I replaced my headlight switch for one with the Euro rear fog light control. Unlike many (older?) vehicles, the switch itself does not actually switch any power to anything...there's only 3-4 very small (maybe 28g) wires going to it, and a couple of them are for power to light the indicators! It has a small chip in it, low-power switches, and the module tells the computer to turn the lights on and off, IOW, it's not actually a power switch in the conventional sense. FWIW, at least on my model year, the rear fog lights are actually there, but you need the proper switch to tell them to turn on. It's a very quick user mod, and useful where you have fog or heavy snow/rain to deal with on occasion. Why it isn't even offered in the USA is beyond me, but may be because of the idiots that run with their fog lights on all of the time...a rear fog light is quite bright, and would be really annoying in normal circumstances - possibly ruining your night vision much like someone leaving their high beams on.
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Old 03-15-2014, 08:05 AM
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Fish23 Fish23 is offline
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Quote:
Originally Posted by Rogue2258 View Post
Once again...I feel as though I receive a free education on our forum!

I am just repaying in a small way for the excellent information that I have gleaned from this forum that is not in owner's manual and sometimes not available from the deales' service departments.

I work for a German shipbuilding company doing business in Canada and took two years of German in high school but am not fluent. It has interesting vocabulary and grammar rules based on those of Latin. If I told you that the word for 'pen' is 'kugelschreiber ', and noted that one word was used for 'steering column' you kind of get the idea.


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  #8  
Old 03-15-2014, 07:10 PM
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daders daders is offline
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Location: DFW, TX
 
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Mein Auto: 2010 F07 550i, 2009 B8 A4
Quote:
Originally Posted by Fish23 View Post
I am just repaying in a small way for the excellent information that I have gleaned from this forum that is not in owner's manual and sometimes not available from the deales' service departments.

I work for a German shipbuilding company doing business in Canada and took two years of German in high school but am not fluent. It has interesting vocabulary and grammar rules based on those of Latin. If I told you that the word for 'pen' is 'kugelschreiber ', and noted that one word was used for 'steering column' you kind of get the idea.


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I should have been able to figure this out! Funny story: when I was in high school my parents and I were going to visit my mother's family in Finland and went through Frankfurt. Having three years German under my belt I felt comfortable engaging the gentlemen (in fatigues holding the German Shepherd) in German after an all night flight (getting very little sleep as I was excited to be going). I'm glad this occurred before the advent of video cameras being common place because my parents started laughing at my dumbfounded look when his staccato response sounded how I imagine my dog feels everyday. Needless to say I did not attempt another round with him and my precious ego dropped a few notches that morning
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It is understanding that allows people like me to tolerate people like you. - Ferris Bueller
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  #9  
Old 03-15-2014, 07:43 PM
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Fish23 Fish23 is offline
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Quote:
Originally Posted by daders View Post
I should have been able to figure this out! Funny story: when I was in high school my parents and I were going to visit my mother's family in Finland and went through Frankfurt. Having three years German under my belt I felt comfortable engaging the gentlemen (in fatigues holding the German Shepherd) in German after an all night flight (getting very little sleep as I was excited to be going). I'm glad this occurred before the advent of video cameras being common place because my parents started laughing at my dumbfounded look when his staccato response sounded how I imagine my dog feels everyday. Needless to say I did not attempt another round with him and my precious ego dropped a few notches that morning
You raised an interesting question that I wanted to pursue for the fun of it and it was.

At least you tried to have a conversation in another language. No shame in that, regardless of how you thought it went.
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