Determining transmission-code letter

[websterize]

How do I determine which letter my bike has?

While searching the parts fiche for magnetic drain plugs, one plug included: "only applies to transmission code letters L + N." Another plug said "only applies to transmission code letters P+R+S." None of these letters appear in my VIN.

[Las]

Geez Louise! All you need is a "d" and you,d have Park, Reverse, Neutral , Drive, Reverse and Sport! Could Beemer be confusing our R's with a cage Beemer?

[Clem]

Perhaps letter codes for the transmission year of production? Could they be Getrag code letters?
http://powerboxer.de/index.php?optio...364&Itemid=157

An old post by macx in Sept.2010 touched on this.
Before 2003 was G. 2003 and up begin with J.
My old laptop won't do anything with the German link

Need help deciphering number on transmission
by macx » Sun Sep 05, 2010 1:35 pm
Does anyone know how to decipher the number, probly a part number?,
that's stamped on the upper right side of the bellhousing?
My roadster trans has a 10 digit combination number and letter code,
but no part of it matches the transmission assembly number, or the
transmission front cover part number, for my bike in the parts fiche.
I am in contact with someone who has an 1150GS trans but doesn't
know if it's the regular or low ratio trans, it's still in the bike but his
engine is blown up.
Per the parts fiche, the regular GS can have either, and the GS Adventure
can have either, also. If he doesn't remember any mph to rpm in 6th
so I can figure it out, he's going to send me that 10 digit code.
Would appreciate how to figure it out.
The code on my 04 R1150R is 00027S2JAS, nothing like the parts fiche
listing for the trans assembly which is 23 00 7 677 008, or the front trans
cover assembly 23 11 2 332 967 or 333 072.
Thx!
macxBasic User Posts: 888Joined: Thu Aug 14, 2008 5:50 pmLocation: Cape Girardeau, MO
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number you gave is Transmission serial number not part number
by dc10bill » Wed Nov 10, 2010 1:40 am
The number you gave appears to be transmission serial number not part number of transmission as number you are seeing is just behind timing plug on rh side of transmission case as "000####JAX" (is for 2004 R1150RT's) and your #'s has same style
dc10billBasic User Posts: 21Joined: Sat Jan 16, 2010 11:48 pm
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Re: Need help deciphering number on transmission
by macx » Wed Nov 10, 2010 7:59 am
Since I posted that question, I finally did find an interpretation of that
code.
http://www.advrider.com/forums/showpost ... ostcount=7
macxBasic User Posts: 888Joined: Thu Aug 14, 2008 5:50 pmLocation: Cape Girardeau, MO
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Re: Need help deciphering number on transmission
by f4tweet » Wed Nov 10, 2010 11:43 am
My transmission in my 02 R 1150R is GAL. Any ideas?
"We're surrounded, that simplifies our problem."-Chesty Puller
02 R1150R Black
f4tweetLifer Posts: 143Joined: Wed Nov 04, 2009 12:27 amLocation: Southern Kalifornia
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Re: Need help deciphering number on transmission
by macx » Wed Nov 10, 2010 1:11 pm
Well, that's a code not listed in the document where I found
the codes. The list I found shows the 2003 & up starts with
the letter J, the ones before 2003 start with G, but it doesn't
show a GAL. The 03 & up list shows a JAL as being the low ratio
unit, so maybe yours is?
You could tell pretty easily by rpm in 6th gear. With the 2.82
final drive, the "tall"/standard ratio trans will have 21.3 mph
per 1,000 rpm, the "short" / low ratio trans with have 18.7
mph per 1,000 rpm. So at 60 in 6th, the high ratio will be
about 2800 rpm and the low ratio will be about 3200 rpm.
This is originally in German, I used Yahoo Babel Fish automatic
language translator to get an English version.
http://babelfish.yahoo.com/translate_ur ... =Translate
If it doesn't come thru in English, or not at all, here's the link to the
German language version
http://powerboxer.de/index.php?optio...364&Itemid=157
To translate, look for (free) Yahoo Babel Fish translator.
Open the German webpage, then the translator and copy the
address from the German page into the window on the translator
page. Grammer and wording comes out a little funky but you
can tell what the meaning is.

Here's a spreadsheet I made up to compare road speeds & rpms
of the standard ratio trans & final drive with other combinations
including 2.75 & 2.62 final drives and the low ratio transmission.
Hope you can figure it out! :-)
http://www.mediafire.com/?vb149e3b3548b8v
macxBasic User Posts: 888Joined: Thu Aug 14, 2008 5:50 pmLocation: Cape Girardeau, MO

[hjsbmw]

I don't know if the previous post and its quoted text answers the question. But, I have emailed Max BMW, and they told me they don't know how to determine the transmission letter. They recommended measuring the plug, then ordering. Trouble is, taking out the plug will drain the oil too.
But, taking the filler plug out to measure, find its letter code should work. The drain plug should have the same letter. According to that, measuring a 18mm filler plug, my transmission has the P+R+S lettering, hence a 14mm drain plug according to the fiche. I won't be able to verify this until after I change the oil though.