In the last couple of days I've been having an increasingly hard time getting out of 6th gear. I have no problem getting in or out of the other gears but 6th seems to be getting stuck.
Also it only seems to happen if i'm in 6th for a while. Meaning if i go into 6th and come out of it relatively soon there is no problem. But if I coast in 6th for some time then it gets stuck.
There is no grinding, it's just hard to get out of it, and when I do get out of it it's a quick motion, not a slow draggy motion.

This is on a 2007 R56 with 88k miles
Also, I don't know if this matters but I just started working at a new office at the end of last week, I'm now primarily doing back road driving, some areas seem to be more heavily salted than on my old route.

 

Clutch.

 

I'd check the shift linkage and cables first. Make sure they're not hanging up on anything, make sure any bushings are still in place, make sure the cables are staying where they're supposed to, and see if you can check them for damage or water infiltration or some such.

Usually problems only with one gear are not due to the clutch. (Not universally, but usually.)

 

To expand on what Slave to Felines says, remove some of the plumbing over the tranny, and check the linkage movement while someone else moves the shift lever. You'll notice the linkage not only moves forward and backward, but up and down. Make sure there is clearance for all movement.

 

The clutch seems a bit odd for me.
I suspect that it has something to do with the shift linkage. I was also told there may be a problem with the synchro. I will be looking at it this weekend.

Odd thing though, it didn't happen at all today.

 

Cold where you are? Maybe ice in the shift linkage..

 

Yeah, it's been below 0 almost on a daily basis. I don't remember last time we were above freezing actually...

But yeah, that's my guess. Like I said i'm taking a look at it this weekend, it's supposed to be above freezing.

 

I have always notice in colder weather that my shifting is much more notchy when it's cold outside and when the engine is cold. After a certain time has passed it gets smoother, by this time the transmission fluid is warmed up and is not as thick. I hope it's not a synchro issue, you night also check with both of your slave cylinders like other's have meantioned, could be air in your hydraulics.

As for me 6th gear is by far the smoothest gear shift of all of them, I look forward to the diagnosis since we both have an 07 MCS.

 

Well, the problem went away on its own, didn't happen Thursday, Friday, or Saturday. I still took a look yesterday to see if there was anything out of place. But it's hard to diagnose a problem, when there doesn't seem to be a problem to diagnose.
I saw nothing odd, cables look fine, and i'm shifting smoothly again.
So for now i can only assume that some debris had gotten into the linkage and has now been dislodged.