Forums > Maintenance > 07 K12 GT with New ECU and ASC

It sounds like they are trying to control the distribution, but it would seem like there would be better ways; like some type of algorithym using the VIN.  My concern would be what would happen when you need to reinstall or reupdate the bike and the origingal update software is unavialable.

I have a 2007 K1200GT and I think I have the stumble throttle response problem

also. What do I have to do to get the fix?

If you do not have ASC, ride straight to your dealer tomorrow and tell him that you are having throttle problems and that you want ASC added under the factory program that ends JUNE 30.   He will then update your ECU and programming. They will charge you 1/2 price for ASC hardware ($250-300) but labor and ECU swap will be covered under warranty.  The program was to have ended in May, and they have given dealers until end of June to catch up and install.  But if he is cooperative, he should be able to make it happen.

On the other hand, you may have something else wrong.  I didn't have to say anything other than "throttle problems and ASC" to my dealer.  Good luck.

Ray

I talked to the service manager at the local BMW dealer. He said the ASC thing is internet gossip. He said that newer K1200GT bikes come with a larger air box. He said he will put it in mine (which was built before they started doing that at the factory) and reflash the ECU program to fix the surge problem.

 

Not sure which part is gossip, but what I am relaying is what my service manager told me and has been repeated here often.  I have had no discussions about air boxes, and I have had no flat spots.  What I did have was very snatchy throttle and annoyingly instant-off deceleration upon release of the throttle.

Subsequently, I have wondered if this herky-jerky could be promoting the driveline lash that seems to plague at least the earlier bikes.  Don't know though; just posed it as a question to be considered.  Good luck.

Ray

To answer my own question, I told my delaer that below 3000 rpm, the throttle response stumbles (surges forward then cuts back and then repeat). You don't need much power at these low RPMs but you want smooth controllable power.

Earlier made machine (I have a 2007) do not have the upgraded ECU program. They fixed my problem when I took it in for the 6000 mile service. It was covered under warranty. Runs smooth now down low.

Glad it worked out for you without ECU upgrade.  My was a bit different, and I went for the 1/2 cost ASC which requires the new ECU.  Still haven't had a price quote, but all systems are installed and operating well.  Hope things remain on course for you.

Ray

I have an 06 GT and I an experiencing the same dilemma. I have been told that the 3rd generation AIRBOX will arrive in 65 days from Germany, but, until then, my bike rides like it is possessed by demons. The throttle seems to hang around 5K RPMs and sometimes the bike will revv by itself or stall ouyt when I change gears. I'm losing my mind. I already have 12,000 miles on it and have been riding this way for about 4,000. I'm still waiting for a call from my dealer, despite them doing their best to fix the problem.

My Harley friends (I sold my roadglide with 90,000 miles for a Beemer) are laughing at me!

---------------------------------

Jim Mitchell

Mine runs like a top since the reflash. It always ran good before at 4K and up but at very low RPMs (for a K) the power was uncertain. This made it hard to control since when the power comes on it can come on real strong. Now when trying to ride smooth at low speed I can stay in a higher gear and use smooth controllable (low) power. If you don't have it, GET IT! Mine was an early 2007 so it did not have it. The later 2007s had it installed at the factory.

 

 

A friend with an early K1200S reported the same results. Glad to hear BMW is taking care of the ECU. However, it's issues like this that prevent me from becoming an early adopter.

---------------------------------

1994 K1100RS & 2005 Harley Electra Glide

I am not so fortunate. I have been told that I have to wait for a new Breather Box (3rd Generation) and have already had 9 downloads between 2 dealers (the last one the 10.2 download?). My bike, a 2006 GT, runs as if its posessed by demons...the engine surges in any gear, especially if its around 3-35K rpms at a slow speed and has cut out on me when riding on the highway! The bike is currently awaiting the new Breather Box (it's on backorder) and now I cannot ride at all. The service departments and the BMW rep have said that the BB should fix the problem....or not. I may have to Lemon Law the bike if that doesn't work. I am sick over this!

---------------------------------

Jim Mitchell

Kinda makes you long for the HD, eh?

Laissez le Bon Temps Rouler, yall.

---------------------------------

jean

---------------------------------

1994 K1100RS & 2005 Harley Electra Glide

quote user='Geoff'] A sport tourer comparison in the current issue of Rider ranked the K1200GT fourth among competing bikes, including the Honda ST1300, Yamaha FJR1300A and Kawasaki Concours 14. The GT was the lightest bike (666 lbs.) and offered the most horsepower (131 hp) of any bike in the test. However, it was nicked for its permium price, overly sensitive brakes, lack of front-end feedback and shifting anomalies. Testers said the transmission was rough, especially on downshifts, and the bike had noticeable driveline lash. The Honda ST1300 was ranked first. [/quote]

Concerning Rider's comparison, I have to say, although I wound up buying my beloved RT, I did test ride a new GT and a Honda ST1300 first.  Let's just say that I got goose-bumps riding the GT.  That in my book rates the GT way above the ST1300.  I did notice that the GT downshifted a litte hard a couple of times but that can happen on any bike, especially when new.  I found no problems with braking or front-end feedback.  I think this reviewer was digging pretty deep to come up those "flaws".

Fury

---------------------------------

Fury 2007 R1200RT