SMG/Clutch Issues

[shane@mbtech]

It had the latest SMG software put on a few months back, when I had clutch judder, I also recalibrated the clutch/SMG at this point.

Didn't cure an awful lot, the judder came back with a vengeance which was the reason behind the clutch change.

Hope someone can give a definitive answer, already set back some serious money after having the gearbox out twice along with the sensor and clutch. To have another error that noone seems to really know the answer to is so frustrating!



Would that be throwing up an error like this? Is it an easy replacement? The gearbox is off down at the indy at the moment as someone suggested replacing the clutch arm, so I'm trying that.

Would really appreciate any advice whilst the box is out.

GPT is gear position transducer (sensor).

As monkey has said, this is the likely cause:supz:

[bildo]

Just a passing thought, perhaps the software needs upgrading? One for the animals; Giraffe and/or Gorilla!

It had the latest SMG software put on a few months back, when I had clutch judder, I also recalibrated the clutch/SMG at this point.

Didn't cure an awful lot, the judder came back with a vengeance which was the reason behind the clutch change.

Hope someone can give a definitive answer, already set back some serious money after having the gearbox out twice along with the sensor and clutch. To have another error that noone seems to really know the answer to is so frustrating!

I'm not sure what a GPT is?! But these gearboxes are prone to the knuckle on the back of the gearshift rod seizing.

Item no 12 on this picture

http://www.realoem.com/bmw/showparts.do?model=BL92&mospid=47621&btnr=25_0375&hg=25&fg=05

it connects to the gearshift rod at the rear of the gearbox, with a roll pin holding it in place and then a circlip around the outside of it.

I Would check that first.

Would that be throwing up an error like this? Is it an easy replacement? The gearbox is off down at the indy at the moment as someone suggested replacing the clutch arm, so I'm trying that.

Would really appreciate any advice whilst the box is out.

GPT is gear position transducer (sensor).

[Monkey]

I'm not sure what a GPT is?! But these gearboxes are prone to the knuckle on the back of the gearshift rod seizing.

Item no 12 on this picture

http://www.realoem.com/bmw/showparts.do?model=BL92&mospid=47621&btnr=25_0375&hg=25&fg=05

it connects to the gearshift rod at the rear of the gearbox, with a roll pin holding it in place and then a circlip around the outside of it.

I Would check that first.

[Neil M]

Just a passing thought, perhaps the software needs upgrading? One for the animals; Giraffe and/or Gorilla!

[bildo]

Ordering a new clutch release arm in a minute, does anyone else have any other suggestions that I can order at the same time?

[bildo]

Broken clutch release arm and or release bearing.

Thanks for your response.

Bearing was replaced with the clutch, which has since done 0 miles so I assume it can't be that!

So it definitely points to the release arm then?

[thegingerninja]

Broken clutch release arm and or release bearing.

[bildo]

Hi guys, I'm new here and only a measly M3 owner for now (non-CSL, sorry!) My car is pulling my hair out and since you all seem really knowledgeable I figured I'd ask for your input.

Basically it all started when I had an SMG issue, the car wouldn't go into gear one day. That sorted itself, however from then on the gear changing was REALLY slow. The more throttle I had, the longer it took to get into gear.

I was told to replace the indent springs, followed by the GPT. These were both replaced and whilst the gearbox was out I got the clutch replaced for a new LuK unit too.

Since the sensor change the adaptation can now be carried out (where it failed before), however it's throwing up a fault code on Autologic which is saying that the car has high resistance when going in to odd gears.

I'm completely stumped as to what this could be, with a brand new clutch, GPT and springs I'm not sure what's left? Since there's pressure and no other reason to think it's the pump I'm assuming that's not causing the problem.

Indy has tried talking to Autologic and they're stumped on what it could be too.

Any ideas chaps? :beer: