[Ilma]

Sounds like your clutch paks are done and slipping.

You can replace all the solenoids and seals, but if the clutches are worn and glazed it won't help.

I had my 6AT rebuilt a few years back and they replaced all the clutches because they were worn out.....probably from early piggyback days before backend flashes.

The tranny was not getting correct torque information back then.

Find a shop that works on german transmissions and ask them for a quote to re and re the tranny including clutches.

[brakthru]

Originally Posted by KCLe90

Problems keep getting worse. 4th to 5th will rarely shift without slipping, and I get a pulsation like fee when accelerating at any throttle between 2.7K and 3.6K. (Will try to upload a photo of data log).

Any update on the transmission shutter? Were you able to get down to the bottom of it?

[KCLe90]

Originally Posted by brakthru

Any update on the transmission shutter? Were you able to get down to the bottom of it?

No, still slips. I assume it is indeed the clutches, I just can't afford to replace them with performance clutches right now

[335xiMsport]

Check your trans temps, i had the same issue slipping 4th to 5th and then i installed a trans cooler and it fixed my issue. My trans was getting to 95-100c

[dave330]

i've got a xhp gearbox map on my e92 330d and have shifting problems with all of the maps, the worst is the shift from second to third gear, if you watch the rev counter it looks as thought it's shifted gear but it hasn't and then it shifts about a second later it almost feel like a half shift if that makes sense.
spoke to xhp and they said to adjust the torque reduction upshifts i've got the second to third shift reduced by 40% and it's still not great, also seems worse when it's cold.
even if i use the stock map with the xhp software it still does it but only slightly, car shifts perfect with the xhp software uninstalled.

[Jaredar]

Originally Posted by KCLe90

No, still slips. I assume it is indeed the clutches, I just can't afford to replace them with performance clutches right now

Looking to tune my car and trying to figure out if it's worth the risk. What did the issue end up being? KCLe90

[Bimmer_Bro]

Originally Posted by Jaredar

Looking to tune my car and trying to figure out if it's worth the risk. What did the issue end up being? KCLe90

Xhp is 100% worth it, don't hesitate. It will transform your car. Iv had mine installed for 5 years without a single issue. Just do a transmission service before you tune it. Then follow the break in procedure and your good to go.

[iqraceworks]

Originally Posted by Jaredar

Looking to tune my car and trying to figure out if it's worth the risk. What did the issue end up being? KCLe90

There is no risk....if anything, xHP is better on your clutches when you use the line pressure bump option. If it senses your clutches starting to slip it will increase the line pressure to squeeze them tighter to stop them from slipping.

I've had xHP stage 2 for a few years now, I love it. My car runs 10's in the 1/4 with the rock transmission...no slipping or issues. Probably making close to 575-ish HP. I'm sure it would be slipping with the stock tune.

[Bimmer_Bro]

Originally Posted by iqraceworks

There is no risk....if anything, xHP is better on your clutches when you use the line pressure bump option. If it senses your clutches starting to slip it will increase the line pressure to squeeze them tighter to stop them from slipping.

I've had xHP stage 2 for a few years now, I love it. My car runs 10's in the 1/4 with the rock transmission...no slipping or issues. Probably making close to 575-ish HP. I'm sure it would be slipping with the stock tune.

I have actually never used the line pressure option. I assumed this was for only high hp applications. I should give it a try.

[StradaRedlands]

Originally Posted by Bimmer_Bro

Xhp is 100% worth it, don't hesitate. It will transform your car. Iv had mine installed for 5 years without a single issue. Just do a transmission service before you tune it. Then follow the break in procedure and your good to go.

I am XHP curious... worth it for my spouse's basic 528i commuter? I hate the way it lugs down around 1,200-1,500 RPM, but moving it to sport mode makes the shifts too high and too abrupt. So something that splits the difference would be nice. Would be good for this application? Do I need to buy the license and the Map tool (package)? I may be dull, but they don't specifically spell that out on their site.

[Bimmer_Bro]

Originally Posted by StradaRedlands

I am XHP curious... worth it for my spouse's basic 528i commuter? I hate the way it lugs down around 1,200-1,500 RPM, and sport mode makes the shifts too high and too abrupt. So something that splits the difference would be nice. Would be good for this application? Do I need to buy the license and the Map tool (package)? I may be dull, but they don't specifically spell that out on their site.

Yup you bet. I am on stage 3 but stage 2 might be better for you. There is also presets for D and S mode so you can tune as you like (anywhere from relaxed+ to sporty+)
You can also manually adjust shift points and shift speeds.
I personally hate Sport mode, I find it jerky and holds the rpm too high. I use D mode for daily use as I use the "relaxed" preset. Then the Manual mode I have set very aggressive for fastest up and down shifts. I never use S mode.

[StradaRedlands]

Originally Posted by Bimmer_Bro

Yup you bet. I am on stage 3 but stage 2 might be better for you. There is also presets for D and S mode so you can tune as you like (anywhere from relaxed+ to sporty+)
You can also manually adjust shift points and shift speeds.
I personally hate Sport mode, I find it jerky and holds the rpm too high. I use D mode for daily use as I use the "relaxed" preset. Then the Manual mode I have set very aggressive for fastest up and down shifts. I never use S mode.

That's exactly what I feel about sport (non manual) mode! So yeah, just looking for something that will continue to give smooth shifts, but raise the shift points a bit.

And I would need both components, the license and the maps?

[Bimmer_Bro]

Originally Posted by StradaRedlands

That's exactly what I feel about sport (non manual) mode! So yeah, just looking for something that will continue to give smooth shifts, but raise the shift points a bit.

And I would need both components, the license and the maps?

Yes with tunes you always need the license then which ever tune(map) you are after.
Just let the car naturally adjust before you start playing with all the custom settings.
Battery charger as you install is 100% needed.

[StradaRedlands]

Originally Posted by Bimmer_Bro

Yes with tunes you always need the license then which ever tune(map) you are after.
Just let the car naturally adjust before you start playing with all the custom settings.
Battery charger as you install is 100% needed.

Got it, thanks!