Scary Shifting! Opinions wanted!

[TristanTellone14]

Recently just had a shop replace my leaking trans oil pan, filters and fluid on my 2011 DCT E93. Ever since this was done my car is HATING first gear when it’s cold. Bucking like crazy in first gear from 1k-2500rpms (only when cold). Once the car is warmed up it is perfectly fine leaving from a stop. I now only start from a stop in 2nd gear… Another issue I have notice is not really a buck, but a slight jerk when 70-100% throttle and up shifting. When driving let’s say merging highway speeds/rpm’s 3k-5k, shifts feel completely fine. No codes anywhere as expected when reading car.

Anyone have any idea what could be going on with this issue?

[exVtekGuy]

Sounds like they didn't fill the tranny properly or used wrong fluid. Ask the shop how much fluid they filled with what.

[spammysammich]

https://www.m3post.com/forums/showthread.php?t=746269

Read. If they didn't invoice you for more than 5L for a drain,filters and fill they shorted your fluid fill.

[TristanTellone14]

Originally Posted by spammysammich

https://www.m3post.com/forums/showthread.php?t=746269

Read. If they didn't invoice you for more than 5L for a drain,filters and fill they shorted your fluid fill.

From invoice:
AT Oil Pan
AT Filter
AT Filter
Dual Clutch Trans Fluid DSG 8100 - 1 Liter x7
AT Oil Pan Bolt

[TristanTellone14]

Originally Posted by exVtekGuy

Sounds like they didn't fill the tranny properly or used wrong fluid. Ask the shop how much fluid they filled with what.

From invoice:
Dual Clutch Trans Fluid DSG 8100 - 1 Liter x7

[spammysammich]

Next thing to ask them is if they think the car will need its adaptations reset. That can be done in ISTA I believe.

[TristanTellone14]

Originally Posted by spammysammich

Next thing to ask them is if they think the car will need its adaptations reset. That can be done in ISTA I believe.

Will ask them about this, hopefully they did not already do this and this could of be a fix! Have seen this in other threads whilst researching.

[omgzirra_exe]

I am more or less certain they didn't fill it while at temperature. The DCT fluid doesn't completely drain out, so there will be some remaining, and you won't get the proper amount on the initial fill, especially with the temperatures being cold. On the second fill attempt, that's when you go and top it off completely at a higher temperature.

The only time an adaptation will even help is if you change your clutch packs.

[TristanTellone14]

Originally Posted by omgzirra_exe

I am more or less certain they didn't fill it while at temperature. The DCT fluid doesn't completely drain out, so there will be some remaining, and you won't get the proper amount on the initial fill, especially with the temperatures being cold. On the second fill attempt, that's when you go and top it off completely at a higher temperature.

The only time an adaptation will even help is if you change your clutch packs.

Alright so sounds like I should get temps up then do a top up with a liter or two? What temps should I be looking for on top up?

[spammysammich]

It’s right there in the DIY I linked

[TristanTellone14]

Originally Posted by spammysammich

It’s right there in the DIY I linked

Awesome! Thank you.

[Redd]

Originally Posted by TristanTellone14

From invoice:
Dual Clutch Trans Fluid DSG 8100 - 1 Liter x7

Try stock BMW DCT fluid?

[amrazM]

trans isnt filled right, im in queens new york city if you want to do this over the right way. there are also adaptations to be done.