ZF 5hp19 gearbox issue

[Sump]

E39 530i 2003 - 5hp19

Well figured out that my problem is 100% a transmission issue!

It jerks when coming to an agreesive stop. I will stop then half a second it will jerk going from 2 to 1 I imagine.

If I go into manual mode and keep it in gear one then do the stop it's fine and if I do the same for gear two its fine in manual mode.

Hmmmph!

One guy has said torque converter not unlocking another has said pressure not releasing!

Other things to note, on the ramp in neutral and the engine on the indy said there was too much resistance with the tyres moving forward in the air, he could stop them but there was more than expected.

Another note is every gear change is perfect apart from the 3 to 4 change which is harsher.

Any insights here!

No codes btw.

[Sump]

Everyone appears to say valve body tbh.

[Max M4X WW]

Not sure, sorry. But I'm sure my 540i doesn't use 1st EVER in D.

[Sump]

Im gonna be updated the transmission, then do the overhaul if it doesn't fix it.

[Pistom]

How many miles has it done. I had a similar issue with one that had done about 90k. The garage changed the tranny fluid and it was silky smooth after that.

[TheEnd]

I'd check the fluid level first incase it has been leaking.

[Pistom]

I don't recall being able to check the fluid on these boxes. I thought they were sealed for life with no dipstick.

[TheEnd]

Yep, there's no dipstick, it is a case of undoing the filler plug, and the oil has to be up to the bottom of the filler hole.

I know some people have put it down to the oil flowing away from the pick up under braking, and momentarily losing power until it flows back.

[Sump]

Fluid level is fine.

Reset the adpations via GT1 not much difference, wasn't expecting it.

Will use Autologic to update and clear egs adpations again and fuel adaptions.