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      05-01-2019, 07:40 PM   #2707
Street of Rage
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Quote:
Originally Posted by grey90 View Post
N52 engine support?
If you have a ZF6 transmission, it should. Check the link below to verify.

https://www.xhpflashtool.com/#support
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      05-01-2019, 08:10 PM   #2708
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Originally Posted by type-dRew View Post
I wouldn't worry about harsh shifts. I'd bet the smooth shifts are wearing your trans more than the quick uncomfortable shifts.
Lol are you for real?
Absolutely. The faster the shift, the less wear on the clutch.
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      05-03-2019, 10:46 AM   #2709
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Quote:
Originally Posted by type-dRew View Post
Absolutely. The faster the shift, the less wear on the clutch.
yeah but there is a difference between a fast smooth shift, compared to a mechanically bucking harsh shift
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      05-04-2019, 09:36 PM   #2710
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Your at the threshold for clutch A so you need to do some work ASAP. The adaption values are only indicator of clutch wear given the rest of the mechatronics are perfect and it is never the case.

At least 90% time solenoids go bad and you end up have high adaption values. I was at 400 for both Clutch A and E and now i am at 50 for the both after replacing the solenoids .



Quote:
Originally Posted by mfish123 View Post
On the "going through the gear"s logs, where the car upshifts in the meat of the mid range torque the shifts are slower than if I shift at the top of the RPM band and there is a slight RPM spike after it gets into the next gear. We see the DME hold off on fully ramping the timing back up fully until the RPM spike settles which is probably a good thing for the tranny. Whereas if I upshift at the top of the RPM band the shift is a lot quicker and there is no post shift RPM spike

Is this expected behavior? Possibly indicative of the tranny being worn out? Maybe I should increase the 2 --> 3 and 3 - > 4 upshift sliders in Xhp so it upshifts higher in the RPM band to prevent this? Maybe something engine tuning can help with?

Car has 83K miles on it. Put new tranny fluid and mechatronics seal in it around 75K miles Screenshot of adaptation values included too.

3 "going through the gears" - https://datazap.me/u/mfish123/3-going-through-gears-17

2 more "going through the gears" - https://datazap.me/u/mfish123/2-more...hrough-gears-1

2 top of RPM band upshift - https://datazap.me/u/mfish123/2-3rd-4th-upshifts
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      05-05-2019, 08:12 PM   #2711
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I have a 08 335i. My car is said to need a new transmission, so I'm biting the bullet [multiple e-ratio monitoring failure codes].

I need to flash back to stock correct? with a new transmission and TCU my mechanic says my license wont work. I've literally spent the past hour trying to find the flash to stock options and cannot.
Any help with this ? Car supposed to be dropped off at 9am tomorrow morning.

thanks again.
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      05-06-2019, 04:48 AM   #2712
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Quote:
Originally Posted by turbohugh View Post
I have a 08 335i. My car is said to need a new transmission, so I'm biting the bullet [multiple e-ratio monitoring failure codes].

I need to flash back to stock correct? with a new transmission and TCU my mechanic says my license wont work. I've literally spent the past hour trying to find the flash to stock options and cannot.
Any help with this ? Car supposed to be dropped off at 9am tomorrow morning.

thanks again.

Click on the top left, open misc menu, press flash stock.
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      05-06-2019, 06:44 AM   #2713
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Quote:
Originally Posted by 924er View Post
yeah but there is a difference between a fast smooth shift, compared to a mechanically bucking harsh shift
No worries...that calibration is running on thousands of 335i cars for summarized millions of miles now. We drive our dev-car regularly on the race-track as well and watch adaptions closely. There's absolutely no evidence of any premature wear.

If there was, we would adapt the calibration.
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      05-06-2019, 07:24 AM   #2714
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Quote:
Originally Posted by Orb View Post
Your at the threshold for clutch A so you need to do some work ASAP. The adaption values are only indicator of clutch wear given the rest of the mechatronics are perfect and it is never the case.

At least 90% time solenoids go bad and you end up have high adaption values. I was at 400 for both Clutch A and E and now i am at 50 for the both after replacing the solenoids .
Very true, with the Exception of the E-Clutch. Thats actually the bushing going bad.
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      05-07-2019, 08:17 AM   #2715
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Is it possible to change rear end gear ratio in xhp?
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      05-07-2019, 08:18 AM   #2716
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Quote:
Originally Posted by Orb View Post
Your at the threshold for clutch A so you need to do some work ASAP. The adaption values are only indicator of clutch wear given the rest of the mechatronics are perfect and it is never the case.

At least 90% time solenoids go bad and you end up have high adaption values. I was at 400 for both Clutch A and E and now i am at 50 for the both after replacing the solenoids .
Where did you get your solenoids from? I haven't found many options.
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      05-07-2019, 08:31 PM   #2717
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I'm planning on flashing MHD and xHP tonight and just have a couple of questions if anyone could help:

1. Do I need to do them in any specific order? (e.g. MHD first)

2. I'm struggling to decide between xHP stage 2 and stage 3. A lot of my driving is around town with passengers so I'm concerned the D mode in stage 3 might be too harsh - does anyone have any suggestions with which way to go?

How much difference is there between the D/S/M modes in 2 and 3?

Thanks!
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      05-07-2019, 10:46 PM   #2718
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Quote:
Originally Posted by NZD54 View Post
I'm planning on flashing MHD and xHP tonight and just have a couple of questions if anyone could help:

1. Do I need to do them in any specific order? (e.g. MHD first)

2. I'm struggling to decide between xHP stage 2 and stage 3. A lot of my driving is around town with passengers so I'm concerned the D mode in stage 3 might be too harsh - does anyone have any suggestions with which way to go?

How much difference is there between the D/S/M modes in 2 and 3?

Thanks!
Quote:
Originally Posted by NZD54 View Post
I'm planning on flashing MHD and xHP tonight and just have a couple of questions if anyone could help:

1. Do I need to do them in any specific order? (e.g. MHD first)

2. I'm struggling to decide between xHP stage 2 and stage 3. A lot of my driving is around town with passengers so I'm concerned the D mode in stage 3 might be too harsh - does anyone have any suggestions with which way to go?

How much difference is there between the D/S/M modes in 2 and 3?

Thanks!
Doesn't matter the order. If needed you could always go back and change an option if needed. Changing options takes a minute to flash. Initial flash takes like 20 mins.

Stage 3. D mode is perfect for every aspect of driving. I love it. S and M mode are aggressive. They don't like to be going slow. If in S or M mode you need to be getting it or it'll shift hard. Maybe anticipating the power?
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      05-08-2019, 02:20 PM   #2719
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Quote:
Originally Posted by NZD54 View Post
I'm planning on flashing MHD and xHP tonight and just have a couple of questions if anyone could help:

1. Do I need to do them in any specific order? (e.g. MHD first)

2. I'm struggling to decide between xHP stage 2 and stage 3. A lot of my driving is around town with passengers so I'm concerned the D mode in stage 3 might be too harsh - does anyone have any suggestions with which way to go?

How much difference is there between the D/S/M modes in 2 and 3?

Thanks!
If anything I wish D was more aggressive on stage 3. There is nothing harsh about it, it just feels like stock with quicker shifts.

And a lot, D, S and Manual are all completely different from each other, its actually pretty fun having so many options for how it drives.

I flashed XHP first when I did them at same time, but I doubt it matters. Just make sure you select XHP flashed trans on mhd when you flash if you're N54.
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      05-09-2019, 12:52 AM   #2720
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Quote:
Originally Posted by type-dRew View Post
If anything I wish D was more aggressive on stage 3. There is nothing harsh about it, it just feels like stock with quicker shifts.

And a lot, D, S and Manual are all completely different from each other, its actually pretty fun having so many options for how it drives.

I flashed XHP first when I did them at same time, but I doubt it matters. Just make sure you select XHP flashed trans on mhd when you flash if you're N54.
Thanks for the input guys. Flashed both MHD and xHP today - went with stage 3. Have only driven a couple of miles so far to test it out but I'm impressed at how smooth D mode is, and how much faster the shifts in M are. Night and day!

Ended up flashing MHD with general 6AT selected, then xHP, then re-flashing the map on MHD with xHP tuned transmission selected (second MHD map change only took one min).
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      05-09-2019, 12:02 PM   #2721
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Quote:
Originally Posted by RBT-Tuning View Post
Quote:
Originally Posted by turbohugh View Post
I have a 08 335i. My car is said to need a new transmission, so I'm biting the bullet [multiple e-ratio monitoring failure codes].

I need to flash back to stock correct? with a new transmission and TCU my mechanic says my license wont work. I've literally spent the past hour trying to find the flash to stock options and cannot.
Any help with this ? Car supposed to be dropped off at 9am tomorrow morning.

thanks again.

Click on the top left, open misc menu, press flash stock.
Quote:
Originally Posted by RBT-Tuning View Post
Quote:
Originally Posted by turbohugh View Post
I have a 08 335i. My car is said to need a new transmission, so I'm biting the bullet [multiple e-ratio monitoring failure codes].

I need to flash back to stock correct? with a new transmission and TCU my mechanic says my license wont work. I've literally spent the past hour trying to find the flash to stock options and cannot.
Any help with this ? Car supposed to be dropped off at 9am tomorrow morning.

thanks again.

Click on the top left, open misc menu, press flash stock.
I think i was sleepy-stupid because the next morning i read the docs for 3 minutes while drinking coffee and got it done .
I love the product and the documentation is very good.
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      05-09-2019, 12:04 PM   #2722
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Quote:
Originally Posted by RBT-Tuning View Post
Quote:
Originally Posted by turbohugh View Post
I have a 08 335i. My car is said to need a new transmission, so I'm biting the bullet [multiple e-ratio monitoring failure codes].

I need to flash back to stock correct? with a new transmission and TCU my mechanic says my license wont work. I've literally spent the past hour trying to find the flash to stock options and cannot.
Any help with this ? Car supposed to be dropped off at 9am tomorrow morning.

thanks again.

Click on the top left, open misc menu, press flash stock.
Quote:
Originally Posted by RBT-Tuning View Post
Quote:
Originally Posted by turbohugh View Post
I have a 08 335i. My car is said to need a new transmission, so I'm biting the bullet [multiple e-ratio monitoring failure codes].

I need to flash back to stock correct? with a new transmission and TCU my mechanic says my license wont work. I've literally spent the past hour trying to find the flash to stock options and cannot.
Any help with this ? Car supposed to be dropped off at 9am tomorrow morning.

thanks again.

Click on the top left, open misc menu, press flash stock.
Thanks . I think i was sleepy-stupid because the next morning 1 coffee and 3 minutes into the easy to follow documentation i got it done. I love the product and the documentation.
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      05-11-2019, 11:49 AM   #2723
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Garage List
Just to clarify the "wear" issue on shifts. Smooth shifts are because the clutches are slipping more to provide a smooth shift. To me this is the definition of wear related to shifts. Harsh shifts can break hard parts but very little difference in wear on hard parts. Unless your making more than 600 ft/lbs of torque I doubt you will break anything on an upshift. Bushings, bearings, solenoids, and seals will just wear or age over time and mileage. As with any mod using xHP may expose your "weak link"

When I say harsh shifts can break hard parts it's not specifically this transmission but something I owned before that twisted out the torque converter splines after installing an aggressive shift kit (valve body mod)

xHP has specifically designed their software to improve the transmission shifts within reasonable limits to keep the transmission intact. Pushing anything to the limit will naturally cause more wear and tear and the possibility of failure.
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      05-13-2019, 01:51 PM   #2724
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Quote:
Originally Posted by RBT-Tuning View Post
If you have additional questions, feel free to ask here directly, shoot us a PM, contact us through our Website or follow us on Facebook!
Hi
I have already used "contact us" option on your website but I just found this thread so maybe here I will get faster answer.
I have flashed stage 1 in my BMW e91 320D M47D20O2 VU31 (TCU HW: 7556039). Before I will buy stage 2 I want to ask:
1) Is Gear display turned on in version Stage2 v1.0? In stage 1 and 3 there is a choice to make between v1.0 and v1.1. I'm asking because it's working in my car and I want to keep it turned on.
2) Are you planing to do some future updates for this gearbox? I know that this gearbox is very old, I'm just curious.
greetings
Mateusz
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      05-20-2019, 12:13 AM   #2725
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Quote:
Originally Posted by RBT-Tuning View Post
Very true, with the Exception of the E-Clutch. Thats actually the bushing going bad.
Clutch E bushing is weak point and it is a hit or miss. ZF had to change material in the bushing to comply to EU regulations so many car got affected by premature wear. Clutch E bushing wear causes a significant leak so it typical burns up quickly with all the other related issue. Most people will be okay with solenoids update but at 140KM it time for new mechatronic assembly. if one want to get 300KM out the transmision
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      05-20-2019, 12:25 AM   #2726
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Quote:
Originally Posted by type-dRew View Post
Where did you get your solenoids from? I haven't found many options.
I changed the Mechatronics as it was lower risk than doing it twice. You can get solenoids and the foam strip from any ZF dealer. The solenoids are below and the foam strip is hard to find but I listed a vendor below. The adoption after the install has to be done to the letter or your going to have issues. It take 1K-2K miles for the adaption to settle.

https://www.fcpeuro.com/products/aut...e-106829804601

https://zftranspart.pinnaclecart.com...product&id=148

https://www.thectsc.com/products/sol...ft-38-115.html
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      05-20-2019, 08:01 AM   #2727
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Quote:
Originally Posted by Orb View Post
I changed the Mechatronics as it was lower risk than doing it twice. You can get solenoids and the foam strip from any ZF dealer. The solenoids are below and the foam strip is hard to find but I listed a vendor below. The adoption after the install has to be done to the letter or your going to have issues. It take 1K-2K miles for the adaption to settle.

https://www.fcpeuro.com/products/aut...e-106829804601

https://zftranspart.pinnaclecart.com...product&id=148

https://www.thectsc.com/products/sol...ft-38-115.html
Thank you
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      Yesterday, 12:11 AM   #2728
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My car is behaving strange with stage 3 in sport mode.
At full throttle it shifts at low rpm, thus reducing acceleration. You can see 3rd gear starts at 2k rpm and the throttle is to the floor.
It happen only from time to time and in full throttle situations.
What could be the problem? OEM soft is ok. Shall I try stage 2?



https://youtu.be/cWnaVKm0OUY

Last edited by Hansov; Yesterday at 12:29 AM..
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