If you do decide to order a new intermediate plate then it might be worth mentioning that you should really also replace the bridge seal

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Hi Phil,

Thanks for this, I have asked my dealer in Holland for price and delivery time for the parts. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

While waiting for price and delivery time of the mechatronic parts, I have updated the Engine ECU software as well today. Now I know what to look for it went quite quickly. Engine runs a bit smoother and I didn't have the CEL on at the end of the drive (short drive though).

Anyway, didn't solve the gearbox issue of course (although I did hope that it would).

So the next step is getting all the parts that Phil recommended and I will also try to get a Delay Accumulator Piston (a possible problem causer for the 3-4 shift issue) and the solenoid that that engages the 4th gear.

Will keep you all posted on progress. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Phil, I am talking to an automatic gearbox outfit in the Netherlands as the dealer can't supply all the parts (especially the delay piston and shift valve damper as well as the sheet). They are of course trying to sell me a lot more as they don't sell those parts loose (they say they will take them from an old Mechatronic).

Would you know an outfit that could supply the parts I need ???? MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Your Lucky Eb,

According to mine i have no engine updates or gearbox ones for my little TD6

May chase this up with BBS tonight though as its a little worrying... FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.

But you can get Pete Bell performance flash files loaded Or do the ecotune on the gearbox ! MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Does anyone know if Pete Bell does gearbox upgrades for the SC? 
07 Supercharged - Still breaking her in!

Boot soundproofing part 1 - http://www.fullfatrr.com/forum/topic15612.html
Custom exhaust - http://www.fullfatrr.com/forum/topic15296.html
18" wheels for Brembo equipped cars - http://www.fullfatrr.com/forum/topic15052.html

As far as I understand he only does upgrades to diesel engine management. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Using the MSV2?? I saw about the PB maps so thought he must offer discount on them as well.

I've done the nav on the move bit which took about 30mins and spent another 2 hours going thru EVERY ecu I could for her which was fun but i did download all the firmwares i could lay my hands on...

Is it PB that does the ecotune on the gearbox or the german company as i guess they just charge you for the firmware file? FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.

The ecotune has nothing to do with PB as far as I know.

The Performance Flash File Loader loads "upgraded" maps into your ECU and those maps come from PB if I understand it correctly. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Where do the ecotune ones come from?? FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.

No clue. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

BBS post here i come! Though i tend to feel its a tumbleweed area their forum  FFRR MY06 facelift With TDV8 Alloys Zeros/ATR's
Mantec Sump Guard, Rigid Load liner, MY10 BT upgrade.

ebajema wrote:

Phil, I am talking to an automatic gearbox outfit in the Netherlands as the dealer can't supply all the parts (especially the delay piston and shift valve damper as well as the sheet). They are of course trying to sell me a lot more as they don't sell those parts loose (they say they will take them from an old Mechatronic).

Would you know an outfit that could supply the parts I need ????

The catalogue of the supplier that I use here in the UK (http://www.jpat.co.uk/6HP26.pdf) lists the seals and the intermediate sheet but not the individual valves. It was certainly ZF’s original intention to only supply the valve blocks as complete assemblies though these policies sometimes change as the product gets older. Should I contact JPAT on your behalf and make some enquiries? I could get a quote for the seals/plate at the same time. If we draw a blank on the individual valves I could always send you mine to try.

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So just to recap -

The 3-4 shift is achieved through the engagement of the E-clutch while the B-clutch is released. The E-clutch then stays engaged in 5th and 6th gears too so the fact that the transmission seems to perform okay in these higher gears seems to indicate that there isn’t an issue (either mechanical or hydraulic) with the E-clutch itself. So the problem seems to relate to the actual period of engagement of the E-clutch and the delay accumulator valve is there to act as a damper volume to modulate the pressure rise specifically during this engagement period. It seems sensible therefore to examine this component carefully to check the spring and the free movement of the piston in its bore. Other primary components involved in the 3-4 shift are Shift Valve I and the on-off MV1 solenoid (with the black cap). These should also be visually checked and preferably have their performance verified by substitution.

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Phil

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Hi Phil,

Thank you very much for your reply. The components you mention are exactly the ones that I am asking for as based on your and other info, this makes the most sense to me as well.

My feeling (also based on some of the stuff I read online with other ZF 6HP-26 users) is that it is either dirt (metal particles), machining chip(s), spring or wear/burr on the above mentioned components.

The fact that it only happens during "coasting" and not under acceleration and only on the upshift, not the down shift makes me agree that these are the most likely components to investigate.

If you could be so kind as to talk to your supplier. The type plate of the gearbox is attached and I read : Getriebe no. 0184228 and serial no. 1068 020054

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