Glynn, I agree with you that it is not guaranteed that the problem will be resolved by just replacing the solenoids. However, considering the only fault coming up is the 3-4 shift problem, I think it is fair to say that there is a big chance that a new solenoid set would resolve the problem. If not, it is not a lot of money lost, compared to the complete mechatronic replacement or recon box. At least that is how I reasoned and luckily I was right (when I say me, that is me and RRPhil of course, who gave me a lot of help).

 MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Yes but a new mechatronic isnt that expensive, then theres the fluid to take into account too.
If it were mine it would get a new mechatronic and be done with it.

For info, the solenoid change solved the problem with another member having the same 3-4 shift error code. MY 2010 5.0 SC Galway green and sand interior!!
Have the Faultmate MSV2 Extreme to be tinkering with the settings etc. !!

Just for info, and i know its an e60 bmw but there is a vid of how to remove the mechatronic here

http://www.bimmerfest.com/forums/showthread.php?t=654634 There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

Just an update gents I've got a gearbox man looking at it thurs/fri this week. Will let you know what he finds. It's going to be the mechatronic unit I think from the more you guys have informed and the more I have looked into it.

Thanks Dave The difference between theory and reality is that in theory it will work.

Good luck, Dave. There's a chance that it's not as bad as you first thought!

Do keep us posted.

HNY to all  2006 4.2 SC
2019 Renault Zoe Dynamique Nav

Dave,

What was the outcome of this? Are you sorted? 2006 4.2 SC
2019 Renault Zoe Dynamique Nav

It's still been worked on. I've been away with work then holiday so will catch up with the shop on Monday from my last conversation with him it was pointing to a new gearbox. The difference between theory and reality is that in theory it will work.

Just an update for everyone. The car is coming back tomorrow. It's all done. In the end it had a full gearbox recon TC, Mechatronic unit, some plates and other parts I have forgotten. I decided to bite the bullet and just get it sorted so I will never have an issue again with the box. Two water pipes at the back of the engine where leaking as well so they have been changed. The guy commented today after his test drive how well she goes looking forward to having her back tomorrow.

Thanks. The difference between theory and reality is that in theory it will work.

Glad you got it sorted Dave.
And the big question £?.

£3900 for the work, all in I had a rad changed and it all serviced as well. Which isn't cheap but the guy who has done it is very skilled and I trust his work. I think that's one of the most important factors.

Dave. The difference between theory and reality is that in theory it will work.

Please can anyone help me to find the kit repair for the valve body 6Hp

JPAT are probably the best for ZF

http://www.jpat.co.uk/94%20ZF%206%206HP26%...d%204D.pdf

also used sussex auto parts in the past that were very good and also rebuilt my torque converter although i would still say JPAT as having the best knowledge on ZF.

http://www.sussexautos.co.uk/contact.php

Thanks for your help

no bother