Thread: TD6 reliability gear box

Originally Posted by fraser130

Just to throw a spanner in the works here, I bought mine with 236k on it and it had had the trans rebuilt by a&b not long before...which was why I bought it. It now has 280k on it and the trans just had a "spectacular failure"
No warning, just lost drive on the way home from work after a few shedders when it down-shifted as I was slowing for lights, the TC had completely disintegrated, and destroyed the pump in the process. I have been really good with the servicing, and there was no particles in the fluid at filter changes.
This time I took it to another Trans specialist (near melb Airport) drive in-drive out was $6500 I hope it's all good from now on......

I did here some talk about a supplier of TC rebuilds that was suffering from lots of failures....
Cheers,

Fraser

This is very off-putting...

Almost makes the L322 less reliable than the P38... at least the known major issues with the P38 wouldn't leave you stranded

Yeah its one of life conundrums.
Great car let down by inferior mechanicals(GM Box and Transfer case).
As I near retirement age I'm wondering if its worth buying one or not.Cant afford a later model(2006-2009). Dont really want a disco TD5 or a D3.
What to do???
What to do???


cheers

I think the L322 the pick of all the RR's. It is a truly fine looking car

Someone somewhere must be able to rebuild these gearboxes successfully.

Maybe import one from Ashcrofts?

Still waiting to get my car back.....

But does anyone know if the sonnax kit for sleeving the valve body puts a sleeve in the valve for locking the torque converter? Knowing my luck it doesn't and that's my issue......

I've read on one of the bimmer forums about a company in Germany that uses a different ecu so that the converter locks up a lot earlier.
You only swap the ecu and thats it.
Sorry I didn't bookmark the page tho.
Maybe throw the question onto ffrr.com,pretty sure it was on there as well.

cheers

Originally Posted by jsp

Still waiting to get my car back.....

But does anyone know if the sonnax kit for sleeving the valve body puts a sleeve in the valve for locking the torque converter? Knowing my luck it doesn't and that's my issue......

IIRC that is true, and that is why I ended up with a new valve body, upgraded materials etc apparently.

JC

Originally Posted by disco gazza

I've read on one of the bimmer forums about a company in Germany that uses a different ecu so that the converter locks up a lot earlier.
You only swap the ecu and thats it.
Sorry I didn't bookmark the page tho.
Maybe throw the question onto ffrr.com,pretty sure it was on there as well.

cheers

Declan is the first here to give it a try.... Ecotuning the TD6 gearbox

You still need healthy internals or the pressures will be too low.

ALL of the 5L40E issues are caused by low pressures; caused by excessive clutch clearances and material blocking the filter, causing low pressures, causing more wear and slipping, destroying the lockup clutch, more material in the filter, causing more slipping and heat and wear on the valve body bores etc etc

They just head down a path of destruction slowly from when new.

JC