AR25/35 is a 4L-30E
there are two bellhousing patterns for Omega B - this first is for all of the petrols and all of the 4-cylinder diesels. The second is for the 6-cylinder BMW diesel
the 5-speed auto was only fitted to the 6-cylinder diesel. No-one on here has ever seen one.
Any Omega B auto transmission will expect to have a CANbus link to the engine controller and may not work without, your DTi probably hasn't got this. You may find that an auto transmission from Omega A can work without. ( these are still 4L30 )
if you must have diesel, the safest bet would be a GM 180 transmission, which isn't electric, but only 3-speed and non lock-up.
Great info, thanks, and yes AR25=4L30E.
So then I won't use box from a 6cyl Omega (for the better since I buy used) and then I guess I don't have to bother with the 5-speed either.
Did I read you right that an Omega A box
might work without but might just aswell not work?
If I scrap a complete petrol engined Omega B can I then use its CANbus link on a DTI, or does it only work on petrol engines?
I already have bought a 1999 Omega 2.0DTI and wouldn't trade it for anything but a 2.2DTI (or newer). Common-rail is superior jugde after my priorities and I just don't like gassers much,
That leavs me with having to get a bellhousing from a 4L30E welded on to a TH180 done by a professional, if I want it on the DTI, am I right? I want to recollect that will cost me €150, at least.
The second option - to get an Omega A - might involve a car electrician for, what, an hours work?
Third option (
if CANbus link is compatiable) will definately need a car electrician but for more than €150 worth of work (that's two hours)? Maybe just one hour at an Opel specialist if the latter is a must. Is it?
