N62 versus N62TU engine, any idea?
 

Does anyone know the difference between these two engines? (like from a BMW tech report or something?)

with the N64TU,TU= technology update.
as the same with the TRANNY ZF...PU=part update.

Do you know what the update was and when it was implemented?

TU = technical update
2 variants of N62(successor to M62TU) Valvetronic engine; 315hp 4.4 liter version and the 355hp 4.8 liter version. N62 are mated only to 6-speed automatic tranny.
4.4 liter 4.8 liter
Power @ rpm, SAE net 315 hp @ 5400 355 hp @ 6200
Torque @ rpm 324 lb-ft @ 3600 360 lb-ft @ 3400

Bentley - Product Familiarization Pg 010-8 and 010-9

Anyone know when it was implemented in the production run?

TIS Bulletin that lays out the N62TU revisions
 

This TIS bulletin that lays out the N62TU revisions from the N62:



https://www.newtis.info/tisv2/a/en/e...engine/2KFcof4

Great information in that bulletin

Seems worse IMO lol... no magnesium diva intake, no dipstick, "intelligent" alternator/battery coding, etc...

I juat brought one of this engine home yesterday. To upgrade my X5. But I will be using my engine management and the intake from my X5. I will just have to work with tuning it. Only pros is better internals and the fact thats is a 4.8l. For the SC.

N62TU introduction schedule:

E60, E61: from 03/2007

E63, E64: from 09/2007

E65, E66: from 09/2007

E70: from 09/2006

I wonder how easy it is to delete secondary air system in 4.4i dme. I know its not a problem if you're going from 4.8 to 4.8tu, but if you're keeping the same management it'll be something you'll have to tackle as well. Are you also going to be tapping the heads for the headers?

I Purchase a 2007 from an X5 mine has a dip stick.