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Discussion Starter #1
Hi!

Any of you guys know what differences there are between engine N62b48A and N62b48B ?

In my X5 4.8is there is a N62b48A, and I need to swap it for a new engine. Most engines I find are N62b48B, so I am wondering if there are any differences that will prevent me from doing a simple swap.
For instance, can I mount N62b48B directly to my tranny (GA6HP26Z) ? Would N62b48B require change of "brains" and other modules?

I think N62b48B typically is in 5,6 and 7, while N62b48A is in X5 4.8is, but I may be mistaken..

Any help would be highly appreciated!
 

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The only thing I can think of is that in 2005 and 2006 there were 2 versions of the N62b48. It appears the E53 X5 is the only one that got the A from 2005-2006 and all other cars like the E60- E65 got the "B" variant from 2005 onwards. Also the new X5 E70 got the "B" beginning in 2007. So maybe the "A" was a holdover for the 05-06 4.8is?
 
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