[jmmdm2]

I apologize if the answer is easily attained by the appropriately worded search…

I’m trying to determine the version of the N63 in my M550. Based on the limited info I’ve found using generic VIN decoders, I believe it’s the TU2 or TU3. There’s more to the code, correct?

I found: BMW N63B44M3 - N63TU3 Technical Update 3 as the release just before the 2020 power increase. I’d like to look at the block but it seems a bit tight in that area. Is there a VIN decoder that would provide a definitive answer?

VIN: WBAJB9C59KB287563

I’m considering the BM3 Stage 1 tune and I was doing some homework relative to engine stability. I ran the BM3 N20 Stage 1 tune on my 2015 (post timing chain issue) 528. Ran it it over a year without issue.

Thanks for any info this group can provide.