Where did you buy the sensor?

I only know my 01' 3.0i, has a redesign over the sensor head, just like the one on the right in your picture. But they're plug & play. I bought it from Bavauto, so not sure if the one you have is an aftermarket.

Good luck!!

__________________
01' 3.0i E53 (M54) with 164,000 miles
07' 3.0si E83 (N52) with 134,000 miles
08' 3.0si E70 (N52) with 91,000 miles