This part is listed by BMW as BMW part number 16197244138 (16-19-7-244-138) and is described as Genuine BMW DEF Active Tank/Reservoir for E70 X5 3.5d, 35d (2008-2013).
Supersedes obsolete BMW part number 16197216923 (16-19-7-216-923).
This is a Genuine BMW EGR valve with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore
BMW Fitments:
X5 Series
E70 X5 (07-13) > X5 xDrive35d (09-13)
