Transmission Heat Exchanger, BMW - F10 550i, F06/F13 650i

This part is listed by BMW as BMW part number 17217638580 (17 21 7 638 580) and is described as the transmission heat exchanger for F10 550i, F06 650i GranCoupe, and F12/F13 650i models with the N63 and N63TU engine. A blocked heat exchanger will cause lubrication problems in the transmission, leading to hesitating shifts, poor shifting, or even limp mode if the transmission shuts down. Transmission problems can often be traced to this cooler and not the transmission itself. The heat exchanger can be cleaned but if the problem persists a total replacement is the only option.

This is a Genuine BMW transmission cooler 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.

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.

BMW Fitments:

5 Series
F10 / F11 (11-16) > 550i
F10 / F11 (11-16) > 550i xDrive
6 Series
F12 / F13 (12-18) > 650i
F12 / F13 (12-18) > 650i xDrive