I read a post here regarding how to resolve the E-Diff problem I have. Having tried all the ideas I am now left with replacement. Reading the article 2 part numbers were listed EX53-4C118-AD and HY32-4C117-AD

I bought a second hand HY32-4C117-AD and proceeded to replace mine today only to find I have EX53-4C118-AD which is mounted in the boot/trunk above the fuse box. I am sure my EX53-4C118-AD is burnt out judging by the smell.

My question here is where and what is HY32-4C117-AD? Do I need this also if so where is it mounted? Current: 2014 4.4 TDV8 Autobiography 110k miles......will it make the 200k like the Boss did1
Previous: 2007 3.6 TDV8 200k miles (The best, gone but not forgotten)

Hi I have a similar problem ... e-diff not available comes n goes had new battery fitted and still there ... can I ask how did you get to fit the new module ... also does it need programmed or wasn't plug n play??