View Single Post
      03-09-2018, 03:46 PM   #4
ewicky
Lieutenant
United_States
206
Rep
525
Posts

Drives: '07 335xi 4D AT
Join Date: Jan 2017
Location: Seattle, WA

iTrader: (0)

I had a clunking that felt like hesitation/binding but only while turning sharp and accelerating, such as pulling out of driveway or taking a free right on red. Thought maybe it was suspension. I changed the tcase fluid with Redline MT-90 75W90 GL-4 Gear Oil and it was immediately fixed. I assume I had a factory fill, which was over 110kmil old. Don't use GL-5 fluid, even though the bottle will say it's compatible. GL-5 is designed for gears only, not clutches. It's too slippery for the clutch. GL-5 is great for open diffs.
Appreciate 0