Note: it's interesting that according to realoem, the stock rear differential for my 2015 335ix automatic takes 1.5 liters of BMW fluid part number 83222295532. Tightening torque on plug is 60 Nm (44ft-lb)
It's usually a suction through the fill hole procedure. If you use another fluid then check for that. I don't believe there is an upside to believing marketing claims from fluid manufacturers.įYI- the Bentley manual says that BMW recommends only using rear differential fluid with SAF-XO designation. I'm a big believer in using BMW fluids or fluids from manufacturers who make them for BMW like ZF transmission fluid or Shell Austria Transfer Case fluid (both available from FCP Euro). Would Castrol Syntrax Longlife 75W-90 be alright for the rear diff? Its around 30EUR for 2 liters, so quite a different price. I want to change the rear diff oil in my 2015 F31, found the original oil (83222295532) on realoem, it costs a fortune (or, around 100EUR for 1.5 liters) 😅
