hi all I have the oil changed to the differential from the workshop specializing in automatic transmissions ZF, I go back home and feel that at low speed in the intersections in the rounds on the right and left the rear whistles what I can control?

 

possible under or over fill? Take it back to the workshop and report your concerns, see if they help.

 

good morning to all I solved the problem by changing workshop and changing oil, I did suck and I found 1.6litri the manual says 1.9litri I put a 85/140 GL5