Angle/collar gear/sleeve, haldex AWD. Hundreds of thousands of AWD Volvo have this issue yet Volvo has never taken action or recalled part. This is just one of many issues thousands of Volvo's have. But the AWD system non functioning due to stripped teeth caused by rust because of inadequate grease/lube etc. On thousands of vehicles ranging from their small sedans to SUV's should be something. They have even updated the angle gear/collar sleeve with one that has "hardened" teeth, but no recall on a part of the vehicle that is suppose to always function. A lot were lucky enough it happened while still under warranty. But getting stuck/stranded in snow because your vehicle is only 2 wheel drive when its suppose to be AWD. I did not find out my AWD did not work until I had gotten stuck in the snow. Turns out hundreds if not thousands of people had to find out this same way. I believe Volvo has just been lucky no one has died yet due to failed AWD system. I am not certain about what conditions need to be met before a recall is done. This is just one of the issues with Volvo's. I am not sure on the exact date my AWD system stopped working because driving on anything other than snow, or ice you cannot tell. But a simple search on the internet and hundreds if not thousands of people starting early as 2000's to most recent as 2019 having same issues, some more than once, and a few coming up with their own way of fixing Volvo issue. But photos can be found all over the web. Also Volvo sells these advertised as AWD when in fact it is fwd all time, until front tires lose traction which only then do the rear wheels engage. Yet can break or malfunction even though they only ever come on 20-30% of the vehicles total miles driven. Not sure of AWD definition but I always thought it stood for all wheel drive, not front wheel drive; all wheel drive when front wheels lose traction.

- Aurora, CO, USA