I had the infamous control arm squeak on a previous suv and my mechanic suggested a quick fix since the ball joint which was a "lifetime sealed bearing" must have gotten moisture inside the boot: poke a hole in the boot and shoot a squirt of wd40. Obvouisly as an "end of life" scenario to get a few months of use and maintain my sanity. The ball joint was tight just lost its lubricant and wow it was insane. Every tiny bump in the road squeaked.


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2011 E70 • N55 (me)
2012 E70 • N63 (wife)