i have a rattling noise primarily from my rear left wheel whenever i run over reflectors or rough road etc. My mechanic can never hear it but it concerns me because it doesn't sound very healthy at all. Its in all wheels i think but worst in the rear left. I'm not sure what a healthy V70 feels like to drive so i don't know if its affecting the ride.

Also i know need a new brake booster but in addition, the first bump i hit every time i drive, my ABS and DSTC messages appear. They never show up until i hit something. could i have a loose connection to my ABS module or is the module more likely in need of a rebuild/replacement.

3rd concern. My transmission is FINALLY running fairly well.... kinda....(i haven't had a transmission service message for weeks) BUT.... When it gets really hot, there seems to be a bit of a tug on each gear change. It changes, and then jolts gently just after each change. I'm throwing a TCM code reporting that the "Lock-up function is slipping or not engaged" Is this tugging the symptoms of this code? I think i have a TCM or ETM oftware upgrade available (I get different info from different dealers). Is this software likely to fix this? Oh and while i'm at it, how do i make sure my cooling system is running as it should? Is there any particular coolant i should be using? and how do i drain a radiator?

Please excuse me for being continually ignorant about my car but i AM learning......

 

Have the Rear swaybar end links checked.

The transmission might still be from the ABS codes.

 

I have a similar noise on all 4 wheels. It's time for brakes anyway and if the spring/clip is the problem, it'll get fixed.

Its a very unhealthy sounding wheel rattle, somewhere inbetween small stones in the hubcap and a pair of pliers bouncing on the wheel rims.