H,

I have a 2010 S60 and recently I've been having a few issues.
Firstly, I noticed that the car feels a little sluggish and when on the motorway my instant mpg drops quite suddenly with the car feeling like it's working harder. Then the car begins to feel bumpy, the steering can shake and it can pull to the left. This can last for a few miles and then stop. It can also start again mid journey. This happens at various speeds

The first time it happened the front left was really hot. Recently the front right has been very hot.

Any ideas what it could be? Sticky calipers? Warped discs? ABS?
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