I've got a strange droning sound - worse on the front offside of our 54-plate Audi A4. It similar to the noise that old Land Rovers make when they drive past. I've been out with my mechanic friend and he thought it was tyre-related but there was nothing obviously wrong. First noticed about 4 months ago. We decided to leave it and just see if it got worse or more symptoms emerged.
I've just noticed that the nearside front wheel is significantly dirtier than all the others. Could there be a link? I thought I'd check whether the dirt was dust or grease as that could point to it being something other than brake dust (CV boot?).
Any bright ideas? I'm not massively worried but it's annoying and I start thinking about it again every time we contemplate a long journey in it.
I've just noticed that the nearside front wheel is significantly dirtier than all the others. Could there be a link? I thought I'd check whether the dirt was dust or grease as that could point to it being something other than brake dust (CV boot?).
Any bright ideas? I'm not massively worried but it's annoying and I start thinking about it again every time we contemplate a long journey in it.