I've taken it to two garages. The first put it on the ramps, poked random things with a screwdriver and said nothing was wrong with it. I went to another garage for a second opinion. He told me it sounded like A worn ball joint on the suspension. He put some grease on the part he thought it was, and told me that if the squeaking went away [temporarily], to take it back for repair. Anyhoo, it didn't go away. Over the last few days I'd convinced myself that it was the anti rollbar droplink that was drying out, as I can also hear a feint knocking when cornering. So the other day I was in a shop and bagged a trolley jack and a pair of axle stands.... if you want anything doing, do it yourself.
I got the car up on stands, and got the wheel off and proceeded to remove the droplink. The top bolt came off easily. As I eased the bar back to get the socket onto the lower nut, the whole thing came off in my hand!
It looks like an original - or very old - part. Its rusted from end to end, and the bottom balljoint was smashed to bits, probably mostly due to age but I reckon my missus's Biggles impression is what finished it off.
New droplink on, and all is quiet and good as new again.
