just thought id put this on here , in the end it was wheel bearing related. had it swapped at PP in willenhall and they did a fine speedy repair. brakes now work perfectly again. but what did surprise me was the wheel had no play as such ! only after taking it off did it become clear how worn this bearing was. so don't delay get bearing swapped if your brakes are compromised after turning left or indeed right.

 

As was said you have to push pistons in the calipers back in otherwise you'll not feel the slack/wear in the bearing.

 

yes I took your point and removed the pads , then wheel back on , checked at 12 and 6 o clock postions but no visible play could be felt. but very good point joe , something we should take in to account when checking for the bearing free play. thanks for your imput, I even told the mechanic lol he said yes that's correct and was training 2 young lads who he also imformed . so im spreading the good word.