Hi there,I know this a common problem,Ive had it for a while now,when going over

large bumps I get a loud rubber rubbing noise from under the driver side.Ive had it to the dealers for a number of visits,they say it ARB,or its the rubbers that have to be replaced at which time they replace.I find after a few days of it being fixed the problem slowly begins to come back ,has anyone had this problem before and what fix can fix it for good!as its driving me mad!Im just so tired of go back and forth to the dealers for the same problem.The car is no longer under warrenty will replacing poly bushes instead of the rubber ones work? please help.thanks

Sounds like the coating has come off the arb then.