hi please help its driving me mad ,1996 300tdi disco ,no air con ,for the first year no squeal ,superb,then it started ,replaced the drive belt ,two weeks later it started again ,was told it cud be alternator ,so replaced ,was then told evan new belts squeal ,so got another ,still squealed ,replaced the tentioner ,a mile down the road it started agian .then a local 4x4 garage told me the rad was leaking ,replaced rad ,still squealed ,just put a new landrover belt on it ,still squeals ,put talc powder on it and it stops it for 2 or 3 days ,please help driving me around the bend ,and about £300 later ,.thanks