renault dti cam belt failures

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had a dti 1.9 laguna on a v plate,80k miles,full service history etc,etc.there is a common fault on these engines i found to my peril.the cam belt had been done by the main dealer at 71k,that was fine.

the problem lies with the alternator tensioner,it has a plastic pulley which fails!!you get no warning when it may go.mine collasped threw the belt which coils round the crank pulley,and in turn throws  the cam belt off.nasty,cost about £1800 in the dealer,i repaired it my self and itstill cost £600 in parts alone.so please be careful when buying the dti engined renaults,if you get one replace the tensioner at least,cost £150 from dealer.

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