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Hi all i have a ex AA 2.5 tdi 102hp which has had intermitent limp mode for a year and half . It goes into limp on motorway at 70 mph or under load going up hill. Bought a new n75 vavle and no better then all new vac pipes and still no better. So last week the turbo went off alltogether. So checked everthing again and the turbo actuator was very slack, 10mm bolt nearly out so i nipped it up and went for a spin , Turbo kicks in at 1800 rmp wistles and pulls like mad, 85mph up hill put foot down and still pulls. Hope this helps someone else and save lots of money.A:
 

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i had this happen last week , only found it when checking vac pipes and found that the actuator was loose. Tightened the front on the actuator bracket and it drove like a new van. The waistgate must have been slightly open all the time so it was never spinning the turbo fully.:ILU:
 
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