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Thread: Dti Thermostat

  1. #1
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    Vehicle InfoStats

    Vehicle : Vectra

    Trim : Exclusive

    Engine : 1.9 CDTI


    Default Dti Thermostat

    First of all, apologies for starting another thermostat thread, but most of the threads I've read up to concern the cdti's so I'm hoping for a little advice.

    My car - 2.2 Dti - as far as I can see is showing all the signs of a failed thermostat. I know various people have said diesels take longer to warm up & the Dti's are overcooled, but I'm convinced mine has failed. The heater gets warm but not hot, but the temp gauge never moves. The car is used for a 50 mile round trip every day in rush hour traffic on a mix of motorway & B roads. The only time I've saw the gauge move was in the summer while doing 70 on the motorway, whenever I got stuck in traffic the needle would drop back down.

    I'd be grateful if anyone who has done this job on a Dti could tell me if the thermostat can be removed from the housing & tested & replaced seperately or do I need to buy the whole housing. Obviously I'd prefer to just replace the stat if it comes out rather than shelling out the wrong side of £40 for the whole unit.

    Any advice much appreciated.

  2. #2
    Full Member bobssignum's Avatar
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    Vehicle : Signum 2.0 DTi

    Trim : Elegance/Elite

    Engine : 2.0DTi

    Year : 2003

    Mileage : 73350

    Default

    Hi dave
    The thermostat can be removed from the housing it is only retained by its crossplate and retaining spring just depress cross plate and twist to release , its a tough spring but can be done . find yourself a quinton hazell stockist for the replacement thermostat element i can not remember the part no but it is listed on the Q h website .
    pics enclosed of the thermostat and its casing.
    Driving vauxhall,s for 30 + years
    and still loving it

  3. #3
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    Vehicle : Vectra

    Trim : Exclusive

    Engine : 1.9 CDTI


    Default

    Thanks for the fast reply, tells me everything I need. Brilliant pictures too. You're a legend.

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