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Thread: thermostat replacement

  1. #1
    Regular Member duncmill's Avatar
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    Default thermostat replacement

    Just done the thermostat on my cdti 120 WHAT A !!!! Big silver canister thingy in the way itís took me all day, not an easy job. On the plus side heater nice and hot and the temp gage moves and hopefully a few more MPG.

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    Glad it's worked for you m8, will pay for itself in fuel in the long run.
    Mine's booked in for Wednesday, i'll be sitting at home with a cuppa and a packet of rich tea while they get their hands dirty

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    Regular Member husky's Avatar
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    Vehicle : Vectra

    Trim : VXR-D

    Engine : 1,9 CDTi 150

    Year : 2006

    Default

    took me 30 minutes to do on my CDTi 150

  4. #4
    Regular Member barney490's Avatar
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    For future reference of other 120 owners replacing the thermostat, the big silver thingy is the brake vacuum pump, its held by three ribe bolts (torx 50 will work) and its easier if you take it off. Gives tons of room to work on the stat, especially as you need to faf around with egr cooler to remove the stat. Dont forget to buy a new vac pump to cam housing gasket as the old one cant be reused successfully.

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    Quote Originally Posted by duncmill View Post
    Just done the thermostat on my cdti 120 WHAT A !!!! Big silver canister thingy in the way itís took me all day, not an easy job. On the plus side heater nice and hot and the temp gage moves and hopefully a few more MPG.
    How long does yours take to get hot now in -4 temp?

    Mine takes 7-8 miles to get to temp at that low temp but the heater is hot well before that so i suspect mine is ok.

  6. #6
    Regular Member Jezzy's Avatar
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    Quote Originally Posted by barney490 View Post
    For future reference of other 120 owners replacing the thermostat, the big silver thingy is the brake vacuum pump, its held by three ribe bolts (torx 50 will work) and its easier if you take it off. ..... Dont forget to buy a new vac pump to cam housing gasket as the old one cant be reused successfully.
    That bit sounds very similar to doing the job on the Z20NET as well.

  7. #7
    Regular Member duncmill's Avatar
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    Quote Originally Posted by barney490 View Post
    For future reference of other 120 owners replacing the thermostat, the big silver thingy is the brake vacuum pump, its held by three ribe bolts (torx 50 will work) and its easier if you take it off. Gives tons of room to work on the stat, especially as you need to faf around with egr cooler to remove the stat. Dont forget to buy a new vac pump to cam housing gasket as the old one cant be reused successfully.
    Donít think itís the vac pump as that sits above the thermostat. The thing Iím talking about has metal pipes going to it from the exhaust manifold and is under the stat. The problem is getting the bottom bolt out.

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    Regular Member duncmill's Avatar
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    Quote Originally Posted by Bigtee View Post
    How long does yours take to get hot now in -4 temp?

    Mine takes 7-8 miles to get to temp at that low temp but the heater is hot well before that so i suspect mine is ok.
    Sound the same as mine now, only problem my journey to work is only 3 miles

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    Regular Member nokiaman1978's Avatar
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    Default

    husky any tips on how 2 change stat, mine needs done as well any pics of location would be helpfull.

  10. #10
    Regular Member Exclusive BV's Avatar
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    Quote Originally Posted by Ricksh View Post
    Glad it's worked for you m8, will pay for itself in fuel in the long run.
    Mine's booked in for Wednesday, i'll be sitting at home with a cuppa and a packet of rich tea while they get their hands dirty
    Me too m8 Cant wait!

    -9.5 was not funny this morning. I've only just thawed out

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