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Thread: 1.7dti poor heater

  
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    Unhappy 1.7dti poor heater

    Hi all i have just bought a 53 plate 1.7dti astra estate,drives great but poor heater,changed thermostat flushed rad and heater rad out ,still has poor heater,i drive 12 miles but heater is still only look warm,guage shows just under 90degrees(the stat i put in was 89)any ideas should i put a hotter stat in regards jim

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    I also have a "53 plate 1.7dti astra estate" and have changed my stat. I don't think the problem is with the stat but either an air lock in the heater matrix or the matrix is blocked. Try reverse flushing it with a hose pipe. If it has been used with insufficient/no antifreeze, then you will be suprised by the crap that gets built up.
    T

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    Quote Originally Posted by jaapdog View Post
    Hi all i have just bought a 53 plate 1.7dti astra estate,drives great but poor heater,changed thermostat flushed rad and heater rad out ,still has poor heater,i drive 12 miles but heater is still only look warm,guage shows just under 90degrees(the stat i put in was 89)any ideas should i put a hotter stat in regards jim
    Don't mean to hijack the thread mate, but when you say the heater temp is luke-warm what do you mean exactly?
    I say this because my heater works on mine BUT it takes about 10 mins (or more) to get up to a nice heat. For the first 10 mins of any journey the heat is very poor.
    This surprises me becasue my wife's Corsa B heats up in like 3 mins!

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    the 1.7 diesel does take a while to warm up. in the last cold snap we had, it was taking about 8-9 miles (10 mins) to get to full temp.
    T

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    Quote Originally Posted by pewseyfam View Post
    the 1.7 diesel does take a while to warm up. in the last cold snap we had, it was taking about 8-9 miles (10 mins) to get to full temp.
    T
    Mines a 1.7DTi.
    Are they all like that...a common issue?
    And are there ways of speeding this heating time up?
    Why does a smaller Corsa B heat up quicker at the vents?

    Sorry, i'm very curious

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    Quote Originally Posted by Billy Dean View Post
    Mines a 1.7DTi.
    Are they all like that...a common issue?
    And are there ways of speeding this heating time up?
    Why does a smaller Corsa B heat up quicker at the vents?

    Sorry, i'm very curious
    cus its petrol??

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    Quote Originally Posted by Billy Dean View Post
    Don't mean to hijack the thread mate, but when you say the heater temp is luke-warm what do you mean exactly?
    I say this because my heater works on mine BUT it takes about 10 mins (or more) to get up to a nice heat. For the first 10 mins of any journey the heat is very poor.
    This surprises me becasue my wife's Corsa B heats up in like 3 mins!
    hi i have a journey of 12 miles in traffic takes approx 30 mins and heater is warm, not hot,if i put blower on number 4 its even worse! regards jim

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    Quote Originally Posted by pewseyfam View Post
    cus its petrol??
    Yeah the Corsa is petrol.
    What difference does that make though?

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    My 1.7dti takes 4 or 5 miles to get upto tempreture.

    It does take a little less if you leave it to idle for a few minutes before pulling away - like 4 minute idle = its up quite a bit on the dial by the time I get to work instead of stone cold.
    Not pulling the blower onto walm air will help it to walm up faster as it takes heat from coolant IIRC.

    I reason is simply because its a cold running engine I think, some cars you open the bonnet and the air is walm etc, but never on mine.

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    Trust me Its a Diesel thing, they tend to take longer than petrols to heat up, my astra 2.0 DTI you have to drive for atleast 12 miles or 25 mins for the temp gauge to move, the only time it moves quicker is when i hit the motorway straight after work and hit 70mph-then it has no choice but move and gets warm very quick, but moderate driving tends to take ages to warm up mate.

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