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  • FIRST POST
    • carol1963
    • By carol1963 14th Jun 17, 11:20 AM
    • 144Posts
    • 100Thanks
    carol1963
    Engine Coolant Light on a Vauxhall Astra 2002
    • #1
    • 14th Jun 17, 11:20 AM
    Engine Coolant Light on a Vauxhall Astra 2002 14th Jun 17 at 11:20 AM
    Morning All, Advice please. This morning my coolant light came on, there is enough coolant in the bottle so not sure.


    Last time this happened I think it was something as simple as a fuse or the fan hadn't kicked in. Can someone please help.


    Thank you, Carol
    LBM 10/9/13 £40,571 (SCARY). NOW DECEMBER 2016 £31,805.
    PROUD AND STILL SCARED BUT PLODDING.

    SPC 551
Page 1
    • reeac
    • By reeac 14th Jun 17, 11:54 AM
    • 1,064 Posts
    • 425 Thanks
    reeac
    • #2
    • 14th Jun 17, 11:54 AM
    • #2
    • 14th Jun 17, 11:54 AM
    Is it an "engine overheating" light? If so then open the bonnet and look for any evidence of overheating such as steam or excessive under bonnet heat. If no such evidence then it may be a defective coolant temperature sensor. Happened to me with our Jazz on the M11 last December but no evidence of actual overheating and I drove another 100 miles or so with no problems. Replacement sensor cured the problem.
    • bertiewhite
    • By bertiewhite 14th Jun 17, 1:01 PM
    • 405 Posts
    • 384 Thanks
    bertiewhite
    • #3
    • 14th Jun 17, 1:01 PM
    • #3
    • 14th Jun 17, 1:01 PM
    The coolant light kept lighting on my Jeep Cherokee although there was enough coolant. It would always come on after about a minute of driving so in the end I removed the plug, cleaned it with switch cleaner and replaced it. It seems to have worked.
    • carol1963
    • By carol1963 14th Jun 17, 1:28 PM
    • 144 Posts
    • 100 Thanks
    carol1963
    • #4
    • 14th Jun 17, 1:28 PM
    • #4
    • 14th Jun 17, 1:28 PM
    Thank you. Where's the plug please and switch cleaner? Carol
    LBM 10/9/13 £40,571 (SCARY). NOW DECEMBER 2016 £31,805.
    PROUD AND STILL SCARED BUT PLODDING.

    SPC 551
    • glentoran99
    • By glentoran99 14th Jun 17, 1:32 PM
    • 4,402 Posts
    • 3,246 Thanks
    glentoran99
    • #5
    • 14th Jun 17, 1:32 PM
    • #5
    • 14th Jun 17, 1:32 PM
    Morning All, Advice please. This morning my coolant light came on, there is enough coolant in the bottle so not sure.


    Last time this happened I think it was something as simple as a fuse or the fan hadn't kicked in. Can someone please help.


    Thank you, Carol
    Originally posted by carol1963
    Same thing happened to the wifes astra, it was a sensor in the coolant bottle was faulty (all one unit), the bottle was replaced and all good again
    • carol1963
    • By carol1963 14th Jun 17, 1:39 PM
    • 144 Posts
    • 100 Thanks
    carol1963
    • #6
    • 14th Jun 17, 1:39 PM
    • #6
    • 14th Jun 17, 1:39 PM
    Hiya All, It was the engine coolant light (according to my owners manual booklet). No steam under the bonnet Temperature came up to 90%, light came on, carried on driving temperature came down but light still stayed on. Carol
    LBM 10/9/13 £40,571 (SCARY). NOW DECEMBER 2016 £31,805.
    PROUD AND STILL SCARED BUT PLODDING.

    SPC 551
    • bertiewhite
    • By bertiewhite 14th Jun 17, 4:11 PM
    • 405 Posts
    • 384 Thanks
    bertiewhite
    • #7
    • 14th Jun 17, 4:11 PM
    • #7
    • 14th Jun 17, 4:11 PM
    Thank you. Where's the plug please and switch cleaner? Carol
    Originally posted by carol1963
    I don't know about an Astra but it was obvious where the plug was on the Jeep - isn't there a coolant level plug on the bottle somewhere? It might be underneath?

    As for switch cleaner - you should be able to buy it online or you could try a squirt of WD40.
    • peter12345678910
    • By peter12345678910 15th Jun 17, 8:01 AM
    • 224 Posts
    • 51 Thanks
    peter12345678910
    • #8
    • 15th Jun 17, 8:01 AM
    • #8
    • 15th Jun 17, 8:01 AM
    Had the same problem 6 months ago, I simply gave the connector to the sensor a good squeeze though I could not see it. Never had a problem since.
    When you look into an abyss, the abyss also looks into you.

    Friedrich Nietzsche
    • Strider590
    • By Strider590 15th Jun 17, 12:51 PM
    • 11,308 Posts
    • 6,280 Thanks
    Strider590
    • #9
    • 15th Jun 17, 12:51 PM
    • #9
    • 15th Jun 17, 12:51 PM
    On my Vectra, if it was not at MAX, then the warning light used to come on in right hand bends (usually on DC or motorway a slip lane).
    Having the last word isn't the same as being right.......

    "Never confuse education with intelligence"
    • Muscle750
    • By Muscle750 15th Jun 17, 7:12 PM
    • 833 Posts
    • 253 Thanks
    Muscle750
    Fav on Astras is the auxillary fan on rad seizes up however if it hasnt got air con it wont have one.
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