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Thread: Red Warning light water temperature (HELP PLEASE)

  1. #1

    Red Warning light water temperature (HELP PLEASE)

    As I travel on the motocycle (BMW c600) aftrer 40 km at a speed of 120-150 km/h a red warning lamp illuminates and shows water temperature, Just lowering speeds the lamp goes off. I check the water level and everything is normal (OK), diagnosed by the delegation BMW and saying there everything is OK, if i run with the same speed the red warning light is coming back. ANY HELP PLEASE !!!!

  2. #2
    Senior Member exavid's Avatar
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    Feb 2014
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    Medford, Oregon
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    755
    It doesn't look like anyone on the forum has had a similar experience. Have you taken it to the dealer to have it diagnosed with a OBD tool?
    2013 C650GT 1994 K1100LT

  3. #3
    Yes the source to the official dealer and tells me it is occasional, if I start and push and hold for some time over 140 km/h then the lamp (with a sign of water).

  4. #4
    Anyone with the same story?

  5. #5
    Junior Member
    Join Date
    Feb 2017
    Location
    Buenos Aires ARGENTINA
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    Hi!, first of all, sorry for my bad english, Iīm from Argentina and own a 650 GT.
    The temp indicator is something Iīve allways wondered why this scooter doesnīt have; itīs an expensive vehicle, but no temperature gauge.
    I didnīt have temperature problems (thank god), but itīs goog to know there is a lamp that indicates de overheating!!!!

  6. #6
    Junior Member
    Join Date
    Jul 2019
    Location
    Lithuania
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    Hi! are you finded problem? I have this problem too.
    FAN OK
    THERMOSTAT OK
    RADIATOR CLEANED
    COOLING FLOID CANGED
    CATALYST REMOVED

  7. #7
    Senior Member Skutorr's Avatar
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    Dec 2012
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    Coarsegold, CA (Yosemite Lakes Park)
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    1,045
    Might be running too lean at higher rpm/speed, which will make it run hot...

    One of THESE might help:

    https://scooterpartsco.com/bmw/bmwsp...cf06e4da8d8ac1

  8. #8
    Junior Member
    Join Date
    Jul 2019
    Location
    Lithuania
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    I think that its lean, but when I check lambda with OBD its working. What you think, maybe I have to buy it? You have this problem?

  9. #9
    Member Thom Davis's Avatar
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    Feb 2018
    Location
    Northern California
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    82
    First try replacing the sensor that reads the coolant temp.

  10. #10
    Member
    Join Date
    Dec 2013
    Location
    Philippines
    Posts
    77
    I experienced the same today. Checked the coolant. It was low. Added about 1/8 cup of coolant. Went home. Traffic was heavy so speed was like 25-40kph only. Then the warning lights again showed up. Got home, checked the coolant level and it was ok. Am stumped.

    Where is the coolant temp sensor located?

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