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Thread: DMF query, rumble at idle and if clutch depressed

  1. #1
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    Default DMF query, rumble at idle and if clutch depressed

    I have had a strange rumble for about the last 6000 miles, its not too bad and i hear it mostly when I am inside the cabin, if i gently push the gear level forward (with clutch pedal up) this noise dissapears, if I let it drift back to neutral its back.

    anyway from what I know i suspect dmf failure, at first i thought it might be the bearing as I've had similar symptoms on a small hatchback many years ago,

    just realised these vectra c 1.9 cdti 120's 2007 facelift have dmf's

    anyone confirm how long this can last, ive heard they can last a good 20k miles prior to failure,

    im putting aside £500 for the parts, clutch, flywheel, bearing, and possibly clutch slave cylinder (not sure if I need to change this as I heard there were some dodgy ones fitted on some cars, not sure if this is true or not)

    then will be hammering the job the day the dmf fails

  2. #2
    Regular Member MrDerv's Avatar
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    Might sound daft, but check your gearbox oil first. May be running low and causing your noise.

    Hopefully it'll just need a top up

  3. #3
    Regular Member Chuff's Avatar
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    if you leave a DMF to fail completely it can also take out your gearbox

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    Regular Member Cyruskint's Avatar
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    I read elsewhere that the V6 CDTi has a DMF.........can it be so?

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    What kind of oil is required. I've double checked the noise and it sounds almost bubbly if tjat makes any sense

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    SAE 75W-80 synthetic
    f17 = 1.6 liters
    f23 = 1.55 liters
    f35 = 1.9 liters
    f40 = 3.2 liters

  7. #7
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    SAE 75W-80 synthetic
    f17 = 1.6 liters
    f23 = 1.55 liters
    f35 = 1.9 liters
    f40 = 3.2 liters

  8. #8
    Regular Member chuckleuk's Avatar
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    How and where do you check the gear box oil level and I have a 56plate 1.9 cdti 150 so what gear box would I have? I'm also getting exactly the same noise cheers Lee

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