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  1. #1
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    Not the usual auto gearbox issues??

    Hi all, new to the site and new to Volvos and already looking for advice unfortunately.

    I have a 2004 S80 D5 Auto with 200k miles.

    The issue I have is the gearbox is showing signs of ‘flaring’ I believe from what I have been reading online at least.

    1st-2nd seems not bad but every other gear after that gives the sort of false neutral feeling and the revs rise but feels like it is not in a gear. (Very similar to a slipping clutch on a manual gearbox)

    If I ease off the throttle it will change up a gear and it does so smoothly with no nasty bangs etc. But it does this constantly from a cold or warm engine.
    If I hold the throttle to the floor the car changes gear as normal through the gears however.

    I have bought a b4 servo kit as a hope it may solve this issue but has anyone got any advise or experience with this happening as it’s not the typical b4 servo problem I read about I think.

    I also intend on doing a sump dump and replacing some of the fluid as I am going to be under the car anyway.

    Thank you all in advance for any help/assistance.

    George.


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    Hi George I’ve just bought a 2004 s80 d5 with only 86 k and a one owner and I’m experiencing the same thing as you are, what is the cure?

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    Hi Kowalski,

    Still haven’t got to the bottom of it.
    Have been working a lot so plan to do the b4 servo cover in the next fortnight some time and a sump dump to see if it helps.


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    After 200k miles, the ATF will be dead.
    Your best chance would be a full flush and I would add a bottle of Lucas SS premixed with the new fluid.

  5. #5
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    Quote Originally Posted by David P View Post
    After 200k miles, the ATF will be dead.
    Your best chance would be a full flush and I would add a bottle of Lucas SS premixed with the new fluid.
    Thanks for the advice, I agree the atf doesn’t look the freshest I’ve ever seen and I don’t know it’s history either.
    But forgive my ignorance.....

    What is SS I presume the Lucas sure shift atf fluid?


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    Lucas Stop Slip, I find this to be beneficial for high mileage auto boxes.

    https://www.ebay.co.uk/itm/392016486...EAAOSwSlBYxtI5

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    Thanks mate I’ll have a look into this and consider putting some in when I drain the sump in the next week or 2


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    Draining the sump will only remove around a quarter of the ATF from your transmission.

    Yours is in need of a full flush, do a search for full flush...

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    Please read my transmission adventure from another forum below, if you have questions I will be happy to answer them

    I bought my Volvo V70 2004 3 years ago with transmission problems already started at 144.000km and the owner can not use the car because of these issues.I had no idea with the troubles of P2 transmissions but I got into tech docs in Vida and forums , slowly gaining info about the situation.The previous owner told me that he had changed the trans fluid couple of times and it didn't work.When I got home I immediately sourced for correct fluid , Mobil 3309.I replaced the fluid and made the arrangements in Vida (resetting the fluid counter and making an adaptation). It was getting better but the rpm flares begin to happen.I made the B4 cover update and it was done too.I am living in an area where there is less traffic so the trans are not making problems, but when I go to the city it begins harsh engagements when it is hot.So I bought the Hayden transsaver cooler with a oil filter and installed on the car.Now I can see the difference like day and night.It was trying to make some problems in the city traffic but well in the limits.If I open the air condition then it never does anything.Lastly this year I updated the cooler to Derale stacked plate cooler.It was even better cooling if I watch the trans oil numbers in Vida.So I am at 246.000km and the trans still runs without major problems.I changed the trans oil every 50.000km, I am trying yo keep it fresh.I know that someday this trans will be done but hey who knows

  10. The Following User Says Thank You to azatoglu For This Useful Post:

    dode4444 (Monday 3rd May 2021)

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    Hi all just an update......

    So I have done the b4 servo upgrade however the old cover and seals etc all looked ok but at least it’s ruled this out.

    I have dropped the sump and got 2.8 litres out, drove 500 miles and dropped the sump contents again.
    So it’s not all new oil but it’s getting there.
    The old oil was very brown and not in a great shape.

    Driving wise the cars gear changes have improved by at least 50-60%.

    The flaring is still there between all gears however not as bad as it was. Definitely still getting the slipping/delayed changing feeling all the time. Eg driving at half throttle will flare to around 3,000rpm for 3-5 secs before engaging the next gear.

    Anyone got any ideas what to try next?
    I plan on changing the sump contents again in another few hundred miles also just to keep diluting the old oil and replenish.

    Definitely colour changing to more red ish though.

    Here’s a pic of the old stuff that came out.




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    Running it for another "few hundred" slipperdoodah miles; won't do the old clutches or the ATF temperature any favours at all.

    Drop the sump pan and replace the ATF strainer for a new one.

    Using ATF Mobil 3309, give the transmission another partial flush, or even two; to get the fluid back to looking healthy and then dilute a bottle of Lucas SS into the final fill.

    Timely completing these simple rituals, could resurrect this transmission a ninth-life at the eleventh-hour, if they don't, you could be left praying for a miracle.

    tick tock.
    Last edited by David P; Saturday 22nd May 2021 at 17:39.

  14. #12
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    Quote Originally Posted by David P View Post
    Running it for another "few hundred" slipperdoodah miles; won't do the old clutches or the ATF temperature any favours at all.

    Drop the sump pan and replace the ATF strainer for a new one.

    Using ATF Mobil 3309, give the transmission another partial flush, or even two; to get the fluid back to looking healthy and then dilute a bottle of Lucas SS into the final fill.

    Timely completing these simple rituals, could resurrect this transmission a ninth-life at the eleventh-hour, if they don't, you could be left praying for a miracle.

    tick tock.
    Thanks for the advice, hopefully finding time to get working on it tomorrow.


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    A guide how-to fit a new strainer.

    Note: Even this is not all of the ATF, there is another 3 or 4 litres trapped inside the torque converter.

    Last edited by David P; Saturday 29th May 2021 at 18:14.

  16. #14
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    Is this an AW55/51 gearbox though as I have in my S80?


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    If it wasn't, you couldn't have uprated the B4 servo!

    https://www.eeuroparts.com/blog/is-y...uld-read-this/
    Last edited by David P; Sunday 30th May 2021 at 00:02.

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    Not the usual auto gearbox issues??

    David P…..

    I mean the link you posted previously, I don’t think that is the same gearbox as I have.

    As far as I am led to believe the gearbox I have only had a filter which is internal in the gearbox and not the easiest to get to….
    Happy to be proven wrong though.

    I have the AW55/51 gearbox.
    B4 servo cover was changed about 2 weeks ago along with draining the sump.

    Cheers


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  19. #17
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    Quote Originally Posted by dode4444 View Post
    As far as I am led to believe the gearbox I have only had a filter which is internal in the gearbox and not the easiest to get to….
    Just like in the video link.

    tick tock.
    Last edited by David P; Sunday 30th May 2021 at 16:24.

  20. #18
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    Quote Originally Posted by David P View Post
    Just like in the video link.

    tick tock.
    You couldn’t grace me with any part numbers for the filter etc then could you?
    Struggling to find any online whilst I’m out here at work?
    TIA


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    Reference OE/OEM Number: AW55-50SN , AW55-51SN FILTER, 317288Y000, 93177682, 703304, 274470, 274470, 31728-8Y000, 703304, 93177682
    Manufacturer Part Number: AW55-50SN , AW55-51SN FILTER


    The best deal I found including sump gasket.

    https://www.polar-parts.co.uk/Oil-Fi...8aAorYEALw_wcB

    Mobil 3309.

    https://www.ebay.co.uk/sch/i.html?_f...+3309&_sacat=0

    Lucas SS.

    https://www.ebay.co.uk/itm/391939532...EAAOSwSlBYxtI5

    tick tock.
    Last edited by David P; Sunday 30th May 2021 at 19:29.

  22. #20
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    Hi David P,
    I have to agree with Dode4444 that my car too doesn't have the oil sump for the trans.The car in the video is a T6 and it has a totally different gearbox then the 2004 V70 2.0T I have.


 

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