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Leaking angle joint/tranfer case for 2004 XC90 AWD XC90

posted by  someone claiming to be caxc90 on  Wed May 2 09:29 CST 2007 [RELATED]

My dealer indicates that I have a leak in some kind of AWD transfer case...also referred to as the "angle joint" I don't understand what this is. I do understand that it is going to cost $2,300 to replace in a 3 1/2 year old car with 55K miles on it. Does anyone have any experience with this?








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    Leaking angle joint/tranfer case for 2004 XC90 AWD XC90

    posted by  kylewess on  Thu May 10 09:21 CST 2007
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Wed May 23 02:41 CST 2007
    [RELATED]

    Bevel gear is a sealed unit on the newer Volvos. The only repair is to replace them. I've seen a few dozen fail, and Im sure there is more to come.








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    Leaking angle joint/tranfer case for 2004 XC90 AWD XC90

    posted by  someone claiming to be Andy on  Fri May 4 10:38 CST 2007 [RELATED]

    Just to help you out with what the parts discussed do: the "bevel gear" and "angle gear" are the same part, people tend to interchange the terms. I think that "bevel gear" is the more correct version.

    Anyway, what this part does is send the power from the transmission to the rear wheels for the all-wheel drive system. Picture the drivetrain as a "T" with the two front wheels at the top ends of the cross of the "T" and the bevel gear sends the power to the rear wheels, down the "|" of the the "T".

    They do fail. Especially when the oil level isn't maintained, or the oil isn't changed.

    The first generation Volvo AWD system (on the 1998 - 2000 AWD V70/S70)was found to need careful attention to AWD details like tire size, or the bevel gear got destroyed as the AWD system locked up on drive pavement and no front-rear differential action was possible.

    But I have to say that in reading this board for about 8 years or so, yours is the first time I've seen anyone post with a second-generation AWD bevel gear failure. (not to say it hasn't been posted, I just don't recall one before)







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      Leaking angle joint/tranfer case for 2004 XC90 AWD XC90

      posted by  someone claiming to be caxc90 on  Fri May 4 12:40 CST 2007 [RELATED]

      Thanks. My invoice says "angle gear" but we're clearly talking about the same thing based on the description that I got from the deal.

      The odd thing is that the angle gear didn't actually fail. The claim was that there was a leak from the casing and that the seal is not serviceable so that the thing needs to be replaced (to avoid future catastrophic failure). The location where the car is parked has not evidence of anything leaking, though maybe there is a pan underneath that would catch the oil?

      Frustrating to have to replace a $2,300 part in a 3.5 year old car because a seal is not serviceable (if I am to believe the dealer).








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        Leaking angle joint/tranfer case for 2004 XC90 AWD XC90

        posted by  someone claiming to be Andy on  Fri May 4 14:27 CST 2007 [RELATED]

        On the first generation AWD cars, the bevel gear (angle gear) seal is replacable. Not easily, not cheaply, but it is replacable.

        So, should you want to question the dealer, I would certainly challenge the neceessity of replacing the bevel gear unit over replacing the seal.







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