Results 1 to 5 of 5

Thread: Is overfilling an auto gearbox bad?

  1. 31st October 2011, 03:01 PM #1
    Marmoset's Avatar
    Marmoset
    Marmoset is offline Master
    Join Date
    Jun 2010
    Location
    Perth, WA
    Posts
    429
    Total Downloaded
    0

    Is overfilling an auto gearbox bad?

    Hi all,

    The gearbox on my Td5 has had a few thumpy shifts and high revs before upchange incidents this weekend so I thought the least I could do was check the oil level.

    When opening up the filler plug I was greeted by a torrent of oil and quickly had to put the plug back in - it wasn't just a dribble as the RAVE filling procedure describes. The fluid still had a reddish tinge to it so wasn't too bad but is there somewhere higher than the filler plug that someone could have mistakenly used, and could this cause some of the symptoms and/or any further damage? The car was stone cold when I checked this.

    Cheers

    Rich
    Reply With Quote Reply With Quote
  2. 31st October 2011, 03:24 PM #2
    PhilipA
    PhilipA is offline Swaggie Subscriber
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
    Total Downloaded
    0
    Here is the full story.
    You have to check it warm with the engine idling as per this link.
    www.discovery2.co.uk / Automatic Gearbox Oil and Filter Change
    Regards Philip A
    Reply With Quote Reply With Quote
  3. 31st October 2011, 09:01 PM #3
    Krayzie Keegs's Avatar
    Krayzie Keegs
    Krayzie Keegs is offline Master
    Join Date
    Aug 2009
    Location
    Point Cook, Vic
    Posts
    123
    Total Downloaded
    0
    No mate this is the only place you can fill it it has a top fill plug and the drain plug

    As for over filling don't think it would do to much to it they may not have filled it with the car level or maybe you where down hill I just did a change on mine. At first de plug a heap of oil spat out then slowed after half a liltre came out

    Best thing might be geta service kit or just check the magnet in the pan for any metal.
    Reply With Quote Reply With Quote
  4. 31st October 2011, 09:39 PM #4
    Marmoset's Avatar
    Marmoset
    Marmoset is offline Master
    Join Date
    Jun 2010
    Location
    Perth, WA
    Posts
    429
    Total Downloaded
    0
    Cheers guys - a precuationary oil change is on the cards.
    Reply With Quote Reply With Quote
  5. 31st October 2011, 09:44 PM #5
    PhilipA
    PhilipA is offline Swaggie Subscriber
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
    Total Downloaded
    0
    The reason you check the oil level with the engine idling and move the transmission through the gears is that there is usually about 4 litres in the sump, but there is another 4-5 litres in the torque converter and cooler.
    Some of this can drain back into the sump if the pump is not pumping it through the cooler and TC, so you get a false high reading.

    If you are measuring it with the engine off you are getting a false high reading.

    Regard sPhilip A
    Reply With Quote Reply With Quote
« gearbox help | ABS Pump Repairs. »

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!