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Torque settings

Tank. Jun 12, 2015

  1. Tank.

    Tank. Registered User

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    will be attempting to replace rear wheel hub/bearing assembly on my 3.0 quattro.

    Wondered if someone could give me the torue settings for the mounting bolts and central hub nut, phoned audi and spoke to someone in the workshop but refused to give out details for safety reasons

    also wondered if anyone had torque settings for drive shaft bolts and the flange that mounts into the rear diff?

    many thanks
     
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  3. RoyC

    RoyC Registered User

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    A42-10004.png
    Wheel bearing housing, wheel bearing unit, shock absorber for coil springs - exploded view
    [​IMG]
    1 - Eccentric washer
    2 - Nut
    q 95 Nm
    3 - Wheel bearing housing
    q Removing and installing → Chapter
    4 - Ball bearing
    q Items 4 and 5 are only installed in vehicles with four-wheel drive
    q Servicing wheel bearing unit → Chapter
    5 - Wheel hub
    q Items 5 and 4 are only installed in vehicles with four-wheel drive
    q Servicing wheel bearing unit → Chapter
    6 - Wheel bearing unit
    q Removing and installing → Chapter
    q Complete wheel bearing unit is only installed on vehicles with front-wheel drive
    q Wheel bearing unit cannot be repaired
    7 - Bolt
    q 200 Nm +180°
    q Always renew if removed
    8 - Splash plate for brake disc
    9 - Hexagon bolt
    10 - Bolt
    q 85 Nm +90°
    q Always renew if removed
    11 - Track rod
    12 - Stone deflector
    q Only fitted on heavy-duty running gear version
    13 - Retaining clip
    14 - Nut
    15 - Bolt
    q 85 Nm +90°
    q Always renew if removed
    16 - Trapezium link with stone deflector
    17 - Nut
    18 - Washer
    19 - Shock absorber
    q Removing and installing → Chapter
    20 - Protective sleeve
    q On RS 6 vehicles: secured to bump stop and retaining ring
    q On RS 6 vehicles: note position → Fig.
    21 - Bump stop
    22 - Bolt
    q 35 Nm
    23 - Shock absorber mounting
    24 - Nut
    q 25 Nm
    25 - 12-point socket head bolt
    q Always renew if removed
    q 70 Nm
    26 - Drive shaft
    27 - Upper transverse link
    28 - Eccentric bolt
    29 - Bolt
    q 150 Nm +90°
    q Always renew if removed
    30 - Countersunk bolt
    q 80 Nm +90°
    q Always renew if removed


    Correct position of protective sleeve on RS 6 vehicles
    -A- 0° ± 2° position of slot in retaining ring on protective sleeve
    A42-10325.png
     
    PAULF likes this.
  4. Tank.

    Tank. Registered User

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    Perfect! thank you very much!
    Do you know if the wheel bearing unit a press fit or is it just the 4 bolts holding it in place
     
  5. RoyC

    RoyC Registered User

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    Removing and installing wheel bearing unit
    Special tools and workshop equipment required

    t Torque wrench -V.A.G 1332-
    1.png

    Removing
    Vehicles with coil springs
    Front-wheel drive
    – Remove wheel.
    Four-wheel drive
    – Remove wheel trim; on light-alloy wheels, pull off trim cap (use puller in vehicle tool kit).
    – Loosen flange bolt securing outer joint of drive shaft (loosen only when vehicle is standing on its wheels -accident risk-) → Chapter.
    – Remove coil spring → Chapter.
    [​IMG]
    – Remove wheel speed sensor -3- → Rep. gr.45.
    – Remove drive shaft → Chapter.
    Vehicles with air suspension
    Front-wheel drive
    – Position vehicle on lifting platform → Chapter.
    – Remove wheel.
    Four-wheel drive
    – Position vehicle on lifting platform → Chapter.
    – Remove wheel trim; on light-alloy wheels, pull off trim cap (use puller in vehicle tool kit).
    – Loosen flange bolt securing outer joint of drive shaft (loosen only when vehicle is standing on its wheels -accident risk-) → Chapter.
    – Remove air spring → Chapter.
    2.png


    – Remove wheel speed sensor -3- → Rep. gr.45.
    – Remove drive shaft → Chapter.
    All vehicles
    – Detach brake caliper and brake disc → Rep. gr.46.
    – Secure brake caliper to body so that weight of caliper does not stretch or damage brake hose or brake pipe.

    3.png


    – Unscrew countersunk bolts -1-.
    – Take out wheel bearing unit.
    [​IMG] Caution
    Avoid dirtying or damaging the seal when laying down or storing the wheel bearing.

    4.png


    The wheel bearing -1- must always be pointing upwards.
    – Always put down the wheel bearing unit with the wheel hub -2- facing downwards.
    Installing
    Installation is carried out in the reverse sequence. Note the following points:
    Tightening torques → Chapter
    – Install drive shaft → Chapter.
    – On vehicles with air suspension, install air spring → Chapter.
    – On vehicles with four-wheel drive: Tighten flange bolt securing outer joint of drive shaft (vehicle must be standing on its wheels - accident risk) → Chapter.

    5.png
     
  6. Tank.

    Tank. Registered User

    239
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    wow! where do you find all this?

    So sorry put simply the only special tool is a torque wrench and no press is required
     
  7. RoyC

    RoyC Registered User

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  8. Tank.

    Tank. Registered User

    239
    11
    18
    Ah ideal!

    Did watch videos last night and can remove the hub unit from the car without specialist tools but would still need a press to remove the wheel hub from the bearing and into the new bearing :(
     
  9. RoyC

    RoyC Registered User

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    Servicing wheel bearing unit (only possible on four-wheel drive vehicles)
    Sorry, I thought that you asked for the wheel bearing unit



    Servicing wheel bearing unit (only possible on four-wheel drive vehicles)

    1a.png

    Special tools and workshop equipment required
    t Thrust plate -VW 401-
    t Thrust plate -VW 402-
    t Press tool -VW 407-
    t Press tool -VW 412-


    t Drift sleeve -40-20-
    2a.png


    t Press tool -VW 473-
    3a.png


    t Splitter 3 -Kukko 17/2-
    4a.png


    t Assembly tool -T40089/2-
    l Wheel bearing unit removed → Chapter
    5a.png


    Pressing wheel hub out of wheel bearing
    6a.png


    Pressing inner bearing race off wheel hub
    – Apply splitter between inner bearing race -1- and deflector ring -2-, and tighten spindle.
    [​IMG] Note
    Use commercially available splitter, e.g. Kukko 17/2.
    The deflector ring becomes deformed in this process and must then be renewed.
    7a.png


    – Press inner wheel bearing race off wheel hub.
    8a.png


    Renewing deflector ring for wheel bearing
    – Carefully prise off old deflector ring -1- using a screwdriver.
    – Fit new deflector ring on wheel hub.
    9a.png


    – Apply special tools as shown in illustration.
    1 - Press tool -VW 473-
    2 - Assembly tool -T40089/2-
    3 - Deflector ring
    4 - Wheel hub
    5 - Thrust plate -VW 401-
    – Press on deflector ring as far as radius on wheel hub using assembly tool -T40089/2- as illustrated.
    [​IMG] Note
    The deflector ring must be pressed on until it is seated against the radius on the wheel hub.

    10a.png



    Pressing wheel hub into wheel bearing
    – Apply the special tools as shown.
    1 - Press tool -VW 412-
    2 - Thrust plate -VW 402-
    3 - Wheel hub
    4 - Ball bearing
    5 - Thrust plate -VW 401-
    [​IMG] Note
    The machined surface of the wheel bearing outer race faces downwards.
    [​IMG] Caution
    Make sure no dirt gets between thrust plate -VW 401--5- and ball bearing -4- when pressing in the hub or when the parts are placed on a workbench, etc.
    – Install wheel bearing unit → Chapter.

    11a.png
     
    Last edited: Jun 13, 2015

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