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  1. #1
    Turkster's Avatar
    Bro.Paul 2.5TDI Quattro Sport

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    Question Gear Box & Diff Oil Change

    I should know this one but I don't, Shame on me.

    When should the Gear Box and Rear Diff oils be changed?

    Thanks

    Paul

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  3. #2
    alpesh26's Avatar
    1st Gear

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    I asked Audi about the gearbox oil, and apparently they are sealed for life so the oil doesn't need changing. Not sure about the diff
    Audi A4 B7 1.9TDi SE | Auto Lights, Wipers & Dimming Mirror | Cruise Control | DIS

    Mod's so far: Ambient light, Cupra R splitter, 4300k HID's, Painted Brake Calipers & Hubs, Dice Electronics iPod & Aux, Leather Armrest, Interior, Sidelight & Number Plate LED's, Curry Hooks, Tie Downs, Ambient Footwell LED's, Footwell Lights, Shadow Chrome S-Line (RS6) wheels, Mudflaps, Votex Rear Diffuser, RS4 Rear ARB

  4. #3
    CMD
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    Pointing Forward's!!!!!!!!!

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    I changed my gearbox oil last year, you must use AUDI spec gearbox oil.. I will post up teh part numbers later
    AUDI A4 190T S-LINE.


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  5. #4
    3rd Gear

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    Audi state that the gearbox and diffs are sealed for life......

    However lots of people change the gearbox oil, just make sure you use the genuine Audi oil, as for rear diffs have never heard of anyone doing this, it's only a requirement for vehicles with Haldex electronic 4wd systems...... B6 models use torsen mechanical items....
    03MY 52 reg 1.9 TDi 130PS Quattro Sport Avant - 170bhp remap, RNS-E+OEM bluetooth, B7 wiper arms/blades, 4300K HID+nightbreakers/LED sidelights, rear tints, new lights all round, new front/rear screens, frt armrest, s-line kit, cruise/DIS, B7 gearknob/aluminium trims, parking sensors, black grilles, RS4 RARB, S4 front end, black 18" RS6 alloys

    Still waiting..... S4 rear bumper, exhaust tips, coilovers, leather recaro's.... phew...

  6. #5
    2nd Gear

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    [QUOTE=CMD;1403391]I changed my gearbox oil last year, you must use AUDI spec gearbox oil.. I will post up teh part numbers later[/QUOT

    CMD did the G box feel any better/different following the oil change
    B6 S4 4.2L V8 Cabriolet Black Manual Quad Milltek Non Res

  7. #6
    CMD
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    Pointing Forward's!!!!!!!!!

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    No to be fare. I just done it as part of a service along with I wanted to change it (6 years old)
    AUDI A4 190T S-LINE.


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  8. #7
    2nd Gear

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    No to be fare. I just done it as part of a service along with I wanted to change it (6 years old

    Ok, CMD thanks for your reply
    B6 S4 4.2L V8 Cabriolet Black Manual Quad Milltek Non Res

  9. #8
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    Bro.Paul 2.5TDI Quattro Sport

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    umm, if they was sealed for life then why is there a plug there to undo? im on 211k miles and there is not record of it being changed, saying that the service manager at Audi has never pointed to it too,

  10. #9
    4th Gear

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    Dont know if this helps anyone with a manual but had to have the gearbox oil replaced on my 2.5tdi tiptronic cos someone ,not me,inadvertently undid the drain plug when doing an oil service.The fluid which came out was black and of course the car had to be recovered to Audi to replace the fluid.The bill showed the job under Multitronic when I queried this they said they had no set up to show a Tiptronic cos its supposed to be sealed forlife.Anyway no harm done except the £155 cost and I believe its better but that may be wishful thinking.Some research seemed to show that the suppliers of these units recommend a fluid change every 100k and mines on 115k

  11. #10
    Avant4me's Avatar
    The're Graphite not black!!

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    Sealed for life my eye!!

    Had all my fluids replaced at the last service and i have to say GL4 and GL5 fluids are expensive. The mechanic who drained the old out said it was completely broken down and definitely needed replacing. Glad it was done.

    Official Fan Club member No 001!!

  12. #11
    4th Gear

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    I was told the oil is 'sealed for life' too, but no harm in changing it. My 1st to 2nd gear seems better in the cold as a result, and the old oil was pretty thin and black.

    I got the genuine stuff, at main dealer parts prices it was about £86 though. Still, it hadn't been changed for 120,000 miles, and probably won't need doing again!

    I think it was 2.7 litres for the gearbox, and 1.5 litres for the rear diff, though it was specific and different oil for the gearbox and diff.

    AG 051 911 A2 - Gearbox Oil - 3 x 1ltr bottles £14.97 excl VAT each

    AG 052 145 A1 - Diff Oil - 3 x 0.5ltr bottles £8.75 excl VAT each

    I have the 5 speed box though, so yours might be different, just check, but the parts guy said it was the same for all the quattro's. I had to buy a splined drive socket with the hole in the middle to remove the gearbox drain plug, and used a piece of hosepipe and funnel to refill. Check your fill plugs will come out before you drain too, my rear diff one was a pig to get out!
    Last edited by Tooks; 1st November 2011 at 18:25.
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  13. #12
    Reverse Gear

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    where do you put gear box oil in an audi A4 2.4 SE AUTO?

  14. #13
    4th Gear

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    If its like my 2.5tdi there will be a filler plug on the side but check if it needs an expert cos mine needs temp controlled filling

  15. #14
    1st Gear

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    I've heard the gear oil changes need to be temperature controlled so I won't be attempting this myself. Popped in to Audi Warrington today and they're gonna call me back on Monday with a price once speaking to the master tech. Apparently it's 0.9 hrs (or 54 minutes labour) plus the fluids. Will update if I get a price.
    No oil can be too clever after 174K and god knows how many gear changes.
    A4 (B6) 2.5TDI QUATTRO SPORT AVANT

  16. #15
    CMD
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    Pointing Forward's!!!!!!!!!

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    Quote Originally Posted by haytch75 View Post
    I've heard the gear oil changes need to be temperature controlled so I won't be attempting this myself.
    Sounds like a load of BS to me, myself and friend done mine last October and have had no issues or problems.
    AUDI A4 190T S-LINE.


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  17. #16
    4th Gear

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    Quote Originally Posted by CMD View Post
    Sounds like a load of BS to me, myself and friend done mine last October and have had no issues or problems.
    Agreed .This only applies to the auto boxes and I helped change theoil on an S3 recently which is fine

  18. #17
    Avant4me's Avatar
    The're Graphite not black!!

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    Temp control

    The only Temperature control required is like changing the oil in the engine, needs to be hot to get it all out!!!

    It will be minging when it comes out mind. mIne had done 180k

    Official Fan Club member No 001!!

 

 

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