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Discussion Starter #1
After struggling to find any info on the specific type of oil used in the UP! gearbox I took the plunge rung up VW and bought me a bottle of this:








VW Part Number G 052 527 A2 - £27.50 per Litre (Super expensive
)

I checked with the VW parts man multiple times to verify this is the specific oil for the VW UP! gearbox and he said yes. It does look and smells similar to what drained out originally.



This oil is VERYVERYthin, More like the viscosity of Automatic Transmission Fluid!

If you use a regular GL4 Gear oil in this gearbox gear shift quality will be reduced and will be much harder to shift when cold.

This VW part number does reference on some other oil manufactures websites so an alternative may be able to be found.






Quick guide out of the manual on how to change the oil:



<div style="line-height: 16.8px;">Drain Plug. Tighten Back to 30NM









Take the airbox off(just pulls up and away no bolts)

Put hand down behind engine on top of gearbox and feel for plastic blanking plug, its held in place by a torx bolt.

Remove bolt and pull plastic blanking plug out of gearbox (can be a little stuck at first)

Refill with oil (1 litre capacity)





Doing this procedure didn't cure any of the classic rattling noises you get with these gearboxes. They just seem to be noisey even with exra thick oil in them which i tried before. Ive resorted back to vw oil because shift quality is awful with thicker oils.
 

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Thanks for the guide.

What grade oil did you try before going back to standard?
Was considering trying some thicker oil to help with noise.
 

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Discussion Starter #3
I used this 75w-90 Fully Synthetic

http://www.commaoil.com/productsguide/view/6/386



Lookings at the technical data regarding true viscosity's:


The one I tried Comma MVMTF 75w-90
Viscosity @ 100�°C 16.0 cSt (Very thick in comparison)
Viscosity @ 40�°C 90 cSt









Some others as reference these only give the100�°C CST Value:

(Manual Tranny Fluids)<br style="line-height: 19.5px; : rgb230, 230, 230;">16.7 = Motul MOTYLGEAR 75-90 GL-4/-5<br style="line-height: 19.5px; : rgb230, 230, 230;">15.6 = VW G50/G51 GL-4<br style="line-height: 19.5px; : rgb230, 230, 230;">15.6 = Redline MT-90 75-90 GL-4<br style="line-height: 19.5px; : rgb230, 230, 230;">15.2 = Mobil 1 Synthetic 75W-90 GL-5<br style="line-height: 19.5px; : rgb230, 230, 230;">15.2 = Motul Gear 300 75-90 GL-4/-5<br style="line-height: 19.5px; : rgb230, 230, 230;">15.0 = Elf Tranself Synthese FE 75-90 GL-4/-5<br style="line-height: 19.5px; : rgb230, 230, 230;">14.9 = AMSOIL AGL 80W-90 GL-5<br style="line-height: 19.5px; : rgb230, 230, 230;">13.8 = Amsoil MTG 75-90 GL-4<br style="line-height: 19.5px; : rgb230, 230, 230;">10.6 = Redline MTL 70-80 GL-4<br style="line-height: 19.5px; : rgb230, 230, 230;">9.6 = AMSOIL MTF Synchromesh Trans fluid (GM/Chrysler) None<br style="line-height: 19.5px; : rgb230, 230, 230;">9.08 = Penzoil Synchromesh trans fluid None<br style="line-height: 19.5px; : rgb230, 230, 230;">7.5 = Redline D4 ATF Dexron III / Mercon / API GL-4<br style="line-height: 19.5px; : rgb230, 230, 230;">6.5 = VW G-052-171-A2 None
6.38 = VW G-055-726-A2 None
6.3 = VW G52 (part numbers G052726A2 / G05272601)



(Automatic Tranny Fluids - except for Redline D4 dual-use)<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">8.3 = Honda CVT Fluid<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">7.6 = Mobil 1 Synthetic ATF<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">7.5 = AMSOIL Automatic transmission fluid ATF<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">7.5 = Redline D4 ATF Dexron III / Mercon / API GL-4<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">7.4 = Mobil 1 Synthetic Dexron/Mercon<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">7.2 = Redline Synthetic ATF Dexron II / Mercon<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">7.1 = Mobil 1 Synthetic Multi-vehicle ATF<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">7.1 = AMSOIL Ford type F auto trans fluid<br style="font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 13.3333px; line-height: 19.5px; : rgb230, 230, 230;">5.5-6 = Ford Mercon SP







As you can see g52 based vw gear oil is very thin, comparable to atf!

Redline D4 ATF is the closest stuff in terms ofviscosity's which seems suitable for manual transmissions




Edited by: hypojam
 

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1 liter is not enough it´s 1,1 some even put 1,2 in then.

i got golf 4 fully sync. it´s way better then that bmt stuff they use now, my problems are 905 gone with going away from what was in from factory
but very nice write up non the less

regards
RIX

Edited by: RIX
 

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Does it require a 17mm allenkey for the drain plug? What about the fill hole?

Im going to try Gm syncromesh and see if it resolves my cold shifting problems like it has for everyone else with VW's.
<h1 id="title" ="a-size-large a-spacing-none" style="-sizing: border-; padding: 0px; margin-right: 0px; margin-left: 0px; font-family: Arial, sans-serif; text-rendering: optimizeLegibility; font-weight: 400; color: rgb17, 17, 17; font-size: 21px !imant; line-height: 1.3 !imant;">
</h1>
 

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Discussion Starter #6
Yea 17mm for the drain plug. The upper fill cap has a smallish torx bit, Undo the torx and pull the plastic fill cap out, it o-ring sealed so can be a little tough at first.
 

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When i cross referenced the part number that vw use it comes back with a 75w spec oil is this correct?? I was going to use castrol syntrans 75w fully synthetic oil but am now a little confused !!
 

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Discussion Starter #8
Use the VW stuff anything else won't be any good. I tried quite a few and the VW stuff always felt best. You shouldn't really need to change it often every 80k miles will be adequate
 

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Hi, Im from Brazil and i have a 82cv VW up equiped with Sq100 transmission.
I brought 1 liter of G052 527 R2 for my 0CT transmission and the mechanic took out 2,5 litres of oil.
so i needed to buy this pretty expensive oil again.
I advice for you guys, 1,1 litre is not enought, otherwise the car would come with 1 litre gear oil.
 

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1 liter is not enough it´s 1,1 some even put 1,2 in then.

i got golf 4 fully sync. it´s way better then that bmt stuff they use now, my problems are 905 gone with going away from what was in from factory
but very nice write up non the less

regards
RIX

Edited by: RIX
[/QUOT
1 liter is not enough it´s 1,1 some even put 1,2 in then.

i got golf 4 fully sync. it´s way better then that bmt stuff they use now, my problems are 905 gone with going away from what was in from factory
but very nice write up non the less

regards
RIX

Edited by: RIX
Hi, RIX, what spec and brand was it?
 

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75w-80 GL-4 manual gear oil.... Currently available from VWMotorParts for £11/litre. I think the one stated in the original post may be for DSG boxes?
 

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Just to add to this I have the electric version and asked VW dealers about the (presumably 1 litre or so of) oil in the diff/fixed ratio reduction box. They didn't seem even to know it had any oil anywhere. VW UK were equally no use. I eventually contacted the factory and found that they use manual transmission fluid @ 75W - so its (Shell) VW MTF 75w
 
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