Gearbox oilchange help

Lex Dysia · 12-05-2008, 19:01

I'm after changing my gearbox oil but having never done it I need help to locate the filler plug and the drain plug. Any help greatly appreciated

***DGW*** · 12-05-2008, 19:36

According to Haynes, the transmission filler/level plug is situated on the front of the transmission casing. To get at it you will need to first remove the engine undershields. The job is best done on a ramp but failing that jack the vehicle up and support it front and rear on axle stands so that it is level. You will need 1.9 litres of Skoda (or equivalent) G50 SAE 75W/90 synthetic gear oil. (Autodata CD2 says 2 litres).

Haynes doesn't mention a drain plug...

Lummox · 12-05-2008, 19:40

To do it 'properly' you need to remove the filler plug and the diff drain plug. The take out one of the selector pins from the casing and drain the box out, this gets the oil out of the casing not just the diff. then replace the o ring on it , refit drrain bung and refill. Takes around 2 litres.

Go some propper oil and the correct filling tool if you want to borrow it, does make life a lot easier.

Lex Dysia · 12-05-2008, 19:51

Sounds a bit complicated lummox

Would I get away with sucking the old oil out from the filler and refilling it, not ideal I know but I figure with fresh oil it has to be better for the box

BTW I was going to use millers trx synth 75w90 is this ok?

Lummox · 12-05-2008, 20:01

No you cant suck it out through the filler it wont get anything out. Its not complicated just needs to be dont right. Not sure on the trx synth tbh, synthetic gearbox oils seem to cause nothing but balll ache in VAG vehicles in my experiance. I have plenty of the propper oil going spare. Can give you a hand chaging it if needs be. Could even do a little how to maybe.

slackbladder · 12-05-2008, 21:30

To Carry out a 20k service all that is required is to check the oil level.
Make sure the car is level, remove the onside wheel and the plug can be removed with a 24mm alen key (this cost me 7 quid) The oil level should be level with the underside of this plug.
Hope this helps?

Lummox · 12-05-2008, 21:31

Pretty sure the gearbox oil level check is on the major service (40K).

Lex Dysia · 12-05-2008, 22:13

Quote:

Originally Posted by Lummox

No you cant suck it out through the filler it wont get anything out. Its not complicated just needs to be dont right. Not sure on the trx synth tbh, synthetic gearbox oils seem to cause nothing but balll ache in VAG vehicles in my experiance. I have plenty of the propper oil going spare. Can give you a hand chaging it if needs be. Could even do a little how to maybe.

Thanks Lummox may take you up on that, Don't really want to start something that I may not be able to finish. Why cant it be simple like engine oil change

. Car has covered nearly 100k so reckoning it could only do it good, havent had any gearbox probs I'm just a believer in regular fresh fluid changes. Will pm you and we can arrange something hopefully

cheezemonkhai · 13-05-2008, 03:37

Quote:

Originally Posted by Lummox

No you cant suck it out through the filler it wont get anything out. Its not complicated just needs to be dont right. Not sure on the trx synth tbh, synthetic gearbox oils seem to cause nothing but balll ache in VAG vehicles in my experiance. I have plenty of the propper oil going spare. Can give you a hand chaging it if needs be. Could even do a little how to maybe.

I used the TRX fully synth gear oil in my TDI 110 and it worked a treat, but if ross has the VAG stuff going for a good price.

12-05-2008, 19:01	#1
Lex Dysia Briskodian Join Date: Oct 2007 Location: Buckinghamshire Posts: 520 Members Car: Skoda Octavia VRS 2002 Thanks: 34 Thanked 54 Times in 51 Posts	Gearbox oilchange help I'm after changing my gearbox oil but having never done it I need help to locate the filler plug and the drain plug. Any help greatly appreciated __________________ Upper & Lower S3 Strut braces-Forge FMDV006 DV-PiperX panel filter-Whiteline adjustable rear arb-Superpro Dogbone, Control arm & Front ARB bushes-LCR Splitter-Milotec Grilles-Golf MK4 Aero wipers-KVW100-Cruise Control-Parking Sensors-18" RS8 Alloys-N75H-Revo Stage 1-TO DO: Turbo back exhaust-Koni FSD and H&R springs (5 Days to go)-Seat & Door Card Leather retrim and a respray.

12-05-2008, 19:36	#2
*DGW* BRISKODA Staff Join Date: Oct 2002 Location: Cambridgeshire Posts: 17,300 Members Car: Octavia 1.8T 4X4 Estate & Fabia vRS Thanks: 51 Thanked 208 Times in 157 Posts	Re: Gearbox oilchange help According to Haynes, the transmission filler/level plug is situated on the front of the transmission casing. To get at it you will need to first remove the engine undershields. The job is best done on a ramp but failing that jack the vehicle up and support it front and rear on axle stands so that it is level. You will need 1.9 litres of Skoda (or equivalent) G50 SAE 75W/90 synthetic gear oil. (Autodata CD2 says 2 litres). Haynes doesn't mention a drain plug... __________________ Denis 2002 Octavia 1.8T 4X4 turbo Estate - rebreathed on by Jabba ... 31.93mpg 2007 Fabia vRS - CC, ESP and full leather trim by Seat Surgeons ...48.57 mpg...

12-05-2008, 19:40	#3
Lummox Cupra Bush King Join Date: Sep 2003 Location: Newport Pagnell Posts: 22,497 Members Car: Mk2 Golf GTi 16v and building a 20VT MK2. Images: 2 Thanks: 22 Thanked 760 Times in 638 Posts	Re: Gearbox oilchange help To do it 'properly' you need to remove the filler plug and the diff drain plug. The take out one of the selector pins from the casing and drain the box out, this gets the oil out of the casing not just the diff. then replace the o ring on it , refit drrain bung and refill. Takes around 2 litres. Go some propper oil and the correct filling tool if you want to borrow it, does make life a lot easier. __________________ www.unit18.co.uk Remapping Service now available, PM for details.

12-05-2008, 19:51	#4
Lex Dysia Briskodian Join Date: Oct 2007 Location: Buckinghamshire Posts: 520 Members Car: Skoda Octavia VRS 2002 Thanks: 34 Thanked 54 Times in 51 Posts	Re: Gearbox oilchange help Sounds a bit complicated lummox Would I get away with sucking the old oil out from the filler and refilling it, not ideal I know but I figure with fresh oil it has to be better for the box BTW I was going to use millers trx synth 75w90 is this ok? __________________ Upper & Lower S3 Strut braces-Forge FMDV006 DV-PiperX panel filter-Whiteline adjustable rear arb-Superpro Dogbone, Control arm & Front ARB bushes-LCR Splitter-Milotec Grilles-Golf MK4 Aero wipers-KVW100-Cruise Control-Parking Sensors-18" RS8 Alloys-N75H-Revo Stage 1-TO DO: Turbo back exhaust-Koni FSD and H&R springs (5 Days to go)-Seat & Door Card Leather retrim and a respray.

12-05-2008, 20:01	#5
Lummox Cupra Bush King Join Date: Sep 2003 Location: Newport Pagnell Posts: 22,497 Members Car: Mk2 Golf GTi 16v and building a 20VT MK2. Images: 2 Thanks: 22 Thanked 760 Times in 638 Posts	Re: Gearbox oilchange help No you cant suck it out through the filler it wont get anything out. Its not complicated just needs to be dont right. Not sure on the trx synth tbh, synthetic gearbox oils seem to cause nothing but balll ache in VAG vehicles in my experiance. I have plenty of the propper oil going spare. Can give you a hand chaging it if needs be. Could even do a little how to maybe. __________________ www.unit18.co.uk Remapping Service now available, PM for details.

12-05-2008, 21:30	#6
slackbladder Briskodian Join Date: Sep 2007 Location: Birmingham Posts: 17 Members Car: S Reg. Ocatvia 1.6 Glxi Hatch Thanks: 0 Thanked 1 Time in 1 Post	Re: Gearbox oilchange help To Carry out a 20k service all that is required is to check the oil level. Make sure the car is level, remove the onside wheel and the plug can be removed with a 24mm alen key (this cost me 7 quid) The oil level should be level with the underside of this plug. Hope this helps?

12-05-2008, 21:31	#7
Lummox Cupra Bush King Join Date: Sep 2003 Location: Newport Pagnell Posts: 22,497 Members Car: Mk2 Golf GTi 16v and building a 20VT MK2. Images: 2 Thanks: 22 Thanked 760 Times in 638 Posts	Re: Gearbox oilchange help Pretty sure the gearbox oil level check is on the major service (40K). __________________ www.unit18.co.uk Remapping Service now available, PM for details.

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