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How to replace Gearbox Oil
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Old 16 Dec 2009, 12:54 AM   #1 (permalink)
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How to replace Gearbox Oil

Level of Difficulty
* *
Very easy job for anyone that wants to do it themselves
Tools Needed:
21mm socket
Rachet
Small extension
Garden hose ideal or tubing to fit filler hole
Funnel and rags
Gearbox oil capacity=3.5 litres-4 litres


Jack up car and support with AXLE STANDS always support car with axle stands. Take out the filler dipstick Pic.1 as this will let gear oil drain faster, open the 21mm bolt directly under gearbox Pic.2 have your tray ready to collect oil and drop the oil out, renew the washer on the 21mm drain bolt if it looks worn. I like straining the oil puttting it through like a sieve to see what way gearbox running. See if any bits come out, tiny fragments ok but reasonable size bits will need further investigation of gearbox internal problems also if you have a magnetic drain plug it will collect these fragments so you can have a look and clean it before it goes back on.
Once it all drained, clean the drain plug put back on the washer and tighten the bolt then lower car to ground.
Use your garden hose or tubing Pic.3 put in top hole of gearbox where dipstick came out, put funnel on top of tubing and fill to the 'F' Mark on the gearbox dipstick but check level regulary when filling Dont over fill as this might stir up problems down the line by blowing oil seals.
Once filled up put back on the gearbox oil dipstick, take for a spin and check for leaks from drain plug and job done simple











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Last edited by stiimpreza1984; 10 Apr 2010 at 04:34 PM.
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Old 16 Dec 2009, 12:55 AM   #2 (permalink)
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Re: How to replace Gearbox Oil

Might want to make this a sticky Pete
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Old 16 Dec 2009, 07:34 AM   #3 (permalink)
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Re: How to replace Gearbox Oil

Quote:
Originally Posted by stiimpreza1984 View Post
Might want to make this a sticky Pete
Thanks Darren ... Sticky it is.
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Old 02 Oct 2012, 08:42 AM   #4 (permalink)
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Re: How to replace Gearbox Oil

I'm looking to do this on my 2002 wrx, but after reading up on it a few mention a torx bolt having to be taken out as well as the 21mm, will ur guide work for my car or will I need the torx bolt out as well?
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Old 02 Oct 2012, 10:49 PM   #5 (permalink)
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Re: How to replace Gearbox Oil

follow the above guide and you CAN'T go wrong
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