Hi I have just changed the gearbox oil in my 2013 6 speed auto (Asin gearbox). Mine is a 2.2 diesel but the gearbox is the same on the petrol. Hope you find this useful if you want to do it yourself.
My car has done 89000 miles and never had the gearbox oil changed. I have been planning to do it for three years but could not work out how to open the fill plug, which I eventually worked out, after several failed methods.
Firstly I have read the workshop manual, researched this forum and watched many videos. The issues are if following the manual you need to remove and recalibrate the gear shift module with specialist equipment so it is not a DIY option. There is an effective method on here by pumping the oil in from the bottom.
There some awful you tube videos showing filling the gearbox by an oilway, which I have been warned against as it may bypass the internal filter.
In this method I follow the workshop procedure without removing the gear shift module, it can be done. 😀
Level of difficulty - moderate
Essential equipment
10mm socket, 7mm socket or flat screwdriver, t55 torx bit with 10mm shank, 10mm crows foot wrench, extension and ratchet, t40 torx bit, 17mm hex key socket, cheap syringe with tube, AW1 grade transmission fluid, 10l gives three changes. Something to catch and store the old oil and lots off rags.
New seals, fill plug O ring, (sorry don't have the number), drain plug alloy crush washer LR002461G, level plug O ring LR000869.
Optional equipment
torque wrench, diagnostic device with live data for gearbox oil temperature, plus if possible the function to reset the oil degradation counter. (I use a thinkdiag, but many others will do it).
Firstly raise the car and level it so you can get under safely, I use a spirit level under the sill, and remove the engine under tray which is 7x10mm bolts.
Engine compartment
Undo the air intake clips arrowed and remove it by pressing the clip where it joins the air box.
Remove the 10mm bolt and 10mm nut shown.
Slacken the clip around the air duct, 7mm socket or flat blade screwdriver.
Disconnect the electrical plug from. the MAF sensor, and carefully remove the wire support clips, one just behind the plug, and one low down on the air box side near the engine, they both work out with fingers.
Pull the airbag up vertical and work it free from the air duct.
![Image]()
You are now looking down on the gear shift module, the fill plug is below it.
![Image]()
Using a light and a bit of an angle you can see the fill plug next to the transmission control manual.
![Image]()
This is the part that taxed me for a while, (years), how to get to the fill plug when direct access from above is blocked by th gear shift module? I solved it with a t55 torx bit from an impact set, it has a 10mm hex shank, I connected a 10mm flexible crows foot wrench to it and a long extension, this gave enough clearance once the t55 bit was in place to pass the module .
Loosen the fill plug.
It took quite a bit of pressure the first time I undid it and went with a crack.
![Image]()
![Image]()
![Image]()
Having removed the fill plug I went under the car. Firstly pull the rubber insulator to the side before removing the t40 level plug, and then the 17mm hex drain plug and draining the oil until it stopped.
![Image]()
![Image]()
![Image]()
I am going to continue on the reply to this post as I think I have reached the photo limit.
My car has done 89000 miles and never had the gearbox oil changed. I have been planning to do it for three years but could not work out how to open the fill plug, which I eventually worked out, after several failed methods.
Firstly I have read the workshop manual, researched this forum and watched many videos. The issues are if following the manual you need to remove and recalibrate the gear shift module with specialist equipment so it is not a DIY option. There is an effective method on here by pumping the oil in from the bottom.
There some awful you tube videos showing filling the gearbox by an oilway, which I have been warned against as it may bypass the internal filter.
In this method I follow the workshop procedure without removing the gear shift module, it can be done. 😀
Level of difficulty - moderate
Essential equipment
10mm socket, 7mm socket or flat screwdriver, t55 torx bit with 10mm shank, 10mm crows foot wrench, extension and ratchet, t40 torx bit, 17mm hex key socket, cheap syringe with tube, AW1 grade transmission fluid, 10l gives three changes. Something to catch and store the old oil and lots off rags.
New seals, fill plug O ring, (sorry don't have the number), drain plug alloy crush washer LR002461G, level plug O ring LR000869.
Optional equipment
torque wrench, diagnostic device with live data for gearbox oil temperature, plus if possible the function to reset the oil degradation counter. (I use a thinkdiag, but many others will do it).
Firstly raise the car and level it so you can get under safely, I use a spirit level under the sill, and remove the engine under tray which is 7x10mm bolts.
Engine compartment
Undo the air intake clips arrowed and remove it by pressing the clip where it joins the air box.
Remove the 10mm bolt and 10mm nut shown.
Slacken the clip around the air duct, 7mm socket or flat blade screwdriver.
Disconnect the electrical plug from. the MAF sensor, and carefully remove the wire support clips, one just behind the plug, and one low down on the air box side near the engine, they both work out with fingers.
Pull the airbag up vertical and work it free from the air duct.
You are now looking down on the gear shift module, the fill plug is below it.
Using a light and a bit of an angle you can see the fill plug next to the transmission control manual.
This is the part that taxed me for a while, (years), how to get to the fill plug when direct access from above is blocked by th gear shift module? I solved it with a t55 torx bit from an impact set, it has a 10mm hex shank, I connected a 10mm flexible crows foot wrench to it and a long extension, this gave enough clearance once the t55 bit was in place to pass the module .
Loosen the fill plug.
It took quite a bit of pressure the first time I undid it and went with a crack.
Having removed the fill plug I went under the car. Firstly pull the rubber insulator to the side before removing the t40 level plug, and then the 17mm hex drain plug and draining the oil until it stopped.
I am going to continue on the reply to this post as I think I have reached the photo limit.
🤣
