Remove strut brace to access the 24mm gearbox drain bolt located on the left side of the gearbox if your standing infront of the car. Put the a bucket under the drain bolt area ready to catch the oil. Put the bolt in a safe place & allow the oil to drain. Once all of the oil has drained refit the plug with the washer securley. Shaun Whale from 4WD Action shows us how. All you'll need to do a gearbox oil change is a car jack, jack stands or ramps, level bar, socket or spanner, drain plug washer, oil drain pan, some Don't overfill or underfill the gearbox, engine oil or differential. Fill the gearbox until the oil BARELY begins to seep out of the hole in the side of the box. Then, let the car sit for a few minutes or so and check it again. With or without overdrive, that's how you do it. I always removed the cover and sucked out the oil, after a failed attempt of sucking out the dipstick once. You can get the gearbox much cleaner that way and get all the oil out. Taking off the cover is pretty easy. I found a handy way to get the most oil out of the XU's is to gently heat the gearbox with a heat gun. How to change the transmission fluid (gearbox oil) on a 2002 to 2009 Peugeot 206 1.1 petrol with the MA5 manual transmission. Thanks for watching. Please com Manual guide for gearbox oil replacement – step by step. You can read recommendations on how to manually change the gearbox oil in your car manual. It gives you tips for checking of this specific oil level and where to find the drain plug for the gearbox oil. Although, when I enquired at the local dealership they said that it should be done about every 40k miles (and uses 7-8 litres of oil). Strange ! They also recommended that I use Castrol Dexron III because it's what they use. My car has done about 103k miles so I guess I can hold for about another 10-15k miles. The gearbox needs to have the oil changed at every 20k or 2 years which ever comes first. You should also change your transfer box and rear axle oil at the same time. It sounds rather frequent but it is correct. However, it is easy to do it yourself if you don't mind crawling around underneath. Gently break the gasket seal with a screwdriver, if necessary. Step 3: Clean the gasket surfaces on both the pan and the transmission housing. Inspect the pan for metal shavings or other signs of internal damage, and then clean it with solvent. Step 4: Remove the old transmission filter and O-ring. The filter contains fluid, so keep the drain i80P.