todinlaw

I had 7,000 miles on my 3 and about 1/2 of that was track miles. I decided to change the LSD oil, and now that I have I am glad i did. I have posted some pic of how dirty the oil was and the amount of metal shavings on the drain plug magnet.

I jacked the car up put it on jack stands . I had some trouble at first locating the fill plug. at first I thought it was on the passenger side but it is not the fill plug is on the drivers side about 6 inches forward of the drain plug. It is real close to some sort of heat exchanger and you do not have much room to move.

Tools Needed
Torx 25 (to remove under body panels)
Torx 55 or 10mm allen (to remove fill plug, drain plug)

supplies: Mobil Delvac 75w90 and a cheap hand pump.

1)put car on jack stands and remove two under body panels
2)Locate and loosen the fill plug. you will need a angled t55 or 10 mm allen 45 degrees
3:you will see a wire running just under the fill plug follow it and unplug it just to get it out of the way.
4) after the fill plug is loose then open the drain plug and let it drain. I like to give it a good 30 min. (motor and trans should be hot) You also want the car level, it the nose is lower it will not drain all the way. I jacked the front up to level it.
5) put the drain plug back and went to the fill plug, I pulled out my cheap hand pump. taped the inlet hose into the bottle and hand a helper slowly pump the pump until oil started running out of the fill hole.
6) I let the excess drain off. I lowered the left front about 3 inches to drain off a little of the extra fluid. I do not know if I had to do this but the factor fill was not running out of the fill plug. so I just wanted to back it off a bit.
7) I installed the fill plug and then reinstalled the under panels and done.

mooty

whew, i thought i got the sides confused. glad you found fill plug on driver side.
i was about to chk my car again.

Carrera GT

Quite a lot of metal on the magnet (suggesting a lot more was being washed off and back into the oil.) This makes me think it's worth maintaining a more frequent check on the plug magnet and perhaps adding one of those neodymium suckers.

todinlaw

No you were right the first time. I just assumed for a second that you were maybe talking about the 996. anyway, when someone posted that it was by the oil cooler I had to crawl under the car another foot to find it. Like going back in a cave.

TRAKCAR

Hey is this different from transmission oil? I thought it was the same?

todinlaw

It is the same as far as I know. this is the original fill oil. http://www.lufteknic.com/Merchant2/m...ode=lubricants

Greygt3

Thanks Frank. I haven't changed my tranny oil yet in the 997 but used to do the 996 Gt3 every thousand miles. Yeah I'm messed up just ask my girlfriend, she moved out two weeks ago.

mooty

we have transaxle, so tranny oil = diff oil. same oil, same fill, same drain.

TRAKCAR

Thanks Mooty!

Happy New Year!