Just did 4.8is transmission oil pan drop and filter.

[williak7]

Originally Posted by SlickGT1

You might want to visit someone with a DIS/GT1 computer to reset your adaptations, and maybe visit the dealer to get software updates.

I tried the holding gas pedal to the floor for 30-40 seconds. wasn't sure if that worked for a 2005. I didn't notice anything different.

Since I own 3 BMWs I should look into a DIS/GT1 tool. I need to look at suggestions for which tool to purchase.

Kevin

[SlickGT1]

DIS GT1 would be the tool of choice.

I don't know if you can do updates with it by yourself though.

[dkl]

You can do a relatively "safe" flush by disconnecting and draining at the transmission cooler line while filling it normally at the fill hole with the engine running until you see clear fluids flowing out of the line. That should get most of the old fluids out of the torque converter. This is how my indy did mine a couple of years ago. It did took approx. 12 to 14 liters of fluids to do this.

[SlickGT1]

Originally Posted by dkl

You can do a relatively "safe" flush by disconnecting and draining at the transmission cooler line while filling it normally at the fill hole with the engine running until you see clear fluids flowing out of the line. That should get most of the old fluids out of the torque converter. This is how my indy did mine a couple of years ago. It did took approx. 12 to 14 liters of fluids to do this.

This is what I would be afraid to do. You will probably stir so much crap up, that it might shock the trans. Somehow it does know/measure adaptations. I feel perfectly fine dropping the pan the first time. Then I will just drain via the plug, and fill every oil change. In no time, the fluid will be at 99% renewed.

[mgbmwx5]

Subscribed

[jcorreanyc]

Getting ready to do this on my 4.8is. I bought this huge replacement drain bolt. It looks like it requires a 17mm or 19mm male hex/Allen key to turn this. Is this the right drain plug or is there another?

[mgbmwx5]

Originally Posted by jcorreanyc

Getting ready to do this on my 4.8is. I bought this huge replacement drain bolt. It looks like it requires a 17mm or 19mm male hex/Allen key to turn this. Is this the right drain plug or is there another?

How about a pic so we can see your plug.

[StephenVA]

Subscribed......

This will be my winter project.

[mgbmwx5]

This should work Stops, Drains & Drain Plugs - Plumbing*at The Home Depot

[LVP]

I was under the impression you could get the trans temp reading by going through the DIS procedures for checking or filling the trans fluid. Can someone who has done this with DIS confirm? It seems so critical to the process, I can't imagine BMW would leave it to every mechanic to have a hand held pyrometer to measure temp at some randomly chosen point on the trans. I do plan to go through the level check procedure in DIS within the next month or so. When I do, I'll snag some screen shots. Would be good to know beforehand though

Cheers.