BMW M4 DCT Fluid & Filter Replacement DIY (2015-2020 BMW F80 M3, F82 M4, F83 M4, F87 M2C)

►Every gearbox needs healthy lubricating fluid, whether three pedals or two. BMW's DCT is no exception, regardless of BMW's "lifetime fill" claim, so replacing the fluid and filter is something you may want to look into.

All lubricating fluids contain minerals and compounds designed to keep the rotating components smooth, cool, and happy. But with extensive use, the oil will break down, losing its effectiveness. While the DCT won't necessarily tell you its fluid needs replacing, try sticking to an interval near 60-75,000 going forward.

Wrench with Mike Hidalgo, FCP Euro's Professional DIY'er, as he replaces the DCT fluid and filter on an F82 M4.

Shop the parts used in this video:

00:00 - Intro
02:31 - Tools Needed
04:09 - Overview & Getting Access
06:00 - Draining the Transmission Fluid
07:40 - Transmission Pan Removal
08:58 - Prepping the New Pan
11:07 - Suction Jet Pump Removal
11:29 - Transmission Fluid Filter Removal
12:01 - Pressure Side Filter Replacement
12:35 - New Transmission Fluid Filter Install
15:07 - Suction Jet Pump Install
16:15 - Transmission Pan Install
18:28 - Filling the Transmission with Fluid
20:22 - Warm Up Procedure
27:37 - Wrap-up

This video applies to the following vehicles:
E82 and E88 135i
E9X 335i, 335is, M3
F8X M2 / M3 / M4 / M4 GTS
F10 M5
F06 / F12 / F13 M6
Z4 (E89)

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[marcorgnt]

Hey guys. I did this job on my E92 335is with the same DCT, but with the stock shallow transmission pan.

There is a fill procedure in ISTA that you need to run while filling the DCT up with fluid. This procedure shifts some things around in the transmission and lets you get an extra liter or 2 of oil in, and avoids the rough shifts you might experience if you just drain & fill. Look at 6:18 in the video and see how much cold fluid is draining out just by opening the fill plug. There is no way you can fill that much fluid inside the transmission while it is level. The ISTA procedure allows you to get that extra fluid in.

[soopermarkus]

That fall line pan is great. I got almost an extra liter in. I ended up using all 7 and needing a little more because I spilled a little and accounting for the overflow after the heated fill. DIY at home on quickjacks, you can use a cement mixing pan to catch and undo all of the screws on the pan except for the front or back to let it sag down at an angle. That lets the fluid drain out in only one direction and not all over yourself.

[rhollyday]

Great vid!
You don't need an Autel. I use Bimmerlink iPhone app with a bluetooth ODB2 dongle to read temp from my phone under the car.

[kostas_wellknown]

That's a perfect video!!!! Nice car too !

[charlesberry]

That music is terrible. Great content though!!

[richardbielicky]

Hello, thank you for sharing the post, usefull You mentioned that you used 6, 5 litres of oil, but the transmission circuit is projected for 8, 5 litres (DCT+cooler+pipes). Did you changed all the oil or only the amount in DCT and the rest (1, 5 litre) in pipes and cooler you left there? Thanks

[Racedoc]

Great tutorial for not needed service. The new oil will look exactly the same within few hundred miles.

[jose-ujkz]

What’s the plastic black flappy thing next to the suction jet pump and transmission filter ? I can’t find the part number or anything and it’s broken due to running over a rock :/

[rserton]

How often do you recommend replacing DCT fluid?

[juanenrique]

Hi guys, i have a 135 2011 w/ the DCT transmission and lately i've been getting a transmission error code 0x5A53. Could replacing the fluid fix this code?

[karltower]

After fluid is up to temperature do you leave car running or shut off during hot fill portion of procedure?

[wissor]

Do you guys actually do repair work on people’s cars?

[zernen]

I noticed the blue marks on the bolts, did I miss the explanation?

[bigbill]

Thoughts on doing this on a 140k mile f80 with questionable shift behavior?

[jamie]

Sling the music please its annoying as hell

[mclubracer]

Personally l didn't notice the music. It was not that stupid rap stuff you hear on ALLLL the other videos. THAT is annoying af.