DCT Servicing

Quelqu'un a-t-il eu sa transmission DCT? Il faisait partie du service de 1200 miles, mais a été interrompu. Je sais que Mike Miller (Roundel Tech Talk) recommande de changer le fluide à 1200 et tous les 30K par la suite. Le coût chez le concessionnaire est assez raide. Quelqu'un l'a fait et vous aimeriez partager le coût et l'expérience? Merci.

C'est absolument faux. La DCT n'a jamais été entretenue à 1200 miles, seulement le fluide de transmission manuelle sur les voitures 6MT. BMW affirme que le liquide DCT est un remplissage à vie et n’a jamais besoin d’être changé.

J'ai entendu dire que c'est un fluide coûteux et qu'il faut des outils de concession pour le changer correctement, car vous devez dire à la DCT d'allumer la pompe pour vider complètement le liquide.

urBan_dK wrote

This is absolutely false. The DCT was never serviced at 1200 miles, only the manual transmission fluid on 6MT cars. BMW says the DCT fluid is a lifetime fill and never needs to be changed.

I've heard it is expensive fluid and requires dealership tools to change the fluid properly since you need to tell the DCT to turn on the pump to drain the fluid completely.

Then I was misinformed about it formerly being covered. Anyway, did anyone have it done and want to share? I'm curious. It is very expensive to have it done at the dealer. I'm skeptical about any lifetime fluid but the cost is pretty high so there is definitely a cost/reward tradeoff. I plan on keeping the car for a long time so I tend towards much more maintenance than what is recommended. The last of the NA M3s and all that. Car is definitely awesome.

This should be informative

http://www.m3post.com/forums/showthread.php?t=746269

urBan_dK wrote

This should be informative

http://www.m3post.com/forums/showthread.php?t=746269

It is informative but I would be pretty uncomfortable doing it myself. I can see it is a bit of work to get the fluid level correct. I'm afraid I'd screw it up. Also, I noticed there is no mention of any filter cleaning. Isn't there some sort of screen/filter in the pan that would typically be cleaned out?
Anyway, thanks for the pointer.

If you want to go overboard and change the fluid I would at least wait until 50k miles.

Transfer wrote

If you want to go overboard and change the fluid I would at least wait until 50k miles.

Honestly I do not know if it should be done or not. Like I mentioned, it is expensive.

This is right out of Mike Miller's Lifetime Maintenance Schedule.

"M Double Clutch Gearbox: every 30,000 miles if you can get the oil
BMW is trying “lifetime fill” with the optional M Double Clutch Gearbox on the E90-family M3, and this gearbox requires a special lubricant: BMW DCTF-1 Pentosin. As per always, I recommend changing it at 1,200 miles and every 30,000."

How do you like your X1? I think BMW did a very nice job on that model. Right size and shape.

X1 is great if that's the size and style you're looking for. It's my wife's daily, she loves it, and I enjoy driving it when I do on occasion. Seeing our less than stellar gas mileage though, I would have gone with the 35i. The 28i is a more crisp drive and it's quick but its no 6cyl turbo.

Transfer wrote

X1 is great if that's the size and style you're looking for. It's my wife's daily, she loves it, and I enjoy driving it when I do on occasion. Seeing our less than stellar gas mileage though, I would have gone with the 35i. The 28i is a more crisp drive and it's quick but its no 6cyl turbo.

Yeah. My wife opt'd for a new Honda CRV after trying out an X3 (no X1's at the time). She figured the X3 was not worth the $20K premium. But the CRV's gas mileage has been very disappointing. I think they are asking too much out of the 4 banger VTEC engine. It is a very nice vehicle for $30K but the power is not BMW power and the gas mileage sucks.

JPatrick wrote

It is informative but I would be pretty uncomfortable doing it myself. I can see it is a bit of work to get the fluid level correct. I'm afraid I'd screw it up. Also, I noticed there is no mention of any filter cleaning. Isn't there some sort of screen/filter in the pan that would typically be cleaned out?
Anyway, thanks for the pointer.

Per another thread, DCT has two filters.