Transmission Malfunction

[irishbimmer]

save the empty chip bags for wrist curls

[Andrey]

I am glad you have her back again. Man.. i have had the same problem a few days ago. I was literally a 1000 miles from home when it happened. I would downshift and it just wouldn't go into the gear. The current gear would also disappear from the HUD (as if it wasn't in any gear). But a few seconds later it would go into gear and take off like normal.

Had to park the car on an exit of the highway a minute later as it started stuttering and total loss of power, no gear change possible anymore. Bad smell too. Had to be towed to some dealer far away from my home (happened on the German autobahn though so BMW dealers with the best service were just around the corner) but now it's just sitting there waiting for transport home... Had to drive home in a Ford Kuga. Haha. That one wasn't even that bad to drive. But damn i hope my car will be transported soon and then repaired. I miss it now with these sunny days.

The only good thing about this is that I have full warranty till June this year. Without this trip I probably would have had the same problem a few months later but then the costs were on me.

[Andrey]

Update: It was the clutch... $3000 fix and we're rolling again. Was afraid it would be this because it doesn't fall under warranty. Will call BMW for some leniency though because of the low mileage. Will let you know if they are willing to chip in.

[built240]

^^^ It can't hurt to threaten a lawsuit. Even if your not serious. Many times it costs BMW more to deal with the lawsuit then to actually fix the problem.

[STS-V]

Originally Posted by B767capt

Here is what I wrote on another thread. This is for the M5. I assume the M6 is the same.


Very easy. Remove the micro filter on passenger side in the engine compartment. Now remove the bottom tray that the micro filter sat in. The L and R trays overlap in the middle and you have 1 plastic nut there to rotate 90 degrees. That one nut is under a plastic cover you must slide off. I think there are (4) 13mm plastic nut heads that rotate 90 degrees to get the tray out. Just like the one on the micro filter cover. One metal screw with a torx head in the front. Now you will see a relay box that takes a #5 allen wrench. Remove the 5 screws and near the firewall you will see a white plastic tab that you must slide to the unlocked position. Pull the cover off and you will now see the realys. The black one closest to the firewall is the smg hyd relay. There is a plastic ridge on top of the relay. Grab that with plyers and pull straight up. PAY ATTENTION to the orientation of the metal prongs on the relay when you pull it out. This way you know which way to align the new one when you push it in. You can't get down there to see it if you don't do this. Towards the fender is a salmon colored relay. That's the smg oil pump relay. That's it. Put everything back in reverse order.


Also I wrote:

Yes there are 2 relays in the box you should change out. The smg hyd pump is 61366901469 and Tischers price is 10.94. Of course this one gets a lot of hard use. The other one is the smg transmission oil pump which moves transmission oil through the cooler. That one is salmon color and it's part number is 12631742690 for 6.94. Since I'm in the relay box anyway, I change both when I do spark plugs. I always buy 2 each so I have a spare in the garage. How many times have we read where someone is left walking and their car is flatbeded to the dealer just for the burned out relay. I think they should be changed often, they are cheap.

Did we verify these were the actual part#s for our M6? Anything else we should change while we're doing SMG maintenance?

[STS-V]

Also, how hard is it to flush the trans? Is this something I can do in the garage.