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04-03-2012, 07:37 AM | #23 | |
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04-03-2012, 09:24 AM | #24 |
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Why is there always a 6MT troll??
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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04-04-2012, 06:45 PM | #25 |
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Took my car to the dealership today. As far as losing gears my even gears, the service rep just called me and told me that there was a bulletin posted about that problem some time ago, and there's a software update available for my car ('08 e92) that should fix this problem. Strange that I never experienced the problem before though, but hopefully this is the solution.
No word on the limp mode problem/overheat, but I'm very tempted to get the DCT cooler upgrade done by Ricky (wwjd15a) just to avoid any overheating issues altogether! |
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03-20-2013, 09:55 PM | #27 |
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03-25-2014, 06:10 AM | #28 |
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03-25-2014, 10:42 AM | #29 |
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I came across a great explanation on our DCT cooling:
Oil to Coolant Cooling The M DCT transmission oil cooling circuit consists of an oil to coolant heat exchanger, an oil to air heat exchanger, a transmission oil thermostat and the relevant cooler lines. The oil to coolant heat exchanger is part of the engine cooling system of the vehicle. Mounted on the transmission housing it allows the oil to flow directly from the M DCT into the oil to coolant heat exchanger. Engine coolant directly from the cylinder head is pumped to the oil to coolant heat exchanger by the auxiliary coolant pump and then circulated back to the engine cooling system. The M DCT electronics can switch on the auxiliary coolant pump as needed. The auxiliary coolant pump, which is normally used to enhance the efficiency of the heating system, is used here to warm up the M DCT transmission. This design shortens the warm up time and maintains the transmission oil in the desired operating temperature range. After the oil to coolant heat exchanger has brought the temperature of the transmission oil to above 95°C/203°F, an oil thermostat directs the transmission oil to the oil to air heat exchanger located at the front of the vehicle. |
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03-25-2014, 11:06 AM | #30 |
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03-25-2014, 12:01 PM | #31 |
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There is always something going on with the dct, ins't there ? Not surprising given the complexity, when you think you've read them all, a new thread pops up. It's been a reliable source of threads to read on the forum for me in slower days.
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03-25-2014, 12:12 PM | #32 | |
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03-29-2014, 11:45 AM | #33 |
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03-29-2014, 12:33 PM | #34 |
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The aftermarket coolers for a M-DCT will not be priced like an automatic transmission cooler or engine cooler. The M-DCT cooler needs to be able to handle much higher fluid pressures. From the technical manual:
"The normal operating pressure range is between 5 and 20 bar, although it can be increased up to 30 bar if necessary to maintain proper transmission operation." also: "The pressure required for the clutches is limited to 18 bar. The clutch is regulated by an integrated proportioning valve." That puts the fluid pressure through the cooler much higher than the typical add-on style automatic transmission coolers were designed to handle. Also engine oil coolers are not designed around those operating pressures. If the M-DCT cooler circuit is on the clutch flow path that is still 18 bar or about 261 psi. IF the cooler pops the transmission will be empty very fast. Remember the cost of the fluid and the car won't move without fluid in the transmission so add the cost of a tow. |
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03-31-2014, 02:02 PM | #35 |
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I´ve called motorsport24 today. The standard price is 1850 USD, they offered following discount
collective order 3 buyer - 1.795 USD 5 buyer - 1.655 USD Anybody interested? |
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03-31-2014, 02:06 PM | #36 |
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Hit up gintani.
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Current: 16 991 GT3RS , 91 964 C2, 17 Raptor | Past: 2015 991 GT3, 2015 i3,15 YMB F80 M3, 13 E92 M3 DCT, 08 E92 M3 6MT, 07 E60 M5, 02 E46 M3
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03-31-2014, 04:49 PM | #37 |
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i'm not understanding, many people seem to have no issues with the cooling at the track.
op even said he didn't have issues prior, just only the last two sessions. it has to be something else? |
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03-31-2014, 05:46 PM | #38 |
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Last edited by Maltman; 04-01-2014 at 03:32 AM.. |
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03-31-2014, 08:37 PM | #39 | |
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04-01-2014, 07:51 AM | #40 |
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SSP has one, I programmed this car the other day which had it:
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-----| Like us on Facebook | Instagram || Tuning Information | Remote Coding |----- ----Visit us at www.BPMSport.com - Emotion. Driven. | Toll Free: (888) 557-5133---- |
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04-01-2014, 12:38 PM | #41 |
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Current: 16 991 GT3RS , 91 964 C2, 17 Raptor | Past: 2015 991 GT3, 2015 i3,15 YMB F80 M3, 13 E92 M3 DCT, 08 E92 M3 6MT, 07 E60 M5, 02 E46 M3
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04-02-2014, 02:44 AM | #42 |
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01-03-2015, 01:11 AM | #43 |
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awesome~!
What kinds of fitting do you use for connecting OEM DCT pipe end with aftermarket cooler fitting? |
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