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      07-31-2014, 12:52 AM   #23
MattUK
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Originally Posted by michel lane View Post
I found out the the service packs in the UK comes in two levels, service pack and service pack plus. Service pack is the general oil change and filters , plugs .Service pack plus cover clutches, pads, disks etc ...

It booked into the dealership to get it checked out . I unfortunately had the standard service pack ....

During a small state of insanity , I went and test drove a vantage S V8 auto today .. The gear change is so violent its like the older M5 , the throttle response is rubbish . When you put you foot to the floor in auto mode , there is a delay of 2 seconds before it decides to kill the power and choose the gears for you !.

The cabin is really outdated and ride quality is pretty poor . The noise is great , but that's what you get for poor sound dampening . This was a 2014 model , I was disappointed on the refinements and sat nav in the cabin . But the biggest difference was the gear change , what a load of crap, just image changing on a a sweeping bend at 100mph , you end up spinning the car , or exiting a roundabout catching the apex ...

Then I realised why it felt terrible , I was driving the state the art BMW M6 , even the dealer said " Why" , I guess I was bored on a sunny day .

Car is going in on Tuesday next week, I am getting my reader back on the weekend , so will be able to tell you if the reader works with the BMW .
If you are within the 3 year warranty then it should be covered under warranty rather than a service pack
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      07-31-2014, 01:27 AM   #24
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The main advantage of the service plus pack is that it covers the brake disks and pads, as I have the CCBs I thought it wasn't worth it, the brakes will last longer than the service pack covers anyway!
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      07-31-2014, 02:48 AM   #25
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Quote:
Originally Posted by M6-Coupe View Post
I know what you are talking about. Month ago I test drove 2014 Jag F-Type(brand new) and 2011 911TT back to back. When I got back to my car I felt so happy!!! M-DCT is so fast compare to PDK or ZF8... Our cars in sport+ engine and S3 are really fast
Me too, I test drove the AM, found it a real Retrograde step backwards, they really are crap.
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      07-31-2014, 08:03 AM   #26
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Quote:
Originally Posted by JOHNBMWM5
Quote:
Originally Posted by M6-Coupe View Post
I know what you are talking about. Month ago I test drove 2014 Jag F-Type(brand new) and 2011 911TT back to back. When I got back to my car I felt so happy!!! M-DCT is so fast compare to PDK or ZF8... Our cars in sport+ engine and S3 are really fast
Me too, I test drove the AM, found it a real Retrograde step backwards, they really are crap.
The baby Aston is pretty long in the tooth. I tested it back in '08 when it was practically new tech and it still felt dated and tame compared to the '08 M6 I ended up buying. Same goes for the Maserati GranTurismo. I can only imagine what it would be like now, those cars being near the end of their life cycle, to go from my F13 M6 to driving those.
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      08-01-2014, 12:11 AM   #27
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Originally Posted by M6-Coupe
I don't know if this help, since still I have no idea about what you said "drive like a Kangaroo"
I got my car last September. After brake-in period I felt unusual behavior of car. everyday in the morning (let's say cold engine) when I tried to back up, I used to feel shuddering from the rear right. After couple minutes it was running fine with no issue. I showed my car to dealer several times and every time heard "it's normal"... since I knew the huge power and torque can have this behavior (and because this is my first M car)I accepted, but because I used to drive manual cars for over 20 years, it seemed like clutch or flywheel problem. The shuddering got worse and worse till I felt it even when the engine was warm. Finally last time I asked the dealer to have my car checked by BMW NA rep. The rep came in Irvine and test drove my car. I was told by SA that the clutch is "pre-matured" because of aggressive driving!!! (I don't know whether or not M car is designed for aggressive driving but if not why I'm driving M6 instead of 328???). Long story short, They ordered the clutch kit including Flywheel and I'm waiting for part to come in. probably in two weeks they will replace the clutch kit. The funny thing is I neither tracked the car nor used the LC more than 10 times. For sure this is manufacturing defect...
DCT's clutch is not supposed to be worn or damaged very fast like manual cars
BTW, my car is bone stock and I have 10K mile on the clock!
I have the same shudder when going into reverse. On the initial push of the gas, I feel the back end shudder. Almost as if the driveshaft is getting brought up to speed. It concerns me and I am thinking of taking the car into the dealer for it.

I have a 14 m6 gc with 400 miles on it.

Any thoughts?
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      08-01-2014, 12:38 AM   #28
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Quote:
Originally Posted by ChrisM6GC View Post
I have the same shudder when going into reverse. On the initial push of the gas, I feel the back end shudder. Almost as if the driveshaft is getting brought up to speed. It concerns me and I am thinking of taking the car into the dealer for it.

I have a 14 m6 gc with 400 miles on it.

Any thoughts?
In case of my car I had them checked the rear rotors and pads first. Then differential and universal joint. They also checked the suspension. All good so now it's clutch time so, you can do the same and let them figure it out!
Maybe they need you to drive your car for another 800 mile by the time they perform the Brake-in service!
Update: I texted my SA today to check if the part is arrived. He texted me back that they have got clutch kit but they are waiting for Flywheel! with that said, now I'm sure the Flywheel was the defective part caused the shuddering and obviously worn the clutch.
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      08-05-2014, 11:25 PM   #29
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Quote:
Originally Posted by M6-Coupe
Quote:
Originally Posted by ChrisM6GC View Post
I have the same shudder when going into reverse. On the initial push of the gas, I feel the back end shudder. Almost as if the driveshaft is getting brought up to speed. It concerns me and I am thinking of taking the car into the dealer for it.

I have a 14 m6 gc with 400 miles on it.

Any thoughts?
In case of my car I had them checked the rear rotors and pads first. Then differential and universal joint. They also checked the suspension. All good so now it's clutch time so, you can do the same and let them figure it out!
Maybe they need you to drive your car for another 800 mile by the time they perform the Brake-in service!
Update: I texted my SA today to check if the part is arrived. He texted me back that they have got clutch kit but they are waiting for Flywheel! with that said, now I'm sure the Flywheel was the defective part caused the shuddering and obviously worn the clutch.
My goodness, I didn't realize there could be that much that could potentially be wrong. Thanks very much for your feedback. My gut tells me it's definitely my driveshaft / flywheel. It's a very distinct shutter (1-2 secs) when first pressing the gas while in reverses. It's almost like there's some slack in the drivetrain that is getting "rung out" before finally hooking up and moving the car.

Has anyone else experienced this?
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      08-06-2014, 12:13 AM   #30
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Quote:
Originally Posted by ChrisM6GC View Post
My goodness, I didn't realize there could be that much that could potentially be wrong. Thanks very much for your feedback. My gut tells me it's definitely my driveshaft / flywheel. It's a very distinct shutter (1-2 secs) when first pressing the gas while in reverses. It's almost like there's some slack in the drivetrain that is getting "rung out" before finally hooking up and moving the car.

Has anyone else experienced this?
Exactly the same here!
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      08-06-2014, 01:46 AM   #31
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After a technician went out in it , he says it's not the clutch ,and it's wet lined , what ever that means . But the life of them should be around 70k .

When it goes up to temp around 90-100 degrees on the oil , I can put the car in to any gear running around 2k rpm , and keep it there , the car feels like it dis-engages the gears and the revs slowly builds up to around 4-5k .

When you just touch the throttle , the car suddenly engages, you get this jolt and the revs drop back down . It's very noticeable when driving around town at low speeds and rpm now . Sometimes it feels like it dis-engages while trying to select another gear.

When you are doing some spirited driving , you don't notice it at all . What I have noticed is that the car pulls really hard in all gears if the oil temps are around 70-80 degrees , it seems not to pull as hard when it hits 100 degrees ? .

Do these boes have some sort of torque limitations like the mercedes sl amg ? , I know when I upgraded the power on my sl600 , the gearbox ecu had to be reprogrammed to allow the additional torque , else when it hits it the parameter it limits the power .

I will be leaving the car with the dealer ship for 2 weeks , for them to resolve the problem . Hopefully when I get back from my holiday , it should be resolved . Going to plug the code reader in the car tonight and see if it works . I will let you know how it goes.
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      08-07-2014, 02:32 PM   #32
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Can someone with a BMS tune , please test what I have discribed in this thread . Cruise around 2k rpm for around 5 minutes and see if it climbs . Thanks
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      08-07-2014, 06:44 PM   #33
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Quote:
Originally Posted by michel lane
Can someone with a BMS tune , please test what I have discribed in this thread . Cruise around 2k rpm for around 5 minutes and see if it climbs . Thanks
Nope my DCT works perfectly with DP's ,intake , and BMS , and I'm hitting 130 mph Vbox 1/4 mile in the 90 degree heat !
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      08-07-2014, 07:27 PM   #34
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Quote:
Originally Posted by michel lane View Post
Can someone with a BMS tune , please test what I have discribed in this thread . Cruise around 2k rpm for around 5 minutes and see if it climbs . Thanks
I will test this on the way to the office tomorrow and let you know what I find out. I don't recall anything like this happening though but I will test anyway and let you know.

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      08-08-2014, 01:10 AM   #35
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Thanks Brian , if you can drive it in manual mode , 3,4 gear at around 1.5 /2k please for around 3-5 minutes . Gmd2003 , thanks for trying .
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      08-17-2014, 12:43 PM   #36
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Update:
The Clutch kit and Flywheel were replaced.
I'm not gonna push it hard for about 1000 miles to let it get broken-in properly, but looks like the issue is resolved. Maybe it's too soon to judge, but as far as I feel, throttle looks more responsive. Let's see what's going on!

Here are the part numbers for people are interested to know

Twin mass Flywheel : 21-21-2-283-824
Dual clutch:28-40-7-842-841
Clutch cover:28-40-7-842-842
Snap ring:28-40-7-842-843
O-ring:28-40-7-842-844
Shaft seal: 28-40-7-842-845
Isa screw:11-22-7-805-708
BMW DCTF-1:83-22-0-440-214
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      08-22-2014, 11:06 PM   #37
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Quote:
Originally Posted by M6-Coupe
Update:
The Clutch kit and Flywheel were replaced.
I'm not gonna push it hard for about 1000 miles to let it get broken-in properly, but looks like the issue is resolved. Maybe it's too soon to judge, but as far as I feel, throttle looks more responsive. Let's see what's going on!

Here are the part numbers for people are interested to know

Twin mass Flywheel : 21-21-2-283-824
Dual clutch:28-40-7-842-841
Clutch cover:28-40-7-842-842
Snap ring:28-40-7-842-843
O-ring:28-40-7-842-844
Shaft seal: 28-40-7-842-845
Isa screw:11-22-7-805-708
BMW DCTF-1:83-22-0-440-214
Good to hear! Thanks for keeping us posted.


Btw: did you ever have a knock sound when pressing the gas in reverse. Just a single knock?
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      08-23-2014, 12:13 AM   #38
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Quote:
Originally Posted by ChrisM6GC View Post
Good to hear! Thanks for keeping us posted.


Btw: did you ever have a knock sound when pressing the gas in reverse. Just a single knock?
I'm not sure what you mean with "knock sound" but I didn't hear any strange sound!
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      08-26-2014, 11:52 PM   #39
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Some updates since my return from my holiday . I had left the car with bmw for 2 weeks and they have performed various software updates to the gearbox, according to them, they cannot develop the fault with the new updates .

So figures crossed it should be resolved .
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      04-11-2016, 11:45 AM   #40
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Reviving thread to ask a question about my DCT:

When in 1st gear and reverse I take foot off of brake, but the car doesn't move until I give it a little gas. In reverse there is a bit of chatter (very little) and in 1st gear the clutch slips and doesn't grab fully until I reach around 2k rpm.

Should this be a concern or is it normal as my SA has stated?
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