V8V Sportshift Clutch Learn Procdure
Discussion
blackice1 said:
I can only imagine about the A/C one is that as it cuts in when you start the car it makes a noise a bit like the click.
I imagine its got more to do with something like if the AC Comp is active there is more parasitic loss on the engine which the system will learn during clutch kiss point and disenagage. The clutch is 'taught' during reference conditions (with no electrical or additional parasitic loss / loads) and when these variables occur in the real world the software adapts to the condition by applying calibrated offsets.BamfordMike said:
I imagine its got more to do with something like if the AC Comp is active there is more parasitic loss on the engine which the system will learn during clutch kiss point and disenagage. The clutch is 'taught' during reference conditions (with no electrical or additional parasitic loss / loads) and when these variables occur in the real world the software adapts to the condition by applying calibrated offsets.
Mike that is a stunning answer. Can you now please pop over to the V12V MPG thread and do your bit AMDBSNick said:
Mike that is a stunning answer. Can you now please pop over to the V12V MPG thread and do your bit
I feel i have done all i can on that one Nick... 'Lance' should have done his part to save the planet.. a bit... and deliver more MPG at the same time as packing a bigger punch. But in the hands of the Cockernee i'm sure that improvement is one that will go totally unnoticed... rocketboots999 said:
I'm curious as to how the dealer measures wear on a clutch and then reports it as a data point. Is it done through the electronics somehow?
This can only be done on a sportshift gearbox using AMDS, I believe they can establish some sort of electronic count or actuations from the ASM (Auto Shift Manual) Control Module (I cannot remember the exact terminology) and this is recorded as a Clutch Wear IndexLunablack said:
Can't believe a modern car should need to go through this rigmarole, just so the clutch can last
Do any other cars need to do this??
Same as my numerous paddle shift smart cars, lots of buzzing and whirring as the screw-jack that operates the dry clutch plates to adjust both tolerances andDo any other cars need to do this??
temp sensor
Yes when cold.
Called the dealer back and was told that the click does not matter, hold the brake until the Neutral light comes on and the learn process is complete.
In a post somewhere the same was stated "when you first start the car while cold, your ECU docking station will be dimmed light and the "N" button will not be lit. When the clutch is learnt the docking station light will go brighter, and the LED for "N" will turn on"
Would love to know what is meant by docking station light?
Queen's english I am OK with US english I am OK with, Aston Martin english baffles me when it come to look for things in the workshop manual
Called the dealer back and was told that the click does not matter, hold the brake until the Neutral light comes on and the learn process is complete.
In a post somewhere the same was stated "when you first start the car while cold, your ECU docking station will be dimmed light and the "N" button will not be lit. When the clutch is learnt the docking station light will go brighter, and the LED for "N" will turn on"
Would love to know what is meant by docking station light?
Queen's english I am OK with US english I am OK with, Aston Martin english baffles me when it come to look for things in the workshop manual
OK got it but in my 2009 the docking station light dim's does not go brighter.
Start cold with A/C off (to avoid confusing the issue) with foot brake applied. After a few seconds the "N" light comes on and a second or two later the docking light goes DIM and the click is heard.
Start cold with A/C off (to avoid confusing the issue) with foot brake applied. After a few seconds the "N" light comes on and a second or two later the docking light goes DIM and the click is heard.
Edited by aregg on Thursday 2nd November 20:46
I was at works factory and was taken through the learn process. The ‘click’ myth has nothing to do with the learn process. Start engine when cold. Foot on brick and wait till idling settles (below 1000 about 800). Engine off. tech advised to do this about 5 times. She drove home very nicely after
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