Newbie need help on my 09 c63
Normally MB will not play around with the ECU unless you ask them or they had to update the transmission software. In this case they might have reset your ECU. Ask them and you will know.
Did the seller inform you about a tune? Unless you know or you have read the ECU it is difficult to say if there is a tune on a car.
If that's the case, just drive it hard for a few days and it will relearn your driving style. Those shift adaptations can make a difference in the perception of power.
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at least in our TCU
and there are updates (TSB's, campaigns, whatever you want to call them) that perform an adaptation
eg, there were complaints about the 2-3 shift so if the customer complains about it the TSB says to run the adaptation routine for only that gear change
basically hook up the tool and erase/reset the old (only for the 2-3 shift)
drive the car at steady rpm, light load and shift 4 times 2-3 (some say 8 times)
park and let idle for > 10 minutes
there are settings for each upshift. each downshift and park to 1st and park to reverse iirc
This is a great reference for people without access to the MB DAS system documentation:
http://www1.snapon.com/Files/Diagnos...AZ0025B41C.pdf
ETC (TCU) Reset/Adaptation: 722.6xx
MBDoc
Moderator
Clearing the trans adaptation requires a "HIGH END$$" scanner like AST, Baum, Autologic, Car-soft, or the dealer SDS.
None of the listed methods will clear the codes OR adaptations. (the listed methods were - scan tool clear, batt disconnect, tps reset (ignition key/accel pedal reset), and the HVAC head unit code clear methods)
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Last edited by Ingenieur; May 14, 2014 at 02:33 PM.
ETC (TCU) Reset/Adaptation: 722.6xx
MBDoc
Moderator
Clearing the trans adaptation requires a "HIGH END$$" scanner like AST, Baum, Autologic, Car-soft, or the dealer SDS.
None of the listed methods will clear the codes OR adaptations. (the listed methods were - scan tool clear, batt disconnect, tps reset (ignition key/accel pedal reset), and the HVAC head unit code clear methods)
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
the short term stuff is reset everytime you restart the car and will adapt with style during a given trip based on throttle use, shift mode, l,oad, etc.
https://mbworld.org/forums/w211-amg/...set-works.html
and
https://mbworld.org/forums/cl55-amg-...-response.html
all represent mass hysteria?
Note that some of these include recommendations from MB techs to use the battery disconnect method rather than the accelerator pedal method, for instance.
This guys
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)





