my2001s2000

Took my 07 E350 CPO to the dealer today after purchasing it 3 weeks ago. I noticed a minor hesitation, and a minor 2-1 downshift bump when crawling. Service manager and I took it for a ride (he driving, and I riding) and he said that there is an adaptive memory that learns how you drive. The previous owner put 32,000 miles on it, so he said since I drive more conservatively, he'll clear out the adaptive memory, and it will learn how I drive quicker. As a second course of action he said he'll check the transmission fluid.

Anyone ever hear of this adaptive memory?

shardul

iTrader: (1)

yes the car has it. to reset it do the following

1. key in position 2
2. completely press gas pedal to the floor for 5 sec
3. turn key to off position and leave key in there for two mins.

the driving style in the TCU will be cleared.

Polar Bear

This can also be cleared in SDS. The transmission TCU learns a few things about the shifting patterns of the transmission - how long it takes for the transmission to shift - if the engine revs between changes, etc., and makes changes accordingly. It also attempts to predict your driving style and adjusts the shift points accordingly.

When cleared in SDS, the computer needs to relearn all of the parameters and you will notice a difference. Typically the TCU just needs a little extra time to adjust and it will work out on its own without the need for manually clearing it.

SPNJHockey

P Bear,
So how does that affect the hard dnshift from 2nd to 1st?

Polar Bear

The TCU learns all shifts. The downshifts are considered independent shifts just like the upshifts are, and the TCU attempts to determine how fast to perform operations depending on the output of specific sensors.

https://www.mbwholesaleparts.com/Sta...8StarTuned.pdf

SPNJHockey

Thank you for that info.

m3nz212

will there be a sound, if done in the correct way??
because i don it today, nothing happen it's the same as b4..
i did it two way,
the first, turn the key to "run", floor the gas pedal for 5 sec to 10 sec, turn off the car, leave key in for 2-3 mins.
the second, turn the ke to "run", floor the gas pedel for 5 - 10 sec. turn off the car ( keep flooring the gas )leave the key in for 2-3 mins( still had the gas floored). nothing happen.

AsianML

No. No sound or chime will indicate if it's completed correctly or not.

AMGTestDriverNJ

that is entirely uncorrect I have to say. You do indeed hear "something" that indicates that this process has been completed. You will hear a click coming from the keyhole it will sometimes shake a keychain attached to the key that is in the ignition if you watch carefully which also produces a sound. Obviously this depends if you have a keychain on your key. In any event, if you listen closely you will hear it after a bit a distinct click from the ignition. I've done this on tons of Mercedes it works on all of them.

raymond g-

you may have accomplished this with tons of MBs and it may have worked on
all of them, but the reset isn't applicable for all MBs.