M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Automatic downshift issue

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Old Jul 31, 2018 | 02:20 PM
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Mercedes Benz ML350 4MATIC W164
Automatic downshift issue

Car info: Model year 2009 ML350 4MATIC
I stopped my ML while i was driving with manual mode. Before i shift to Park mode, i noticed that odometer displays 5th gear, i expected the transmission to downshift it automatically to 1st gear. Is this normal ? I didn't have this on my 2011 YF Hyundai Sonata.
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Old Aug 1, 2018 | 12:08 AM
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From: Melbourne Australia
2008 ML320 CDI with every option code including Offroad pack, 1978 450SEL
You were not driving in manual mode - all you did was limit the maximum gear the vehicle will change up to. If you had driven the car, it would have changed up to 5th gear and no further.

To engage manual gearbox setting, press the button to the right of the emergency flashers. But the gearbox will still override your gear selection as you slow down regardless.
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Old Aug 1, 2018 | 02:16 AM
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Mercedes Benz ML350 4MATIC W164
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Last edited by Elchins; Aug 1, 2018 at 02:21 AM.
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Old Aug 1, 2018 | 02:18 AM
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Mercedes Benz ML350 4MATIC W164
Originally Posted by Elchins
My ML hasn't been equipped with "Comfort,Sport, Manual" mode. There is no button for those mode.
Question is not having automatic downshift when i slow down or stop the car. When i drive the car the gear starts from previous stuck gear for example 5th gear.
Originally Posted by sclasspilot
You were not driving in manual mode - all you did was limit the maximum gear the vehicle will change up to. If you had driven the car, it would have changed up to 5th gear and no further.

To engage manual gearbox setting, press the button to the right of the emergency flashers. But the gearbox will still override your gear selection as you slow down regardless.
My ML hasn't been equipped with "Comfort,Sport, Manual" mode. There is no button for those mode.
Question is not having automatic downshift when i slow down or stop the car. When i drive the car the gear starts from previous stuck gear for example 5th gear.
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Old Aug 1, 2018 | 06:53 AM
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From: Brasília, DF, Brazil
ML350 2009 CDI
Originally Posted by Elchins
Car info: Model year 2009 ML350 4MATIC
I stopped my ML while i was driving with manual mode. Before i shift to Park mode, i noticed that odometer displays 5th gear, i expected the transmission to downshift it automatically to 1st gear. Is this normal ? I didn't have this on my 2011 YF Hyundai Sonata.
Is is normal. The odometer shows the Target Gear, not the Real Gear.

If you buy a Scanner, you can see both values in the transmission module.
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Old Aug 1, 2018 | 12:37 PM
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Mercedes Benz ML350 4MATIC W164
Originally Posted by mRaposo
Is is normal. The odometer shows the Target Gear, not the Real Gear.

If you buy a Scanner, you can see both values in the transmission module.
Hmm funny. Why driver should see target gear instead of showing real gear. But, when i start driving the car, it accelerates from previous gear. This means that, transmission does not downshift as the car reach to stop.
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Old Aug 1, 2018 | 02:36 PM
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From: Chicago suburds
2008 ML350
Maybe he needs to reset the tranny?
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Old Aug 1, 2018 | 03:10 PM
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Mercedes Benz ML350 4MATIC W164
Originally Posted by Jrosa55
Maybe he needs to reset the tranny?
Do you have an offical way of doing this for just W164 ?
Below way has already been done.

Procedure Reset Transmission Adaptive Learning DIY
  1. Turn the key to position 2. You should see all the dash lights come on. ...
  2. Press the gas pedal all the way. ...
  3. Wait. ...
  4. Turn key to OFF, position 0. ...
  5. Release the gas pedal.
  6. Wait 2 minutes. ...
  7. Start the car and drive.
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