Recommended ATF list for All MB Vehicles with 722.6 Transmission
5 speed AT fluid is 236.10 from factory. Sheet 236.10 ATF is probably what you have if your transmission was never serviced.
236.12 was designed for and came with the new 7 speed transmission (W164). It is approved for use in 5 speed.
MB changed recommendation for 7 speed to 236.14 in August 2008. 5 speed can use this fluid as well.
236.10, 236.12 and 236.14 are all accepted fluid for 722.6 (5 speed automatic). If you will do a full flush, use anyone you like. If you will do a half flush (drop the pan only), you may want to stick with 236.10.
Some earlier model year fuel sensors surprised owners with premature failures. Attached document shows a failed sensor (from 2002 ML320 at 55k miles) and replacement unit. Replacement unit shows updated design and new part number.
Fuel sensor is part of a fuel pump. It is sold and replaced as a single fuel pump/sensor unit.
Fuel filter, fuel lines and fuel pump were upgraded as of MY2002.
The old fuel filters are no longer available from MB dealer.
If your vehicle chassis number (last 6 digits of VIN) falls in to this group:
163.154 up to 266446
163.172 up to 265965
163.174 up to 266484
and need to replace the fuel filter (recommended maintenance by MB every 60k miles), a one-time retrofit procedure is necessary by installing supplemental fuel lines for the new fuel filter. For a proper upgrade, all the fuel lines together with the new filter should be replaced however it does not require a new pump.
Brake light switch is connected to the brake pedal. Driver side foot well top cover needs to be removed to access it.
This simple switch not only actuates the stop lamp, but it also passes a signal to different electronic components such as BAS, ESP, ETS, ASR, CC, IFI, DFI, CDI, ME-SFI etc. It is common to fail and no longer present in vehicles with chassis number 371935 and above.
(If you just bought an ML, you can ask 722.6 "adaptive" transmission to learn your driving style.
How to Reset 722.6x Transmission
1) Close the door. Turn the ignition key to position 2
2) Press the accelerator pedal all the way to the floor, and hold there for 5 seconds, then release pedal.
3) Turn the key to OFF. Do not remove the key!
4) Wait FOR AT LEAST 2 MINUTES. Do not open the doors.
5) Start the car, and use the driving style you would like the computer to remember.
It takes several cycles to re-train the transmission to your driving style. After re-training, transmission will continue to adapt to the driving conditions.).
Does this process work on older model car? or with the new ECT?
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