kfriceman

Just discovered a hidden/unknown function my ML430 performs. While traveling with cruise control engaged I began a descent down a long steep grade, as I began to pick up speed the ML downshifted once then twice (from Drive to gear 3) and then applied the brakes to bring the ML back to the speed I set with the cruise control.
I know the ML has Hill Descent Control but I did not know it was available at highway speeds. Has anyone else noticed this feature?

-Kevin

AndrewAZ

I didnt think the ML had hill decent. But for the cruise control almost all cars do that to slow you down. I don't actually thing the brake is being applied just a downshift and no gas to slow you down.

mihir_d

I travel over mountains every weekend alternating between the 3 cars.

Neither does the 95 Maxima nor the 06 Tribeca upshifts to control speed during decent. Only my ML320 does that....

I can tell you one thing though...the Subaru Tribeca beats the ML320 in handling rough weather and snow driving for sure...superior AWD system..ah well, its a Subaru after all..

AsianML

Isn't Hill Descent Control part of the Low-Range?

I know that on the W164 MLs, instead of reducing cruise control speed by drag, and letting off the gas, it actually brakes.

PaulX608

My '01 ML430 is the first vehicle I've had that does this, and I definitely like it. I only wish my '93 400E did it.