dan.fisher

2dr 2015 wrangled. I've had it less then a month and over the last week or so it has been grinding into reverse.
I will be at a complete stop, clutch fully down, Foot on the brake or ebrake still up and when I go into reverse, It will grind heavy and I'll stop and keep it in neutral. Second guess myself. Make sure the clutch is fully in and try again without issue.
I've done this after starting up and just going immediately and after sitting for a few minutes running while I set the address in gps or answered a call.
Felt like the time my dad taught me to drive manual in a derby car. Had me purposely try and push it into reverse while moving to feel what wrong was

dan.fisher

Anyone know what this might be? Before I call the dealership and waste a couple hours in there Service lounge.

AlexjeepVb

Put it in first gear first before you put it into reveres and it will never grind. Reverse is not synchronized and will def grind from time to time still if this is not done. I had the same thoughts on the 13.

Mark Doiron

It's the nature of these transmissions to grind, and especially going in to second when the transmission is cold, and into reverse pretty much all of the time. I just put a brand, spanking new one in my Jeep and it still grinds going into reverse most of the time. Been driving standards for fifty years and the transmission for this is absolutely the most disappointing bit of automotive engineering that I've ever come across. I cannot believe that Mercedes-Benz puts their name on the crate these things come in. They should hang their collective heads in shame!

Ryan0260

X2. I always do this, and my '15 has never grinded in any gear.

GTA-Dan

Thanks everyone. I'll try the shift to first, idea before bringing it into the dealership. I usually park it in neutral with the ebrake. (Bad?)
She never sits for longer then a day.

stagedtrip

Of the 7 or 8 manual transmission rigs I've owned including this one, I've always done the 1st or 2nd before reverse thing, otherwise they all were either hard to get in or did grind. Like was said its not synch

Ryan0260

I would leave it in first when you park it. I never trust the e-brake to hold it.

Whiskey Bravo

Same here, reverse on my 2011 frequently grinds unless i go into another gear first. Kinda just got used to it

Freewill

This ^^^^

Always. With any stick shift unless some transmissions have started putting synchro rings on reverse.