REDSRT

After about 10 months of ownership i just found out what that button on the right side of the rearview mirror is. LOL A FREAKIN digital compass. Dohh. Just push the little button, and boom, magicly the red compass light comes on. I never payed attention to that button, so ya, anybody like me that didnt know, now u know.

danielemccabe

now that's funny. didn't know you could turn it off and on. does it switch modes, or does it just turn it on and off? my car had the compass on all the time.

REDSRT

No, there are no modes, just ON/OFF...............nice and simple

MNL ICE

Oh ****...thanks dude...whats funny, my GF asked me last saturday how come her compass on her glk was gone and I told her maybe this right botton and the digital compass appeared and I forgot abt. this to try on my car

superlubricity

cyberorth

Huh. there is actually a line item on the dealer's bill charging you to teach you all that. Guess you should ask for your money back.

REDSRT

He probably went over that with me, but i was too EXCITED and busy stomping on the gas and not hearing what he was saying during all that backfire!!!!

patboyy

i nvr know such thing!

GBlansten

LOL, I discovered that a few months back with the same surprise.

Mort

Wonder if I'll retain that until my car is delivered in May?

ZephyrAMG

My biggest discovery a few weeks back is that button that raises a bulletproof rear screen shield...its a photon deflector...absolute money.

Shellbmb

My discovery was the green illuminated button in the trunk that allows you to open the trunk if you somehow get stuck in the trunk. Not sure how you get stuck in the trunk unless you are intentionally put back there. So might be handy if you are in trouble with the mob.

nrgy

Ok, I just looked all over for that button and can confirm that the 08s do not have it. Oh well, I guess I should be happy 08s got the folding mirrors.

Vegas_AMG

Funny. I've found a few things like this too. The holding down of the lock button closes the sun roof and windows if you do it right away, the CD pauses if you have an incoming phone call, and the folding rear seats were a few month after purchase discovery. I guess I (we) should RTFM instead of twisting the key and hitting the go pedal.

SebringSilver

I refuse to believe this.

-michael-

There is also a compass that you can turn on through the service menu (Eng Mode) on the screen.
https://mbworld.org/forums/c-class-w...w-cameras.html

superlubricity

The compass option is already enabled and selectable in the Navigation menu of my 2010.

propain

A cool one for me was figuring out what the black thing on the drivers side door handle was...

For all that dont know, Auto up and auto down all windows including the sunroof. Press and hold lock or unlock while point at the black thing...

-michael-

Ohh That is probably for MY2010
It was not turned on my 09
Another thing I found was a trunk opener button on the inside of the trunk lid. If you open your trunk and look on the back side of the lid (where the license plate is mounted but from the inside) you can find a green button that opens the trunk from the inside.
Once I left my keys in the trunk of my old BMW E46, it was a PITA to get them out through the ski bag.

mzporto

I don't have the compass. Euro-spec here.

Do you guys actually use the compass?