this is a new one for me.. i gotta go find it now! is it still functional?

updated list:

1) aux input in glove compartment.
1a) if you have ipod integration, the aux input is tucked away under the plastic cover.

2) aux input is accessed from cd menu (in my non-multimedia pkg).

3) hold alarm on/off pointed at small square on driver's-side door handle to open/close sunroof and windows.

4) power source in glove box is 12v switched (i remember there was some discussion about that).

5) if you have the automatic tranny, push the stick to the left and hold it there, it'll downshift to the gear lowest possible to allow you to be in the powerband to pass cars. And pushing the stick to the right side and hold it there will put you back into the normal automatic shifting mode.

6) Little arrow on the fuel gauge points to the side of the car that the fuel filler is on.

7) there is a way to reset your service indicators and other lighting options by pressing the OK and TALK button I believe.

8) badges in back leave no holes except for the star.

9) A slight tap of up or down on the turn signal tree allows the turn signal to flash 3-4 times for a lane change and then shuts off automatically. No need to full engage the turn signal and shut it off manually.

10) Steps to Reset the TCU. Resetting the TCU will reset transmission to factory shift points and the car will 'relearn' your driving style.
(1.) Turn the ignition key to the on (not start) position.
(2.) Press the gas pedal to the floor and hold for five seconds.
(3.) Turn the key to the "off" position (don't remove the key), then release the gas pedal.
(4.) Wait at least two minutes for TCU to reset.

11) brake rotors stay at peak efficiency from feathering initiated after a certain number of windshield wipes during rain.

12) headlamp cleaners activate every 10 windshield washes.

1. When the sun / Pano roof is left open on an extremely hot sunny day, the
car will automatically close it (tilt position) after a while ( when the car is
parked )

2. Again if the car is equipped with Sun/Pano roof as well as rain sensing
wipers, the car will again close (tilt position) the roof as soon as the sensors
detect rain ( when the car is parked )

Key in position 0 or out of ignition.

Service reset after oil change and Dyno mode
 

Service reset after oil change and Dyno mode

Only European models. Not in US or Canada.

How about the c-class PRO-SAFE system, which automatically closes open windows, sunroof, and move the seats, headrest + steering wheel to a more protective position - all done within milliseconds as soon as the car senses that an accident is imminent.
This is the 2nd stage of pro-safe. First stage is the passive pre-emptive measure, like ESP etc. The 3rd stage is post an accident, which includes automatice shut down of engine and cutting off fuel supply + turning on hazards lights + lowering windows slightly + unlocking all doors.

Given that stage 2 relies on power seats etc, it's probably not available in the US.

1) rollbackassist : if i am on steep hills, i notice a roll back assist engages. I think it might happen if i press down on the brakes a bit harder. Release and the car holds itself for a few seconds before rolling back. Works Great!

2) autosense wipers that actually work!

this thread reminds me of Conan O' Brien -- SECRETS.

On the cruise control stalk: If you push the stalk all the way up, it will increase the speed to the next 5mph increment (ie 52 goes to 55). If you push it down it will decrease the speed to the next 5mph increment (ie 58 goes to 55).

Yes its still functional...

Open your passenger door, and pull the plastic panel off...you will find this...

https://mbworld.org/forums/showpost....19&postcount=8

I have both. weird...maybe because I picked my car up in Europe and used the AUX and the iPod didn't get installed until the VPC in FL:confused:

It actually holds the car until you accelerate again - not just for a few seconds. I've had it on hold like this whilst waiting at a traffic lights for like 1 minute or more may be. Works great!

Is this another euro-only feature? I left my pano tilted and it rained and nothing happened (except my car got a little wet). I have never seen it close on a hot day neither.

Yes Euro-only feature. I read the UK online owner manual and US/Canada manuals and the former has that. Don't try it or your car get drenched in the rain.

Should be Pre-Safe. Pro-Safe is the overall term for MB safety philosophy that includes Perform Safe (active), Pre Safe, Passive Safe and Post Safe.

This is not somthing you can controll but the new W204 also has vents behind the rear wheels that exit out of the tail lights to keep them clean but more inportantly helps to give the car an overall drag coeffienecy of ONLY .29
one of the lowest for this type fo car.

If you have windows (i guess you all have =))/pano (not sure with if it also covers regular sunroof) and the windows are down when you step out of your car. Then you are able to close the windows/pano by holding the lock button. (also works with holding on the door handle if you have keyless go).
If you hold the open button it will open the windows and pano. Nice if you want to vent the car before you get in.

If your vents are going at full speed and you push the talk button it will adjust the vent speed to the lowest speed so your commands will be loud and clear =)

With the MM the stereos volume will raise if you enter an area with load noise. I discovered that this weekend driving through the Lincoln tunnel with the windows open and the stereo volume increased with the load road noise from the tunnel echo.

If you have the transmission in C, and you punch off the line hard, it uses 1st gear, not second.

Having read through my manual, MB's real secret seems to be: - which frigging oil should you use to top up if necessary!

cool, thanks. How did you pull the plastic panel off?

It is held in place by 2 stiff metal body clips on the edge closest to you. Gently pull the bottom edge and it will pop loose. Be careful because there are plastic tabs towards the back.

itcrashed, you rock! i found the aux jack and used a jack extension to run the cord through from underneth so i wouldnt have to drill holes. it works great, take a look.

thank you akasigfreak as well!

not sure if this is a secret, but I found this out later.

Leave your headlights in Auto mode & the parking lights & fogs will remain lit when you arm or disarm your car when it is dark.

so how does it sound? i havent actually used mine yet.