Zach8131

I have a 2005 Mercedes E320. I believe I have keyless entry and also that my chrome smart key remembers my seat.

I have *key dependent* turned off, but for the life of me I cannot figure out how to make the car unlock without me having to press the button. It is a luxury I would really love to have. I see the sensor on the door handle, but it doesn't seem to work.

Also, I was told that my smart key would remember my seat if anyone were to ever change it, but so far I haven't been able to make it revert back to my seat when I get into the car. I have the *steering and seat* convenience option set if that makes a difference.

I sound like a noob, but it's my first Mercedes and my first car in general.

Thanks!

Mike_W

Zach,
On my 2008, the sensor button on the outside of the handle locks the doors, while the little lever on the inside of the handle unlocks the doors. You may want to replace the batteries in the key - I have noticed that when the batteries start to go - some things stop working before others.
My car does not adjust the seats for each key differently (as far as I know) - my old e39 did do that - but if this one does it, I haven't figured out how to make that work. The owner’s manual is 456 pages and I have not yet read every page.
Mike

Zach8131

I just replaced the batteries, and everything works speedy again, except the keyless entry.

jbec.keane

Are you sure you have keyless entry? The sensor on the door handle is on all E-Class cars. If you hold your key close to the sensor and press and hold the lock button all of the windows and the sunroof will close. if you press and hold the unlock button, the windows and sunroof will open. This is not related to keyless entry.

JK

t-bone

If he can start the car by pushing a button then he has KEYLESS-GO. KEYLESS-GO allows you to open the door without touching your key as long as the key is within range of the car. It will also allow you to start the car without putting the key into the ignition.

This is different from keyless entry, which is a feature that basically all Mercedes-Benz's have.

jbec.keane

You are, of course, correct.

JK

Zach8131

I do not have Keyless Go with the push button start. However I do believe that I have keyless entry, as I see most Mercedes newer than 1990 have.

That feature of the lock & unlock for the windows is interesting. I am going to try and see if that works today :]

Mike_W

Zach,
I just sent you a PM.
Mike

jcat

If you're describing the chrome key, you do not have a true 'smart key'.

keyless entry is not the same as perimeter entry. Your chrome key DOES NOT emit a signal to the car that allows you to press a button/lever on the door handle to unlock the car. You still need to push the unlock button on the remote like any other car. If you had Keyless-GO, the smart key would look like a credit card and would do this.

As for the seat, I've never heard of it storing it on the key. That's why there are multiple seat memory buttons near the adjusters. If you have easy entry/exit turned on, the seat will drop back and the steering wheel will raise up when you pull the key out, and will return when you reinsert it.

Barry45RPM

The IR lens on the door handle is to roll down the windows when you press & hold the unlock button on the key near the door handle.

Auto unlock by touch is only installed if you have black push buttons on each of the exterior door handles. They are to relock the doors. The unlock buttons are behind the whole door handle pull. I believe it is [part of the keyless go option. (Do you have a start button on top of your tranny shift knob?)

The memory seat will go back to your memorized position only if someone was last driving using the other key. The car assumes that if you last drove the car with your key, and moved the seat from its memorized key position, then thats where you wanted it, and it will not go back to the memorized key position, unless the othe key has been used in the interim.

The logic is so flawed and unintuitive and unlike the American seat memory repositioning system that in order to fix the confusion, Mercedes first removed the "Make key Dependent" function for a couple of years, then removed the seat moving memory feature altogether. Again... the Exit feature was improperly thought out and executed, but MB engineers in Germany don't like to be told they have made a mistake. They dismiss you as uninformed, and laugh at your lack of logic and inability to comprehend their superior engineering.

Also... since you can not memorize an exit position for the seat, the car has a pre-set exit position which is very often not as far back as many people drive in, so if the seat is already further back than MBs programmed in exit position, it will not move in that case either since it is already far enough back for you to exit the car.

Remember if you approach the car with both keys in proximity, the operation will be unpredictable as far as which key will be "in use".

Mike_W

jcat,
My key (2008), with Keyless go, etc., looks like this:

jcat

Perhaps I'm wrong, but as far as I was aware, keyless go was only operational with the slim, card-type key and not the one you insert into the dash.

Mike_W

jcat,
I had never heard of the card version before, but I liked the idea. I did a little research and found that MB had used them in the past - (the picture below is from a 2003 CL owner’s manual). The 2012 CL owner’s manual shows a key like mine.
I can understand why they went to the fob vs the card, as the fob has the backup mechanical door key built in and the fob will fit in the dash slot to start the car, both very useful if fob battery dies, but the card seems like a cool idea.
Mike

jcat

if the battery dies the fob won't work either, it's infrared.

Pekkle

I wish I can have a Keyless Go Card on a 2007 Keyless E class. It will save me some bulk in the pocket and just leave the card in the wallet.

WEBSRFR

I thought a prior generation S class had this and they discontinued it... Might have something to do with battery life. When I bought by car I thought Key-less go was a gimmick but it is one of the best features I love about my car. It's so nice to have the engine come to life as I have both my hands busy with the seat-belt when I'm in a hurry...

t-bone

The card was around only in the early cars with KEYLESS-GO. They did away with the card at some point at which I do not remember.

To the original poster: You will have to push the button on your key fob to unlock or lock the door since you do not have the KEYLESS-GO option.

Mike_W

I agree, a cool feature. There are used Keyless Go Cards for sale on eBay for $20 and up. Unlikely that they would work with a newer e-class though.
Mike

Barry45RPM

Not so. Keyless go in the 211 uses a smart key. No card was ever used.

Barry45RPM

His car has no wiring for keyless anything. No external key/card will activate anything.

jnash

keylessGo cards were used on the S class for 2003. In 2004 they were changed out for the black plastic keyless go keys that are internally different from regular key fobs. The E class never had the cards, just the keys in 2004 for kelylessGo.
You cannot use a used key or card from ebay for example because all MB keys are pre-pregrammed and married to you car with the vin number. There are people overseas who know how to read the processor chip and rewrite the key to make it work with their cars. I have not found anyone who can do this in the US.
The S class 2003-2006 keyless is different from that on the E-class. The part numbers for all the KLGO components in EPC both cars are different.

SuperChargerE55

Wrong, Key Less go and Key Less entry is all depending on the same thing the KEY is Key Less Go wich Means Key Less all the way,
Entering key less
Start / Stop engine Key Less
for that to Work
need a keyless go Key
Key less Card activated
Assignment of keyless go control module (N69/5)
http://bayhas.com/mercedes/cl215/con...key_assign.htm


Try it out..