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-   -   1999 E320 Key/Ignition Switch (http://www.peachparts.com/shopforum/tech-help/256699-1999-e320-key-ignition-switch.html)

bobbo 07-13-2009 01:44 PM

1999 E320 Key/Ignition Switch
 
After sitting overnight, our 1999 E320 we have to remove the key and re-insert it before cranking. Is this normal?? Also, how close should you have to be to the car for tha key remote to unlock the door?? Thanks!!

mbdoc 07-14-2009 08:50 AM

Do you leave the key in the ignition overnight??

The key has 2 types of unlocking signals...radio frequency range should be 25+- feet.

The infrared signal range is 3-4 feet & must be aimed at receiver.

bobbo 07-14-2009 09:46 AM

1999 E329 Ignition Switch
 
Yes we do leave the key in the ignition overnight since it is garaged. As for unlocking, can you switch from infrared to rf and if so, how?? Thanks!!

mbdoc 07-14-2009 10:12 AM

Should NEVER leave a "smart key" in the ignition, that can RUIN the $200+ key.

You can leave it in the console w/o any negative effect though.

Key transmits both signals every time you press any of the buttons.

bobbo 07-14-2009 11:34 AM

1999 E320 Ignition Sw/Key
 
Okay, I did not know that about the key. But why do I have to be within about 4-5 feet of the door for it to unlock them?? That makes it not much better than having to insert the key to unlock. Thanks.

'98 MB E320 07-14-2009 12:29 PM

Quote:

Originally Posted by M.B.DOC (Post 2246542)
Should NEVER leave a "smart key" in the ignition, that can RUIN the $200+ key.

You can leave it in the console w/o any negative effect though.

Key transmits both signals every time you press any of the buttons.

BTW Just replaced my key yesterday at, of course dealer only. COST total $ 235.00 USD programmed.

mpolli 07-14-2009 02:29 PM

Quote:

Originally Posted by bobbo (Post 2246616)
Okay, I did not know that about the key. But why do I have to be within about 4-5 feet of the door for it to unlock them?? That makes it not much better than having to insert the key to unlock. Thanks.

M.B. Doc said the key works at 25 feet. I would say my range is 10 to 15 feet but my battery is not new. The IR function is for the express window down feature.

mbdoc 07-14-2009 02:51 PM

1st question?? does the key have new batteries? 2nd, do you have more than 1 key & do both keys do the same thing?

bobbo 07-14-2009 08:19 PM

1999 E320Ignition Sw/Key
 
No and yes. I tried the other remote and it works from approximately 20 feet. Next time we are near a MB dealer I will stop in and see about getting a new battery. Thanks!!

jcyuhn 07-15-2009 01:30 PM

No need to go to the MB dealer. It uses a very common watch/electronics battery - a CR2025 if my memory is any good (usually isn't). Instructions for changing the battery are included in the owners manual.

bobbo 07-16-2009 11:10 AM

1999 E320 Key Battery
 
Okay, can anyone tell me if JC is right about the battery number for the electronic key?? Thanks!!


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