2006 S430 Key Replacement Suggestion - Mercedes-Benz Forum
 
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post #1 of 9 (permalink) Old 03-24-2018, 04:22 PM Thread Starter
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2006 S430 Key Replacement Suggestion

Hello,

When I tried to start my car the other day it wouldn't start. After many attempts I tried to jump the battery and still no start. I tried my spare key and it started immediately and has worked every since. It appears that I need a new key, but wasn't sure whether I could simple purchase from EBAY? By the way, the battery in the old key appears to be fine. Meaning it performs all the other functions (i.e. unlock doors, etc.). So my questions are:

1. Could it still be a key battery issue if it still works for everything except starting the car?
2. If not a battery issue is it okay to purchase a inexpensive replacement online instead of getting ripped
at the dealer?
3. Even if I purchase from online will there have to be some extra done at the dealer to get it to work?

Thanks in advance.

Troy
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post #2 of 9 (permalink) Old 03-24-2018, 05:06 PM
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Lets clear some things up.

The battery inside the key has nothing to do with the starting the car. The battery inside the key deals with locking/unlocking and panic button. The key uses both infrared and RF with the RF signal communicating with the car.

Your option is getting a new key from the dealer. You go in, the parts guy will check your license, registration and VIN (they all have to match) and order you a new key. The keys are shipped from Texas and are ready to use from the box.

You can't go on eBay and buy used keys. It doesn't work that way. Once they are coded to a car, thats it. Yes, there are some Chinese programs out there and people in Eastern Europe who have the ability to reprogram keys along with a lot of other illegal things, but this isn't helping you today.
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post #3 of 9 (permalink) Old 03-24-2018, 07:53 PM
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As stated, the remote functions are completely separate from
The Starting function on your key , and the only way to get a key that works is to bring your car your registration and your ID to a mb dealer . They need to verify you are the car owner before they will order a key
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post #4 of 9 (permalink) Old 03-25-2018, 03:26 AM
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Hi,

It is not Illegal to program MB Keys, unless they are to be used for illicit purpose. (Well it isn't illegal in UK anyways)

It is however against Mercedes Benz Policies, and they will not endorse the various procedures involved, their way is from the Vin No and via PDC who get the Vehicles allocated Key codes from FDOK Database, then the Key is supplied to the Dealer who supplies Customer.

Don't know if you have specialist locksmiths in USA, they will be able to Program a new (Virgin) Key, but decent ones will still require Proof of Ownership.

In UK there are only 2 firms that I would trust, and they are generally half the price of Main Stealer for a new working Key. Locksmith ~ 180, MB ~ 350

Steer well clear of the backstreet "yeah yeah yeah, we can do that" mob or you will probably end up with a non starting Car with a goosed EIS

There is a guy on here in USA who is a good MB Locksmith, not sure if you are near to him and he can do the job for you, @Deplore , or there is another guy @93SoCal400E who has successfully repaired non working keys for members here

HTH,

Cheers Dave

Last edited by Dave2302; 03-25-2018 at 03:42 AM.
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post #5 of 9 (permalink) Old 03-25-2018, 05:38 PM
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Like Dave says, it's not illegal per se, but MB heavily frowns on these shenanigans as that undermines them...don't be surprised if the kind folks at MB dealers refuse to work on a EIS that has been worked on before...especially if the work has been sloppy.

Anyway, option 1: dealer.

Option 2: find well equipped locksmith who can work on MB...but be aware that those kind of locksmith charge a lot. $500 per key is not uncommon around here in LA. Which is insanity when the dealer charges between $250-300 for a key.

Option 3: ship the EIS to someone who can make extra keys for it, but downside: the car will be a paperweight for the duration of the repair.
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post #6 of 9 (permalink) Old 03-26-2018, 11:02 PM
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I can probably fix the bad one.

It is likely that the coil that turns magnetic energy into DC current has broken off. Or one of it's baby-fine hair sized wires.
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post #7 of 9 (permalink) Old 05-10-2019, 09:18 AM
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Troy, you might want to take the key out of the fob and try to clean the IR port from the inside with a Qtip. Lint and other stuff can collect in the fob and block the IR port at the tip of the fob. It is a quick fix if that happens to be the problem.
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post #8 of 9 (permalink) Old 05-10-2019, 11:02 AM
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Quote:
Originally Posted by boxsterman View Post
Troy, you might want to take the key out of the fob and try to clean the IR port from the inside with a Qtip. Lint and other stuff can collect in the fob and block the IR port at the tip of the fob. It is a quick fix if that happens to be the problem.
This post was over a year ago and I am sure the OP or Troy did find a solution to the problem by now LOL
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post #9 of 9 (permalink) Old 05-10-2019, 11:05 AM
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Oh boy...do I feel stupid...Looked at the March date but missed 2018 altogether... nevertheless, I hope it was a useful suggestion for anybody looking to solve their problem (I'm dealing with the same issue myself).
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