Key Reprogramming- What's The Real Answer

[classiccarzone]

The dealer should have told him how to reprogram the new key, ask them how.
Try putting key into ignition, turn key to position 2 (ignition on) then press any button once or maybe twice.
don’t know if that’s correct but try it anyway.

Dec

Hi, thanks for the comment. The key will not turn in the ignition, as will be expected it being a new key. The method of programming the key is that you place it in the ignition; the red led light lights and after an undefined period of time the key programs itself.
This is not happening. Pressing buttons is not a solution.
I want to establish if the new key is a dud.
Some here have stated that their new key operated the central locking straight away; the main dealer says that this should not be possible.
I am looking for comments from posters who have experience of using a new key.

 

[zenman63]

I had a new key from MB and it just worked, open and drove with new key, not a problem and did nothing.
£165 inc a new blade.

 

[classiccarzone]

I had a new key from MB and it just worked, open and drove with new key, not a problem and did nothing.
£165 inc a new blade.

I am told that there are two types of keys. A replacement key and an additional key? or words to that effect.
One works straight out of the box, the other key needs to be placed in the ignition slot for a period of time.
I assume that my friend has the one that does not work straight out of the box as the main dealer instructed him to place it in the ignition until it functions.

Before he goes to much more expense what we really need to know is: Should the key, the one that requires to be left in the ignition for a period of time, operate the cars remote straight out of the box.
When we know that we will be able to make an educated assessment as to whether the supplied key is faulty or not.

 

[Dec]

My friend cannot start his 1998 e200. He put the key in the ignition yesterday and turned on to the ign and as he did that the key ring caught in his sleeve and pulled out the inside on the key.
Now the key will not release the lock or do anything else for that matter.
He went to the local main dealer and ordered a new key €192. He was told that this key needs to be left in the key slot to program. A day later nothing is happening.
Before he goes any further he needs to establish if the main dealer has supplied a duff key.
The battery is fully charged.

Another key(the starting facility failed in this key some months ago) will remotely lock and unlock the car.

The new key will not do anything. It is hard to see if the red light is lighting as in the new key the led sits inside the key slot. The led lights when any of the buttons are pressed.
The main dealer says that the new key will not remotely unlock and lock until it programs through the key slot.
from reading some posts here some say otherwise.
Any informed opinions on who is right or wrong or what needs to be done.

Which key was broken, Type A or Type B, could the broken key be reassembled?

Dec

 

[classiccarzone]

Hi Dec, its the "type B". The key has been reassembled and it is putting out a signal-has been viewed through a camera and tested by a Lock Dr- though the signal is not awfully strong. It will not do anything now and the ignition will not "buzz" when the key is inserted. All it will do is flash the led when the buttons are pressed.

A new key has been provided through the main dealer but this will not do anything either and we wish to establish if this key has been properly "issued" by the main dealer.

Some say that such keys work straight away and we want to establish if this is a fact.
It is all in the previous posts. Thanks.
ps: would like to add that the original key was working and had switched on the ignition before the insides were pulled out so it is highly unlikely that it is the EIS/DAS but then again it could have been shorted when the key fell apart.

 

[Dec]

The Red led on the fob is to indicate that the fob batteries are ok.

The fob batteries and the buttons are for lock and unlocking the car, locking and unlocking the car also arms and disarms the alarm.

The “buzz” is down to the coil inside the fob, if it is broken/damaged then the car won’t start. If you drop these keys the coil is known to brake, worth having a close look, it maybe repairable.
Even if there are no batters in the remote, the car should start if the coil inside the fob is ok.

Dec

 

[classiccarzone]

We have gone through all of that. The signals are all there. We can only assume that something short circuited when the key got "pulled" while the ignition was on position 2.
We have given up on the old key.
We have a new key straight from the main dealer; €192 worth. This key will not work and it is with this key we are trying to establish whether the main dealer did their job properly. Thanks

 

[Dec]

Zenman above says it works “out of the box” and you would expect a new fob from the main dealer to work ok.
Hopefully others may confirm what he says to be correct.

Dec

 

[classiccarzone]

Hope I have the terminology correct. From what I have gleaned so far there are two types of keys supplied by a main dealer. One is a replacement key, the other an additional key.
The replacement key in effect replaces any existing key and that existing key is rendered inoperable and the new key is required to be placed in the ignition for a period. The additional key should work straight out of the tin.
The main dealer now accepts that the remote in either of the aforementioned keys should work straight out of the tin and having confirmed that the battery is fully charged they are beginning to accept that the supplied key is defective.

 

[PenelopePitstop]

dealer can delete the key from the car

They did it during the first service. I ordered the key a bit earlier to make sure it's ready for collection on the service date.