BMW e90 Replacement Key Issues: Remote Function, Central Locking Not Working, VIN-Based Key

Hello, I have a query. On my streak of misfortune, my jacket with the keys to the car was stolen. as it was only one copy and I do not have a backup key, I had to create a new one. A new key was made based on the VIN and car registration number. this is where the problem begins, because the key does not work. I charged the battery, assuming that maybe after a long period of standing (a month) he died. the alarm is chirping, the remote still doesn't work. the central locking does not work, and the lights do not light up after inserting the key. oddly enough, after inserting the remote control, you can easily remove it without pressing it (it looks like it would not be blocked by inserting it). I tried a million combinations to hold down one button, click the middle button three times, keep 30 seconds in the ignition, remove the remote and put it in.
I give up, the omniscient Internet did not answer.

any ideas before I rinse my account before returning the car to the dealer?

thanks in advance

Just not that key. How was the key received without checking? Since there is an invoice for the purchase of the key and programming, file a complaint. Well, unless the car was brought to Poland and some artist has already managed to reprogram all the modules to reverse the mileage.

The car is English, because I am sitting in England. The problem is that I made the key, I complained that the remote control does not work, in response I got information that the key is good because it was made on the basis of VIN.
the car was taken to the service, where on the invoice for the service it was written that "the car does not start. the diagnostician concluded that the CAS control unit must be replaced." with computer.
the question arises, how did he check that this module for reading the remote control is damaged if he could not connect to the computer. How did he come to this, so it was a problem with the module? and dragging them by the tongue, he does not learn anything concrete. and I still do not know if it is not the key's fault, because explaining that the key is made on the basis of wine does not fully justify that the key must work?
I understand that the English are somewhat limited in their understanding of information, but they lead the client a little by the nose: /
replacement of the remote control module - PLN 3,000, where they do not even guarantee that the car will be able to drive after this replacement.
defeat...


Added after 4 [minutes]:
I also wanted to ask if anyone has a diagram of the remote control reader module. then perhaps it would be possible to bridge it and see if it fires.
the car is a 320d from 2005.
thank you for the information,
best regards.

karolka1322 wrote:

cannot connect to the computer.

aso service can not?
And here is the reason. No communication = will not fire.
According to I'm missing power.

There is no pattern, forget it, it does not make sense anyway. In my life, I would not agree to the service and pay without a guarantee that it will work. The only question is whether the answer was given or not whether it actually works.

The lack of communication is: no power, damage to this module, failure of another one that blocks communication with the rest of the car. I have magicians who repair such "hard cases".

-The car was smoking
- lost / stolen key
-charging the battery (disconnected clamps?, well connected, accidental short circuit with the key to ground, etc., etc. ???????)
-new key from aso and doesn't work
-diagnosis lack of communication.

the cars are standing after six months after commissioning and burning of cables

I would stick to point 3, asking what the owner had.

No power may be at the power control module. I don't remember what it's called and I don't want to check it. I was doing something similar and it was necessary to recalibrate the IBS. The symptoms were that he smoked as he wanted. I remember that in the current parameters (Live Data) I saw the lack of Klamp R, and maybe something else. The diagnosis was quick and the repair was operational and it is still going on today. But you look for professionalism, and don't look at a Czech who can't even read errors, because it's normally laughable.
Added after 30 [minutes]:

karolka1322 wrote:

after a long period of standing (a month) he died.

Therefore, it is important what happened to the battery.

And I remember something like this: one time he takes the key, one time he refuses to accept it, but before that it has taken it, but not smoking.
Something like that was there.

karolka1322 wrote:

Hello, I have a query. On my streak of misfortune, my jacket with the keys to the car was stolen. as it was only one copy and I do not have a backup key, I had to create a new one. A new key was made based on the VIN and car registration number. this is where the problem begins, because the key does not work. I charged the battery, assuming that maybe after a long period of standing (a month) he died. the alarm is chirping, the remote still doesn't work. the central locking does not work, and the lights do not light up after inserting the key. oddly enough, after inserting the remote control, you can easily remove it without pressing it (it looks like it would not be blocked by inserting it). I tried a million combinations to hold down one button, click the middle button three times, keep 30 seconds in the ignition, remove the remote and put it in.
I give up, the omniscient Internet did not answer.

any ideas before I rinse my account before returning the car to the dealer?

thanks in advance

It takes 10 minutes to start the E90 without the original key, provided that everything in the car is functional. Therefore, you need to start with the power supply, as you have already been told, the diagram in hand and check.

Welcome back. Whatever happens, I need to improve regarding this sensor on the terminal. Well, since everything looked good in the car that I am talking about, because I had the opportunity to see it a few times and for a long time (maybe two years) everything was OK, I am one hundred percent sure, not so long ago the guest landed on the service in Lublin, because he had no choice and had to leave him there due to the lack of reaction to the key. I learned about this by accident that IBS was thrown there and as a friend described it, "a new system was loaded" with the justification for a software defect. It happened about a month ago for no reason, despite as I said, the parameters in the IBS settings might seem correct, which I had the opportunity to see from time to time.

Well, due to the power supply, I was charging the battery, right after getting the key, when the car did not start, the car was tried to start by using another cables. It didn't even whine. I am sure that the battery, although the old one is good, after charging you can see a green LED on the battery status.

As I have a spare car and I am waiting for better times with cash (poor people in exile ) is still standing. It's a mistake, I know it shouldn't.

After searching the forum, both Polish and foreign, I came to the conclusion that
- or the previous owner had to replace the entire ECU together with the remote control coded for it, so there was only one
- or during the waiting time for the key, when the car was not started, there was a short circuit somewhere on the cables or in the computer (although I doubt because it was 2 weeks) (or even a month)
- or someone must have fumbled with it.

It is so strange that the car worked, everything was fine. Friday evening car N in the parking lot, the keys were stolen, I got a new key for 2 weeks and it does not work, no reaction.

I have two options and I don't know which one to choose:
- order the entire ECU with a remote control slot and keys (need to program the computer later?)
- give the Polish Magician who will code the current key for me on team computer

As I mentioned, BMW offered me a repair without a guarantee that the car would even work. And I'm in a fix.

Give me a woman car here ...

Thanks gentlemen for any answers


+ are you suggesting to possibly change the battery?

Oh, and I was hoping the car was done. I do not know if this is a good clue what I am saying, but for mine, if it is so bad, you have to call Lublin what they say. I am from this area and I know for sure that hardly anyone here undertakes the so-called ASO, i.e. guests have an idea of what they are doing.

I even thought what would it be sold as damaged, but I feel so sorry, because like a ton of crap .. And the car was working very well for me, everything was replaced, because I used to go to Poland and now give it back, and someone he would fix it for pennies and touch her until she was ashamed to think.

I am towards the option to buy the entire ecu with keys. And then go for full diagnostics as soon as it fails

However, it is fine to turn on the power and read the errors, and preferably the parameters, and put them here in the form of a photo or something. I can only confirm at the moment that the ignition was not going to be turned on at all in this beem, which is something like here, i.e. something like a total power failure. And what they did there, I would have to compare the parameters I have archived with those present in the car, because I do not know exactly that. Whether a physically thrown sensor plus a software update will do the trick is hard to say.

This is where my problem lies, I don't know how to start it.
I will talk to my dad, or if I change this unfortunate computer, maybe my little one will come back to life again. And then on the computer and upload diagnostics

I understand that these are different realities in the repair approach, but it won't do itself. Maybe ask the moderators from the forum, or rather someone knows someone who will help you there. There should be a module called MPM (micro power module) in the trunk and it may only need to be dried, because it sometimes causes something similar - it disconnects the power in the event of detecting a fault in the installation in the electric sleep state, which also seems to be confirmed, because the fault occurs in very similar circumstances and supposedly only then. As it happened in this case. But I have neither the knowledge nor the possibility to confirm it.

I haven't heard about this module yet. Thanks for the hint, it might be a lead. He'll be fun in the car tomorrow

Lack of power is not necessarily a damaged battery. Do you have any reaction to inserting the key?

The car does not respond at all.
After inserting the key, no lights come on, the alarm is still on, because the autopilot does not open the car either. To get inside, I have to open with a hard key, and the pilot slot does not even block it, as it should be after starting the car. the remote control can be easily removed. After trying to pull out the slot to detach it from the cables and reconnect it, the remote caught the blockade and did not want to give up the key, so to speak. Only after five of this drawer again, the lock released it was possible to remove the key, but after reconnecting the key, there was no reaction. During this time, there was no sign that the car responded to the pilot in any way.
That's why I was wondering if it was really the fault of this remote control slot, because at some point something of this blockade from alapalo, maybe as you say it is a problem with the power module, and at the same time bmw aso wanted to get as much as possible out of me . When asked if the key is functional, I only got the answer that it is, because it was made on the basis of a vin.

Well .. I'll be back from work after 5 today, so I'll check the car.