AUTOMATIC CHILD SEAT RECOGNITATION (AKSE)

[BABA74]

Hello
My AUTOMATIC CHILD SEAT RECOGNITATION (AKSE) has broken I get an error message on the display mercedes doesn't make the part anymore does anyone have a passenger seat for sale with the sensor or has anyone experienced this before? what have you done, coded away the function or set an emulator? grateful for all replies

 

[DSM10000]

Welcome to the forum.
It might help you get an answer if you mentioned the model and year of the vehicle.

 

[BABA74]

Welcome to the forum.
It might help you get an answer if you mentioned the model and year of the vehicle.

Hello

The article number is on the box in the picture and what model it is , BUT I can write it, Model w212 s212 A2128700110

 

[DSM10000]

Hello

The article number is on the box in the picture and what model it is , BUT I can write it, Model w212 s212 A2128700110

The part number yes.

Parts are often used over various models though

 

[BABA74]

The part number yes.

Parts are often used over various models though

WRONG!
Then the article number does not die with e.g. W212..... then it starts with w204 if it fits in general Thank you for taking the time to help me you have been a great help

 

[DSM10000]

WRONG!
Then the article number does not die with e.g. W212..... then it starts with w204 if it fits in general Thank you for taking the time to help me you have been a great help

So, for clarity is the vehicle a W204 or w212?

 

[BABA74]

So, for clarity is the vehicle a W204 or w212?

can't you see in the picture which model it is? it starts with W212
you wrote before that other mercedes models can have the same part with BUT THEN THE ART number DOESN'T START with w212. for example, it starts with
W204 CAN IT fit w212 with

 

[BABA74]

 

[markjay]

can't you see in the picture which model it is? it starts with W212
you wrote before that other mercedes models can have the same part with BUT THEN THE ART number DOESN'T START with w212. for example, it starts with
W204 CAN IT fit w212 with

This is incorrect.

Both my W203 and W204 had plenty of parts whose part number started with a different model designatIon.

If an item was originally made for the W212, then the part number will indeed start with 212.

But if the same item was later used for another model, than the 212 prefix wil remain.

 

[DSM10000]

can't you see in the picture which model it is? it starts with W212
you wrote before that other mercedes models can have the same part with BUT THEN THE ART number DOESN'T START with w212. for example, it starts with
W204 CAN IT fit w212 with

I suggest that you curb your arrogance and read the post by Markjay

YOU are incorrect

 

[FiveAlive]

Regarding emulators: I looked into these when the AKSE sensor failed on our W169. The emulator always report the seat as having an adult in it, which means that you also have to disable the seatbelt warning, and if you do have an accident the airbag will fire at full power. Mercedes front airbags usually use a lower power settings if a child or light adult is detected in the seat, to give them a softer crash. The child seat recognition is of limited value, I think, as it only works with specific models of child seat, it isn't 100% accurate and so you are always meant to confirm that it has been detected by checking the light on the dashboard. So if a future owner tries to fit a compatible child seat and follows the instructions they should realise that their child seat hasn't been detected, Regardless, the car should already have a couple of warning stickers about not fitting a child seat in the front of the car at all.

Obviously the ideal solution would be a replacement sensor, but I think an emulator has its place and the existing warnings would hopefully prevent someone from fitting a child seat and assuming it is okay.

 

[BABA74]

I suggest that you curb your arrogance and read the post by Markjay

YOU are incorrect

 

[BABA74]

Regarding emulators: I looked into these when the AKSE sensor failed on our W169. The emulator always report the seat as having an adult in it, which means that you also have to disable the seatbelt warning, and if you do have an accident the airbag will fire at full power. Mercedes front airbags usually use a lower power settings if a child or light adult is detected in the seat, to give them a softer crash. The child seat recognition is of limited value, I think, as it only works with specific models of child seat, it isn't 100% accurate and so you are always meant to confirm that it has been detected by checking the light on the dashboard. So if a future owner tries to fit a compatible child seat and follows the instructions they should realise that their child seat hasn't been detected, Regardless, the car should already have a couple of warning stickers about not fitting a child seat in the front of the car at all.

Obviously the ideal solution would be a replacement sensor, but I think an emulator has its place and the existing warnings would hopefully prevent someone from fitting a child seat and assuming it is okay.

Thanks for the answer! it is clear that the original is better than the emulator, but it is not available in Europe

 

[DSM10000]

Hi, I recommend you stick to US cars, not European cars

Why would I do that? I am clearly not in America or do you have trouble reading or, possibly, understanding?

It is very clear that you are wrong in your assumption regarding the part but clearly are not sufficiently grown up to admit it.

I am blocking your posts as there are enough imbeciles in the world with engaging with another one!

 

[BlackC55]

Hi, I recommend you stick to US cars, not European cars

As someone that orders parts everyday.... A 212 can have parts that have a 204 part number.

 

[markjay]

View attachment 166532

I think you are confusing two things here.

The fault is with the Front Passenger Seat Occupancy Sensor, aka 'sensor mat'. It's purpose is to prevent activation of the front passenger airbag in the event of a crash when the front passenger seat is unoccupied (to save on the repair cost).

This is a standard feature on all MB cars.

The Automatic Child Seat Recignition System (AKSE) is an optional bolt-on feature that uses the same sensor mat. When an MB-approved child seat is placed on the front passenger seat, the AKSE system will recognise its presence via a built in transponder, and will deactivate the front passenger airbag to protect the child.

This means that the (optional) AKSE system acutely negates the standard feature by not allowing the front passenger airbag to deploy in the event of a crash, even if the seat is occupied, because the AKSE system detected the presence of a child seat.

(You can also run the VIN in a free VIN decoder to see if your car actually has the AKSE option fitted , or just the hardware for it but the option is not activated).

Unfortunately, the sensor mat failure is a very very common fault on all MB cars. Trying to resolve this by buying a second-hand seat isn't recommended, because (a) there's no way of telling if the sensor mat in the second hand seat is working, (b) if its the original sensor mat, then it will probably fail soon enough, and (c) if they donor car had different options (AKSE, heated seats etc) then the sensor mat might not fit your car - the front SAM will know which options to expect.

You absolutely have to buy the exact same part number (or, if EPC is showing an alternative new part number for your car), keeping in mind that AKSE is an option coded into the front SAM.

There are chep Chinese emulators that you can buy on eBay that bypass the sensor mat, what they do is tell the car that the front passenger seat is always occupied, and therefore the front passenger airbag should always deploy in the event of a crash (even if in reality the front passenger seat it actually unoccupied).

Personally, I would never ever install such an emulator, first and foremost because you should never temper with the car's safety systems, but then also because it's an insurance nightmare (if it came to that) - you can't really declare this mod to your insurer, and in the event of a claim they might query the fact that both front airbags are on the repair list while you were the only occupant in the car etc.

 

[BlackC55]

And to answer your question. Buy a new pad from your local Mercedes dealer. Do not fit second hand.

 

[BABA74]

I think you are confusing two things here.

The fault is with the Front Passenger Seat Occupancy Sensor, aka 'sensor mat'. It's purpose to prevent activation of the front passenger airbag in the event of a crash when the front passenger seat is unoccupied (to save on the repair cost).

This is a standard feature on all MB cars.

The Automatic Child Seat Recignition System (AKSE) is an optional feature that uses the same sensors. When an MB-approved child seat is placed on the front passenger seat, the AKSE system will recognise its presence via a built in transponder, and will deactivate the front passenger airbag to protect the child.

This means that the (optional) AKSE system acutely negates the standard feature by not allowing the front passenger airbag to deploy in the event of a crash, even if the seat is occupied, because the AKSE system detected the presence of a child seat.

Unfortunately, the sensor mat failure is a very very common issue on all MB cars. Trying to resolve this by buying a second hand seat isn't recommended, because (a) there's no way of telling if the sensor mat in the second hand seat is working, and (b) if its the original sensor mat, then it will probably fail soon enough.

You absolutely have to buy the exact same part number (or, if EPC is showing an alternative new part number for your car), keeping in mind that AKSE is an option coded into the front SAM.

(You can also run the VIN in a free VIN decoder to see if your car actually has the AKSE option, or just the hardware for it but the option is not activated).

There are chep Chinese emulators that you can buy on eBay that bypass the sensor mat, what they do is tell the car that the front seat is always occupied, and therefore the front passenger airbag should always deploy in the event of a crash (even if the front passenger seat it unoccupied).

Personally, I would never ever install such an emulator, first and foremost because you should never temper with the car's safety systems, but then also because it's an insurance nightmare (if it cane to that) - you can't really declare this mod to your insurer, and in the event of a claim they might query the fact that both front airbags are on the repair list while you were the only occupant etc.

Thanks, I'll see if I can find a used one. this is the equipment code U18 AUTOMATIC CHILD SEAT RECOGNITATION (AKSE)

 

[BlackC55]

See my post above. Buy new only.

 

[ALFAitalia]

Thanks for the answer! it is clear that the original is better than the emulator, but it is not available in Europe

Seem to be loads of places you can get them online....

Occupancy Mat Mercedes W212 Front Passenger Seat Sensor Control Unit A2128703010 | eBay

We will ALWAYS try our best to help. VEHICLE COMPATIBILITY. Genuine used OEM part. Part no: A2128700110. Part Replaces It is also possible to collect the item from UK warehouse. This item is used but is in good condition and is in full working order.

www.ebay.co.uk