AC not cooling B11EA49
Thread Starter
Newbie
Joined: Apr 2023
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W222 S550 4Matiic 2015
AC not cooling B11EA49
Hello all,
I need some with my AC for W222 2015 S550 4 Matic including rear AC with 4 climate zones.
My AC was not cooling and blowing hot air. Compressor clutch and blower is working. Dealer said receiving was low and filled it with dye. It started working but 2 weeks later same issue with refrigerant low. Filled it again with dye at local shop on a weekend and no leak found again. Noticed that rear AC was not blowing cold after fill while front worked fine. Did a diagnostic and found error code;B11EA49 / The Shutoff Valve Of The Rear Air Conditioning Has A Malfunction. There Is An Internal Electrical Fault.
Wondering if rear shut off valve is causing the leak and any advice how to fix.
Thank you
I need some with my AC for W222 2015 S550 4 Matic including rear AC with 4 climate zones.
My AC was not cooling and blowing hot air. Compressor clutch and blower is working. Dealer said receiving was low and filled it with dye. It started working but 2 weeks later same issue with refrigerant low. Filled it again with dye at local shop on a weekend and no leak found again. Noticed that rear AC was not blowing cold after fill while front worked fine. Did a diagnostic and found error code;B11EA49 / The Shutoff Valve Of The Rear Air Conditioning Has A Malfunction. There Is An Internal Electrical Fault.
Wondering if rear shut off valve is causing the leak and any advice how to fix.
Thank you
Thread Starter
Newbie
Joined: Apr 2023
Posts: 10
Likes: 0
W222 S550 4Matiic 2015
Thank you konigstiger for your reply.
I have ordered the shut off valve and seals for the pipes. Will update with results.
I was planning on replacing the Schrader during this repair. Was able to order the low side Schrader valves but dealer said high side needs a pipe/hose change? What are your thoughts?
Thank you!
I have ordered the shut off valve and seals for the pipes. Will update with results.
I was planning on replacing the Schrader during this repair. Was able to order the low side Schrader valves but dealer said high side needs a pipe/hose change? What are your thoughts?
Thank you!
Thread Starter
Newbie
Joined: Apr 2023
Posts: 10
Likes: 0
W222 S550 4Matiic 2015
I followed the instructions and it fix the error code.
Important thing is there was never a leak as the dealer kept on filling refrigerant and no point to look for one. The issue is that with this code this refrigerant is unable to come back to the compressor from the high side. This leads to the compressor, bringing the low side to zero and then stopping as there is no gas to compress. So if you have this code, then don’t waste your time looking for trying to add the refrigerant thinking that it’s low.
Thank you very much for your help.
Important thing is there was never a leak as the dealer kept on filling refrigerant and no point to look for one. The issue is that with this code this refrigerant is unable to come back to the compressor from the high side. This leads to the compressor, bringing the low side to zero and then stopping as there is no gas to compress. So if you have this code, then don’t waste your time looking for trying to add the refrigerant thinking that it’s low.
Thank you very much for your help.
Newbie
Joined: Oct 2022
Posts: 4
Likes: 0
S550
I followed the instructions and it fix the error code.
Important thing is there was never a leak as the dealer kept on filling refrigerant and no point to look for one. The issue is that with this code this refrigerant is unable to come back to the compressor from the high side. This leads to the compressor, bringing the low side to zero and then stopping as there is no gas to compress. So if you have this code, then don’t waste your time looking for trying to add the refrigerant thinking that it’s low.
Thank you very much for your help.
Important thing is there was never a leak as the dealer kept on filling refrigerant and no point to look for one. The issue is that with this code this refrigerant is unable to come back to the compressor from the high side. This leads to the compressor, bringing the low side to zero and then stopping as there is no gas to compress. So if you have this code, then don’t waste your time looking for trying to add the refrigerant thinking that it’s low.
Thank you very much for your help.
Did you have to follow all of the procedures in each atrachment?
Newbie
Joined: Oct 2022
Posts: 4
Likes: 0
S550
Hello all,
I need some with my AC for W222 2015 S550 4 Matic including rear AC with 4 climate zones.
My AC was not cooling and blowing hot air. Compressor clutch and blower is working. Dealer said receiving was low and filled it with dye. It started working but 2 weeks later same issue with refrigerant low. Filled it again with dye at local shop on a weekend and no leak found again. Noticed that rear AC was not blowing cold after fill while front worked fine. Did a diagnostic and found error code;B11EA49 / The Shutoff Valve Of The Rear Air Conditioning Has A Malfunction. There Is An Internal Electrical Fault.
Wondering if rear shut off valve is causing the leak and any advice how to fix.
Thank you
I need some with my AC for W222 2015 S550 4 Matic including rear AC with 4 climate zones.
My AC was not cooling and blowing hot air. Compressor clutch and blower is working. Dealer said receiving was low and filled it with dye. It started working but 2 weeks later same issue with refrigerant low. Filled it again with dye at local shop on a weekend and no leak found again. Noticed that rear AC was not blowing cold after fill while front worked fine. Did a diagnostic and found error code;B11EA49 / The Shutoff Valve Of The Rear Air Conditioning Has A Malfunction. There Is An Internal Electrical Fault.
Wondering if rear shut off valve is causing the leak and any advice how to fix.
Thank you
