fault codes
Thread Starter
Newbie
Joined: Aug 2017
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mercedes c220 w204
fault codes
hey everyone, new to this so bare with me.
I have a 2008 Mercedes c220 w204 and have had a few issues with it over the last few months and have finally got round to trying to sort them out.
the first issue was my rear parking sensors not working, I have since had a diagnostic check done and confirmed that the left rear sensor is faulty but Mercedes want £99 for a replacement??
the second one is that my air con has stopped working, press the AC button and just get 3 red flashing lights? again the diagnostic check came up with the codes 919100 "the calculated refrigerant level is incorrect" and 912749 "the air quality sensor has a malfunction. there is an internal electrical fault" so I have had the system re-gassed today as that is what most garages recommend, they said the gas was ok but replaced it anyway but the aircon it still not working, any ideas??
the final problem is that when traveling on a motorway the car seems to drop in power for a second or two intermittently, I have had the yellow engine management light come on a few times, I have read the fault code with my own little £10 diagnostic checker and it shows P0183 fuel temperature sensor A circuit high, the fault resets fine but then comes back on when ever it feels like it. the better fault code reader came up with the following codes, 2054 "fuel temperature sensor HP pump (electrical fault)" and 22E0 "no vehicle speed signal read out fault memory of control unit N47-5 (ESP&BAS control unit)
apologise for the huge write up but any help on where to start with any of the faults would be greatly appreciated, Mercedes wont give up any technical info they just want £80 plus vat to put the car on their diagnostic checker
thanks in advance
I have a 2008 Mercedes c220 w204 and have had a few issues with it over the last few months and have finally got round to trying to sort them out.
the first issue was my rear parking sensors not working, I have since had a diagnostic check done and confirmed that the left rear sensor is faulty but Mercedes want £99 for a replacement??
the second one is that my air con has stopped working, press the AC button and just get 3 red flashing lights? again the diagnostic check came up with the codes 919100 "the calculated refrigerant level is incorrect" and 912749 "the air quality sensor has a malfunction. there is an internal electrical fault" so I have had the system re-gassed today as that is what most garages recommend, they said the gas was ok but replaced it anyway but the aircon it still not working, any ideas??
the final problem is that when traveling on a motorway the car seems to drop in power for a second or two intermittently, I have had the yellow engine management light come on a few times, I have read the fault code with my own little £10 diagnostic checker and it shows P0183 fuel temperature sensor A circuit high, the fault resets fine but then comes back on when ever it feels like it. the better fault code reader came up with the following codes, 2054 "fuel temperature sensor HP pump (electrical fault)" and 22E0 "no vehicle speed signal read out fault memory of control unit N47-5 (ESP&BAS control unit)
apologise for the huge write up but any help on where to start with any of the faults would be greatly appreciated, Mercedes wont give up any technical info they just want £80 plus vat to put the car on their diagnostic checker
thanks in advance
Senior Member
Joined: Feb 2010
Posts: 473
Likes: 15
From: SF bay area
C300 sport
hey everyone, new to this so bare with me.
I have a 2008 Mercedes c220 w204 and have had a few issues with it over the last few months and have finally got round to trying to sort them out.
the first issue was my rear parking sensors not working, I have since had a diagnostic check done and confirmed that the left rear sensor is faulty but Mercedes want £99 for a replacement??
the second one is that my air con has stopped working, press the AC button and just get 3 red flashing lights? again the diagnostic check came up with the codes 919100 "the calculated refrigerant level is incorrect" and 912749 "the air quality sensor has a malfunction. there is an internal electrical fault" so I have had the system re-gassed today as that is what most garages recommend, they said the gas was ok but replaced it anyway but the aircon it still not working, any ideas??
the final problem is that when traveling on a motorway the car seems to drop in power for a second or two intermittently, I have had the yellow engine management light come on a few times, I have read the fault code with my own little £10 diagnostic checker and it shows P0183 fuel temperature sensor A circuit high, the fault resets fine but then comes back on when ever it feels like it. the better fault code reader came up with the following codes, 2054 "fuel temperature sensor HP pump (electrical fault)" and 22E0 "no vehicle speed signal read out fault memory of control unit N47-5 (ESP&BAS control unit)
apologise for the huge write up but any help on where to start with any of the faults would be greatly appreciated, Mercedes wont give up any technical info they just want £80 plus vat to put the car on their diagnostic checker
thanks in advance
I have a 2008 Mercedes c220 w204 and have had a few issues with it over the last few months and have finally got round to trying to sort them out.
the first issue was my rear parking sensors not working, I have since had a diagnostic check done and confirmed that the left rear sensor is faulty but Mercedes want £99 for a replacement??
the second one is that my air con has stopped working, press the AC button and just get 3 red flashing lights? again the diagnostic check came up with the codes 919100 "the calculated refrigerant level is incorrect" and 912749 "the air quality sensor has a malfunction. there is an internal electrical fault" so I have had the system re-gassed today as that is what most garages recommend, they said the gas was ok but replaced it anyway but the aircon it still not working, any ideas??
the final problem is that when traveling on a motorway the car seems to drop in power for a second or two intermittently, I have had the yellow engine management light come on a few times, I have read the fault code with my own little £10 diagnostic checker and it shows P0183 fuel temperature sensor A circuit high, the fault resets fine but then comes back on when ever it feels like it. the better fault code reader came up with the following codes, 2054 "fuel temperature sensor HP pump (electrical fault)" and 22E0 "no vehicle speed signal read out fault memory of control unit N47-5 (ESP&BAS control unit)
apologise for the huge write up but any help on where to start with any of the faults would be greatly appreciated, Mercedes wont give up any technical info they just want £80 plus vat to put the car on their diagnostic checker
thanks in advance
I am probably not useful, but I would recommend finding a good independent shop to diagnose/repair your sensors.
The parking sensor for 99 euros doesn't seem bad at all considering it is a Mercedes part.
I have no idea about the rest of your sensor issues. Good luck.
