Air conditioning help!!

[Henjem]

Hi I've got a c200 2008 (58 plate) and my aircon stopped working. I took it in for a regas and still no luck, took it back and asked them to make sure the level was correct, which they did but still no luck! When I press the AC button it flashes 3 times then extinguishes. My mate plugged it in to a snap-on reader and I got the following codes, which when googled found nothing! Please help:-

919100 - the calculated refrigerant level is incorrect

910F15 - left passenger footwell vent sensor

Please help!

 

[edtzxr]

I had the air con on a c220 cdi 58 plate stopped working but not flashing as yours is took it for re gass they said it was full (and didnt charge me) halfords! turned out it was the air con pressure sensor had failed.. got it done at merc tech in liverpool who also fitted an fog light i had bought for less than £200.

 

[MancMike]

As above. My 08 W204 exhibited exactly the same symptoms as yours, the AC button flashing 3 times, etc.

It was the air con pressure sensor which is an £75~ part, plus fitting+vacuum&regas. It cost £150 all in at a good indy.