Aircondition leak on Cclass 2015 w205, remove dashboard to change coil / evaporator

[Benzw205 0]

hello,

My aircondition is not cool anymore after 6 years without doing anything (I don't know if I should have done some maintenance ?), but when I add some gas, it's cool again.
Is it correct to think that we should never have to add any gas ? So it means that it's leaking ?

And if it's leaking, is it true that we have to remove the dashboard to change the evaporating coil (or anything it is called) ?

Is it the only solution to fix aircon problem ? and if anyone removes the full dashboard, is it better to just change the whole aircon system, compressor included ? (where is it located please?)

Finally, do you know how can any garage / mechanic be sure that the evaporator coil is leaking without removing the dashboard ? Just because gas level is lower means that evaporator is leaking ? There is no other solution ?

Thank you so much for your help

[Benzw205 0]

hello, any help please ?

 

[Benzw205 0]

Hello,

 

What is weird is that the stealer didn't use dye or sniffer to tell me that there is a leak...

 

And do you know if it's bad to use aircon with low gaz level ?

 

Thank you.

[Benzw205 0]

Ok, so I used a gas leak detector and it seems that the leak is really around the evaporator coil.

Is there really nothing else to try but remove the dash completely to change the coil ?

I might prefer to refill few times a year until I decide to change it if the only solution is to remove the dashboard.

 

[Benzw205 0]

By the way, do you know if when evaporator coil has a leak, compressor oil could also leak from the evaporator ? As it seems that oil is mixed with gas in the system ?

Or maybe most oil will remain in the compressor and can hardly leak from the system ?

If oil can leak from the evaporator coil, should I find oil under the car when parked ?

thanks again !