my 1998 ml320; 81k miles.. the ac works for about 10 mins not very cold; when i turn the temperature **** all the way to the coldest it has a ticking noise and if i move back to warm/hot sounds stops.. any help appreciated. thanks

 

Did you try recharging the system?

 

how do i recharge the system? adding freon? thanks

 

how do you recharge the system

 

Take it to a local independant shop and tell them it needs to be charged or have them look it over.