When i start the A/C there comes a bad smell for 2-5 minutes. I have tried many times to spray different disinfectant, changed the cabin filter, but after one week the odor comes back.
Where is placed the evaporator coil, pan and the drain pipe that takes the water out? I need to clear them all.
The odor is not uncommon, it's a bacteria that grows in warm wet conditions, like an ac box. There have been many treatments made available here in the USA but the only solution is replacing the ac evaporator assembly with one that is made from a special material/Lysol disinfectant used to work for a time then you re-sprayed through the fresh air intake and letting it sit with ac off for 30 minutes.
Bill
I'm sorry, I forgot to answer your question. The Evap is located within the heater box behind the center console. It is a bit of a job to replace.
Bill
People have had the best luck buying the spray from the MB dealer's parts counter. Kind of like the water wetter, de-icer for the windshield wiper fluid, etc., it is overpriced but it might be worth the investment if it actually works well.
i actually need to REPLACE my evaporator. my short-lived recharges result in a sour smell in the interior. once the recharge has leaked out, the smell goes away (even with ac running). i'm convinced i've popped my evap with an overcharge, so i simply must dig in there and replace it.
I am not afraid of this job. at all. I did the head gasket all by myself.
With AC not working, you're not making moisture in the system, and everything dries out. Smell goes away. Try changing the paper filter.
Put in a dye and look for the leak, or get a good sealer and try it before you try replacing the evaporator. Surgery without anesthesia would be a better option than replacing the evaporator in the W202!
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Mercedes-Benz Forum
7.6M posts
694.8K members
Since 1999
BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. The site includes MB Forums, News, Galleries, Publications, Classifieds, Events and much more!