Has anyone used MB HVAC system cleaner
Thread Starter
Member
Joined: May 2018
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From: SoCal
2020 E450 4matic wagon
Has anyone used MB HVAC system cleaner
Hello,
Some good threads in the E-Class sub forums about resolving A/C odors. Thanks for posting.
https://mbworld.org/forums/e-class-w...like-feet.html
According to my local dealership, they claim that the W212 (S212) has a fungicide coating on the evaporator core to reduce the bacteria growth and that I should only need to replace the combi filter.
I still think that there is mold growth on the coil because its downstream of the combi filter and only stinks when the a/c is ON.
I am planning to spray some MB HVAC sys cleaner on my evaporator via the cabin air filter holder.
Has anyone used the MB product?
HVAC System Cleaner; 8 oz Aerosol Can P/N: MB-Q1830002 Genuine Mercedes
Some good threads in the E-Class sub forums about resolving A/C odors. Thanks for posting.
https://mbworld.org/forums/e-class-w...like-feet.html
According to my local dealership, they claim that the W212 (S212) has a fungicide coating on the evaporator core to reduce the bacteria growth and that I should only need to replace the combi filter.
I still think that there is mold growth on the coil because its downstream of the combi filter and only stinks when the a/c is ON.
I am planning to spray some MB HVAC sys cleaner on my evaporator via the cabin air filter holder.
Has anyone used the MB product?
HVAC System Cleaner; 8 oz Aerosol Can P/N: MB-Q1830002 Genuine Mercedes
Thread Starter
Member
Joined: May 2018
Posts: 213
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From: SoCal
2020 E450 4matic wagon
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From: West Central Florida
2011 E550 P2 4M Sedan
You can always stick a cell phone with video up into the filter housing to see the evap coil if you want to see its condition. Mine looked clean even though I was getting the smell. The filter change got rid of the smell. If a new filter doesn't solve it then I would try the cleaner.
Thread Starter
Member
Joined: May 2018
Posts: 213
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From: SoCal
2020 E450 4matic wagon
You can always stick a cell phone with video up into the filter housing to see the evap coil if you want to see its condition. Mine looked clean even though I was getting the smell. The filter change got rid of the smell. If a new filter doesn't solve it then I would try the cleaner.
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2020 GLS450 (wife) / 2024 Ford Bronco (mine) / 2014 VW Tiquan (son)
I used a spray foam type of material that came with a long plastic hose last summer on my car. Put it behind the air cabin filter into the evap coil area and filled it up. There is a YouTube video out there of a guy doing this. Pretty easy. Foam washed through the coil and drained out the tube underneath. Yes, what drained out was not very pleasant and clearly indicated some mold/fungus was indeed on the coil. The smell went away for the remainder of the year. Has started to come back at first start now, but lasts about all of 5 seconds then goes away as the coil starts to sweat and drain out underneath the car. All of my cars get stinky like this. Bought cans for all last year and did each one. Fixed each one as well (VW was worst offender). But have to do it every year to stay on top of it.
There is a permanent fix for this issue if car manufacturers wanted to do it. Just install a UV light inside the coil housing. It’ll kill off the mold and keep it from coming back. Will also kill off any germs, odors and allergies that pass through it, leaving your car smelling fresh and clean forever. Hospitals use this to help combat all of the crap floating around in their air. I installed two of these lights in my home coil boxes last summer (2 boxes for 2 hvac units) after I washed down the coils themselves with a special spray cleaner/sanitizer). My home has never stunk ever since. Kids diaper blows out - I turn on the house fan via my phone (smart thermostat), air gets pulled into the system through the UV light area, and smell is gone for good. When we turned on our ac for the first time this year - still smelled fresh and clean after sitting idle for months. Usually would stink for an hour or two of a musty damp odor.
There is a permanent fix for this issue if car manufacturers wanted to do it. Just install a UV light inside the coil housing. It’ll kill off the mold and keep it from coming back. Will also kill off any germs, odors and allergies that pass through it, leaving your car smelling fresh and clean forever. Hospitals use this to help combat all of the crap floating around in their air. I installed two of these lights in my home coil boxes last summer (2 boxes for 2 hvac units) after I washed down the coils themselves with a special spray cleaner/sanitizer). My home has never stunk ever since. Kids diaper blows out - I turn on the house fan via my phone (smart thermostat), air gets pulled into the system through the UV light area, and smell is gone for good. When we turned on our ac for the first time this year - still smelled fresh and clean after sitting idle for months. Usually would stink for an hour or two of a musty damp odor.
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Thread Starter
Member
Joined: May 2018
Posts: 213
Likes: 66
From: SoCal
2020 E450 4matic wagon
I used a spray foam type of material that came with a long plastic hose last summer on my car. Put it behind the air cabin filter into the evap coil area and filled it up. There is a YouTube video out there of a guy doing this. Pretty easy. Foam washed through the coil and drained out the tube underneath. Yes, what drained out was not very pleasant and clearly indicated some mold/fungus was indeed on the coil.
How long did you let the foam sit ? 15 minutes?
Did did you turn ON the blower to dry the evap ?
Any other procedures. The can doesn't include any directions other than see the repair manual and I waiting for those to arrive next week.
Thread Starter
Member
Joined: May 2018
Posts: 213
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From: SoCal
2020 E450 4matic wagon
Update...dispensed the entire bottle of the (MB HVAC Sys Cleaner). Foam filled the entire cavity between the evaporator and the cabin filter. I allowed it to soak for 20 minutes or until the foam settled to mostly liquid. Replaced the filter and ran the vent blower on low for 15 minutes. Odors are resolved.
Thank you all you who contributed to this thread.
Thank you all you who contributed to this thread.
