FG 170.449 - HEATING AND VENTILATION > Mercedes EPC Online > nemigaparts.com
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Some more details as it is on the Left Steering vehicle\/ \/ \/
Windshield drains under the cowl
I found it near impossible to find a solution for this issue until recently, but still never found pictures. This should simplify it for people having the same issue. For the last couple months, every time it would rain more than a few drips, or we went to the car wash, the passenger floor...
As a general rule heat coming into the cockpit could be related to them "duovalves" and nothing to do with flaps...but that would be a matter of few checks:
Recirculation Vs fresh air
All of them are connected and do not need to have busted A/C in order to boil in your own juice...