Condensation in the inside of the windshield when washing the car
Thread Starter
Member
Joined: May 2021
Posts: 228
Likes: 126
From: Zürich, Switzerland
S560 Long 4Matic (DE) MY 2018
Condensation in the inside of the windshield when washing the car
Hi everyone,
I washed my car yesterday (by hand but with pressurised water) and I realised that some condensation formed in the inside of the windshield, on the bottom corner on the passenger side. It's the first time I've seen this happen and I was wondering if there is a gasket or a seal that may have gone bad. The windows were closed shut prior to the wash.
The weather was a bit chilly and the water was hot, but I didn't notice anything on the driver's side. The door seals seem to be OK and I couldn't see anything on the window edges that would indicate something unusual.
Has anyone else encountered this? Should I be worried that this can cause damage in the long run? Thanks.
I washed my car yesterday (by hand but with pressurised water) and I realised that some condensation formed in the inside of the windshield, on the bottom corner on the passenger side. It's the first time I've seen this happen and I was wondering if there is a gasket or a seal that may have gone bad. The windows were closed shut prior to the wash.
The weather was a bit chilly and the water was hot, but I didn't notice anything on the driver's side. The door seals seem to be OK and I couldn't see anything on the window edges that would indicate something unusual.
Has anyone else encountered this? Should I be worried that this can cause damage in the long run? Thanks.
Senior Member
Joined: Apr 2016
Posts: 287
Likes: 74
From: Colorado
2004 W240 Maybach 57
Condensation on the inside windshield is not a leak, but warm, humid air in the cabin condensing on the cool windshield. Was the car perhaps still warm from being driven? Residual engine heat will allow warmer air to enter the cabin even after car/HVAC is off. Plus, the HVAC intake is in front of the passenger windshield, not the driver's, so there is a short path from outside to the passenger's inside windshield.
Thread Starter
Member
Joined: May 2021
Posts: 228
Likes: 126
From: Zürich, Switzerland
S560 Long 4Matic (DE) MY 2018
Condensation on the inside windshield is not a leak, but warm, humid air in the cabin condensing on the cool windshield. Was the car perhaps still warm from being driven? Residual engine heat will allow warmer air to enter the cabin even after car/HVAC is off. Plus, the HVAC intake is in front of the passenger windshield, not the driver's, so there is a short path from outside to the passenger's inside windshield.
Last edited by Quenthel; Sep 19, 2021 at 08:18 AM.
