💧 Water Damage Without Rain? Yes, It Happens.

Many drivers are surprised when they hear a vehicle has water damage even though it has never been driven in heavy rain or through flooded roads.

One common cause is a blocked A/C condensate drain. When the drain becomes clogged, condensation produced by the air conditioning system cannot escape properly and may overflow into the cabin. Another possible cause is a small crack in the HVAC plastic housing, allowing condensation to leak where it shouldn’t.

As moisture spreads under the carpet, it can reach wiring harnesses, connectors, and electronic control modules. The result can be electrical faults that look very similar to those found in flood-damaged vehicles, including warning lights, communication errors, intermittent electrical problems, or even a no-start condition.

If the moisture remains unnoticed, corrosion can develop inside connectors and modules, making repairs much more expensive.

When replacing the cabin air filter, it’s a good idea to inspect the A/C condensate drain, check that water drains properly, and look for any signs of moisture under the carpet. A few extra minutes of preventive inspection can help avoid costly electrical repairs later.*

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