Is it normal to see some water dripping from the undercarriage when using your AC? I remember my sister's Civic did that, and a friend said that it's normal for cars to do that. I guess my concern is how can you tell if it's just normal AC usage and not some water leak or AC problem? Car is a '90 190E. Thanks.

Yes, this is a normal condition. The water you are seeing is condensation from the evaporator. Drains from over the tranny onto the ground. On humid days, it can be quite a flood.

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Jeff L
1987 300e
1989 300e
1987 BMW 325

cossie,

If you're worried about this being some other fluid, just touch it with your finger. If it's water, and not a vital fluid, you'll know right away.

Good luck,

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Larry Bible
'84 Euro 240D, 516K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in
Mercedes automobiles