I've done a site search trying to find the location of the A/C condensate drain pipe on my 99 E300 but I've found nothing to help. I noticed I'm no longer leaving a wet spot on the driveway after coming home which is a sure sign of trouble. The A/C is cooling fine so I know the water has to go somewhere. I pulled up the mat on the passenger side and everything is dry.

I jacked the right front end up and crawled under with a good light but could not readily find the location of the drain so I could hopefully clear it with compressed air.

Can anybody tell me where the drain is located? I assume it is behind the front axle somewhere on the passenger side behind the tire, but after looking for about 30 min, I couldn't find it.

I feel a bit embarrassed....I'm sure it's staring me in the face.

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99 E300 133K
98 ML320 99K
87 Saab 900 Turbo Conv 123K

ok, this happened to me in my 124, i'm not sure if this applies to you but try this...
when i removed the matting, there's this black rubber pad which when removed had a thick insulation that is moulded to conform to the floor... is this the one you removed? coz if you just removed the carpetting then you missed where the water usually collects... the drain in mine goes through the tranny tunnel near the stereo to the pavement...

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85 190E 2.3(SOLD)
86 230E (-->300D)
87 300D (-->300TD)
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant)