W203 water in drivers footwell

[Pioo]

Noticed a puddle the day in my car a good 2-3 litres.
Wondering if this has happened to anyone else?
Guessin the drains were blocked up but having difficulty finding them.
Any help would be appreciated.

 

[swann]

Be careful with this one as I lost my last merc due to it. Drains were blocked, water came in, heater system etc drained up the water as I drove and in turn fried the ecu and damaged the electrics.

Maybe start with one of those wet vacs and get as much out as possible and then try locate the blockage.

 

[fatdazza]

Noticed a puddle the day in my car a good 2-3 litres.
Wondering if this has happened to anyone else?
Guessin the drains were blocked up but having difficulty finding them.
Any help would be appreciated.

Driver's footwell or passenger footwell?

 

[zebmapara]

another place to have a kwik look is the black plastic that runs along across the bottom of the front windscreen, thru yo wiper blades. see if its stil stuck to the screen

 

[Pioo]

Have it well dried out now, cannot find were it is getting in at all.
Its the drivers footwell.
The black plastic is still at the bottom of the windscreen.
Any other ideas?

 

[swann]

The plastic will not have moved from the windscreen. It's a scuttle.

You need to check if the drains are blocked with leaves or debri and poke it out.

 

[Stratman]

Open the bonnet. At the rear corners of the engine compartment, under the windscreen, are two areas probably full of leaves and twigs. Under the leaves and twigs are drain tubes which, if blocked, can cause water to overflow into the cabin.

 

[fatdazza]

I had a similar problem with water in the driver's footwell on my W203. After clearing the drains and checking that they drain the scuttle freely (using a watering can). It turned out to be the windscreen which was replaced 8 months previously by autoglass had not bonded properly at the drivers side. They came back and refitted it and no more puddles.

Best item for cleaning the drains I found was a piece of net curtain wire (from homebase - hollow coiled wire with a plstic coating). Flexible enough to go around the bends but stiff enough to push (i.e. not like trying to push a rope!)

Good luck finding the leak and get it sorted quickly before things go mouldy!