[Munro]

Today I tackled the issue of water collecting in the engine undertray! Mercedes in their wisdom left a small 10mm drainage hole at the back of the tray which is badly positioned! I could have drilled several holes where the water collects but prefered a neater solution. I picked up a louvered vent from the local hardware store for £4 and set about letting it in where most of the water collected. Took about 20 minutes to complete. Happy days!

 

[LeonardoDaBenz]

Never been in there BUT from your top pic, looks like the "inside" ie towards the engine? Still going to need about 1/4" accumulation of water before it gets high enough to drain. Or is that the bottom ie facing the ground and the inside of your "addition" is basically flush with the cover?

 

[jbanks15]

they are called covers or paneling or trim depending on generation and not trays or pans

 

[Munro]

they are called covers or paneling or trim depending on generation and not trays or pans

Undertrays in England, but appreciate your comment, everyday is a school day

 

[jbanks15]

i am quoting MB epc/isppi and what it is called

 

[Munro]

View attachment 592173 View attachment 592174 View attachment 592175 Today I tackled the issue of water collecting in the engine undertray! Mercedes in their wisdom left a small 10mm drainage hole at the back of the tray which is badly positioned! I could have drilled several holes where the water collects but prefered a neater solution. I picked up a louvered vent from the local hardware store for £4 and set about letting it in where most of the water collected. Took about 20 minutes to complete. Happy days!

Never been in there BUT from your top pic, looks like the "inside" ie towards the engine? Still going to need about 1/4" accumulation of water before it gets high enough to drain. Or is that the bottom ie facing the ground and the inside of your "addition" is basically flush with the cover?

The louvered panel sits on the underside so is slightly lower than the cover allowing water to drain