Diesel exhaust inside the car... - Page 2 - PeachParts Mercedes-Benz Forum

Dervman · #16 10-28-2004, 03:27 PM

Wow, this is very interesting. I too have been chasing a fumes-in-the-cabin issue and knew nothing about these vent flaps.

Just for clarification, how do you determine if they are working OK or not?
What exactly is it you replace if they are not?

punky · #17 10-28-2004, 04:57 PM

Quote:

Originally Posted by Dervman

Wow, this is very interesting. I too have been chasing a fumes-in-the-cabin issue and knew nothing about these vent flaps.

Just for clarification, how do you determine if they are working OK or not?
What exactly is it you replace if they are not?

I only mentioned the flaps because I thought I remembered reading about it here last summer. I did a quick search here and and didn't find the message.
If I remember the message correctly there's suppose to be a plastic valance(cover) in the bottom of the trunk(bumper end)below lights, that you remove to access flaps. Now this valance could be outside between bumper and trunk bottom. I'll keep searching for the original message.

punky · #18 10-28-2004, 05:27 PM

Had same problem in a 1986 190D. Could not open windows or sunroof without sucking in diesel fumes. Spent way to much time looking for exhaust leaks and openings into the cabin. Exhaust smell was strongest in the trunk. Between the taillights there is a panel that hides trunk latch, wires, etc. Also hiding here are two one-way flapper valves that allow air exit (such as when slamming the trunk) but not entry. They snap into the bottom sheet metal that opens below the bumper. Found one just laying there. Cleaned up the minor soot, snapped it back in, found heaven. No more smell, can drive with windows open, sunroof open. Only "problem" is that #1 son turned 16, so of course, it now sports a stereo that can be heard way over the diesel, plus the interior glows with blue neon. The proplem is not the stereo, but whats on it. Pop in a Who CD and all is well. :-)
__________________
Hanno
190D2.5 5 spd.
300E 5 spd. conversion
6.9

Finally found the post, hope it helps. Thanks to Hanno

oilslick · #19 10-28-2004, 07:03 PM

Quote:

Originally Posted by punky

Between the taillights there is a panel that hides trunk latch, wires, etc. Also hiding here are two one-way flapper valves that allow air exit (such as when slamming the trunk) but not entry. They snap into the bottom sheet metal that opens below the bumper.

I found those vents. Mine have NO flapper in them!

I stuffed them with some old towels and "presto'! NO MORE EXHAUST IN THE CAR WITH THE WINDOWS DOWN!

THanks guys!

Kevin