Exhaust smell in cabin
Thread Starter
Member
Joined: Mar 2009
Posts: 96
Likes: 0
2000 c230 Kompressor
Exhaust smell in cabin
Hi everyone,
Lately, I've been noticing a bit of an exhaust smell in the cabin of my c230 kompressor. I opened up the air filter box and the air filter has some oil on it near where the output goes to the engine. It must be some type of backflow from the engine. The oil level for the engine is near the maximum level. When the car is running, and you stick your head under the hood, there's a strong smell of exhaust being blown from the engine fan. There are no signs of smoke or anything.
Also, I've calculated that I've been getting around 14mpg, which is terrible! Given it's been mostly street mileage, but still, terrible.
My guess is that I should replace the air filter, but could the pcv valve be malfunctioning too? Or something else?
What do you think?
Thanks!
Lately, I've been noticing a bit of an exhaust smell in the cabin of my c230 kompressor. I opened up the air filter box and the air filter has some oil on it near where the output goes to the engine. It must be some type of backflow from the engine. The oil level for the engine is near the maximum level. When the car is running, and you stick your head under the hood, there's a strong smell of exhaust being blown from the engine fan. There are no signs of smoke or anything.
Also, I've calculated that I've been getting around 14mpg, which is terrible! Given it's been mostly street mileage, but still, terrible.
My guess is that I should replace the air filter, but could the pcv valve be malfunctioning too? Or something else?
What do you think?
Thanks!
Super Member
Joined: Jan 2006
Posts: 584
Likes: 1
From: Atlanta, GA
C230K
More than likely something is wrong with the EGR system. There is the oil separator or the two check valves that could be clogged/malfunctioning, tubing that could be split, etc. I need to get in and check this whole system too because my mileage is not the greatest. I have just never gotten around to it though. Knock on wood, no oil showed up on the filter last time I checked. When you start searching the forums to research this, make sure you just research the kompressor engine. The V6 and NA 4 engines utilize a different system.
