selwyng

Hi Guys

So sometime ago i removed the catalytic converter from my car. I had it replaced with a silencer/muffler. Now, if i drive with the windows open i get a lot of exhaust fumes coming into the car. (never had this problem before i removed the cat). The fumes/smell is quiet bad! my eyes actually burn with the fumes.

I took it to the exhaust people, there are no leaks etc. in the exhaust system.

I don't know what to do?

Any suggestions?

PS. I drive a 2001 C180 non kompressor. The mileage is 301000kms

nlpamg

That's normal since you removed the cats! The cats are what reduce the exhaust/gasoline smell.

Nothing is wrong. If you want to reduce the fumes, then you have to put cats back on.

selwyng

Oh snap!!

Carsy

I get no fumes in the cab from a pre cat car. Something else must be wrong. There are a lot of cars on the road without cats & they do not have this problem.

Place a rag over your exhaust with the car running to hear whether there are any leaks.

Try extending the tail pipe a little to clear the rear bumper . Mine is adjustable.

selwyng

Thanks Carsy... i did go to an exhaust specialist and no leaks were found.

Will go to someone different to get a second opinion

C230 Sport Coup

LOL! Well, guess you're not in the US.
So, what engine do you have, if not a Kompressor?
Curious since we didn't get that version here.

Glyn M Ruck

What did you do with the O2 sensors when you cut out the Cats?

Glyn M Ruck

C180 & C200 were available naturally aspirated prior to Kompressor in ROW.

selwyng

Hey Glyn

The O2 sensor is still there, they just installed a 'cat block', or at least i think that is what they call it.

selwyng

Hey C230...

Nope, im not in the US. I reside in South Africa.

I have the w203 C180 (M111 engine).

C230 Sport Coup

What is the displacement?

selwyng

I think its a 1799 cc (1.8 L) it produces 95kW (129hp).

The w203 (like mine) has the M111.921 engine whereas the w202 has the M111.920 engine

Glyn M Ruck

Are you storing any fuel trim codes?

selwyng

No nothing at all.