skittles

hey guys been looking for answers to this. my exhaust has alot of black carbon on it. its cleanable. but what makes this black carbon??? is it mechanical??? or just normal. coz its really annoying to polish my muffer everyday.

samaritrey

i read somewhere where that is normal. but you say that you polish it every day? if it is accumilating that fast then i would think something is wrong. my c320 has 125000 on it and i cleaned the mufler at like 120000 and it still looks really clean. so i dont know also what c class do you have?

skittles

2003 c230k m271 engine. please tell me whats wrong.

saer1one

i have a 2002 c32 with just over 40k miles and my tips are black and cant be polished.. i dont know wut makes the carbon but i came up with the conclusion why.. the first owner of the car lived in san francisco, that means no garages. he probably warmend up the c32 every morning like every one else. since the weather is really misty, the tips are wet. when the exhaust fumes are escaping, the water traps it and it later drys on the exhaust tips staining them. ive had the car for 8k miles now and ive kept it in the garage about 90% of the time ive had it and i havent noticed the tips getting darker.. this is just me..

C230 Sport Coup

Hey, what kind of rims are those saer1one ?

TemjinX2

it probably remanants of unburnt carbon from running slightly rich. Most factory fuel maps has the car run slightly rich to increase reliablity. It normal..just clean it.

saer1one

those wheels "were" EXE KONVEX.. just last saturday i had my front left tire blow out on me and damaged 3 of the wheels really bad while i was trying to get out of oncoming traffic.. i was thinking of replacing them but not worth it..

BlackLiquorish8

are you using prem gas? i'm sure you are... the only thing i would do is just wash them with rim cleaner and polish with chrome/wheel polish

tanktube67

If it doesn’t smog then is just running rich have you notice any change on the coolant temperature?