How come my exhaust tips in my new 2005 MCS do not get the black soot build up like my old 2002 MCS did. Did MINI change the tuning and or the cat/exhaust? Do all 2005 keep thier tips clean?

 

The lower portion of the tips on my '05 MCS are dark/sooty; can't keep 'em clean.

 

I have the same experience despite washing it every other week.

 

You're probably not pressing the accelerator all the way down enough times a day.

 

how many miles on your 05 mcs?

 

Mine are black and nasty very soon after any washing.

 

Mine are very dirty. I find soot all over the back end of the car.

 

The car only has 1400 miles and I just started to drive it hard at 1100 miles.

 

my MC's tip is all stained and nasty because of how rich the motor runs.

 

tips on my march build 2005 MCSa are clean at 4.5K. I have been suprised by that. I may need to look at the underside more carefully.

Steve

 

I don't get those little black things on the paint any more, but the lower part of the pipe is all dirty, pretty much all the time...

Matt

 

I have 3,400 miles and mine are clean.

 

For the entire 8,000 miles since my '05 was delivered they've gotten sooty. Furthermore, my son has followed me a few times and commented on dark "smoke" when accelerating. So clearly the car is running rich. I'm guessing that the most likely variables are: fuel and programming.

 

I am thinking Mini made a running change, my car has a 6/05 build date. I will be bring my car to Eric @ Helix shortly to do a pulley and GIAC software. He will have to look into it further as it may require an update to the GIAC code.
See this posting:
https://www.northamericanmotoring.co...293#post600293

 

Prior to my JCW upgrade my 2002 did get some, but not much, carbon showing on the exhaust tips. But after the JCW upgrade it never came back, my pipes are always clean now

 

I've had the JCW kit on my MC40 since new and the tips have always been clean.