Had the same thing over the summer, i was afraid they were gonna blame it on the eisenmann but it ended up being that a part needed to be replaced. I dont remember exactly what it was but definitely head over to your dealer, i remember my service advisor saying it was a good thing i wasn't afraid to bring it in.

 

So i got the increased emissions warning after starting up my car today..

Made an appt with the dealership to get it checked out...

Now im just worried because my software and my intake system are both Dinan so thats okay

But my exhaust system is ASR GEN2.... I really hope they dont blame it on that... could those be related issues?(Even though I have had the exhaust on for over 12k miles.....


I really hope they dont blame it on my exhaust!:grrrr:

If they blame it on the exhaust, they are just plain BS'ing you. It is impossible for our exhaust or any other manufacturer's, for that matter, to cause an increased emissions warning light. Usually this is caused by a malfunction of one of the many devices that have a direct correlation with fuel control and timing. The dealer should easily be able to figure this out once they scan the car.

 

Would this cause loss of power?

 

the emissions warning was due to a failed oxygen sensor

 

I also had the same problem but would this cause a loss of power.

 

my 2010 m6 with only 2300 miles just had this warning pop up yesterday...ughhh!!! i hope it's not a major problem..

 

Happened to me too, I was driving to Florida when it came up. Didn't slow the car down or anything. It was weird, it showed up then next morning when i turned the car off it went away, and came back up when I got back to NYC.
I took it to the dealer and the SA told me that the intake was just loose.

 

And my light just came back on too. It went away after a week and it just came back today. I have removed the charcoal filters a while back otherwise it is a stock 2006 m5. Looking at history from the dealer at 50k miles my car had the increased emission light on that was diagnosed to be an internal leak in oil pump and hose. Pump and upper oil line was replaced.And the next line says Replaced leaking Vanos high pressure hose and pump.
I have just noticed my pax side vanos is clicking louder than usual. Not sure if it is the one that was worked on...
Coincidence or not i had this sudden drop in oil level from 0.6 to 0.0l. To be on the safe side i added .7l and the new total is 1.0l ????
Another think that is hard to understand is that at 56k miles both cats were replaced with new ones?

But i will start by checking for a loose intake...

 

mine just came back on yesterday.. this is the 3rd time in less than 6 months that i've had this warning come on.. it is getting annoying!! and of course,, both times before i brought it in for the "fix"...

 

I had both sides go out one after the other during the first year of ownership on my 2010 M6. BMW replaced the O2 sensors (on the exhaust cats) under warranty. While the car reports possible loss of power, I could not tell any difference (even after they were replaced). Aftermarket exhaust only becomes an issue if you replace the headers/primary cats AFAIK. Most exhaust mods people do are section 3 (mufflers only) or sections 2 & 3 all of which are after the primary cats. So, unless you have removed the primary cats (in the header assembly), don't let BMW claim that your aftermarket exhaust is to blame. Good luck.

 

so now i am getting very frustrated and upset!! this is like the 4-5 time now that this code has popped up!! my m6 is less than 2 years old and has around 3500 miles on it!!
plus bought it brand new!!!
how annoying!!

 

Think it could be the gas cap?

 

i wish and hope it's that simple,, i've read that before, but evdrytime i've brought it in there are fault codes that show bad components that need to be replaced.. no code so far saying bad gas cap..

 

I got this warning last night as well as a check engine light. Just dropped my car off at the dealer. I have removed my charcoal filters. Does anyone know if the dealer could use this as a reason not to fix my problem?

 

No, they should fix it without regard to you missing charcoal filters.

The increased emission light is often because of the O2 sensor on the exhaust cat failing.

 

After I had my Esienmann installed I got the same warning (increased emission). It only stayed on for a day and I haven't seen it come back on since and it has been about 2 weeks. I think it could of been that because of the exhaust it was recognizing more back pressure but once it got used to the new exhaust I haven't seen it come up or had any problems.

Some thing you could try is disconnect your battery and leave it disconnected for about an hour.

I did this and the light still came back on when I started it up an hour later. The next day however when I started it up to go to work in the morning it was perfect, no warning. I pressed the check button and it said All Systems OK!

Hope this helps!

Anthony

 

Thank you so much for the reply, Mark. I feel much better now. I have read quite a few threads about this issue, but couldn't find a definitive answer about the charcoal filters. It seems that o2 sensors are the most common issue. I checked my gas cap twice, and I always fill up at the same Shell station with 93 so that shouldn't be an issue.

I will report back what the resolution is to my problem. Hope I get my car back for the weekend!

 

I guess with your screen name you won't be getting an exhaust upgrade with the catalytic converters removed. Otherwise your name would have to be "CatlessFan", ha ha.

Can't say for sure that "Increased Emissions" is the O2 sensor, but that happened (separately) to both my right and left sensors within the first year of ownership (of a new 2010). And we have seen posts by others with the same thing. So this is common. But that fault can be associated with other things too.

In any event, it is not a charcoal filter issue. The reason being that they are only installed on U.S. cars. Other countries don't even have charcoal filters. They are only there to pass a California emission test (and it is only a cold start issue). BMW decided not to have a 49 state version and an California version (which has been done in the past), so all U.S. S85 V10 cars are them even though legally most of us don't need them.

Besides, if your dealership gives a hard time (and they won't because they won't even open the airboxes), you can always offer to have them put the charcoal filters back in. And the fault won't go away, proving it was not the filters.

 

This message came up on my beast as well, It happened to me 3times and today is the 4th times that I got this message.
I don't want to think about it too much b/c it will drives me crazy
what I usually did is pour down Fuel System Cleaner when I am about to fill up my gas.
The message will go away after you drive for a couple miles.

 

Had this come up on my cousins E60 M5.

Have any of you pulled codes?

We were getting a Cylinder #3 misfire, and after a bunch of research on this site, we found out that it was the Ion Current Controller.

Got that swapped out and never had an issue since!

 

Just wanted to update with the resolution to my problem. The dealer performed a pressure/smoke test and couldn't find any leaks. I was told that the gas cap may not have been secured. The codes were cleared and haven't come back after about 150 miles of driving. Here is my invoice.

I also mentioned that my brakes make a harsh squeaking noise intermittently under moderate braking. I was told that they were fixed, but literally two minutes into my ride home they were squeaking again. Time to start researching this issue on the board.

Big thanks to everyone for the help. Mark, your posts were very informative and I got a good laugh out of the "catsfan" joke!

 

Comgrats nothing major. And at no cost

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Increased emissions. Fault code P2272.

This message came up on my beast as well. It happened to me 2times then I checked fault code with OBD2 scanner and Torque software, it shows “Fault code P2272. O2 sensor signal stuck lean. Bank2 Sensor 2”

I thought my pre cat O2 sensor need to be replaced. I replaced both bank pre cat O2 sensors last week.
However I got Emission increased light again today, also fault code was same P2272.<?xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com<img src=" /><o></o>
<o></o>
I have cleaned both MAF sensors with CRC MAF sensor cleaner today (It was not so dirty).
I hope this cleaning eliminate this problem,.
<o></o>
So far Fault code does not show up yet, but Torque still showing O2 sensor voltage (I believe “O2 1X2 V” and “O2 2x2V” are pre cat O2 sensor output voltage) bank 1 and bank 2 are not equal and not synchronized.
I think I will see increased emission warning soon again.
<o></o>
<o></o>
I would like to know your opinion about this problem.<o></o>
My M5 is 2008model, only 19,000miles, no modification.
<o></o>
<o></o>
Thank you for your help.<o></o>

 

Katsu, bank 2 sensor 2 is left side post cat sensor.


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I had this problem also.
First visit to dealer, they reset the fault code, did a test drive and it came back.
Then they asked me to sign a authorization for a test drive that could be up to 200 miles.
So they reset the fault then test drove it and the fault did not return.

2 months later the fault returned.
Car was:32,000 miles and 7yrs - 10months old (emissions warranty is 8yrs/80k miles)
Second dealer visit showed bad cats!
3 weeks to order cats from Germany and one week to install.
UNDER WARRANTY &#55357;&#56861;, would have cost 15,000 &#55357;&#56833;

 

jcolley, rawone,
<?xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com<img src=" /><o></o>
Thank you for your response.

You are right, sensor2 was post cat sensor. I think I should have replaced post cat sensor first.

I checked fault log again to think about why I have replaced pre cat sensor at this time.
It showed Logged fault code”P114d, P2272” and Pending fault code”P2272, P2197”.
Fault code P2197 is Bank 2 sensor 1(pre cat sensor)signal stuck lean.
I thought pre cat sensor problem affecting post cat sensor since both sensor failing. <o></o>
<o></o>
I also reviewed warranty book. It seems like cat is covered 8yrs/80k miles warranty. It is good news for me!
But o2 sensor warranty period is only 2yrs warranty/24k miles.<o></o>
So I think I should try to replace post cat o2 sensor next. If it does not solve this problem I should visit to dealership.<o></o>
<o></o>
If you have any suggestion, please.<o></o>
<o></o>
Thank you.<o></o>

 

Looks like I'm joining this club. I haven't even been in the car that long. Second tank of gas to be precise. I got the light when I first took possession of the car, but it went away. I wrote it off to the dealer filling the tank with 89 octane gas. I drove it until the take was nearly empty so I could fill it up with good gas.

Now, the check engine / service engine soon / increased emissions light is back on. The thing I've noticed is that it seems to come on at 1/2 a tank of gas... not sure if that is actually related to anything or just a coincidence.

Any harm in driving the car this weekend? I'll take to the dealership to fix on Monday.

 

Same issue with my 2010 M6

For me, it ended up being a bad temperature sensor and thermostat in the radiator system. They are replacing both the sensor and thermostat. As a result, it is also getting a flush and new radiator fluid.

 

So I guess I get to join the Increased Emissions Fault club today.

Mileage: 49,300 miles (20,500 of them mine).
Ownership Period: 4 years and 30 days (which happens to be 30 days past the expiry date of my extended warranty).

For those of you that have had this message in the past, can you state your repair method and cost?

The m5 I purchased came with a set of Eisenmann sport headers installed. The stock set was in the trunk. Think this could be the solution to my fault?

From most of the reading I've done, it seems that the most likely culprit should be the o2 sensor.

Whoops, just realized I posted this on the e63 portion of the board. I guess it still applies since we share the engine!