Last post on Oct 06, 2013 at 7:40 PM
You are in the BMW 3-Series
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BMW 3 Series, Future Vehicle, Sedan
#38 of 50 Black Tailpipes
Aug 11, 2013 (1:50 pm)
My 2013 335i has very black soot in the exhaust pipes discharge openings. it looks like it is burning rich. The dealer service says its ok. They say the car has four emission sensors and if anything was wrong I would get a service error and notification. They tell me the BMW Emissions are rated super above other cars and Govt. regulations. I asked what causes it and I am told they are all like that. However they cant give me a reason why.
Does anyone else have this occurance, is it a problem? what causes it. Thanks. Looking forward to a reasonable and technical explanation.
#39 of 50 Re: Black Tailpipes [fourthbmw]
Aug 13, 2013 (1:27 am)
Can the host help me with this request on Black Exhaust residue. It looks like not many posts are in the F30 topic forum. Any suggestions.
#40 of 50 Re: Black Tailpipes [fourthbmw]
Aug 13, 2013 (3:26 am)
Back in the days before OBD-II when most engines were carburated, black soot on the inside of the exhaust pipes was usually an indication that the engine was running rich (too much fuel).
However, nowadays engines and the emissions control system are designed to work right at the stoichiometric air-fuel ratio, ~14.7:1 IIRC. Overly rich air-fuel mixtures are especially bad and can lead to overheating of and damage to the catalytic converter. So any deviation from that ideal air-fuel ratio (and many other things) will cause the OBD-II system to detect a fault and (probably) turn on the CEL and set the appropriate code.
So, I do know why your '325 has a dark residue on the exhaust pipe. But, I would not be concerned about it so long as the car is running OK, your fuel economy is where it should be, and the CEL is off.
#41 of 50 Re: Black Tailpipes [srs_49]
by Kirstie@Edmunds HOST
Aug 13, 2013 (9:26 am)
Seems like a good answer! If more opinions are desired, you might post in our Answers section:
If you post there, return to that link and click "my answers profile" to check for feedback.
#42 of 50 Radio Question
Sep 11, 2013 (5:36 am)
I have the 2013 320i, previously had a 2011 328i which I miss driving. The new one just doesn't feel as connected to the road.
Anyway, the reason for this post, does anyone know of a way to change the satellite radio display to show the station, song and artist information when it is in the "Presets" mode? I know I can see all of that info when it is in "satellite" and showing all stations but I only listen to a few stations so I'd rather only display the preset stations. Any ideas/suggestions?
#43 of 50 328 Diesel
Sep 23, 2013 (3:44 pm)
Just test drove a 328D X-Drive today. I currently drive a 2007 328XI. The diesel has was a very nice drive. Peppy off the line, handles very well and given an EPA of 43 on the highway(diesels typically do better than EPA highway estimates!) seems like a very good compromise. A slight diesel clatter but honestly not much worse than the current 328i. Considering the car doesn't even include xenons quiet pricey at almost $50K with Cold Weather, Premium and Technology packages.
#44 of 50 Re: 328 Diesel [idoc2]
Sep 23, 2013 (7:12 pm)
Where did you test the 328d X-drive ? What is the price for the RWD 328d and how many 328d do you see at that dealership ? I'm interested in the 328d and just want the simple on without all the bells and whistles.
#45 of 50 Re: 328 Diesel [dtd98]
Oct 03, 2013 (5:41 pm)
I test drove the 328D at BMW of North Haven (CT). They only had one diesel 3 series at this fairly large dealership. Dealers don't typically stock many RWD 3 series sedans in this part of the country and frankly I didn't ask if they had any. I would go to the BMW website and there you will be able to come up with the list price of the car you want - I would expect a dealer might take a couple thousand off that price.
#46 of 50 Re: 328 Diesel [idoc2]
Oct 04, 2013 (5:16 am)
Thank you idoc2. I'm from San Jose, CA. I have not checked with my local BMW dealers yet. Since, I still wait for the next MB C class diesel to debut. I would like to get your impression when you test dove the 3er diesel and what is the fair price that you would pay for. Modern diesel car is one of the criteria that I'm looking for in my next car.
#47 of 50 Re: 328 Diesel [dtd98]
Oct 05, 2013 (3:33 am)
Honestly I think you have to test drive the 328 diesel for yourself to decide if the compromise between sportiness and fuel economy is worth it for YOU. I currently own a last generation(2007) 328Xi, I have also test driven the new 328i with X-drive(see my comments above). The diesel is not as silky smooth as my current I-6 328 and not as sporty as either car. But for me the acceleration was adequate and the driving dynamics of the chassis was exactly what you'd expect in any 3er. IMO the huge fuel efficiency gain is worth the trade-off in sportiness of the drive train. On the other hand there are several things about the 3 series I do not like. I hate the run flat tires(which are on my current car), I think the new electronic shifter for the automatic tranny is very non-intuitive and at times confusing. I very much dislike the automatic on/off feature which turns the car off when at a stop light or in heavy traffic, then car restarts with a shudder. For these reasons I have not yet bought a new 328D or 328i. I test drove the new Audi A6 diesel which was fabulous but about $9,000 more. I am in no rush and await an A4 diesel and the MB C series diesel. I suggest yo drive the 328D and see what you think.