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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 08-06-2014, 08:54 AM
zinn zinn is offline
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Location: Akron
 
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Mein Auto: 335d
335d carbon woes

Love to drive my 335d - but the cost of ownership is too much. I was just told by my BMW mechanic that the diesel particulate filter and two injectors will need to be replaced along with a carbon blowout of the system...cost is just over 5k!! Anybody have other options? Car has 127K and is a 2010 - I do a lot of highway driving. I guess I wouldn't be so disappointed if I hadn't had to pay for a bunch of sensor replacements and repairs. It seems every few months I am facing another 1k...when does it end??
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  #2  
Old 08-06-2014, 01:34 PM
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tim330i tim330i is offline
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Location: Boston
 
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Welcome to Bimmerfest! I've moved your question over to the E90 3 series forum, you'll get more help in here. Also check out our diesel forum, there might be threads about this specific issue in there as well.

Good luck,
Tim
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  #3  
Old 08-06-2014, 01:41 PM
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floydarogers floydarogers is offline
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Location: Renton, WA
 
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Mein Auto: 335d, 328d, Toyota T100
Quote:
Originally Posted by zinn View Post
Love to drive my 335d - but the cost of ownership is too much. I was just told by my BMW mechanic that the diesel particulate filter and two injectors will need to be replaced along with a carbon blowout of the system...cost is just over 5k!! Anybody have other options? Car has 127K and is a 2010 - I do a lot of highway driving. I guess I wouldn't be so disappointed if I hadn't had to pay for a bunch of sensor replacements and repairs. It seems every few months I am facing another 1k...when does it end??
There is extensive discussion of these sorts of problems in the diesel subforum.

The CBU is covered by the SIB (posted there, somewhere) and should cost ~$1200-$1500.
Injectors are $500 each (!!!)
The DPF is a $2500 part. Yours is the first that I've seen actually called out for replacement.

I would suggest a 2nd opinion, but you may be stuck with these repairs.
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Old 08-06-2014, 05:36 PM
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galahad05 galahad05 is offline
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A $2500 DPF...is there something special about this filter? Like, it's made out of rare metals or something?
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Old 08-06-2014, 05:39 PM
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galahad05 galahad05 is offline
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Oh, I did a quick google--it has catalysts and runs high temperatures. It's also puzzling why one would need replacing. Maybe cleaned out (aka run it hot), but not replaced.
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Old 08-06-2014, 06:05 PM
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need4speed need4speed is offline
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Quote:
Originally Posted by floydarogers View Post
there is extensive discussion of these sorts of problems in the diesel subforum.

The cbu is covered by the sib (posted there, somewhere) and should cost ~$1200-$1500.
Injectors are $500 each (!!!)
the dpf is a $2500 part. Yours is the first that i've seen actually called out for replacement.

i would suggest a 2nd opinion, but you may be stuck with these repairs.
+1
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  #7  
Old 08-06-2014, 06:06 PM
anE934fun anE934fun is offline
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127K miles is when things (like catalytic converters) can break. $2,500 seems to be the cost of entry on the DPF. Maybe find a unit off of a salvage car with lower miles?

Out of curiosity, how many miles has OP put on the car since they purchased it? Something tells me not a lot.
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Old 08-07-2014, 08:20 AM
zinn zinn is offline
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Thanks to all who replied. A bit of background - I bought the car with around 10k in mileage in late 2010 (dealership driven car). Had 4 sensors fail on it prior to hitting 36k (thankfully covered). At around 50k had costly sensor replacement associated with emission system fluid heating element - BMW paid for half the part, but the repair was still over 2k. After that, I had about a 30,000 mile run without my service engine light turning on - I felt like I was over the hump and feeling pretty good about the car - even though I had to replace brakes and tires (run flats are expensive). Once I hit around 80k it all went downhill with carbon buildup in the system, injectors and most recently the particulate filter. I finally had enough with the dealership and at the recommendation of a benz owner I began taking my car to a repair shop that only works on German cars. Struck up a great relationship with the service manager. With the latest DPF issue he said the following (paraphrasing): "Get rid of the car and do not buy another clean diesel. BMW and Volkswagen/Audi are making us a lot of money in repairs involving the diesel exhaust systems. They are great cars to drive, but they are as costly to maintain as a Ferrari." Needless to say, I have not repaired the car. Probably going to try and sell it/trade it in. Really disappointed in BMW engineering on this one. They can and should do better. Others should know about this before making a purchase.
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  #9  
Old 08-07-2014, 08:28 AM
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need4speed need4speed is offline
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I wouldn't own one w/o a warranty. It's too bad they are great cars, but they do have issues with the exhaust systems. N4S
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