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BMW Diesel Owners / Enthusiasts
Do you own a diesel powered BMW? Maybe a 335d or a BMW x35d? Come and talk about what makes your car great!

 
 
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Old 08-29-2012, 10:57 PM
firstbimmer firstbimmer is offline
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Location: North Bay, CA
 
Join Date: May 2006
Posts: 376
Mein Auto: 335d
DEF Usage?

Anyone experienced an increase in DEF usage after the EGR recall/reprogramming?

I am at 32K. My DEF warning never came on between oil changes at 13K and 26K. Both oil changes indicated on the sheet that they refilled the DEF.

That means I went 13K twice with no DEF warning. I just had my DEF warning come on 6K after my most recent oil change?!? That seems like a huge change in usage while my driving habits haven't changed.

I asked my SA to check the Passive tank because a warning this early could mean that the pump was clogged between the passive and active. He said there was nothing to indicate a need to check and that it was completely normal for the DEF to run out after 6K. I asked why I had lasted 13K the two previous times and he basically kept returning to the 'its totally normal" and "I have people come in all the time after that few miles."

I just find it highly unusual that my car would go 13K twice with no warning, and then only go 6K this time. From my perspective, either they lied on my sheet at the last oil change and didn't refill the DEF, or the pump isn't working between the active and passive tanks and the warning came on after the active tank was getting empty and the passive tank wasn't getting pumped over to refill. Is there anything I can do to have them check this pump while still under warranty? I don't want them to push me off for the next 16K miles and then have it fall on me out of warranty.

Ideas? Thanks!
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