Thread: DEF
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      09-16-2011, 08:43 AM   #4
DnA Diesel
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Canada
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Drives: 09 335d Sport SGrey/Blk/Blk
Join Date: Dec 2009
Location: Ottawa, Canada

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Montr, the problem is that some dealers interpret the def refill only with scheduled service, so if the DEF requires refill outside of a servicing cycle, it's on the customer's on tab. Other dealers will top the car off until the next servicing period. When the DEF is serviced during a scheduled event, the DEF tanks are purged, and filled completely with new fluid, vice simply being topped off.

On my last servicing, I had been doing notably more city driving and did need to top off my DEF prior to the scheduled service.

Regards
D.
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2009 335d Sport - Space Grey, Gloss Black on Black Leather (pics)