It's a known problem, version 27.1 will sort it out for you. The dealers are reluctant to automatically apply the software updates due to the time it takes and also sometimes fails and needs to be done again.

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Fastbuck
2009 F01 7 Series 3.0D SE Saphire Black/ Oyster
2008 E83 X3 2.0D SE Montego Blue/ Black
2007 E70 X5 3.0D SE Space Grey/ Beige - SOLD
2006 Land Rover Freelander Sport TD4 Zambezi Silver/Black - SOLD
2005 W203 C200K Sports Coupe Jasper Blue/Artico Black - SOLD
2004 W211 E320 CDI Avantgarde Brilliant Silver/Alpaca Grey - SOLD
2001 E39 530i SE Crystal Green/ Beige - SOLD