Thread: The F20
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      04-24-2012, 10:16 AM   #12
dopper99
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Drives: C63 S Coupe
Join Date: Jun 2011
Location: UK

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On their website it says:

"BMW Mobility tyre sealing system - 12V compressor with integral sealant injection bottle and hose"

and then underneath

"Run-flat tyres"

Why do you need both?

Maybe they are encouranging you to ditch the run flats