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      12-05-2011, 02:51 PM   #4
BMWNTHZST
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Drives: 2015 F80 M3
Join Date: Jan 2009
Location: Toronto

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Garage List
2011 BMW E93 M3  [0.00]
2004 BMW M3  [9.50]
2015 BMW F80 M3  [0.00]
1997 BMW 840CI  [9.50]
2011 BMW X5 M  [10.00]
2008 BMW 335i Conve ...  [8.40]
Warming up the engine
During the warm-up phase, the high-performance V8 engine runs a little more roughly due to its emissions control system.

For technical reasons, the exhaust systems sounds slightly metallic when the engine is cold.

This information can be found in your manual on page 121
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