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      08-25-2012, 01:49 AM   #7
John_01
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Drives: E90 325i, E82 135i
Join Date: Mar 2009
Location: Sydney, Australia

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Your air pressure is low. Especially the front. I'd recommend around 34 to 38PSI. There are many possibilities for where the air can leak. The most common is just your normal puncture / slow leak. A decent tyre shop should be able to sort it out.