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      11-13-2019, 01:12 AM   #1
adrianbx
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Drives: Z4 35i sDrive
Join Date: Aug 2019
Location: Malta (EU)

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Do I need new coils / spark plugs??

My ignition gauge in a 2013 E89 Z4 35i ranges from - 1to 10 and car runs slightly rough on idle especially when cold started. Do you guys think I need new coils / spark plugs? I currently have a 2017 Bosch coils as for sparks I haven't checked