hello i have a 2008 mini cooper r56. i am stuck in limp mode, used a bmw/mini scanner and get fault codes:28B4 SME:Valvetronic servomotor, sluggish movement. i changed spark plugs, did replace a bad coil, cleaned both solenoids,oil looks clean...i am stuck not sure what else to do..any advice would be much appreciated. thank you.
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MINI Cooper R56 Valvetronic Faults (2007-2011) | Pelican Parts DIY Maintenance Article