I don't have that problem so no solution is needed for me. I've had mine for about 5 months now with nearly 5000 miles. Maybe you should ask shenandoah1 about it.
Black CLA250 - Premium, Multimedia, Sport, Panorama roof, Bi-Xenon, Window Tinting (50%/35% Front/Rear), Carlsson C-Tronic.
Bridgestone Blizzak LM-60 RFT (Run Flats) mounted on 18x8 Anzio Turn Bright Silver wheels with TPMS sensors for winter driving.