I own 220i with ZF 8hp (and bootmod3 tune) 43k km When I come to a stop and press parking, it's all smooth and fine but if i keep pressing the brakes, move to Drive and back to Parking (with out moving the car) there is a strong movement of the car/transmission. The transmission is working normal, although more aggressive at S with the tune vs without it. Is this behaviour normal?
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