[{Id:1,Car:{CarTypes:[{type:"chevrolet",color:"blue"},{type:"nissan",color:"blue"},{type:"hyundai",color:"blue"}],Locked:true}}]

db.collection.update({},[{$set:{"Car.CarTypes":{$filter:{input:"$Car.CarTypes",cond:{$ne:["$$this.type","nissan"]}}}}}])