Whisk mayonnaise, olive oil, lime juice, apple cider vinegar, mustard, chopped dill, sugar, chilies, garlic and celery seeds in medium bowl to blend.
Toss cabbage and carrots in large bowl with enough dressing to coat. Season to taste with salt and pepper. (Coleslaw can be prepared ahead. Let stand at room temperature up to 1 hour or cover and refrigerate up to 4 hours.) Serve cold or at room temperature.