We highly recommend you do so for at least the first year since you would be covered under the bumper-to-bumper warranty. That means most replacement parts and repairs are free, but only if you go through an authorized service center. It’s important you check with your local service center to see what services they offer, and what parts can be ordered online. While most parts can be ordered and sent directly to your home, some parts must be picked up in person from the service center. In addition, certain electrical components cannot be sold directly to the customer for safety reasons. Thus, some repairs, like installing new gearboxes and PC boards must be done by the service center.
Once your warranty expires, you can certainly choose to buy eligible replacement parts from other online sellers. The downside here is that you may not always be certain which part you need to buy, especially if it’s a part that’s specific to a particular model. There’s also no guarantee that you’re getting the correct part with many of these sellers, so it can be a bit risky. That’s why many parents continue to purchase from an authorized service center, where they can be sure of exactly what they’re getting.