Best Accessories for the BMW G20 3 Series
The accessories that actually earn their place on the current 3 Series — the ones that protect it, prep it for the run-flat reality, and make daily life better, not just clutter the cabin. Here's what we'd fit first, organized by what matters.
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What to fit first
Spend on protection before anything cosmetic — all-weather mats and a cargo liner keep a modern interior looking new and protect resale. Then the two G20-specific essentials: a dash cam, and a portable inflator, because the run-flat tyres mean there's no spare in the trunk. Everything after that is personal taste.
The Accessories, by Category
FAQ
What are the best accessories to buy first?
All-weather floor mats and a cargo liner to protect the interior, then a dash cam and a portable tire inflator. Those four cover protection, security and the run-flat/no-spare situation — the rest is down to preference.
Does the G20 come with a spare tyre?
No — like most modern BMWs it rides on run-flat tyres and carries no spare. That's exactly why a compact 12V inflator (and ideally a sealant kit) is one of the smartest things to keep in the trunk.
Doesn't the G20 already have wireless charging?
Most do have a wireless charging tray, yes. A phone mount is still useful if you want the phone up in your eyeline for navigation, or if your trim lacks the tray — just choose one that doesn't block the air vents.
Will accessories affect my warranty?
Non-invasive accessories — mats, liners, a dash cam, a phone mount — won't affect your warranty. Be more careful with anything that taps deeply into the electrical system or modifies the car; keep installs clean and reversible.
Do these fit the Touring (G21) too?
Most do, but cargo liners, mats and shades are body-specific — always confirm the listing covers your exact model (sedan or Touring) and model year before buying.
The Bottom Line
Protect first, personalize second. All-weather mats and a cargo liner keep a modern interior like new, a dash cam protects you, and a portable inflator covers the no-spare reality of the run-flats. Add a phone mount, LED lighting and a detailing kit to taste, and keep a scan tool handy for the electronics. For the deeper dives see our floor mats, detailing and scanner guides, and head back to the G20 hub.