BMW M340i G20 key replacement costs vary depending on the key type, security system, and whether you need a standard key, smart key, or comfort access key fob. Standard transponder keys typically range from $150-$350, while smart/comfort access keys range from $300-$600. Contact SA Locksmith at (210) 348-3677 for an exact quote for your specific BMW M340i G20.

Yes! SA Locksmith provides fully mobile key programming service for all BMW M340i G20 models. Our technicians come directly to your location in San Antonio equipped with professional-grade diagnostic tools to cut and program your new key on the spot. No towing to the dealership required.

We handle all-keys-lost situations for BMW M340i G20 vehicles. Our technicians can access the vehicle, read the immobilizer data from the security module (EWS, CAS, FEM, or BDC depending on your generation), generate new keys, and program them to your vehicle — all on-site. This includes erasing lost keys from the system for your security.

Absolutely. SA Locksmith offers 24/7 emergency lockout service for all BMW M340i G20 models throughout San Antonio and surrounding areas. Our average response time is 20-30 minutes. Call (210) 348-3677 any time — day or night — and we’ll dispatch a technician immediately.

Most BMW M340i G20 key replacements are completed in 30-60 minutes on-site. The exact time depends on the security system generation and whether we need to perform a full all-keys-lost procedure. Smart key programming with comfort access may take slightly longer. We’ll give you a time estimate when you call.