Why does my key fob work intermittently or only close to the car?

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Short Answer: Weak battery, dead solder joint inside the fob, or antenna issue in the car.

Detailed: Key fob range is typically 10–30 meters. Reduced range means:

  • Fob battery low (CR2032 or CR2025 — replace every 2–3 years)

  • Dirty contacts inside fob (clean with isopropyl alcohol)

  • Cracked solder joints on the battery contacts (common in VW/Audi fobs)

  • Vehicle receiver antenna damaged (often behind the rearview mirror or in the headliner)

  • Aftermarket window tint containing metal (blocks RF signals)

Test: Try the spare key fob. If it works fine — your main fob is bad. If both have short range — the car's receiver is the problem.

Re-sync procedure: Most fobs can be resynchronized by pressing the lock button 5–10 times rapidly while standing near the car.

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