2012 BMW 5 Series
Key Replacement - Save vs Dealer in Ventura County
Background Checked | Fully Bonded

Not all locksmiths are created equal. EZ Car Keyz is BBB A+ rated, fully licensed and insured, and trusted by thousands of customers across the area. Your vehicle is in good hands.

1,000+ reviews, save on yours
2012 BMW 5 Series
Key Options
Dealer-grade key for a fair, honest price
BMW Key Credentials Side by Side
Who has the better track record?
2012 BMW 5 Series Emergency Key Replacement - Fast, Affordable & Professional
Got a call from a woman near Miramar Beach in Montecito. She was standing outside her 2012 BMW 528i in the Trader Joe's lot holding the little emergency blade like it was supposed to do something more than unlock the door.
Her Comfort Access fob had quit completely. She used the HU92 insert key to get the driver door open, but then sat there with a dashboard that would not respond to the start button. The car just kept flashing "No key detected" on the iDrive screen. She had already called the dealer. They told her to tow the car in. Multi-day wait for a replacement fob, and the quote made her go quiet on the phone.
Her neighbor had used me before and passed my number along.
I pulled up with my Smart Pro and went to work on the CAS4 module through the OBD port. Her car had the KR55WK49863 fob with the ID49 crypto chip. The CAS4 ISN extraction took a few extra minutes because these are Hitag Pro transponders and the security handshake has a longer sequence than older CAS3 systems. Cut the new HU92 emergency insert, programmed the replacement fob, tested Comfort Access on all four doors, trunk button, and push start.
About 40 minutes total. She watched from the passenger side, arms crossed, not saying much until the engine turned over. Then she just nodded, like the car had finally agreed with her.
Way less than the dealer wanted. No tow truck involved.
Save vs the Dealer on Your BMW 5 Series Key
Get your key for hundreds less than the dealer. Same quality, same result, better price.
BMW 5 Series Rapid Response, Done Right
Rapid response in the field
Proven by 1,000+ BMW Customers
Proven by reviews, backed by licenses
“I needed a second key made for my 2012 Nissan Altima. They arrived quickly, finished in about 15 minutes, and gave me the best price I could find.”
“I lost my key and called EZ Car Keyz. Marco was great. He arrived quickly, explained everything clearly, and kept me informed throughout the entire process. The service was fast, professional, and fairly priced.”
“He arrived within 30 minutes and had everything finished in another 30 minutes for two cars. Everything was programmed and tested perfectly. Cheapest price in town and very honest service.”
BMW 5 Series Key Service Areas
Verified and rated across the county

Licensed and insured across all service areas





