BMW key replacement in Claremont

What do BMW owners in Claremont usually need?

BMW key trouble in Claremont usually lands in one of four places: you never made a spare, a smart fob has stopped being detected, a key is locked in the car, or every key is gone. Which one you're in matters, but so does the generation of your car, because BMW has changed its key systems several times.

Around the Claremont Colleges, much of the housing is off-campus student rentals, and cars sit at the curb outside shared houses. Keys get lent, dropped and forgotten there, and a BMW that came with two keys often ends up with one in daily use and no backup. It is the easiest time to make a spare and the hardest time to discover you need one.

Claremont Village merchants park near work for long stretches, and commuters leave cars at the Claremont Depot Metrolink park-and-ride until they return. A key left on the seat, or a fob coin cell that quits while the car sits, is a typical way those calls begin. If you only need a door opened, see our car lockout service in Claremont page.

Summers here are hot and dry, which does old rechargeable key batteries and brittle plastic shells no favors. And on a hillside driveway in Claraboya a lockout is still a lockout: the van comes to you, and the car stays where it is.

How does mobile BMW key service work at the curb?

Claremont is about 44 miles from our Westwood storefront, so we sort out most of the job on the phone before a van heads your way. Here is the sequence.

1. Call (213) 577-1366, any hour. Tell us the model, the year, the kind of key you have now, and whether any working key exists.
2. We place the car in a key generation. Model year alone is not enough, since BMW switched systems mid-run on several models, so we confirm by VIN.
3. We say plainly whether the job can be done at the curb, needs bench work on a module, or belongs to the dealer. If it is dealer-only, you hear that before anything else happens.
4. We ask for ID and proof the car is yours before cutting or programming a key.
5. At the car we cut the key or emergency blade, program it, and test everything: remote functions, door entry, starting, and the blade in the door lock.
6. We check the battery in your other keys while we're there.

Which BMW key generation does your car use?

BMW key systems run in clear generations. Knowing yours explains most of what follows.

• EWS era: through the mid-2000s, and through 2010 on the E83 X3. These cars use the ID44 (PCF7935) remote-head 'diamond' key.
• CAS era: begins with the 2002 E65 7-series and spreads through the 2004 E60 5-series, 2006 E90 3-series, 2007 E70 X5 and 2013-2015 E84 X1. The key is an ID46 (PCF7945/Hitag2) fob that slides into a dash slot, with a Start button. The CAS module comes in generations from CAS1 through CAS3+.
• F-chassis: the F01 7-series (2009), F10 5-series (2011), F25 X3 (2011), F30 3-series (2012), F15 X5 (2014) and F48 X1 (2016). These are true keyless smart fobs on the ID49 (PCF7953P, Hitag Pro) chip. The F01, F10 and F25 use CAS4/CAS4+ modules; the F30, F15 and F48 use FEM/BDC body modules.
• G-chassis: from the 2016 G11 7-series onward. These use the BDC2 body controller and the N5F-ID21A-family 434 MHz fob.
• Newest generations: the G70 7-series (2023), U11 X1 (2023), G60 5-series (2024) and G45 X3 (2025). These add Digital Key architecture, and there is no established aftermarket path yet.

What can be done for each era?

Here is the honest picture, era by era. In any of them, one working key makes everything simpler, and making an extra key while you still have one is far easier than recovering from none.

• EWS cars (through about 2006, and the X3 through 2010): routine specialist work. Keys are originated from the EWS module data on the bench, all keys lost included.
• CAS1 to CAS3+ cars (roughly 2002-2015 depending on model): documented OBD add-a-key and all-keys-lost procedures exist. Late CAS3+ firmware can need a flash downgrade first.
• CAS4/CAS4+ and FEM/BDC F-chassis cars (2009-2022 depending on model): advanced specialist jobs. Some tools work through the OBD port, others need bench module work. It is possible, but only with dedicated BMW equipment, so we confirm by VIN which route your car needs.
• G-chassis BDC2 cars (2016 onward): add-a-key is specialist-possible if you still have a working key. All keys lost is effectively dealer-only.
• G70, U11, G60 and G45: dealer-only for key work, period.

What if I've lost every BMW key?

All keys lost is where BMW ownership gets honest. On older cars it is manageable. On newer cars it is the dealer's territory, and we'd rather tell you that on the phone than at your curb.

EWS and CAS-era cars have documented all-keys-lost procedures, so those are jobs we can do as mobile work. F-chassis cars are advanced and depend on the module generation, so the VIN comes first.

G-chassis cars from 2016 are different. There is one advertised aftermarket route for all keys lost on these cars, but it locks the car against future dealer keys. That is a trade we won't make on your behalf, so we don't use it and we won't promise G-series all-keys-lost. The newest G70, U11, G60 and G45 cars are dealer-only for key work.

Dealer paths require proof of ownership, and BMW does not use the NASTF SDRM process the way domestic makes do, so have your registration and ID ready. The shock people feel on G-series lost-key jobs comes from how the car is built. For the wider picture, see lost car key replacement in Claremont.

Is it really the key? Problems that look like key failures

Before you pay for a new key, check whether the key is actually the problem. These look like key failures and often aren't:

• Dead rechargeable key batteries on 2000s EWS and slot-key cars. The remote dies, but the chip inside can still start the car, so you may not need a new key at all.
• Electronic steering-lock (ELV) failures on E-series slot-key cars. The lock is the problem, but it gets misdiagnosed as the key.
• Worn dash key slots and fobs that no longer hold a charge.
• Dead coin cells in F- and G-chassis smart fobs. The dash says the key isn't detected, yet the emergency blade still opens the door.
• Cracked key shells, broken flip hinges (seen on the E83) and worn buttons.
• Comfort Access door-handle sensor faults that get blamed on the key.

What affects the cost of a BMW key in Claremont?

We don't print numbers on a web page, because the honest range is wide. These are the things that move the cost:

• Key generation. An EWS key and a G-series fob are very different jobs.
• Add-a-key versus all keys lost. Having a working key usually makes the job simpler.
• Whether the work goes through the OBD port or needs bench module work, and whether the firmware needs a downgrade first.
• The key itself: a full fob, a remote-head key, or only a battery or replacement shell, which is often the lighter-cost fix.
• Whether the job is dealer-only, in which case our part may be getting you into the car and giving you straight advice.
• Hour and distance. Night, weekend and holiday calls, and the trip from Westwood to Claremont, are part of it.
• Having ID and proof of ownership ready, so nothing stalls on site.

Dealer or Wilshire Lock & Key: which is right for your BMW?

Fair is fair: for some BMWs the dealer is the right call. The newest G70, U11, G60 and G45 cars, and all keys lost on G-chassis cars, are dealer paths, and we will say so. Where we fit is the large middle: EWS cars, CAS-era cars, add-a-key work, battery and shell repairs, and many F-chassis jobs once the module is identified. We come to you, so the car doesn't have to be moved.

Wilshire Lock & Key has been in business since 1987. We run a storefront at 10740 Wilshire Blvd in Westwood plus mobile service vans, and the company that answers your call is the company that sends the van. There are no dispatch middlemen. David, the owner and lead technician, oversees the work.

California requires locksmith companies to hold a BSIS LCO license. Ask any locksmith for that number before they touch your car, us included, and check it with the state.

Where do we work in Claremont?

We serve all of Claremont, ZIP 91711: Claremont Village and Village West, the Claremont Colleges area, Claraboya, Padua Hills, the Russian Village District, Arbol Verde, Pilgrim Place, Towne Ranch and the North Claremont foothills.

The housing is a real mix: Victorian, craftsman and Spanish revival homes near the Village, mid-century tracts and custom homes, hillside houses in Claraboya, and faculty and student housing around the colleges. For a BMW owner that means cars parked in many different settings, and we come to wherever yours is, whether that is near California Botanic Garden, Claremont Hills Wilderness Park, Padua Hills Theatre, Pilgrim Place, The Webb Schools or the Depot.

Hot, dry summers and strong Santa Ana wind events are part of life in the foothills, and neither is a reason to stand beside a car with the key inside. We also handle home and storefront lock work, including period hardware in the Russian Village District; see Claremont locksmith services.

For the full picture of keys here, read car key replacement in Claremont. For other makes, start at car keys, see our BMW key overview, or contact us.

BMW models in our key guide

• All BMW keys
• 3 Series
• 5 Series
• 7 Series
• X1
• X3
• X5