2019 BMW 4 Series
Licensed Pro Key Service in Ventura County

Q: Do I need to tow my car to the dealer if I have no keys?

No. That is the standard advice on BMW forums, and it is the dealer solution, not the only solution. One E90 owner was told to call for a flatbed and tow it to the nearest BMW dealer because there was no other option. Towing adds time and money on top of a 500 to 800 dealer key bill, and then you still wait days for the VIN-ordered key to arrive. We come to wherever the vehicle is sitting and handle the entire AKL process on site, from module work and key generation to cutting and testing.

Q: How long does an all-keys-lost replacement take?

For CAS-equipped BMWs like E90, E60, and older X-series, the AKL process typically takes 1 to 2 hours on site. For FEM-equipped F-series BMWs, the module needs to come out for bench work, which brings total on-site time to roughly 2 to 3 hours. BMW dealers block similar shop time but owners report the total process stretching much longer once you add key ordering delays of days to weeks. We get it done in one visit at your location.

Q: What battery does the 2019 BMW 4 Series key fob use?

The 2019 BMW 4 Series uses a CR2032 battery. You can find them at most auto parts stores or pharmacies for a few dollars. When we make a replacement key, we always install a fresh battery so you are starting with a full charge. If your BMW fob is losing range or the comfort access stopped responding after a battery swap, the key may need to be re-synced to the vehicle, which is a quick procedure we can handle on site.

Q: Can you make a spare at the same time so I have two keys?

Yes, and we strongly recommend it. BMW CAS and FEM modules store multiple key slots, commonly up to 10 positions. During an AKL session we are already inside the module generating key data, so adding a second key during the same visit costs much less than a separate service call later. BMW forum members regularly say their biggest regret is not having a second key. One X3 owner advised negotiating a second key into any used BMW purchase because a spare will cost 500 to 700 later.

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2019 BMW 4 Series
Key Options

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Locked Out? Compare the Solutions

All keys lost - two very different solutions

EZ Car Keyz

Dealership

Average Cost

✓ $$

✕ $$$$

Location

✓ We come to you

✕ You drive there

Wait Time

✓ 20-45 min

✕ 2-5 days

Same-Day

✓ Yes

✕ Rarely

All Keys Lost

✓ No problem

✕ Tow required

OEM Quality

✓ Yes

EZ Car Keyz wins 5 out of 6

Lost all your keys? No tow truck needed

Rescue Me (805) 790-8162

2019 BMW 4 Series Smart key Replacement - Fast, Affordable & Professional

A customer at the VFW near Saticoy area told me he'd already paid another locksmith for a 2019 BMW 4 Series key that never started the car. The engine cranked but the immobilizer killed it immediately. The other locksmith blamed the CAS module and walked away.

The CAS was fine. The locksmith had skipped the ISN read from the DME. BMW requires the key, the CAS, and the DME to all share the same internal security number. Without that three-way match, the engine computer won't release fuel. It's not optional.

I used my HU92 Lishi to verify the blade cut, then connected through OBD. I read the CAS3 data, pulled the ISN, and reprogrammed the key with the complete security sync. His fob, FCC ID NBGIDGNG1, was a 4-button slot key. Engine start was clean on three consecutive tests. I showed him the IM608 screen confirming the ISN match between the CAS, DME, and key so he could see for himself that the three-way sync was complete.

He paid me 368. Dealer charges 662 for the same work. He'd already paid the first locksmith too, which was money gone. But I could make sure the job was done right this time.

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2019 BMW 4 Series

Smart key | Half the Dealer Cost

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Alexx C.

Dec 2025

★★★★★

“I needed a car key replacement in Hillcrest and EZ Car Keyz helped me immediately. The technician programmed a new smart key right next to my car and tested every function before leaving. Fast, friendly, and very professional.”

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Priscilla L.

May 2025

★★★★★

“I lost my Honda Passport key and called EZ Car Keyz. He came out and made a new key in under five minutes. Legendary service.”

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Mark F.

Feb 2024

★★★★★

“Needed a spare car key made and chose EZ Car Keyz based on their reviews. The reviews were right. They gave me the best price, responded quickly to all my questions, came to my workplace, cut the keys on site, and finished fast.”

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What to Do When You Lose Every BMW Key

What to expect when we arrive

I lost all my BMW keys. Can you still make a new one?▼

Yes. All-keys-lost is one of the most common calls we get on BMWs. We access your vehicle CAS or FEM module, read the security data, generate a new key file, cut a fresh blade, and hand you a fully working key. On CAS-equipped BMWs like E90, E60, and many X3 and X5 models, this is a well-established procedure. On FEM-equipped F-series BMWs, we remove the module and perform bench programming. No tow needed, no dealer visit, no weeks of waiting for a VIN-ordered key.

Do I need to tow my car to the dealer if I have no keys?▼

How long does an all-keys-lost replacement take?▼

What battery does the 2019 BMW 4 Series key fob use?▼

Can you make a spare at the same time so I have two keys?▼

Questions? Call (805) 790-8162