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2012 Mercedes-Benz E-Class
Key Replacement - Save vs Dealer in Ventura County

Trusted by 1,000+ Drivers

Available
2012 Mercedes-Benz E-Class Remote Head Key
Remote Head Key

With over 1,000 verified Google reviews and every major industry certification, EZ Car Keyz is the locksmith trusted by families, businesses, and fleet managers throughout the area.

CA BSIS LICENSE LCO#6792
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Fast Response15-25
min arrival
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Fast 2012 Mercedes-Benz E-Class key replacement quote from EZ Car Keyz Camarillo CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
Fast 2012 Mercedes-Benz E-Class key replacement quote from EZ Car Keyz Camarillo CA
Key specialists
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Over 10,000 keys made across the region
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2012 Mercedes-Benz E-Class
Key Options

Dealer-grade key for a fair, honest price

Remote Head Key
Most popular Mercedes-Benz key typeMost Popular
2012 Mercedes-Benz E-Class Remote Head Key IYZ-3312
FCC IDIYZ-3312Part #5WK47283Buttons4BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
Same-day 2012 Mercedes-Benz E-Class key fob replacement from EZ Car Keyz Camarillo CA
Skip the Dealer Markup
Professional key, honest rate
Same-day 2012 Mercedes-Benz E-Class key fob replacement from EZ Car Keyz Camarillo CA
🔧 PRO TIP
The 2012 E-Class W212 uses the EIS/EZS electronic ignition switch (part number range A212 905 xx xx) paired with an NEC-based processor. These keys run on the Mercedes infrared plus rolling code protocol, not just a simple transponder chip. If your remote head key (FCC ID IYZ-3312, part 5WK47283) starts acting flaky, swap the CR2025 first, but know that a weak battery on these can throw a "Key Not Recognized" message on the dash and kill the remote range entirely. The infrared emitter in the key blade housing drains that cell faster than you'd think.
Related services: Ignition Repair · Smart Key

Verified Pro vs Dealer Process

Licensed pro vs dealer process - you choose

EZ Car Keyz
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
✓ Yes
EZ Car Keyz wins 5 out of 6
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Book Service (805) 790-8162

2012 Mercedes-Benz E-Class Remote Head Key Replacement - Fast, Affordable & Professional

Got a call from a guy in Springville Park, Camarillo. His 2012 E350 wouldn't turn over. Dash just showed "Key Not Recognized" and sat there.

He told me on the phone the key had fallen off a counter onto tile floor a few days back. Worked fine after that, then started getting intermittent no-starts. By the time he called me, it was dead in the driveway. Dealer told him to tow it in. Two-week wait for a Xentry diagnostic appointment, plus the key order.

I pulled up and checked the key first. The housing on the 5WK47283 had a hairline crack along the seam near the battery door. When I opened it, the infrared board had shifted just enough that the IR emitter was misaligned with its window in the blade housing. The NEC chip was fine. The CR2025 tested at 2.9 volts, plenty of life.

I transplanted the full board assembly into a new housing, recut the HU64 blade by decoding his door cylinder right there, and tested the infrared handshake with the EIS module. All four buttons worked. Remote lock, unlock, trunk, panic. Clean start on the first turn.

He stood there watching me work on the hood of his car for about twenty minutes. When it fired up, he just nodded slowly, like he was doing math on the two weeks and the tow bill he almost paid.

Whole thing done on site in Springville Park for a fraction of what the dealer route would have cost.

Save vs the Dealer on Your Mercedes-Benz E-Class Key

Get your key for hundreds less than the dealer. Same quality, same result, better price.

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BSIS Licensed Locksmith - California License LCO#6792
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Also serving: Camarillo Heights · Camarillo Old Town · Camarillo Outlets · Camarillo Springs

Mercedes-Benz E-Class Rapid Response, Done Right

Rapid response in the field

Same-day 2012 Mercedes-Benz E-Class key replacement in Camarillo CA
Remote Head Key | Rapid On-Site Service
2012 Mercedes-Benz E-Class | Ventura County
Same-day 2012 Mercedes-Benz E-Class key replacement in Camarillo CA
2012 Mercedes-Benz E-Class Remote Head Key
2012 Mercedes-Benz E-Class
Remote Head Key | Pro Grade Service
Estimated arrival time to Camarillo
Proven Timing
Rapid Arrival
Available Today
Service location Camarillo
Camarillo
Insured Service
805 Area
Same-Day Keys (805) 790-8162

Certified and Five-Star Rated

Credentials confirmed by real drivers

T
Tommy M.
Dec 2023
★★★★★

“Tim went above and beyond. I struggled all day trying to program a new FOB and nothing worked. Tim helped me patiently, even recommending cheaper options since I was on a tight budget. He eventually came all the way to Ojai late at night and fixed everything.”

Yelp Review
A
Alexx C.
Dec 2025
★★★★★

“My key fob stopped working while I was at Oxnard Harbor and I thought I was going to need a tow. EZ Car Keyz showed up fast, programmed a new fob, checked everything carefully, and made sure the car was fully functional before leaving.”

Google Review
M
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.”

Yelp Review
Watch real savings, real jobs62KFollowers
Fast 2012 Mercedes-Benz E-Class key replacement review - EZ Car Keyz Camarillo CA
“Real savings, real reviews.”
Fast 2012 Mercedes-Benz E-Class key replacement review - EZ Car Keyz Camarillo CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Mercedes-Benz E-Class Mobile Service FAQ

Real costs, no dealer surprises

How much does a 2012 Mercedes-Benz E-Class key replacement cost?
We don't post pricing online because the job can vary, but I'll tell you this: it's way less than what the dealer charges. Mercedes dealers typically quote the key fob part, the emergency blade, a Xentry diagnostic session, and programming labor all as separate line items. That adds up fast. When you call us, the number I give you on the phone covers everything: the key blank, cutting the HU64 blade, programming to your EIS module, syncing remote and infrared functions, and testing. One price, no surprises, done at your location in Camarillo.
Is a locksmith actually cheaper than the Mercedes-Benz dealer for key replacement?
Does the price include cutting, programming, and coming to my location?
My 2012 E-Class shows "Steering Lock Defective" and won't start. Is that the key?
I lost all my keys for my 2012 E-Class. Can you still make one?
Questions? Call (805) 790-8162

Mercedes-Benz E-Class Key Service Areas

Proven service in your area

📍Ventura County & SB
Ventura County service area map
805 LOCAL LOCKSMITH
need a key? 🔑
Santa Barbara
Santa BarbaraETA 30-35 min
Goleta
GoletaETA 30-35 min
Isla Vista
Isla VistaETA 30-35 min
Montecito
MontecitoETA 25-30 min
Carpinteria
CarpinteriaETA 20-25 min
Ojai
OjaiETA 20-25 min
Ventura
VenturaETA 10-15 min
Santa Paula
Santa PaulaETA 20-25 min
Fillmore
FillmoreETA 25-30 min
Oxnard
OxnardETA 10-15 min
Port Hueneme
Port HuenemeETA 10-15 min
Camarillo
CamarilloETA 15-20 min
Moorpark
MoorparkETA 25-30 min
Simi Valley
Simi ValleyETA 30-35 min
Thousand Oaks
Thousand OaksETA 20-25 min
Santa BarbaraGoletaMontecitoCarpinteriaOjaiVenturaSanta PaulaFillmoreOxnardPort HuenemeCamarilloMoorparkSimi ValleyThousand Oaks
Same-day 2012 Mercedes-Benz E-Class locksmith service area in Ventura County CA
Same-day 2012 Mercedes-Benz E-Class locksmith service area in Ventura County CA
Stranded in Ventura County? We respond fast

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Mercedes-Benz E-Class car key replacement video
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2012 Mercedes-Benz E-Class Key by Licensed Pros

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