VENTURA COUNTY
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1997 Mercedes-Benz S-Class
Key Replacement - Save vs Dealer in Ventura County

No Spare Needed | We Make Keys On-Site

Available
1997 Mercedes-Benz S-Class Remote Head Key
Remote Head Key

All keys lost is our specialty. While the dealer would require a tow and days of waiting, we arrive at your location and have a new key cut and programmed on the spot.

CA BSIS LICENSE LCO#6792
Zero Keys OK No Towing Made From Scratch
Fast Response15-25
min arrival
1,000+reviews
See why they skip the dealer113KSubscribers
1997 Mercedes-Benz S-Class lost key replacement options from EZ Car Keyz Ventura CA
Marco Levy • EZ Car Keyz 🔥
Licensed Mobile Locksmith • Oxnard, CA
15+
Yrs Exp
1997 Mercedes-Benz S-Class lost key replacement options from EZ Car Keyz Ventura CA
Key specialists
All Keys Lost?
We make new keys from scratch - no existing key needed
Fixed pricing
No Tow Required
We come to wherever the car is sitting
Fast mobile service
Emergency Service
Available 7 days a week, 6 AM to 11:30 PM
805 Special
10% OFFCODE:EZ-805-2026

🔥 Emergency key, plus 10% off 🔥

Applies to all-keys-lost situations
REDEEM (805) 790-8162

1997 Mercedes-Benz S-Class
Key Options

Dealer-grade key for a fair, honest price

Remote Head Key
Most popular Mercedes-Benz key typeMost Popular
1997 Mercedes-Benz S-Class Remote Head Key IYZ-3312
FCC IDIYZ-3312Part #5WK47283Buttons4BatteryCR2025Frequency315 MHzRemote StartNo
✓ In Stock · Programmed On-Site
1997 Mercedes-Benz S-Class replacement key fob with no original from EZ Car Keyz Ventura CA
Skip the Dealer Markup
Professional key, honest rate
1997 Mercedes-Benz S-Class replacement key fob with no original from EZ Car Keyz Ventura CA
🔧 PRO TIP
The 1997 S-Class (W140) runs the older infrared-based remote system, not the later Chrome Key or Smart Key setup. The EIS module on these is the first generation, sometimes called the DAS (Drive Authorization System) with a rolling code transponder in the key head. If the remote stops locking or unlocking but the car still starts fine, the infrared emitter in the key is the weak link. Swap the CR2025 first, but if that does not fix it, the IR LED itself may be burned out.
Related services: Ignition Repair · Smart Key

No Mercedes-Benz Key? See Your Best Option

No key? See which option gets you driving faster

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
All keys lost is no problem for us
Book Service (805) 790-8162

1997 Mercedes-Benz S-Class Remote Head Key Replacement - Fast, Affordable & Professional

Got a call from someone out near Ventura River Preserve in Ventura. A 1997 S-Class, the big W140 body, sitting in a gravel pull-off. Owner had one key left and it was acting up. The remote would not lock or unlock anything, and every few starts the immobilizer would hang for a second before releasing.

When I got there the car was just sitting in the shade looking like it weighed about two tons more than everything around it. The owner handed me the key and said, "The dealer told me they don't even work on these anymore."

I popped the key apart on my bench. The CR2025 was dead, which explained the remote. But the transponder side was the real concern. These W140 keys use the older DAS immobilizer with an IR transponder, and the antenna ring around the ignition column on this one had a corroded connector. Cleaned the pins, replaced the battery, tested the infrared signal with my receiver. Strong pulse.

Started it up, let it cycle through the DAS handshake without any hesitation. Locked and unlocked all four doors from 20 feet out. Opened the trunk with the remote.

The owner kept looking at the key like it was brand new. Same key, just actually working again. He had been quoted a full key replacement plus a tow into the dealer an hour away. Instead, I handled it in his parking spot in about 40 minutes for a fraction of what they wanted.

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

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

Get Pricing (805) 790-8162 Text Us
BSIS Licensed Locksmith - California License LCO#6792
BSIS Licensed
CA Bureau of Security & Investigative Services
NASTF Certified Automotive Locksmith - Vehicle Security Professional
NASTF Certified
National Automotive Service Task Force
Fully Insured Locksmith - Hiscox Liability and Vehicle Damage Coverage
Fully Insured
Liability & vehicle damage coverage
Google Guaranteed Locksmith - Verified and Background Checked
Google Guaranteed
Verified & backed by Google
Also serving: Casitas Springs · College · Downtown Ventura · East Ventura

Mercedes-Benz S-Class Rapid Response, Done Right

Rapid response in the field

Lost 1997 Mercedes-Benz S-Class key replacement by EZ Car Keyz in Ventura CA
Remote Head Key | Rapid On-Site Service
1997 Mercedes-Benz S-Class | Ventura County
Lost 1997 Mercedes-Benz S-Class key replacement by EZ Car Keyz in Ventura CA
1997 Mercedes-Benz S-Class Remote Head Key
1997 Mercedes-Benz S-Class
Remote Head Key | Rescue Key
Estimated arrival time to Ventura
Priority ETA
Rapid Arrival
Available Today
Service location Ventura
Ventura
Help Is Close
805 Area
Same-Day Keys (805) 790-8162

Real Emergency, Real Relief

Stranded drivers who found relief

G
Gordon H.
Dec 2020
★★★★★

“My son had an issue opening the driver door on his Honda Civic. I called on New Year's Day and expected a nightmare, but they arrived quickly and fixed the problem in about half an hour.”

Google Review
T
T Klein
May 2020
★★★★★

“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.”

Google Review
W
Winter K.
Dec 2025
★★★★★

“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.”

Google Review
Watch real savings, real jobs62KFollowers
Customer review after losing 1997 Mercedes-Benz S-Class key - EZ Car Keyz Ventura CA
“Real savings, real reviews.”
Customer review after losing 1997 Mercedes-Benz S-Class key - EZ Car Keyz Ventura CA
5.0 out of 5 - Based on Over 1,000 five-star Google reviews
Best Price (805) 790-8162

Mercedes-Benz S-Class Mobile Service FAQ

Real costs, no dealer surprises

I lost all my keys for my 1997 Mercedes-Benz S-Class. Can you still make a new one?
Yes. All-keys-lost on the W140 S-Class means reading the EIS (Electronic Ignition Switch) module and extracting the key data to cut a new mechanical blade and program the transponder into the DAS immobilizer. On these 1990s platforms the security is first-generation rolling code, not the later FBS3 or FBS4 server-based systems, so the whole job stays on site. No factory order from Germany, no towing to a dealer. I read the EIS, cut the key to the original profile (HU39 blade), program the transponder and the infrared remote, and test every function before I leave. Typically 45 minutes to an hour.
Do I need to tow my 1997 S-Class to the dealer if I have no keys?
How long does an all-keys-lost replacement take on the W140 S-Class?
My W140 key turns but the engine cranks and won't start. Is the immobilizer locking me out?
Can I buy a key blank online and have you just cut and program it?
Questions? Call (805) 790-8162

Mercedes-Benz S-Class Key Service Areas

All-keys-lost service in every city

📍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
Emergency 1997 Mercedes-Benz S-Class locksmith service area in Ventura County CA
Emergency 1997 Mercedes-Benz S-Class locksmith service area in Ventura County CA
Stranded in Ventura County? We respond fast

Emergency service available in all listed cities

SOS Call (805) 790-8162
Filmed on Location
Mercedes-Benz S-Class car key replacement video
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No Mercedes-Benz S-Class Key? We Start From Scratch

All keys gone? We handle it from scratch. No dealer tow, no week-long wait. Just call.

Lost your 1997 Mercedes-Benz S-Class key? Call EZ Car Keyz Ventura CA now
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Ventura County