1997 Mercedes-Benz S-Class
Key Replacement - Save vs Dealer in Ventura County
No Spare Needed | We Make Keys On-Site

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.

Emergency key, plus 10% off
1997 Mercedes-Benz S-Class
Key Options
Dealer-grade key for a fair, honest price
No Mercedes-Benz Key? See Your Best Option
No key? See which option gets you driving faster
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.
Mercedes-Benz S-Class Rapid Response, Done Right
Rapid response in the field
Real Emergency, Real Relief
Stranded drivers who found relief
“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.”
“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.”
Mercedes-Benz S-Class Mobile Service FAQ
Real costs, no dealer surprises
Mercedes-Benz S-Class Key Service Areas
All-keys-lost service in every city

Emergency service available in all listed cities





