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How to Duplicate a Mercedes-Benz Car Key?

4 Answers
JoelDella
09/01/25 2:40am

Mercedes-Benz car keys can be duplicated at 4S dealerships or auto parts markets. Here is some information about Mercedes-Benz: 1. Since 1900, Mercedes-Benz has created numerous world firsts, including: the first supercharged car, the first mass-produced diesel passenger car, the first mass-produced car equipped with a four-stroke fuel injection engine, the first five-cylinder engine, and more. 2. The products Mercedes-Benz sells in China include: A-Class sedans, B-Class sedans, E-Class long-wheelbase sedans, S-Class sedans, CLS-Class sports sedans, CLS-Class shooting brakes, C-Class station wagons, B-Class sports tourers, and other models.

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MacPaisley
09/13/25 5:36am

I just helped a friend with this matter, and matching a Mercedes key is nothing like doing it for a regular car. First, you need to prepare documents like the vehicle registration certificate and ID to prove you're the owner, otherwise the dealership won't even consider it. Second, you must identify the key type—smart keys with keyless entry are the most troublesome. I recommend going directly to an authorized Mercedes dealership, as they need to use specialized diagnostic equipment connected to the OBD port for the matching process. The cost is indeed painful, with basic models starting around three thousand yuan, and AMG series being even more expensive. The entire process takes about two to three days, as they need to retrieve security codes from Germany. Never try to save money by going to unlicensed shops—last time someone did that, they ended up crashing the car's locking system and had to spend even more to reinstall everything.

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DeCaden
10/27/25 6:21am

As a seasoned driver, I must remind you that getting a Mercedes key replacement must follow the official procedure. First, visit the dealership to verify the VIN and register. They'll provide you with a new key blank. The most critical step is chip programming—the technician must use Mercedes' original Star diagnostic tool to read the engine ECU data and synchronize the immobilizer system with the new key. Costs vary by model; my E-Class cost ¥2,800, including the new key housing and labor. If your old key still works, they can simply add a new one. If all keys are lost, it's far more troublesome—requiring replacement of all door locks at double the cost, plus waiting for parts shipped from Germany. The entire process took me a full 48 hours.

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StKeira
12/10/25 6:37am

Just last week, I accompanied a colleague to handle this matter, and the Mercedes key matching process is truly professional. First, you need to bring the original car purchase invoice and ID card to the dealership for registration—they verify the vehicle information to prevent theft. The matching process was quite interesting: the technician first used a computer to read the engine immobilizer code, then placed the new key in the induction area under the steering wheel to sync the data. I counted a total of six matching procedures, even the key battery required special activation. Price-wise, it’s certainly not cheap—the key shell with the three-pointed star logo alone costs 800, and the programming service fee was over 2,000. In total, it came to nearly 4,000, but the peace of mind from having a brand-new key is worth the price.

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