From Varta manufacturing) is not usually written directly as clear numbers, but is encoded within the symbols printed or engraved on the battery body. Based on the symbols visible in the image, you can determine the date through the following methods: 1. Printed Symbols (VeDoc) The image shows the symbol 0133 18186 2812. In some Mercedes systems, the last or middle numbers may indicate the production date in a specific format (e.g., week and year), but the most accurate method for such batteries is: Serial Number: 10 to 12-digit codes often carry the date in the last 4 digits (month and year) in some models. 2. Engraving on Battery Terminals (Most Accurate) Mercedes and Varta often engrave four digits on the negative terminal of the battery (the metal protrusion). The first two digits represent the week, and the last two digits represent the year. (e.g., 2422 means the 24th week of 2022). 3. Laser Engraving on the Plastic Cover Look for a laser-engraved code (not printed) on the top cover of the battery, usually consisting of letters and numbers: The fourth letter indicates the year (e.g., 2 means 2022, 3 means 2023). The fifth and sixth letters indicate the month (each month has a specific code in the Varta system). 4. QR Code You can use your phone to scan the QR code on top of the battery (indicated in your selected area), as it may direct you to the exact production and warranty data for this specific battery. Tip: If you don't find the date clearly, it's best to check the metal terminals (lead ones) as the date is often engraved directly on them. Are there any engraved numbers on the battery terminals?