Where is the VIN number in Mercedes-Benz Klasa A (W177 [2018-2021])?

This guide covers the VIN (chassis number) locations on the Mercedes-Benz A-Class W177, produced between 2018–2021, including the easiest label to scan and the more “official” stamped chassis number in the engine bay.

Chassis Number Locations

B-Pillar / Door Jamb VIN Sticker (Right Side)

• Where to look: A black manufacturer label on the right-side B-pillar, near the door latch area, showing the VIN and weight ratings.
• Access: Easy—open the right front door and look at the lower B-pillar area; it’s flat and high-contrast (white text on black).
• Note: This is described on the right side; keep that orientation (don’t assume “driver side”). On LHD cars, this is typically the passenger side.
• Tip: Because it’s clean and flat, you can scan the sticker instantly with your phone to avoid misreading characters like B/8 or O/0.

Engine Bay (Stamped Chassis Number on Firewall/Crossmember)

• Where to look: Stamped directly into the metal at the rear of the engine bay on the firewall/crossmember, slightly to the right of center when you’re facing the engine—hidden under a plastic trim strip/weather seal.
• Access: Open the hood, then locate the plastic cowl at the base of the windshield. Find the small rectangular cutout/flap in the trim and lift it up to expose the stamped VIN.
• Note: This is the “harder to find” physical chassis stamp (and the one you’ll want to match against the sticker/windshield VIN when checking the car).
• Tip: The stamp is often dark/low-contrast and angled—use ScanVin.app’s camera scan in High Contrast AI Mode (and a flashlight) to pull the characters out of the shadows.

Windshield VIN Plate (Bottom Corner)

• Where to look: At the bottom corner of the windshield on the left side of the vehicle (driver’s side on LHD), visible through the glass.
• Access: Easy to see from outside, but reflections and glare can make it annoying to read.
• Note: Best for quick checks in parking lots, but still verify it matches the sticker and the engine-bay stamp.
• Tip: If glare from the sun/dash washes it out, capture it with your phone using the VIN scanner instead of squinting and copying it by hand.

OBD / Diagnostics (Digital VIN via OBD-II or Vehicle Menu)

• Where to look: The VIN can be read digitally through the OBD-II port with a scanner, and may also be accessible through vehicle/MBUX service information menus depending on equipment/software.
• Access: Moderate—requires the car powered on and either an OBD tool or menu navigation.
• Note: Digital VIN is useful for cross-checking, but for identity/anti-tamper checks you still want to match the physical VIN locations.
• Tip: If you’re comparing multiple sources quickly, scan the physical VIN with your phone so you’re not stuck typing a 17-character code in the cabin.

Video Guide

Video Tutorial: MERCEDES BENZ A200 (W177) VIN LOCATION / CHASSIS NUMBER LOCATION & M282 ENGINE NUMBER LOCATION

▶ Watch Mercedes-Benz Klasa A VIN Location Guide

• Shows the hidden firewall/crossmember stamped chassis number under the plastic flap in the engine bay, plus related under-hood points of reference.

Common Problems & Troubleshooting

• “I can’t see the stamped VIN in the engine bay.” Lift the small plastic flap at the base of the windshield cowl, then use a flashlight; the stamp can be body-colored and shadowed.
• “The windshield VIN is unreadable.” Change your viewing angle to reduce glare, shade the area with your hand, and clean the glass—reflections are the #1 issue here.
• Sticker warning: A door-jamb VIN label is convenient, but it can be missing, replaced, or damaged—always cross-check it against the windshield VIN and the engine-bay stamped chassis number.

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