In most recent US-market GLC300 models, the front wipers are 26 inches on the driver’s side and 18 inches on the passenger side, with a 12-inch rear blade.
Wiper blade sizes can vary by model year and market. Factors such as windshield curvature, wiper arm design, and whether the car uses a two-blade or beam-style setup influence the exact fit. To be certain, check the owner's manual, the vehicle’s data plate, or a trusted parts diagram for your specific year and trim.
Front wiper blade sizes (GLC300, US market)
The following sizes reflect typical OEM measurements for US-market GLC300s in recent years.
- Driver-side blade: 26 inches
- Passenger-side blade: 18 inches
Because variations exist across model years and markets, confirm the exact fit for your vehicle by checking the manual or measuring the blades currently installed.
Rear wiper blade size
The rear blade on most GLC300 models is a single blade around 12 inches.
- Rear blade: 12 inches
As with the front blades, verify this size for your exact year and market by consulting the owner's manual or a parts diagram.
How to verify the correct size for your GLC300
Confirm by model year and market
Wiper sizes are not universal across all GLC300 generations. Always verify against your specific model year and regional specification.
- Check the owner's manual's maintenance or wiper section for listed blade lengths.
- Look up the MB parts diagram for your VIN or model year to see the intended blade sizes.
- Measure the current blades if you’re unsure: length measured along the blade edge from tip to tip.
If in doubt, contact a Mercedes-Benz dealer or a reputable parts retailer with your VIN to confirm the exact sizes for your car.
Summary
For many US-market GLC300s, plan on 26" driver-side and 18" passenger-side front wipers, plus a 12" rear blade. Always verify for your exact year and market, using the owner's manual, dealer diagrams, or by measuring the blades currently fitted.