The 2018 BMW 3 Series typically uses 26-inch driver-side and 19-inch passenger-side front wiper blades, and the sedan generally does not have a rear wiper.
While those are the standard sizes for the common 2018 3 Series sedan, variations can exist depending on the exact body style or optional equipment. Always confirm with your owner’s manual, the VIN-specific parts lookup, or by measuring the blades you remove before purchasing replacements.
Front wiper blade sizes
The following sizes cover the front wipers used on most 2018 3 Series sedans. Verifying on your specific car helps ensure a perfect fit, especially if you have a late-2018 build or a non-standard option.
- Driver-side blade: 26 inches
- Passenger-side blade: 19 inches
These front blade sizes represent the typical setup for the 2018 3 Series sedan. If you’re unsure, check the blade length stamped on the blade itself or consult the vehicle’s manual or an official parts lookup tool.
Rear wiper considerations
The 2018 3 Series sedan almost always ships without a rear wiper. If you own a wagon, Gran Turismo, or a variant that includes a rear wiper, rear blade sizes are model- and body-style dependent, so verify through the official documentation or a VIN-specific parts lookup.
How to verify and replace
When shopping for blades, use these methods to confirm the correct sizes for your car and avoid mistakes.
- Check the owner’s manual or the official BMW parts catalog for blade length specifications.
- Measure the current blades from tip to tip before buying a replacement.
- Use a VIN-based parts lookup tool or consult a parts specialist to ensure compatibility.
Following these steps helps ensure you purchase the correct front wiper blades for your 2018 BMW 3 Series and avoid fit issues.
Summary
For the 2018 BMW 3 Series sedan, plan on front wiper blades sized 26 inches on the driver side and 19 inches on the passenger side. A rear wiper is typically not present on the sedan; variant-specific models (like wagons) may differ, so always verify against manuals or VIN-based parts lookups. When replacing, consider reliable brands and climate conditions to choose blades that meet your driving needs.