For most current BMW 4 Series models, the standard front wipers are 26 inches on the driver's side and 20 inches on the passenger's side; if your car has a rear window wiper (as many Gran Coupé variants do), that rear blade is typically around 10 inches. Exact sizes can vary by year, body style, or regional market, so it's best to confirm against your owner's manual or by measuring the blades you replace.
Front wiper blade sizes
This section covers the most common front-blade configurations for today’s 4 Series lineup (G22/G23). Always verify the exact size on your vehicle before ordering replacement blades.
- Driver-side blade: 26 inches (65 cm)
- Passenger-side blade: 20 inches (50 cm)
Note: Some late-model or regional variants may use slightly different lengths (for example 26"/19" or 26"/21"). If your current blades differ, rely on the ones printed on the blade itself or your owner's manual.
Rear wiper blade size (Gran Coupé and select variants)
Rear wipers are not standard on every 4 Series body style. When equipped, a typical rear blade is around 10 inches (25 cm). Always check the exact length on your existing blade or in the vehicle's documentation, since some markets or trims use 9–11 inch blades.
- Rear blade: about 10 inches (25 cm)
As with front blades, use the blade length markings on the blade or the packaging to ensure you order the correct size for your specific model year and market.
How to verify the right size for your car
If you want to be certain, follow these steps to confirm the exact wiper blade size for your BMW 4 Series:
- Open the hood and inspect the current blades; the size is often printed near the blade hinge.
- Measure the blade length from end to tip using a ruler or tape measure, or remove the blade and check the packaging for the length.
- Consult the owner’s manual or the BMW Parts catalog for your exact year and body style (G22/G23).
- Ask a parts counter for the correct fit when buying aftermarket blades; provide your VIN if needed.
When in doubt, many reputable brands offer universal adapters that fit most BMW wiper arms, but to ensure full wipe coverage and proper fit, use the specified sizes.
Choosing the right blades
Beyond length, consider blade design and performance. There are OEM or genuine BMW blades and aftermarket options from brands such as Bosch, Valeo, and Rain-X. Some buyers prefer sensor-friendly or aerodynamic blades designed for high-speed stability and quiet operation.
- OEM/BMW Genuine Wiper Blades
- Aftermarket options: Bosch ICON series, Valeo Ultimate, Rain-X Latitude
When selecting blades, also consider your climate. For heavy rain or snow, you may want silicone blades or winter-specific variants that resist freezing and provide longer life in harsh conditions.
Summary
Most BMW 4 Series models use 26-inch driver-side and 20-inch passenger-side front wiper blades, with a rear blade of about 10 inches if your model has a rear wiper. Always confirm with your manual or by checking the blade markings, since exact sizes can vary by year, market, and body style. When shopping, you’ll find OEM BMW options or trusted aftermarket blades such as Bosch, Valeo, and Rain-X offer reliable performance.