Bosch Aerotwin Wiper Blade Set A173S – Dacia Sandero Stepway II Facelift (2016–2020) 550/475mm

Bosch Aerotwin A173S Wiper Blade Set – Dacia Sandero Stepway II Facelift (2016–2020)

⚠️ ATTENTION – Strict compatibility by manufacturing year: This set is compatible exclusively with Dacia Sandero Stepway II Facelift manufactured between 2016 – 2020, factory-equipped with a Bayonet (slide-in) attachment type. Sandero Stepway II models produced before 2016 (2012–2015) have a Hook (J-Hook) attachment type and are NOT compatible. Sandero Stepway III (from 2021) uses a VATL/Clips attachment and is not compatible.

Bosch Aerotwin A173S (long code: 3397014173) represents the premium standard in automotive wiper blades. The package contains two jointless blades with integrated spoiler: 550 mm for the driver and 475 mm for the passenger, with factory-preinstalled Bayonet adapters.

Why is Bosch Aerotwin superior to any other wiper?

1. Jointless Technology

A173S is a single piece — two flexible steel rails made of premium Evodium, pretensioned to the curvature of the Sandero Stepway windshield. Equal pressure on every millimeter, from -20°C to +40°C. Does not freeze in winter.

2. Twin Technology (Two Rubber Compounds)

The ultra-flexible base ensures smooth articulation. The wiping lip is treated with graphite and Teflon — eliminating squeaking and resisting concentrated windshield fluids.

3. Integrated Aerodynamic Spoiler

The faster you drive, the harder the airflow presses the wiper against the windshield. The wind becomes your ally.

4. Factory Integrated Bayonet Attachment

Adapter molded directly into the metal structure — no play, no vibration, no risk of coming off the arm at 130 km/h.

Technical Specifications

• Manufacturer: Robert Bosch GmbH, Robert-Bosch-Platz 1, 70839 Gerlingen, Germany
• Product code: A173S / 3397014173
• Approved replacement for original OE code: 288902078R (Dacia/Renault)
• Type: Aerotwin Jointless with Spoiler
• Lengths: 550 mm (Driver) + 475 mm (Passenger)
• Attachment: Bayonet type (slide-in) — factory pre-installed
• Package contents: 2 complete blades

Certified Compatibility

• Dacia Sandero Stepway II Facelift (2016–2020) — all engine types: 1.5 dCi, 1.2, 0.9 TCe, 1.0 SCe

❌ NOT compatible with:
• Sandero Stepway II pre-Facelift (2012–2015) — J-Hook attachment
• Sandero Stepway III (from 2021) — VATL/Clips attachment
• Dacia Duster II (from 2020) — different dimensions (600/450mm)
• Renault Clio IV — different dimensions (650/350mm)

💡 Did you know?

• The wind is your ally: The integrated spoiler uses airflow at high speeds to press the wiper against the windshield.
• Evodium steel does all the work: Equal pressure on every millimeter, does not freeze in winter.
• Twin Technology: Ultra-flexible base + lip with graphite and Teflon. No more squeaking at traffic lights.
• The Bayonet attachment protects your windshield: Adapter molded directly into the metal structure — no play, does not come off the arm.

❓ Frequently Asked Questions

Q: What does the package contain?
A: Two premium wiper blades: 550 mm (driver) + 475 mm (passenger), with pre-installed Bayonet adapters.

Q: Does it fit a Sandero Stepway II from 2014?
A: No. 2012–2015 models have a J-Hook attachment. This set is for the 2016–2020 Facelift.

Q: Do I need tools for installation?
A: Not at all. Slide the old blade out, push the new one until you hear a "click" — under 60 seconds.

Q: Does it replace the original Dacia/Renault part 288902078R?
A: Yes. Bosch A173S (3397014173) is approved as a direct replacement for OE code 288902078R — same dimensions 550/475mm, same Bayonet system, superior quality.

⚠️ Safety warning (GPSR): Replace blades immediately if they leave streaks or smears that obstruct visibility. Ensure the adapter is fully locked into the metal slot of the arm before moving the vehicle. Manufacturer: Robert Bosch GmbH, Robert-Bosch-Platz 1, 70839 Gerlingen, Germany.