Introducción
Thank you for choosing the CYBEX Aton B2 i-Size infant car seat. This manual provides essential information for the correct installation, use, and maintenance of your car seat. Please read it thoroughly before use and keep it for future reference. This car seat is designed for infants from birth up to approximately 24 months, with a maximum weight of 13 kg (45 cm - 87 cm).
Información importante de seguridad
WARNING: Never leave your child unattended in the vehicle. Installation of this car seat on the front passenger seat with an activated front airbag is NOT PERMITTED.
- Always ensure the car seat is securely installed according to the instructions.
- Ensure the child is properly secured in the harness system.
- No utilice la silla de auto si ha estado involucrada en un accidente, incluso si no hay daños visibles.
- Regularly check all parts for wear and tear. Replace damaged parts immediately.
- Keep this manual in the designated compartment on the car seat or in a safe place for future reference.
Configuración e instalación
The CYBEX Aton B2 i-Size can be installed using two methods: with an ISOFIX base (sold separately) or with the vehicle's 3-point seat belt.
1. Preparación del asiento del coche
- Inserto para recién nacidos: For infants up to 60 cm, use the removable newborn insert to provide optimal support and a flatter lying position. Remove it when your child outgrows it.
- Ajuste del reposacabezas: The headrest is adjustable to 11 positions. Adjust it so that the shoulder straps are at or slightly below your child's shoulders. The harness system automatically adapts with the headrest adjustment.

Image: Adjusting the headrest and harness height for optimal fit.
2. Installation with ISOFIX Base (e.g., Isofix Base One)
For the most secure and convenient installation, use a compatible ISOFIX base (sold separately).
- Place the ISOFIX base on the vehicle seat.
- Extend the ISOFIX connectors and push them into the ISOFIX anchor points in your vehicle until they click into place. Green indicators will confirm correct connection.
- Adjust the load leg to the vehicle floor until it is firmly supported. A green indicator will confirm correct positioning.
- Place the Aton B2 i-Size car seat onto the ISOFIX base until it clicks securely into place. Check for green indicators on the base to confirm correct attachment.
3. Instalación con el cinturón de seguridad del vehículo
If an ISOFIX base is not used, the car seat can be installed using the vehicle's 3-point seat belt.
- Coloque el asiento del automóvil orientado hacia atrás en el asiento del vehículo.
- Pull out the vehicle's 3-point seat belt and route the lap belt portion through the blue belt guides on both sides of the car seat.
- Abróchese el cinturón de seguridad.
- Pull the shoulder belt portion firmly and route it through the blue belt guide at the back of the car seat.
- Asegúrese de que el cinturón de seguridad esté tenso y que el asiento del automóvil esté firmemente asegurado, con un movimiento mínimo.
Operación del asiento del automóvil
1. Asegurar a su hijo
- Press the harness release button (usually located at the front of the seat) and pull the shoulder straps forward to loosen the harness.
- Abra la hebilla del arnés.
- Coloque a su hijo en el asiento del automóvil.
- Bring the two buckle tongues together and click them into the central buckle until you hear a click.
- Pull the adjustment strap at the front of the seat to tighten the harness until it fits snugly around your child, ensuring no more than two fingers can fit between the harness and your child's collarbone.

Imagen: Frente view of the car seat showing the harness and newborn insert.
2. Uso del dosel
The car seat features an XXL canopy with UPF 50+ protection against sun and wind.
- To extend the canopy, simply pull it forward from its stored position.
- To retract the canopy, push it back until it is fully folded.

Image: Adjusting the integrated XXL sun canopy.
3. Side-Impact Protection (L.S.P. System)
The Linear Side-impact Protection (L.S.P.) system is integrated into the car seat shell to absorb impact forces in the event of a side collision.
- Ensure the L.S.P. system is extended on the side closest to the vehicle door.
- To extend the L.S.P. protector, simply pull it outwards until it clicks into place.
- To retract it, press the release button and push it back in.

Image: The Linear Side-impact Protection (L.S.P.) system.
4. Posiciones del asa de transporte
The carry handle has multiple positions for carrying, installation, and stability.
- Carrying Position: Handle fully upright.
- Posición de instalación: Handle rotated back for easier access.
- Posición reclinada: Handle fully rotated back for stability when placed on the floor.

Image: The car seat with its ergonomic carry handle.
Mantenimiento
1. Limpieza
- Fundas de tela: The fabric covers are removable and machine washable at 30°C on a delicate cycle. Refer to the care label on the fabric for specific instructions. Do not tumble dry.
- Piezas de plástico: Clean plastic parts with a mild detergent and warm water. Do not use harsh cleaning agents or solvents.
- Sistema de arnés: Limpie las correas del arnés con publicidad.amp cloth. Do not wash the harness straps in a washing machine as this can weaken the material.
2. Almacenamiento
Cuando no esté en uso, guarde el asiento del automóvil en un lugar limpio y seco, alejado de la luz solar directa y de temperaturas extremas.
Solución de problemas
- El asiento del automóvil se siente suelto después de la instalación: Ensure all ISOFIX connectors are fully engaged (green indicators visible) or that the vehicle seat belt is pulled taut through all designated guides. Re-read the installation section carefully.
- Arnés difícil de apretar/aflojar: Check for any twists in the harness straps. Ensure the harness release button is fully pressed when loosening.
- El niño parece incómodo: Verify that the headrest and harness height are correctly adjusted for your child's size. Ensure the newborn insert is used if your child is under 60 cm.
- Canopy Not Extending/Retracting Smoothly: Check for any obstructions or fabric caught in the mechanism.
If you encounter issues not covered here, please contact Cybex customer support.
Presupuesto

Image: Dimensions of the Cybex Aton B2 i-Size car seat.
| Característica | Detalle |
|---|---|
| Número de modelo | 4063846201013 |
| Dimensiones (L x An x Al) | 66 x 44 x 39-56.5 cm |
| Peso | 3.8 kilogramos |
| Peso mínimo recomendado | 0 kg (from birth) |
| Peso máximo soportado | 13 kilogramos |
| Rango de altura del niño | 45 cm - 87 cm |
| Material | Plastic, Synthetic Fabric |
| Norma de seguridad | R129/03 de la ONU (tamaño i) |
| Tipo de arnés | Arnés de 3 puntos |
| Posiciones del reposacabezas | 11 |
| Tipo de instalación | ISOFIX (with base) or Vehicle Seat Belt |
| Orientación | Orientado hacia atrás |
| Color | Bahía Azul |
Garantía y soporte
CYBEX products are manufactured with the highest quality standards. For information regarding warranty terms and conditions, please refer to the warranty card included with your product or visit the official Cybex website. For technical support, spare parts, or service inquiries, please contact your local Cybex retailer or Cybex customer service.
You can find more information and support on the official Cybex websitio: www.cybex-online.com





