1. Product Overview
The Maxi-Cosi CabrioFix i-Size is a lightweight and compact infant car seat designed to provide optimal safety and comfort for your child. Adhering to the latest R129 (i-Size) safety standard, this car seat features a simple yet robust structure, weighing only 3.2 kg to minimize handling burden.
Key features include:
- Enhanced Head Protection: A newly shaped headrest and shoulder support, unique to Maxi-Cosi, are designed to protect your child from side impacts, particularly from the door side.
- Hug Inlay Function: A supportive cushion system securely cradles infants from 40 cm to 60 cm in height, ensuring even newborns who cannot yet hold their heads up can travel safely and comfortably.
- Large Sun Canopy: Equipped with a self-supporting large sun canopy, providing effective sun protection. The angle of the sunshade can be adjusted independently of the handle position.
- Smooth Loading and Unloading: Integrated belt hooks located above the button prevent the harness belts from getting in the way, making it easier to place and remove your child from the car seat.

Figure 1: Maxi-Cosi CabrioFix i-Size Infant Car Seat in Essential Green.
2. Safety Information
Always read the full instruction manual before using the car seat. Failure to follow these instructions can result in serious injury or death.
- Never leave your child unattended in the car seat.
- Ensure the car seat is correctly installed and secured in the vehicle before every journey.
- Always secure your child with the harness system, ensuring straps are snug and not twisted.
- Do not use the car seat if it has been involved in an accident, even if there is no visible damage.
- Refer to your vehicle's owner's manual for specific car seat installation guidelines.
3. Setup and Installation
The CabrioFix i-Size can be installed using your vehicle's 3-point seat belt or with a compatible ISOFIX base (sold separately). Always install the car seat in a rearward-facing position for infants.
3.1. Installation with Vehicle Seat Belt
- Place the car seat on the vehicle seat in a rearward-facing position.
- Route the lap portion of the vehicle's 3-point seat belt through the blue belt guides on both sides of the car seat.
- Buckle the vehicle seat belt.
- Pull the shoulder portion of the vehicle seat belt firmly to remove any slack, ensuring the car seat is tightly secured against the vehicle seat.
- Route the shoulder portion of the vehicle seat belt through the blue belt guide at the back of the car seat.
- Check for a secure fit by attempting to move the car seat; it should not move more than 2.5 cm (1 inch) in any direction.

Figure 2: Side view of the car seat, illustrating its rearward-facing design.
3.2. Installation with ISOFIX Base (Sold Separately)
Refer to the specific instruction manual provided with your Maxi-Cosi ISOFIX base for detailed installation steps. Ensure the base is correctly installed and the car seat clicks securely onto the base, indicated by visual and/or audible indicators.
4. Operating Instructions
4.1. Securing Your Child
- Place your child in the car seat.
- Bring the two buckle tongues together and insert them into the buckle until you hear a click.
- Pull the harness adjustment strap to tighten the harness until it is snug against your child's body. Ensure you can only fit one finger between the harness and your child's collarbone.
- Adjust the shoulder straps to the correct height, ensuring they are at or slightly below your child's shoulders when rearward-facing.

Figure 3: Close-up of the headrest and harness, showing the hug inlay for infants.
4.2. Adjusting the Handle
The handle has multiple positions for carrying, in-car use, and stability. Press the buttons on both sides of the handle simultaneously to adjust its position.
- Carrying Position: Handle upright.
- In-Car Position: Handle fully back, resting against the vehicle seat.
- Feeding/Rocking Position: Handle fully forward, providing stability when placed on the floor.
4.3. Using the Sun Canopy
The integrated sun canopy can be extended or retracted independently. Pull it forward to provide shade or push it back when not needed. Its self-supporting design allows for angle adjustment regardless of the handle position.
5. Maintenance and Care
Regular maintenance ensures the longevity and safety of your car seat.
- Cleaning Fabric Covers: The fabric covers are removable and washable. Refer to the care label for specific washing instructions (typically machine wash on a delicate cycle with cold water). Do not tumble dry.
- Cleaning Plastic Parts: Wipe plastic parts with a damp cloth and mild soap. Do not use abrasive cleaners or solvents.
- Harness System: Inspect the harness straps regularly for any signs of wear, fraying, or damage. Clean with a damp cloth; do not machine wash harness straps.
- Storage: Store the car seat in a cool, dry place away from direct sunlight when not in use.
6. Troubleshooting
If you encounter any issues, please refer to the following common solutions:
- Car seat feels loose after installation: Re-read the installation instructions carefully. Ensure the vehicle seat belt is pulled taut, or if using an ISOFIX base, check that all indicators are green.
- Harness straps are difficult to adjust: Ensure the harness release button is fully pressed when loosening the straps. Check for any twists in the straps.
- Buckle is difficult to fasten/unfasten: Ensure both buckle tongues are fully inserted. Clean the buckle mechanism if debris is present.
For further assistance, please contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Maxi-Cosi |
| Model | CabrioFix i-Size |
| Color | Essential Green |
| Orientation | Rearward-facing |
| Product Dimensions (D x W x H) | 66 cm x 44 cm x 55.5 cm (Height including handle: 73 cm) |
| Product Weight | 3.2 kg |
| Recommended Minimum Height | 40 cm |
| Recommended Maximum Height | 75 cm |
| Recommended Maximum Weight | 12 kg |
| Harness Type | 3-point harness |
| Number of Height Positions | 2 |
| Safety Standard | R129 (i-Size) |

Figure 4: Product dimensions of the CabrioFix i-Size car seat.
8. Warranty Information
Maxi-Cosi products are manufactured to the highest quality standards. This product comes with a standard manufacturer's warranty against defects in materials and workmanship under normal use. The specific warranty period may vary by region and retailer.
To register your product or for detailed warranty terms and conditions, please visit the official Maxi-Cosi website or contact your local distributor. Keep your proof of purchase for warranty claims.
9. Support and Contact
For product support, spare parts, or any inquiries not covered in this manual, please contact Maxi-Cosi customer service.
- Official Website: www.maxi-cosi.com (Please check for your regional website for specific contact details.)
- Retailer Support: Contact the retailer from whom you purchased the product for local support and service.
Always refer to the full, printed instruction manual that came with your product for the most accurate and complete information.





