1. Introduction
This manual provides essential information for the safe and proper use, installation, and maintenance of your LIONELO Bastiaan i-Size Car Seat. Please read this manual thoroughly before first use and keep it for future reference.
The LIONELO Bastiaan i-Size Car Seat is designed to accommodate children from birth up to 12 years of age, covering a height range of 40-150 cm (0-36 kg). Its versatile 4-in-1 design eliminates the need for multiple car seats as your child grows.

Image: Front view of the LIONELO Bastiaan i-Size Car Seat, showcasing its design and harness system.
2. Safety Information
Your LIONELO Bastiaan i-Size Car Seat is engineered with advanced safety features to provide maximum protection for your child. It complies with the latest European safety standards, i-Size R129.
- i-Size R129 Compliance: Meets the stringent i-Size R129 safety standard, ensuring enhanced protection, especially for side impacts.
- Rearward-Facing Travel: Offers optimal protection by allowing rearward-facing travel for children up to 105 cm (approximately 4 years).
- Advanced Side-Impact Protection: Features superior support and safety, absorbing impact forces to shield your child in the event of a collision.
- 5-Point Harness System: A secure 5-point harness keeps your child safely restrained within the seat.
- Memory Foam Headrest: Provides additional support and safety for the child's head and neck.

Image: The car seat illustrating its advanced side protection and Tri-Guard headrest for enhanced safety.

Image: The car seat with an icon indicating its compliance with the i-Size standard.
3. Product Features
The Bastiaan i-Size car seat is designed with features that prioritize both safety and comfort for your child, adapting to their growth from infancy to pre-teen years.
- 4-in-1 Design: Accommodates children from birth up to 12 years (40–150 cm; 0–36 kg), providing a long-term solution.
- 360° Swivel Rotating Base: Allows for easy placement and removal of your child, and effortless switching between rearward and forward-facing positions.
- Adjustable Headrest: Features a 7-position adjustable headrest to ensure proper fit and comfort as your child grows.
- Reclining Positions: Offers 4 reclining positions for optimal comfort during travel, whether awake or asleep.
- Dri-Seat System: An integrated system designed to keep your child comfortable and dry, enhancing breathability.
- Removable Soft Upholstery: The upholstery can be easily removed for cleaning, ensuring hygiene and longevity.

Image: The car seat demonstrating its 360-degree rotating base for easy access and position changes.

Image: The car seat highlighting its 4-step tilt adjustment and 15-step headrest adjustment for customizable comfort.

Image: A child seated in the car seat, showing the lumbar and reduction inserts, and the Dri-Seat system for comfort.
4. Setup and Installation
Proper installation is crucial for your child's safety. The Bastiaan i-Size car seat offers multiple installation options to suit your vehicle.
Installation Methods:
- ISOFIX Latch: Ensures a rigid and secure connection to your vehicle's ISOFIX anchor points.
- Top Tether: Provides an additional anchor point for enhanced stability, especially in forward-facing mode.
- Vehicle Seat Belt: Can be used for installation in vehicles without ISOFIX, or for older children in booster mode.
Installation Orientation:
- Rearward Facing: For children from 40 cm up to 105 cm (approx. 4 years or 18 kg). This is the safest position for infants and toddlers.
- Forward Facing: For children from 76 cm up to 150 cm (approx. 15 months to 12 years or 36 kg).
The 360° swivel function simplifies the process of placing your child into the seat and securing them, as you can rotate the seat towards the car door.

Image: The car seat highlighting its ISOFIX and Top Tether installation points, along with the 5-point adjustable seat belts.
5. Operating Instructions
Familiarize yourself with the various adjustments to ensure your child's comfort and safety during every journey.
Adjusting the Headrest:
The headrest can be adjusted to 7 different height positions. To adjust, locate the headrest adjustment lever (usually at the top or back of the headrest), squeeze or pull it, and slide the headrest up or down until it is at the correct height for your child. The shoulder straps will adjust simultaneously with the headrest.
Adjusting Recline Positions:
The seat offers 4 reclining positions. To recline the seat, locate the recline adjustment handle (typically at the front base of the seat), pull it, and tilt the seat to the desired angle. Ensure the seat clicks securely into place.
Using the 5-Point Harness:
Place your child in the 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 snugly against your child's body. To release, press the red button on the buckle.
Rotating the Seat:
To rotate the seat, ensure the child is not in the seat or the harness is unbuckled. Locate the rotation lever (usually at the front base of the seat). Engage the lever and rotate the seat 360 degrees to face the desired direction (rearward or forward) or towards the car door for easy access.
6. Maintenance
Regular maintenance ensures the longevity and hygiene of your car seat.
Cleaning the Upholstery:
The soft upholstery of the Bastiaan i-Size car seat is removable and can be hand washed. Wash at temperatures up to 30°C. Do not bleach, tumble dry, iron, or dry clean. Allow to air dry completely before reattaching to the seat frame.

Image: The car seat with an icon indicating that the upholstery is removable and can be hand washed at 30°C.
Cleaning the Frame:
Wipe the plastic and metal parts of the car seat frame with a damp cloth and mild soap. Do not use abrasive cleaners or solvents.
Strap Care:
Inspect the harness straps regularly for any signs of wear or damage. Clean straps with a damp cloth. Do not immerse the buckle in water or lubricants.
7. Troubleshooting
If you encounter any issues with your LIONELO Bastiaan i-Size Car Seat, please refer to the following common solutions. If the problem persists, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Seat does not rotate smoothly. | Rotation lever not fully engaged; obstruction under the base. | Ensure the rotation lever is fully pulled. Check for any debris or objects under the seat base. |
| Harness straps are difficult to tighten/loosen. | Straps are twisted; buckle is obstructed. | Untwist the straps. Ensure the buckle area is clear of debris. Do not lubricate the buckle. |
| Seat feels loose after ISOFIX installation. | ISOFIX connectors not fully engaged; Top Tether not tightened. | Push the seat firmly against the vehicle seat back until ISOFIX indicators turn green. Ensure the Top Tether strap is taut. |
For more complex issues or if troubleshooting steps do not resolve the problem, please contact LIONELO customer support.
8. Specifications
Detailed technical specifications for the LIONELO Bastiaan i-Size Car Seat.
| Specification | Detail |
|---|---|
| Model Number | LO-BASTIAAN I-SIZE PINK BABY |
| Product Dimensions | 47 x 45 x 60.8 cm |
| Item Weight | 7.5 kg |
| Target Gender | Unisex |
| Maximum Weight Recommendation | 36 Kilograms |
| Minimum Height Recommendation | 40 Centimetres |
| Maximum Height Recommendation | 150 Centimetres |
| Material Type | Foam (HDPE, polyester) |
| Harness Type | 5-Point |
| Number of Reclining Positions | 7 |
| Orientation | Forward Facing & Rear Facing |
| Installation Type | ISOFIX Latch, Top Tether, Seat Belt |
| Safety Standard | i-Size R129 |

Image: Technical diagram showing the dimensions of the LIONELO Bastiaan i-Size Car Seat.
9. Warranty and Support
For warranty information, product registration, or technical support, please contact LIONELO customer service directly. Keep your proof of purchase for any warranty claims.
You can visit the official LIONELO store for more information and support: LIONELO Official Store







