1. Introduction
Thank you for choosing the Maxi-Cosi Tanza car seat. This manual provides essential information for the correct installation, safe use, and maintenance of your car seat. Please read this manual carefully before first use and keep it for future reference.
The Maxi-Cosi Tanza is a Group 2/3 car seat designed for children aged approximately 3.5 to 12 years, or from 100 cm to 150 cm in height. It features G-Cell Technology for enhanced side-impact protection and grows with your child, offering adjustable height and width.
Safety Warning: Always ensure the car seat is correctly installed and your child is properly secured according to these instructions. Incorrect installation can lead to serious injury in the event of an accident.
2. Product Overview
2.1. Components
- Adjustable Headrest
- Backrest
- Seat Base
- ISOFIX Connectors (retractable)
- ISOFIX Release Buttons
- Belt Guides (red)
- Side Protection Panels (G-Cell Technology)
- Height/Width Adjustment Lever
2.2. Key Features
- Group 2/3 Car Seat: Suitable for children from 100 cm to 150 cm (approx. 3.5 to 12 years).
- ISOFIX Installation: Ensures ultra-secure, easy, and quick installation.
- G-Cell Technology: Unique side protection technology for very high protection in case of an accident.
- Evolutive Design: Simultaneous height and width adjustment for optimal comfort as your child grows.
- Enhanced Comfort: Additional padding in the seat and headrest for comfortable journeys.

Figure 2.1: The Maxi-Cosi Tanza car seat in black, showcasing its ergonomic design and padded headrest and seat.
3. Setup and Installation
3.1. Before Installation
- Ensure your vehicle is equipped with ISOFIX anchor points.
- Read your vehicle's owner manual for specific car seat installation guidelines.
- Remove any loose items from the vehicle seat that might interfere with installation.
3.2. ISOFIX Installation
- Place the Maxi-Cosi Tanza car seat on the desired vehicle seat.
- Extend the ISOFIX connectors by pulling the adjustment lever located at the front of the seat base.
- Align the ISOFIX connectors with your vehicle's ISOFIX anchor points. Push the car seat firmly against the vehicle seat back until the connectors click securely into place. Green indicators on the ISOFIX arms will confirm correct engagement.
- Push the car seat firmly towards the vehicle seat back to remove any slack. Ensure the seat is stable and does not move excessively from side to side or front to back.
- Retract the ISOFIX connectors as much as possible by pushing the seat further into the vehicle seat while pressing the adjustment lever. This ensures a tight fit.
Note: The ISOFIX system provides optimal stability even when the child is not in the seat.

Figure 3.1: Maxi-Cosi Tanza car seat with indicated dimensions (Length: 43.5cm, Width: 50.5cm, Height: 65cm). These dimensions are important for checking compatibility with your vehicle's interior space.
4. Operating Instructions
4.1. Adjusting the Car Seat
The Maxi-Cosi Tanza car seat is designed to grow with your child. The headrest and side wings can be adjusted simultaneously to accommodate your child's height and width.
- Locate the adjustment lever at the back of the headrest.
- Squeeze the lever and pull the headrest upwards or push it downwards to the desired height. The side wings will adjust automatically.
- Ensure the headrest is positioned so that the vehicle's headrest does not push the car seat's headrest forward, and the child's shoulders are below the lowest point of the headrest.
4.2. Securing Your Child
The Maxi-Cosi Tanza uses the vehicle's 3-point seat belt to secure your child.
- Seat your child in the car seat.
- Pull the vehicle's 3-point seat belt across your child and the car seat.
- Guide the lap portion of the belt under the armrests and through the red belt guides on the seat base.
- Guide the diagonal shoulder portion of the belt through the red belt guide on the headrest. Ensure the belt lies flat across your child's shoulder and chest, not on their neck.
- Buckle the seat belt into the vehicle's buckle.
- Pull the shoulder belt to tighten the entire belt system, ensuring there is no slack.
Important: Always check that the vehicle's seat belt is correctly routed and tightened every time you place your child in the car seat.
5. Maintenance
5.1. Cleaning Instructions
- Fabric Covers: The fabric covers are removable and washable. Refer to the care label on the fabric for specific washing instructions (usually machine wash at 30°C on a delicate cycle). Do not tumble dry.
- Plastic Parts: Clean plastic parts with a damp cloth and mild soap. Do not use abrasive cleaners or solvents.
- Metal Parts: Wipe metal parts with a damp cloth. Ensure they are dry to prevent rust.
Warning: Never use the car seat without its fabric covers, as they are an integral part of the safety system.
5.2. Storage
When not in use, store the car seat in a clean, dry place away from direct sunlight and extreme temperatures. Ensure it is protected from dust and dirt.
6. Troubleshooting
If you encounter any issues with your Maxi-Cosi Tanza car seat, please refer to the table below. If the problem persists, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Car seat feels loose after ISOFIX installation. | ISOFIX connectors not fully engaged or slack in the system. | Ensure green indicators are visible. Push the seat firmly against the vehicle seat back and retract ISOFIX arms fully to remove slack. |
| Vehicle seat belt does not fit correctly. | Headrest/side wings not adjusted to child's height. Belt twisted. | Adjust the headrest to ensure the shoulder belt guide is at the correct height. Untwist the belt. |
| Difficulty adjusting headrest/side wings. | Adjustment lever not fully squeezed. Mechanism might be stiff. | Ensure the lever is fully squeezed. Apply gentle force. If still stuck, check for obstructions. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | 8767870110 |
| Recommended Minimum Weight | 9 Kilograms |
| Maximum Supported Weight | 36 Kilograms |
| Recommended Minimum Height | 100 Centimeters |
| Maximum Supported Height | 150 Centimeters |
| Materials | Iron |
| Dimensions (L x W x H) | 43.5 x 50.5 x 65 cm |
| Item Weight | 5.7 Kilograms |
| Installation Type | ISOFIX (normal) |
| Orientation | Forward-facing |
| Color | Black |
8. Warranty and Support
8.1. Warranty Information
Maxi-Cosi products are manufactured to the highest quality standards. This product comes with a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your product or visit the official Maxi-Cosi website for detailed warranty terms and conditions applicable in your region.
8.2. Customer Support
For any questions, concerns, or assistance with your Maxi-Cosi Tanza car seat, please contact Maxi-Cosi customer service. Contact details can typically be found on the official Maxi-Cosi website or on the product packaging.
You can also visit the official Maxi-Cosi store for more information: Maxi-Cosi Store