Nania Siège auto Rehausseur isofix START I FIX 106-140 cm R129 i-Size - Spiderman

Brand: nania
Model Number: ‎7259110174A

User Manual for Nania START I FIX Car Seat (Isofix, Spiderman)

Product Overview

The Nania START I FIX is a child car seat designed for children aged approximately 5 to 10 years old, with a height range of 106 to 140 cm and a maximum weight capacity of 36 kilograms. This car seat is manufactured in France and meets the i-Size R129 safety standard. It features isofix attachments for secure installation, side protection, an adjustable headrest, a reclining base, and memory foam padding.

Installation Instructions

Attaching the Car Seat with Isofix

  1. Locate the Isofix anchor points in your vehicle. These are typically found between the seat backrest and seat cushion.
  2. Extend the Isofix connectors on the car seat by pressing the release button and pulling the connectors out.
  3. Align the Isofix connectors with the anchor points in the vehicle and push the car seat connectors into the anchors until you hear a "click" indicating they are locked in place.
  4. Ensure that the car seat is firmly attached by pulling on it. If it does not move, the installation is secure.

Securing Your Child

  1. Place your child in the car seat with their back flat against the seat back.
  2. Thread the vehicle's 3-point seat belt through the belt guides on the car seat, ensuring there are no twists in the belt.
  3. Buckle the seat belt and pull it tight to secure your child snugly in the car seat.
  4. Adjust the headrest to the appropriate height for your child. The headrest should be level with the top of your child's ears.

Adjusting the Recline Position

The START I FIX car seat has a reclining base for added comfort. To adjust the recline, pull the lever at the front of the base and tilt the seat to the desired position. Release the lever to lock the seat in the new position.

Troubleshooting Tips

  • Isofix connectors not extending: Ensure you are pressing the release button fully and pulling the connectors out firmly.
  • Car seat moves after installation: Double-check that the Isofix connectors are fully engaged and the car seat is pushed back as far as possible against the vehicle seat.
  • Difficulty threading seat belt: Make sure the belt guides are clear and the seat belt is not twisted before threading it through the guides.
  • Headrest not staying in place: Ensure you have adjusted the headrest correctly and that it is locked into position.


Can this car seat be installed using the vehicle's seat belt?

No, the START I FIX is designed to be installed using the Isofix system only.

Is this car seat suitable for all vehicle types?

While the START I FIX is compatible with most vehicles equipped with Isofix, we recommend checking your vehicle's manual to ensure compatibility.

How do I clean the car seat?

The cover can be removed and washed according to the instructions on the care label. Do not use harsh chemicals or bleach. Always allow the cover to dry completely before reattaching it to the seat.

What should I do if the Isofix connectors won't retract?

If the Isofix connectors are stuck, check for any obstructions and ensure that the release button is fully pressed. If the issue persists, contact the manufacturer for assistance.

Can the car seat be used without the backrest?

No, the backrest is an integral part of the car seat's design and safety features and should not be removed.

Is the car seat approved for airplane use?

The Nania START I FIX car seat is not specifically certified for use on airplanes. Always check with the airline before traveling.

How do I know if the headrest is at the right height?

The headrest should be adjusted so that it is level with the top of your child's ears. This ensures optimal protection and comfort.

What is the lifespan of the car seat?

Refer to the manufacturer's guidelines for the lifespan of the car seat. Typically, car seats have a lifespan of 5 to 10 years from the date of manufacture.

Can I install the car seat in the front passenger seat?

It is not recommended to install the car seat in the front passenger seat, especially if the vehicle is equipped with an airbag. The safest place for a child car seat is in the rear of the vehicle.

What does i-Size R129 mean?

i-Size R129 is a European car seat safety standard that aims to make car seats safer by requiring enhanced side impact protection, rearward-facing travel for longer, and the use of Isofix.

For any further assistance or questions not covered in this manual, please contact the manufacturer or refer to the product documentation.

FAQ [continued]

Q: What is the age range for this car seat?
A: This car seat is suitable for children aged 5 to 10 years.

Q: Is this car seat compatible with the i-Size R129 standard?
A: Yes, this car seat is homologated according to the i-Size R129 standard.

Q: Can this car seat be installed using the ISOFIX system?
A: Yes, the START I FIX car seat can be installed using the ISOFIX system for quick and secure installation.

Q: How does the child secure in this car seat?
A: The child is secured in this car seat using the 3-point seat belt.

Q: Does this car seat have adjustable headrest height?
A: Yes, this car seat has an adjustable headrest height for added comfort.

Q: Is the base of this car seat reclining?
A: Yes, the base of this car seat is inclinable for additional comfort.

Q: Where is this car seat manufactured?
A: This car seat is manufactured and tested in France.

Q: What is the maximum weight that this car seat can support?
A: This car seat can support a maximum weight of 36 kilograms.

Q: What are the dimensions of this product?
A: The dimensions of this product are 44 x 44 x 68 cm and it weighs 1 kilogram.

Q: What is the recommended age for using this car seat?
A: It is recommended to use this car seat from 5 years onwards.


Model Number‎7259110174A
CategoryBébés & Puériculture > Bébé et Puériculture > Siège auto et accessoires > Sièges auto
Poids maximum pouvant être supporté par le produit‎36 Kilogrammes
Composition‎polyester et plastique
Autres spécificités produit‎isofix, i-size
Nécessite des piles‎Non
Référence constructeur‎7259110174A
Dimensions du produit (L x l x h)‎44 x 44 x 68 cm; 1 kilogrammes
Date de mise en ligne sur Amazon.fr17 octobre 2023
Moyenne des commentaires client4,1 4,1 sur 5 étoiles 154 évaluations 4,1 sur 5 étoiles
Classement des meilleures ventes d'Amazon1,043 en Bébé et Puériculture (Voir les 100 premiers en Bébé et Puériculture) 29 en Sièges auto
Type d'installationCeinture de sécurité
Dimensions du produit44P x 44l x 68H centimètres
Recommandation de poids maximum36 Kilogrammes
Tranche d'âge (description)Enfant
Dimensions‎44 x 44 x 68 cm; 1 kilogrammes
First Available17 octobre 2023

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