Britax Römer Advansafix IV R


ADVANSAFIX IV R, grows with you, you and you

R44/04 - Group 1/2/3 (9-36 kg)

Premium Line

Manufactured in Germany, the ADVANSAFIX IV R is a group 1/2/3 (9-36 kg) car seat that incorporates significant improvements in both usability and safety, design and compatibility compared to its predecessor. Thanks to the FLIP & GROW function, switching from the 5-point harness to the 3-point seat belt with SecureGuard will be quick and easy.


9-18 kg: 5 point harness

When configured as a group 1 (9-18 kg) car seat, the child is restrained with the 5-point harness, which distributes the impact forces across five points: two on the shoulders, two on the hips and one on the closure buckle located between both legs.

The soft neoprene chest pads reduce the child's forward movement in the event of an collision and provide greater comfort to the harness.


15-36 kg: 3-point belt with SecureGuard

As group 2/3 (15-36 kg), the occupant is secured directly with the vehicle's 3-point seat belt, in combination with the fourth contact point of the seat belt SecureGuard . This crotch harness ensures that the lap section of the belt remains in the optimal position on the hip, preventing it from rising dangerously towards the belly. SecureGuard helps reduce abdominal forces by up to 35% in a frontal impact.


Easy transition with FLIP & GROW

When it's time to switch groups, the transition will be much easier thanks to the new FLIP & GROW function. In this model, it is no longer necessary to remove any element from the chair, thus avoiding the possible loss of parts and allowing a group change at any time.

Just press a button to unlock the headrest and lift it to the required height, and stow the harness (without removing the chest pads) in the backrest, behind the seat fabric, so it won't get lost. The FLIP & GROW adjustment plate is then switched, turned to place the SecureGuard above the seat, and you’re ready to go!


V-shaped headrest

The V-shaped headrest has been designed to control head movement in the event of a side collision, while providing comfort. It can easily be adjusted with one hand, together with the five-point harness (76-102 cm), to adapt to the growth of the child.

ADVANSAFIX IV R - Reposacabezas

EasyRecline for more convenience

EasyRecline is suitable for all ages and allows you to recline the seat into 3 comfortable positions. Even when the child is in the seat and without having to readjust the Top Tether.


Side protection with SICT system

Side impact protection from head to hip thanks to the backrest equipped with thick and soft padded sides, and the retractable Side Impact Absorption System (SICT) , which only needs to be adjusted on the side closest to the door.


Isofix with Pivot Link and V-shaped Top Tether

ISOFIX connectors feature Britax Römer's patented Pivot Link, which directs the impact force first downward, pushing the seat against the vehicle seat, and then forward more gently. This reduces the risk of head and neck injury. The indicators let you know that the ISOFIX connectors are anchored.

The Top Tether minimizes the rotation of the seat and therefore reduces potential damage to the head and neck area in the event of an accident. Due to its twin anchorage points, the V-shaped Top Tether offers greater stability and security for the child compared to conventional Top Tethers.

ADVANSAFIX IV R - Pivot Link y Top Tether

Installation options

Group 1 (9-18 kg) : Isofix and Top Tether (universal homologation).


As a 2/3 group (15-36 kg), there are two options:
- Isofix and 3-point seat belt (semi-universal homologation). It is necessary to consult the list of approved vehicles .
- 3-point seat belt (universal homologation).

Quick-Remove cover

The padded upholstery is easily removable for machine washing without removing the harness. The chest pads can also be removed for washing.

Made in Germany

The ADVANSAFIX IV R has been designed, developed and manufactured entirely in Germany, after undergoing numerous internal tests at the brand's own crash test center, while the upholstery is produced in Europe.

Good results in tests

The ADVANSAFIX IV R obtained a 2.3 ("Good") in the car seat test of the German consumer organization Stiftung Warentest and the German automobile club ADAC (05/2019), whose results are published by entities such as the RACE or the OCU in Spain.
This model is positioned as the group 1/2/3 (9-36 kg) chair with a five-point harness with the best overall rating since 2015. Its score in the safety section (2.3) is also the best for a car seat. these groups that holds the child with a 5-point harness as group 1 (9-18 kg).

Safety score: 2.3
Usability score: 2.3
Ergonomics score: 1.9
Harmful Substance Score: 1.0


Product specifications

With a width of 44 cm, it is possible to fit three seats in the rear seats of many cars, especially those equipped with i-Size seats or with ISOFIX seats in all three seats.
Rearward facing car seat from 9 to 36 kg.
Dimensions: 60-83 x 44 x 47 (height x width x depth)
Weight: 11 kg
Homologation: UN R44/04

ADVANSAFIX IV R - Dimensiones

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