The Complete Cybex Solution Z-iFix Review

Posted by Robyn Hunt on

Cybex Solution Z-iFix Review

The Cybex Soultion Z-iFix is an i-size approved child booster seat which can only be used forward facing. The Solution Z-iFix is amongst the highest scoring booster seats sold by Precious Cargo. It is also currently the only booster that has a weight limit of 50kgs.

When using the Solution Z-iFix, your child is secured to the booster seat using the vehicle’s 3-point seat belt. The Solution Z-iFix ensures that the seatbelt is positioned correctly over your child’s body to ensure maximum protection in an accident. 

The Solution Z-iFix can be used with or without the isofix anchors which makes it a good option if having to move the seat between cars where one does not have isofix capabilities. 

PROS AND CONS OF THE cybex solution Z-ifix:


  • High safety rating       
  • Higher weight limit
  • The headrest has 12 height adjustable positions          
  • Independent reclining headrest         
  • Automatic width adjustment         
  • The back rest can recline to fit most vehicle seats         
  • Good padding for comfort        
  • Quick and easy to adjust          
  • Air ventilation system

headrest recline


  • Comes in two separate pieces which need to be fitted together before use        
  • Very wide (not suitable for fitting 3 across)
  • Quite expensive


The Solution Z-iFix is a Group 2/3 approved child booster seat. This means that it is approved for use from at least 100cm and 15kgs until 150cm or 50kgs. 

It is currently the only booster seat available with a weight limit of 50kgs. Most other boosters have a weight limit of 36kgs. 

This is a great option for children who are heavier than average.

cybex solution z-ifix weight and height limits

This seat should last approximately 4 – 12 years old for the average sized child. 

We do not recommend the use of a booster seat for children under the age of 4 years old.

WHAT ARE THE SAFETY FEATURES OF THE cybex solution z-ifix?

The Solution Z-iFix is built with an energy- absorbing shell which works to absorb the forces of an impact and therefore provide excellent protection to the child. Additionally, the Solution Z-iFix contains Linear Side-impact protection system which enhances the safety and protection during a side collision up to 25%. 

The force of a side-impact collision is absorbed in a linear series of reactions through the use of protective side cushions, along with the shoulder and head protectors. 

side impact

At the same time, the body's kinetic energy caused by the impact is absorbed at a very early stage and the head is actively led into a safe position. 

Using the isofix on the Solution Z-iFix will increase stability and decrease movement in the vehicle. However, the seat can also be used in vehicles without isofix anchors without compromising your child’s safety. 

The Solution Z-iFix was given a score of 1.8 for safety by ADAC with a low risk of injury in a frontal collision and a very low risk of injury in a side collision. In terms of safety, the Solution Z-iFix is one of the highest scoring boosters available in South Africa and the second highest scoring booster sold by Precious Cargo.

cybex solution z-ifix adac safety rating
safety rating


The Solution Z-iFix contains sufficient padding all round for the best protection and comfort. The headreast has 12 height adjustable positions which ensures that the vehicle’s seat belt fits safely and comfortably over your child as they grow. 

The Solution Z-iFix has an automatic width adjustable backrest that widens as the headrest is raised higher. This accommodates your growing child’s height and width. This is especially useful for children with broader shoulders or wider torsos. Unlike most boosters, the sides of the Solution Z-ifix move upwards with the headrest to ensure the child’s shoulders, neck, and torso are protected within the shell at all times no matter how tall they are. 

The Solution Z-ifix has a one of a kind reclining headrest independent of the backrest’s recline ability. The reclining headrest ensures your child’s head doesn’t fall forward if they fall asleep and therefore increasing safety because your child’s head is protected at all times inside the protective shell of the seats headrest. 

air ventilation

The Solution Z-iFix contains built in ventilation system which ensures the seat is always at an optimal temperature to prevent your child from overheating on hotter days.  

The seat of the Solution Z-iFix is extra wide and deep which gives your child adequate space and comfort from the padding. The Solution Z-iFix is easy and quick to adjust with a one hand adjustable mechanism. 

Furthermore, the Solution Z-iFix has a reclining adjustable back rest which will ensure the backrest is flat against the vehicle backrest making it usable in any vehicle no matter the angle of the backrest. 

cybex solution z-ifix adjustment

HOW IS THE cybex solution z-ifix INSTALLED?

With the optional isofix arms, the Solution Z-iFix can be installed with or without isofix. The vehicle’s 3-point seatbelt must be used in both cases as this is what secures the child to the seat. 

If the Solution Z-iFix is used without isofix, you should always strap the seatbelt around the seat when not in use to prevent it from becoming a projectile in an accident.

HOW TO RemovE and wash the covers?

The seat cover consists of five parts which are fixed to the seat with velcro, press studs or button holes. One you have released the fasteners, the cover parts can be removed. To remove the covers, please follow the instructions below:  

  • Take off the "Linear Side-Impact Protection" System (L.S.P.) by pushing it upwards to release it from its anchorage points.        
  • Undo the press studs on the lower side of the cover for the adjustable headrest. Then you can remove the cover upwards.    
  • Activate the adjustment handle for the headrest and move this to its highest position.        
  • Open and loosen all the press buttons on the rear side of the headrest. Then pull the cover off forwards.        
  • Pull down the cover on the left and right side panel of the Shoulder rest. Then undo the press studs on the interior of the shoulder wings in order to be able to entirely remove the cover.         
  • Before you can remove the backrest cover from the seat, undo the associated fastenings its rear side.          
  • Then thread the elastic bands out on the underside of the seat area and withdraw the seat cushion cover forwards. 
  • The covers can be washed in the washing machine on a 30 degree delicate cycle and then hung to dry out of direct sunlight.

WHAT IS THE LIFESPAN OF THE cybex solution z-ifix?

The Solution Z-iFix has been made to last your child from approximately 4 years old until 12 years old for the average sized child. Therefore, if the seat has not been in an accident, has not been damaged or dropped, then the Solution Z-iFix can be used for approximately 8-9 years.

solution z ifix

WHAT IS THE warranty on THE solution Z-ifix?

Cybex South Africa offer a 3-year warranty from the date of purchase. This warranty will cover replacements or repairs if there is a proven manufacturing fault, and does not cover wear and tear and misuse.

is the cybex solution Z-ifix compatible with my car?

The Solution Z-iFix can be used in any vehicle that has 3-point seatbelts. The Solution Z-iFix cannot be used on a vehicle seat that only has a lapbelt and it cannot be used in front of an active airbag in some cars as the force of the airbag deploying can severely injure and even kill a child. 

The Solution Z-iFix can be used with or without isofix. Therefore, the vehicle does not need to have isofix anchors to use the Solution Z-iFix safely. 

Click below to check if your car is on the approved fit list (please note that not all cars in South Africa are sold in Europe, so will not be on any fit lists. Please contact us if your car does not appear on this list):

Solution Z-iFix Car compatibility

solution z-ifix

How to adjust the Solution Z-iFix according to your child’s height?

The seats headrest can be adjusted for your child’s height by simply lifting up the lever on the back of the headrest and simultaneously lifting or lowering the headrest to the correct height for your child. 

The seatbelt must be threaded through the green seatbelt slots on either side of the headrest (the side that the seatbelt extends from the vehicle) and then under the arm rest and clicked into the vehicle buckle. The shoulder belt part of the seat belt should sit comfortably between the child’s neck and shoulder. 

Ensure that the green belt guides are not touching your child’s shoulder and that the shoulder belt is not cutting into your child’s neck. The lap belt must sit over the top of the thighs and not across the stomach. 

It is very important to note that both the shoulder belt and lap belt must be threaded UNDER the armrests before clicking the seatbelt into the buckle. The child’s head should be protected by the shell of the headrest at all times. 

General rule of thumb: If the seatbelt is cutting into your child’s neck then it is too high and must be lowered. If the seatbelt is slipping off of your child’s shoulder then it is too low and must be lifted higher.

headrest adjust

WHAT ARE THE DIMENSIONS of the cybex solution Z-ifix?

The Solution Z-iFix’s dimensions: L40.5 x W53 x H62.5cm

The Solution Z-iFix weighs 7.2kg.

What accessories are available to use with the Solution Z-iFix?

The Solution Z-iFix must not be used in conjunction with any accessories that have not been manufactured or approved for use by Cybex. Use of aftermarket products can interfere with the safety of the seat in the event of an accident. The following accessories are approved for use with the Solution Z-iFix:

Our Products

Precious Cargo is a proud stockist of Cybex products in South Africa. Feel free to contact us for more information or to arrange a fitting. 

Cybex Solution Z-iFix


solution Z-ifix

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