Britax ISOFIX Leaflet

IMPORTANT – 

The child seat is semi-universal. For advice as to the suitability of the 

child seat for your vehicle you 

MUST use the vehicle applications list, 

 on 

our website at www.britax.eu, call our Customer Service Helpline on 01264 386034 or 

email helpline@britax.eu.

Installing the child seat 

If required, clip the two insertion guides 

onto the two ISOFIX anchorage points 

on the vehicle seat (between seat and 

backrest). The cut out on the insertion 

guide must point upwards

 (dia 2a). The 

insertion guides should be removed when 

not in use. 

Pull the green catch release handle at the 

base on the back of the seat out to extend 

the two catch arms fully

 (dia 2b).

Unfold the foot prop from the base.

Press the safety buttons on the left and 

right side of the seat base together  

(dia 2c).
TIP - This ensures that both hooks on the 

locking arms are open and ready to use.

Guide both catch arms into the insert 

guides until the arms engage on both 

sides 

(dia 2d). “CLICK!”

IMPORTANT – 

The green markings on 

the safety buttons must now be visible on 

both sides 

(dia 2e).

Pull on the child seat to ensure it is 

engaged on both sides 

(dia 2f).

Press the tension button whilst pushing 

the child seat against the backrest of the 

vehicle seat 

(dia 2g).

Turn the foot prop handle anticlockwise  

 and pull out the foot prop   until it rests 

firmly on the floor of the vehicle 

(dia 2h).

IMPORTANT – 

The foot prop must never 

be suspended in mid-air or supported by 

other objects. Also ensure that the foot 

prop does not raise the child seat from the 

vehicle seat surface.

Turn the foot prop handle anti-clockwise to 

shorten it 

(dia 3a).

Press the safety buttons on the left and 

right side of the child seat to release it from 

the vehicle 

(dia 3b).

The catch arms release.

Press and hold the tension button whilst pushing the catch arms into the seat base at the 

same time 

(dia 3c). 

Fold the foot prop onto the bottom side of the seat base.

IMPORTANT –

 Do not twist the belt

Firmly push the child seat into your vehicle 

seat using your body weight. Pull and hold 

the diagonal belt  . Pull at   to remove all 

slack in the lap belt and insert the diagonal 

belt into the upper routing guide.

IMPORTANT –

 Do not twist the belt.

Whilst holding the diagonal belt tight pull 

up on the clamp lever   until it engages 

(dia 4d).

IMPORTANT –

 The diagonal seat belt 

section may only be clamped on the side 

of the vehicle seat buckle

 

–

 Ensure catch arms are 

stowed.  
Unfold the foot prop and place the child 

seat facing forward on the vehicle seat.
Pull up on the adjustment handle and pull 

the seat shell forward into the reclining 

position.
Pull out the vehicle seat belt and place it 

between the seat shell and the seat base 

(dia 4a).

Turn the foot prop handle anticlockwise   

and pull out the foot prop   until it rests 

firmly on the floor of the vehicle

 (dia 4e).

IMPORTANT – 

The foot prop must never 

be suspended in mid-air or supported by 

other objects. Also ensure that the foot 

prop does not raise the child seat from the 

vehicle seat surface.

IMPORTANT – 

After installing the child 

seat you need to check the position of the 

seat belt buckle.
Checking the position of the seat  

belt buckle
If, after following the installation 

instructions, your seat belt buckle looks 

like this 

(dia 4f) the child seat should now 

be secure. To check this try to pull the seat 

forward by the harness. It should feel firm, 

not loose.

Engage the buckle tongue in the vehicle 

seat buckle. CLICK!
Place the lap belt section in the lap belt 

routing guides on both sides of the seat 

base.
Press down the clamp lever of the dark 

red seat belt clamp on the same side of 

the seat as the vehicle seat buckle. Insert 

the diagonal seat belt section in the belt 

clamp 

(dia 4b).

If, after following the above instructions, 

your seat belt buckle looks like this 

(dia 4g) the child seat is NOT correctly 

installed. 
Try another seating position in your car.

The child seat should now be secure.  

To check pull forward firmly on the 

harness. There should be little or no 

movement

 (dia 4h). 

If you are in any doubt contact Customer 

services on 

01264 386034 or use our  

Fit-finder service at www.britax.eu. 
To remove the child seat from the car, 

simply reverse these instructions.

Push the adjuster button in and at the same 

time pull 

BOTH shoulder straps forward as 

far as possible

 (dia 5a).

Turn the seat around and open the User 

Guide storage flap. Lift the harness adjuster 

at the back of the seat shell and move it 

up so that the shoulder strap slots in the 

headrest are in the top position.

Unhook the harness strap from the yoke at 

the back of the child seat. Pull the harness 

strap through the shoulder strap slot to the 

front of the seat 

(dia 5b).

Remove the chest pad strap from the chest 

pad attachment arm. Pull the chest pad 

strap through the shoulder strap slots to the 

front of the seat 

(dia 5c).

Feed the harness strap all the way out of 

the SAFESTRAP™ mechanism until it is 

released 

(dia 5d).

Making sure the harness strap is not twisted 

push the loop end of the harness strap up 

through the front of the SAFESTRAP™ 

mechanism and pull through 

(dia 6a).

Ensure there is enough slack and thread 

the harness strap down over the bar of 

the SAFESTRAP™ mechanism and pull 

through 

(dia 6b).

Feed the harness strap under the 

SAFESTRAP™ mechanism. Push through 

the harness strap until it appears out the 

top of the chest pad. Ensure the strap is not 

twisted 

(dia 6c).

Push the chest pad strap through the 

shoulder strap slot towards the back of the 

seat. Attach the chest pad strap to the chest 

pad adjustment arm 

(dia 6d).

Push the harness strap through the 

shoulder strap slot towards the back of the 

seat. Attach the harness strap to the yoke. 

Ensure the harness strap and the chest pad 

strap are not twisted 

(dia 6e).

Pull through all the excess slack to close 

the indicator 

(dia 6f).

Harness adjustment 

With one hand press the adjuster button 

and with your other hand 

BELOW the 

chest pads, pull both shoulder straps 

forward as far as possible to loosen the 

harness 

(dia 1a). 

Your child’s head MUST be centralised 

within the headrest 

(dia 1b). 

The shoulder strap slots in the cover and 

shell MUST be level with the top of your 

child’s shoulders. If in any doubt always 

position the slots slightly above the 

shoulder rather than below it 

(dia 1b).

However, once you reach the top position 

your child may continue to use the seat 

until their eye line is above the top of the 

seat shell or their weight exceeds 18kg.

Unfasten the buckle by pressing the red 

harness buckle button   

(dia 1c).  

To fasten the buckle; first fit the two upper 

sections together, then push them firmly 

into the lower section until you hear a 

positive “CLICK”  .

To tighten the harness
Sit your child in the child seat and fit the 

harness. Tighten the harness by pulling 

the adjuster strap forward until the gap  

on the SAFESTRAP™ indicator is less  

than 2cm wide. This indicates that the 

harness should be comfortable but firmly 

fitted around your child. Make sure the 

harness straps are not twisted.

IMPORTANT – 

The lap section of the 

harness should rest as forward and as low 

as possible over your child’s pelvis.
Finally, ensure the chest pads are pulled 

down onto your child’s chest 

(dia 1d).

Reclining the child seat
The child seat can be used in either an 

upright, or reclined position 

(dia 1e).

Squeeze the recline handle  

(dia 1e inset), underneath the front of the 

child seat, and slide the child seat shell 

into the desired position.

and harness to fit your child:
Loosen the harness straps as far as 

possible.
Tip the headrest forward. The headrest 

adjuster is now unlocked.
Slide the headrest up or down until the 

shoulder straps are at the correct height.
Push the headrest back onto the seat shell 

to lock the headrest adjuster again  

(dia 1f).

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