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EXTREME HAZARD!

DO NOT

 use the child seat on a 

passenger seat fitted with an active  
front airbag unless your vehicle 
manufacturer confirms that it is safe.

DO NOT

 use anything, such as a cushion or coat, 

to raise the child seat off the passenger seat. In an 
accident the child seat and your car seat belts would 
not be able to protect your child as well as they should.

DO NOT

 use the child seat in the home. It has not 

been designed for home use and should only be used 
in your car.

DO NOT

 attempt to dismantle, modify or add to any 

part of the child seat or change the way its harness 
or your car seat belts are made or used. The official 
approval is no longer valid if modifications are made. 

NO

 modifications may be made to the child seat 

other than by the manufacturer.

DO NOT

 leave children alone in your car, even for a 

short time.

DO NOT

 leave loose objects, such as luggage 

or books, in the back of your car. They must be 
properly secured, because if you have to stop your 
car suddenly loose objects will keep moving and can 
then cause serious injuries. Large and heavy loose 
objects are a particular risk. 

DO NOT

 leave folding passenger seats unlatched. If 

you have to stop your car suddenly a loose seat back 
could injure your child.

DO NOT

 allow children to play with or adjust the 

child seat.

DO

 keep this user guide in the user guide storage 

pocket.

DO

 cover the child seat if your car is left in direct 

sunlight. Fittings can become hot to touch in sunny 
weather and the cover may become faded.

DO

 make sure that the child seat does not become 

trapped by a folding passenger seat or in the door of 
your car.

DO

 make sure that you adjust the harness to fit the 

clothes your child is wearing before each journey – a 
fitting for winter clothes may be too slack for a child 
wearing summer clothes.

BB0-665-00 1/8

You must ensure that you follow these instructions carefully and correctly. If this seat is not fitted 
securely and your child is not strapped in correctly, your child and other passengers are at serious 
risk of injury in the event of an accident

IMPORTANT!

The Hampshire Trading Standards Authority and 

Britax advise that child car seats should not be 

bought or sold second-hand. Please dispose of your 

child seat safely. Do not sell or pass it on.
After an accident, the child seat and your car seat 

belts should be replaced. Although they may look 

undamaged, if you were to have another accident 

the child seat and your car seat belts may not be able 

to protect your child as well as they should.

No child seat is escape proof 

Harness systems cannot be designed to be 

completely “child proof” and yet comply with the 

legal requirements of European Standard ECE R44. 

The harness must be fastened and adjusted correctly 

at all times and children encouraged to remain 

within the harness system. 

Looking after your child seat

 

Food and drink may find their way inside the 

buckle of the harness. This can stop it from working 

properly – it will not click. Wash in warm water until 

clean 

(dia A and B)

.

Pull the cover from the top of the seat and bring the 

straps through the shell to the front of the seat and 

remove the chest pads. Unfasten the  buckle and 

remove the comfort pad by unfastening the hook and 

eye strip. Gently pull the cover off the seat, easing the 

shoulder straps adjuster, shoulder straps, and harness 

buckle and adjuster strap through the slots in the cover.  

To refit the cover, reverse this method of removal.
Make sure the straps are not twisted when refitting 

through the cover and on to the yoke. 

IMPORTANT –

 The cover is a safety feature. 

NEVER

 

use the child seat without it. Don’t put your child’s 

safety at risk by using other makes of replacement 

cover, they could stop the child seat from protecting 

your child as well as it should.
A replacement cover is available from your Britax 

stockist or contact Britax Customer Service 

Department on 

01264 386034

.

Guarantee

 

All Britax products are carefully designed, 

manufactured and tested. However, should this 

product prove faulty within 12 months of purchase 

due to a materials or manufacturing fault please 

return it to the original place of purchase. We will 

then, at our discretion, either repair it free of charge or 

replace it with the same or a similar product.
For guarantee purposes proof of purchase will be 

required. We recommend that you retain your receipt 

and attach it to this user guide. They should be kept 

in a safe place.
Britax does not accept liability for damage arising 

from abuse, misuse or negligence. This guarantee 

is not transferable and therefore does not apply to 

second-hand products.
Your statutory rights are not affected by this guarantee.

If in doubt  

Not all car seats fit all cars.

 

For advice as to the 

suitability of this restraint for your car please use 

 on our website at 

www.britax.eu

, call 

our Customer Service Helpline on 

01264 386034

 or 

email 

[email protected]

.

Britax Excelsior Limited

 

1 Churchill Way West 

Andover 

Hampshire SP10 3UW 

United Kingdom

A Britax Childcare company

Customer Service Helpline: 01264 386034 

Email: [email protected] 

Switchboard: 01264 333343 

Fax: 01264 334146

www.britax.eu

Introducing your new child car seat

 

10

 

11

 

12

 

13

 

14

 

15

 

16

 

17

 

18

Cover

Yoke 

(behind 

belt shield)

Top tether slots

User guide pocket

Harness height adjuster
Red seat belt lock

Shoulder strap of harness

Red seat belt clamp
Side slot

Lap belt guide

Belt shield

Green handle

Red release button
Catch arm
Catch arm protector

Shoulder strap slots

Chest pads

Seat shell

Harness

Harness buckle

Insertion  

guides

Comfort pad

Routing guide

Adjuster button 

(underneath adjuster strap)

Recline handle 

(underneath front of seat)

Adjuster strap

Green locking button

DO

 store the child seat in a safe place when it is not 

being used. Avoid placing heavy objects on top of it 
and do not store near direct heat sources or in direct 
sunlight.

DO

 always keep the child seat secure, even if it is not 

being used by your child.

DO

 make sure that all occupants in the vehicle are 

correctly restrained.

DO 

where necessary, use the insertion guides when 

installing the child seat with ISOFIX fittings. Failure to do 
so may result in damage to your vehicle seat.

IMPORTANT –

 ISOFIX should only be 

used with vehicles which appear on the 
supplied applications list. An up-to-date 
copy of the list can also be found on the 
Britax website – 

www.britax.co.uk

Britax, whilst taking into account child car seat contact 
with vehicle seats throughout the development of new 
products, cannot accept responsibility for damage 
occurring to vehicle seats or seat belts.

IMPORTANT –

 The child seat 

MUST

 

only be used with ISOFIX (see application 
list) or a lap and diagonal seat belt 
(approved to UN/ECE Regulation no. 16 
or other equivalent standards).

WARNING

Please read this User Guide carefully BEFORE trying to install your child car seat

Cleaning the cover

 

Please read the labels on the cover for washing 

instructions. 

DO NOT

 tumble dry the cover – short spin and drip 

dry only.

Cleaning the harness and seat shell 

Sponge clean 

ONLY

 using hand soap and warm water.

DO NOT

 take apart, or attempt to take apart, any 

part of the harness or seat when cleaning. 

DO NOT

 use solvents, detergents or washing-up 

liquid as these may weaken the harness and the seat. 

DO NOT

 lubricate or oil any part of the seat.

Removing and refitting the cover

 

Press in and hold the harness release button and with 

your hand below the chest pads 

(dia 1a, overleaf)

 

pull 

BOTH

 shoulder straps forwards as far as they will 

go. Pull up on the shoulder straps at the back of the 

seat to lift the yoke from behind the belt shield. Unhook 

both shoulder straps from the yoke and unhook both 

chest pads from the harness height adjuster.

A

B

Diagonal

Lap

Duo Plus ISOFIX

GB

User Guide

9-18Kg (Group 1)

1037.015 - Duo Plus ISOFIX (UK).1   1

8/8/06   10:12:57

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