background image

06

05

Seat shell

ISOFIX locking arms

Fabric loop

Operating instructions compartment

Adjusting ring of the headrest

Tilt adjustment lever

Adjustment belt 

Adjustment button 

Shoulder straps 

Shoulder pads 

Release button

Harness buckle

Headrest

ISOFIX insertion aids

ISOFIX fastening points (car)

Top tether 

1. PRODUCT OVERVIEW

2. APPROVAL

These instructions use the following symbols stated below: 

Symbol

Keyword

Explanation

 

DANGER!

Risk of severe personal injury

 

WARNUNG

!

Risk of minor personal injury

 

CAUTION!

Risk of material damage 

 TIP:

Useful notes 

3. USE IN THE VEHICLE

Please observe the instructions for using children's restraining systems in the 
operating instructions of your vehicle. During use, be sure to observe any restric-
tions relating to airbags.

Please refer to 

the operating instructions for your vehicle for information about 

vehicle seats

 which are certified for the use of children's restraining systems according 

to ECE R16. 

 

TRIFIX i-SIZE

 usage options: 

BRITAX RÖMER 

child safety seat

Vehicle seat position with ISOFIX and 

top tether

i-Size

Not i-Size

TRIFIX i-SIZE

 

You can use your child safety seat as follows:

In the direction of travel

Yes 

1)

Against the direction of 

travel

No

On seats featuring:

ISOFIX fastenings (be-

tween the seat surface 

and backrest) and top 

tether anchoring points 

(e.g. on the loading area, 

on the floor or behind the 

backrest)

Yes 2)

 

(Please observe the applicable regulations in force in your country)

1) Using the seat in a backwards-facing car seat (e.g. in a van or minibus) is only permitted if 

the car seat is also approved for transporting adults. The seat may not be in the area of effect 

of an airbag.

2) If there is a passenger airbag: Slide the passenger seat well backwards and follow any 

relevant directions in your vehicle's operating instructions.

76–105 cm

≤ 22 kg

Safety button

06

05

04

03

02

01

12

11

10

09

08

07

17

16

15

14

13

04

03

12

13

14

15

01

02

07

08

09
10
11

17

16

We are pleased that you have chosen our 

TRIFIX i-SIZE

 to accompany your child safely through a new stage of his or her life.

In order to protect your child correctly, the 

TRIFIX i-SIZE

 must always be used and installed as described in these instructions.

The 

TRIFIX i-SIZE 

is exclusively intended to secure your baby

in your vehicle.

BRITAX RÖMER 

child safety seat

Tested and approved according to 

ECE* R 129/01

Body size

Body weight

TRIFIX i-SIZE

 

76–105 cm

≤ 22 kg

*ECE = European Standard for Child Safety Equipment

The child safety seat has been designed, tested and approved according to 

the requirements of the European Standard for Child Safety Equipment (ECE 

R 129/01). The seal of approval "E" (in a circle) and the approval number are 

located on the orange approval label (sticker on the child safety seat).

 

DANGER!

  This certification will be invalidated if you make any modifica-

tions to the child safety seat. Only the manufacturer is permitted 

to make modifications to the child safety seat. Unauthorised 

technical changes can cause the protective function of the 

seat to be reduced or completely eliminated. Do not make any 

technical changes to the child safety seat.

 

DANGER!

  Use the 

TRIFIX i-SIZE

 exclusively for securing your child in your 

vehicle. It is in no way suitable for use as a seat or toy in the 

home.

PAGE I

4. CARE AND MAINTENANCE

Cleaning

Please only use authentic BRITAX RÖMER replacement seat covers. The 

seat cover is an integral part of the child safety seat and is key to ensuring the 

trouble-free functionality of the system. Replacement seat covers are available 

from your dealer.

•  The cover can be removed and washed with a mild detergent in the 

delicates programme of the washing machine (30°C). Please observe the 

instructions on the washing label of the cover.

•  The shoulder pads can be removed and washed in luke-warm soapy 

water.

•  The plastic parts and the harness can be cleaned with soapy water. Do not 

use any caustic cleaning agents (such as solvents).

Care for the harness buckle 

To ensure the safety of your child, it is absolutely essential that the harness 

buckle continues to function correctly. Harness buckle malfunctions are usu-

ally caused by a build-up of soiling or by external objects:

•  When you press the red release button, it takes a long time for the buckle 

tongues to be ejected.

•  The buckle tongues no longer engage (i.e. when you try to push them in, 

they pop out again).

•  The buckle tongues engage without an audible "click".

•  The buckle tongues are difficult to push in (you feel a certain amount of 

resistance).

•  The buckle can only be opened by applying extreme force.

Remedy: 

Clean the harness buckle so that it functions properly again with no 

trouble:

Cleaning the harness buckle

1.  Open the harness buckle 

04

 (press the red release button).

2.  Unhook the elastic seam of the cover from the bottom edge of the seat 

shell 

17

.

3.  Open the Velcro fastener on the crotch pad 

18

 and pull it over the harness 

buckle 

04

  along with the cover.

4.  Rotate the crotch harness with the metal plate 

19

  which holds the har-

ness buckle 

04

 in the seat shell 

17

 by 90° in the longitudinal slot.

5.  Slide the metal plate 

19

 through the harness slot 

20

 with the narrow edge 

facing forwards.

6.  Soak the buckle 

04

 in warm water containing washing-up liquid for at least 

an hour. Rinse the buckle thoroughly and dry it.

7.  Slide the metal plate 

19

 fully into the longitudinal slot from the front.

8.  Rotate the crotch harness with the metal plate 

19

 by 90° until it is hooked 

into the harness slot 

20

 on the seat shell 

17

 perpendicular to the direction 

of motion.

 DANGER! 

Tug hard on the harness buckle 

04

 to make sure that it is 

secure in the seat shell 

17

.

9.  Thread the harness buckle 

04

 through the crotch pad 

18

 on the cover 

and then re-fasten the Velcro fastener and the cover.

Removing the cover 

                        

1.  Push the tilt adjustment lever 

11

 upwards and slide back the seat shell 

17

 

to upright position.

2.  Loosen the shoulder straps 

08

 as far as possible.

3.  Open the harness buckle 

04

 (press the red release button).

4.  Open the Velcro fastener on the crotch pad 

18

.

5.  Slide the headrest 

03

 into the lowest position.

6.  Pull off the cover of the headrest 

03

.

7.  Open the snap fasteners on the left and right of the rear part of the cover.

8.  Turn over the rear part of the cover onto the seat surface.

9.  Thread the shoulder straps 

08

 through the recesses in the cover. Unhook 

the elastic seam of the cover from the bottom edge of the seat shell. 

 

TIP:

 Start with the handles on the side and top of the seat shell.

10. Pull the cover up and over the border of the strap adjuster.

11. Unthread the harness buckle 

04

 and the strap end 

09

 from the cover.

12. Pull the cover upwards a little and then put it with the recess over the 

headrest 

03

.

 DANGER!

 The child seat must not be used without the seat cover.

Reattaching the cover:

Proceed in reverse order to put on the cover.

 

Caution:

 The harnesses must not be twisted and must be correctly posi-

tioned in the harness slots.

Removing the shoulder pads

1.  Loosen the shoulder straps 

08

 as far as possible.

2.  Slide the headrest 

03

 into the second position from the top.

3.  Fold up the bottom part of the headrest 

03

 upwards.

4.  Open the shoulder pads 

07

 at the Velcro fasteners at the side.

Rear of the child safety seat

5.  Open the operating instructions compartment 

14

.

6.  Pull out the shoulder straps 

08

 a little so that you can see the strap loops 

of the shoulder pads 

07

 underneath.

7.  Unhook the strap loops from the plastic fasteners 

25

 of the height ad-

juster.

8.  Pull the shoulder pads 

07

 forwards out of the harness slots.

Re-attaching the shoulder pads:

Simply follow the steps above in reverse order.

 

Caution: 

The shoulder pads 

07

 or harnesses must not be twisted or 

changed places. The shoulder straps 

08

 must be located under the black 

cover band 

21

 in the shoulder pads 

07

.

18

04

04

18

19

20

08

11

03

08

03

07

07

25

08

76–105 cm

≤ 22 kg

TRIFIX 

i-SIZE

User instructions

www.britax.com

2000027224 

  17/08

GB

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