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Maxi-Cosi Isofix base pins won’t extend, any tips or advice?

1 reply

Chloerose2 · 13/03/2026 21:03

Hi, I got a maxi cosi newborn car seat and the matching isofix fixture from mammas and papas online however I can’t get the isofix fixture to work - the yellow long bits that go into the car seat won’t come out. I don’t understand what I’m doing wrong and they don’t seem to have a contact number.
can anyone help/advise me? Thanks

OP posts:
Are your children’s vaccines up to date?
BertieBotts · 13/03/2026 22:02

You need to press in the grey buttons on the side to get the isofix arms to extend, like in this video.

If this is not working, I would assume that your base is faulty. You should contact Mamas and Papas - the contact page on their website says this:

If you need to contact us, the best way to get in touch is by filling in the contact form below. A member of our Customer Care team will get back to you within 72 hours.
If you need to speak to a member of our team urgently, you can call us on 0345 268 2000. Our phone lines are open Monday - Friday 9.30am - 5pm, Saturdays 9.30am - 4pm and Sundays 10am - 4pm.

https://www.mamasandpapas.com/pages/contact

Contact Us

Have a question or need to get in touch about an order? Contact our friendly and helpful customer service team who will be happy to offer assistance.

https://www.mamasandpapas.com/pages/contact

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