Maxi-Cosi

Maxi-Cosi FamilyFix S Base

£109.99

Safe travels from birth up to 4 years | Click & Go installation | Visual installation feedback

 
 
£109.99
  • Vehicle Compatibility Support

  • Expert Car Seat Fitting

  • Safety Focused Expertise

  • Support After Your Purchase

 
 
 
 
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Maxi‑Cosi FamilyFix S ISOFIX Base — Secure, Easy, Long-Term Travel Solution

Make car journeys with your little one simpler, safer, and more comfortable with the FamilyFix S ISOFIX base — the anchor you can trust for early years travel.

What FamilyFix S Offers

  • Secure ISOFIX installation: FamilyFix S attaches directly to your car’s ISOFIX anchor points — no seat belt routing needed. The base uses a support leg for extra stability and gives visual installation feedback, so you’ll always know when the seat is correctly fitted. 

  • Click-and-Go convenience: With a simple “click,” compatible car seats snap onto the base and lock securely in place; easy for everyday use. 

  • Rear-facing comfort up to 4 years: FamilyFix S supports a rear-facing position from birth up to ~4 years old (40–105 cm / 0–18 kg) — widely recognised as the safest orientation for infants and toddlers. 

  • Long-lasting use: Because it works with multiple seats across different growth stages, FamilyFix S can serve you for years — reducing the need for multiple bases or seat upgrades. 

Compatible Car Seats

FamilyFix S is designed to work specifically with the “S-Family” car seats from Maxi‑Cosi — namely:

  • Maxi‑Cosi Pebble S Car Seat — ideal for newborns through to early infancy, offering safe, i-Size certified protection from birth. When attached to FamilyFix S, Pebble S becomes quick to install and remove, making everyday car rides and transfers effortless.

  • Maxi‑Cosi Pearl S Car Seat — for when your child grows older, giving extended rearward-facing travel up to 4 years and smooth transition without changing the base. 

Because the base supports children up to 105 cm and 18 kg, you get multi-year value from a single installation. 

Who FamilyFix S Is For

FamilyFix S is a smart choice if you:

  • Want maximum safety and stability using ISOFIX rather than a seat belt.

  • Prefer easy and quick installation before every trip — perfect for busy families.

  • Want to invest in a base that grows with your child, avoiding repeated seat-belt installations or multiple bases.

  • Value rearward-facing travel for as long as possible — widely recommended for infant safety and comfort.

 
 
  • Expert Advice You Can Trust

    Car seat specialists who help you choose the right option for your child, your car and your daily routine with support before and after you buy.

  • Fits Your Car. Fits Your Child

    Avoid guesswork — get guidance choosing the right seat for your child’s age/height and your vehicle’s setup, so you buy with confidence.

  • Curated for Safety

    A carefully selected range from trusted brands — no endless scrolling, just quality seats you can compare easily.

  • 40+ Years of Trust

    Since 1983, parents have relied on us for honest guidance, practical support and peace of mind on every journey.

  • Book an Expert Fitting

    Book an appointment for hands-on help — see the seat, check fit in your car, and get it set up correctly first time.

Shipping

Free shipping up to £600 *

Returns

30 day returns for peace of mind

Pickup

Free customer collection in store

Brand

40 years' experience of children's car seats