SeatCheck
Convertible car seat

Britax Marathon ClickTight expiration

The Britax Marathon ClickTight expires 10 years after its date of manufacture.

Useful life
10 years
Type
Convertible
Brand policy
6–10 years

Check your Marathon ClickTight

What to know

The ClickTight Marathon lasts 10 years. Earlier Marathon generations were shorter: G3/G4/G4.1 models 7 years, and the original G1 just 6, so identify the generation before trusting a hand-me-down.

The date of manufacture is on the seat itself. The date of manufacture (and on newer seats the expiration date) is on the serial label. Its position varies by model: underside of the shell next to the harness slots on infant seats, back of the seat under the tether hook on ClickTight convertibles, top of the ClickTight compartment under the cover on One4Life, the outside of the headrest on Grow With You models, and under the cover at the front corner on Highpoint and Skyline boosters.

Safety note: SeatCheck summarizes manufacturer and NHTSA guidance, but the label on your own seat and its manual are the final word. When in doubt, contact the manufacturer with your model and serial number.

More about Britax seats

Full policy, label locations and crash-replacement rules on the Britax brand page.

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Frequently asked questions

How long is the Britax Marathon ClickTight good for?
The Britax Marathon ClickTight has a useful life of 10 years from its date of manufacture. The exact date is printed on the seat's own label, so check the sticker on the shell or base rather than counting from the purchase date.
Where is the expiration date on the Britax Marathon ClickTight?
The date of manufacture (and on newer seats the expiration date) is on the serial label. Its position varies by model: underside of the shell next to the harness slots on infant seats, back of the seat under the tether hook on ClickTight convertibles, top of the ClickTight compartment under the cover on One4Life, the outside of the headrest on Grow With You models, and under the cover at the front corner on Highpoint and Skyline boosters.
Should I replace the Marathon ClickTight after a crash?
Britax follows the NHTSA criteria. A seat involved in a moderate or severe crash must be taken out of service immediately. After a minor crash, the seat can stay in use only if all five NHTSA conditions are met: the vehicle could be driven away, the door nearest the seat was undamaged, no one was injured, no airbags deployed, and the seat has no visible damage. If any condition fails, treat it as moderate to severe and replace the seat.

Sources