vindje.com / Guides / Kids & baby
A used car seat is only safe if you know its full history: no crash, not too old, all parts and the manual present. If a stranger cannot tell you that with confidence, skip it and buy new. Of all baby gear, this is the one where saving money is hardest to justify.
A car seat is designed to absorb one crash. After a collision the plastic shell and foam can have hairline cracks or compressed sections that you cannot see. Manufacturers tell you to replace a seat after any accident, even a minor one. A seller on Marktplaats has no reason to mention that their seat was in a fender bender, and you have no way of checking.
That is why the best used car seat is one from a family member or friend who can tell you exactly how it was used.
Buying from a stranger is not automatically wrong, but every one of these should be true:
Newer seats are approved under UN R129, called i-Size, and are grouped by the child's height rather than weight. Older seats carry the R44/04 label. New R44 seats are no longer sold in EU shops, but using one is still allowed. For a used purchase, an i-Size seat is the better pick because it will be newer and has passed a side-impact test.
Many infant seats like the Maxi-Cosi Pebble 360 or Cybex Cloud T click onto an Isofix base. Check that the base and seat are a matching pair, and test that the base legs and Isofix arms lock with a green indicator.
An Isofix base has no foam or harness and takes less of the force in a crash than the seat itself, but the same history rule applies. A booster cushion (zittingverhoger) without a back offers little side protection, so a high-back booster is better. In the Netherlands, children shorter than 1.35 m need a child seat, so most kids will use two or three seats in total.
Rear-facing seats for toddlers are expensive new. If you find one from a trusted source with a known history, that is where a used buy saves the most.
Not every seat fits every car. Before you pay, ask to try it in your car, or at least check the manufacturer's vehicle fit list for your model. Install it the way the manual says, then grab the seat at the belt path and push it side to side: it should move no more than a couple of centimetres. With a belted infant seat, check that your car's belt is long enough to reach around the shell.
Skip any seat with missing labels, a production date you cannot find, a replaced or knotted harness, or a seller who does not know where it came from. Listings with several identical seats or 'from a deceased estate' type stories leave too many questions. A seat at EUR 20 that turns out to be crashed is the most expensive bargain on the site.
| Item | Typical asking price |
|---|---|
| Maxi-Cosi Pebble 360 or Cybex Cloud T infant seat (no base) | EUR 60-150 |
| Isofix base (FamilyFix 360, Base T) | EUR 60-150 |
| Toddler i-Size seat, forward or rear facing | EUR 80-250 |
| High-back booster (Cybex Solution, Maxi-Cosi RodiFix) | EUR 30-90 |
| Older R44 group 0+ infant seat | EUR 10-40 |
Rough Marktplaats asking prices in the Netherlands. Condition, age and season move them a lot.
Describe what you want in your own words and vindje.com searches Marktplaats in Dutch, then reads every listing and keeps only the real matches. For example:
Maxi-Cosi Pebble 360 with FamilyFix 360 base, i-Size, less than 3 years old, never in an accident, under 200 euroSearch Marktplaats like this
Yes, buying and selling used seats is allowed. What matters is that the seat has a valid approval label and is fit for your child.
Most manufacturers give a lifespan of roughly 6 to 10 years from production. The exact figure is in the manual, and the production date is stamped on the shell.
Yes, using an R44/04 seat you own is still allowed. New R44 seats are no longer sold in EU shops, so used ones will only get older.
No. Manufacturers advise replacing a seat after any crash, even if it looks fine.