Pick how you're putting it in. Each way is from the maker's manual.
Base with LATCH
Where it can go: Rear-facing only while driving; side-facing is only for putting the seat on the base and getting your baby in or out, never while the vehicle moves. Never in a seat with an active frontal airbag; only on forward-facing vehicle seats. Behind another vehicle seat it must touch that seat back or be as close as possible. Do not use the LATCH belt and the vehicle belt together.
1Unfold the load leg but do not extend it to the floor yet.
2Place the base flat on the vehicle seat and swivel the cradle to face you.
3With the belt lock-off closed, take the lower anchor belt out of storage and weave it in and out of the belt path.
4Attach the connectors (arrows up) to the vehicle's lower anchors.
5Push the base down and back into the vehicle seat while pulling the belt tight until both tension indicators turn fully green.
6Extend the load leg until it meets the floor, then lift the front of the base to lock it; it must be perpendicular to the floor.
Check it before you drive
Both belt tension indicators completely green.
The base should not move more than 1 in. (2.5 cm) side to side at the belt path.
Do not use the load leg if it does not reach the floor or on top of a floor storage compartment.
Park on level ground when installing.
Retold from Maxi-Cosi product page. Your vehicle's manual also says which seats have LATCH anchors. When in doubt, a certified child passenger safety technician can check your install.
The carrier on and off the base
Clicking it onto the base
1Turn the seat cradle on the base to side-facing (squeeze the rotation handle and swivel it toward you); the seat can only go on or off in this position.
2Line up the bar on the back of the car seat with the cradle.
3Push down on the front of the car seat to lock it into the cradle.
4Or tip the seat toward you with the bar just past the back of the cradle, then pull it toward you along the cradle until it clicks.
5Push down on the front and pull up on the carry handle to check it is locked, then rotate the seat to rear-facing until the indicator shows locked.
The maker warns: Use this seat only with a compatible Maxi-Cosi infant car seat base; a wrong base or a seat not securely attached can cause serious injury or death.
The Peri 180 base: Stay-in-car rotating base with LATCH connectors, anti-rotation load leg and anti-rebound bar; TensionFix belt indicator; taxi-mode belt install.
What Maxi-Cosi says about its bases and carriers, for a second car or an older base.
The spare Maxi-Cosi Infant Car Seat Base takes the Mico Pro, Mico Pro+, Mico Luxe, Mico Luxe+, Mico Max Plus, Mico Max 30, Mico XP Max and Mico 30 carriers. Maxi-Cosi product page
The Peri 180 has its own rotating base; the spare Peri 180 base is listed for the Peri 180 carrier. Maxi-Cosi product page
The newborn insert
What Maxi-Cosi says about the insert
1The pillows and covers are optional (on select models); use them only if they help your baby's comfort and fit.
2Head pillow: to remove, gently pull its fabric tabs out from the harness straps from the back of the pillow.
3Body pillow: undo the buckle, pull it through the slot in the pillow, then slide the pillow out from behind the harness straps.
4Harness covers: keep the fastener opening pointing away from your baby's face. To remove the top part, undo the harness, pull the fastening strips apart and slide it off; the bottom part does not come off.
Rear-facing only while driving; side-facing is only for putting the seat on the base and getting your baby in or out, never while the vehicle moves. Never in a seat with an active frontal airbag; only on forward-facing vehicle seats. Behind another vehicle seat it must touch that seat back or be as close as possible. Do not use the LATCH belt and the vehicle belt together.
How do I know the Maxi-Cosi Peri 180 is installed right?+
Both belt tension indicators completely green. The base should not move more than 1 in. (2.5 cm) side to side at the belt path. Do not use the load leg if it does not reach the floor or on top of a floor storage compartment. Park on level ground when installing.
The spare Maxi-Cosi Infant Car Seat Base takes the Mico Pro, Mico Pro+, Mico Luxe, Mico Luxe+, Mico Max Plus, Mico Max 30, Mico XP Max and Mico 30 carriers.
When do I use or remove the Maxi-Cosi Peri 180 infant insert?+
The pillows and covers are optional (on select models); use them only if they help your baby's comfort and fit. Head pillow: to remove, gently pull its fabric tabs out from the harness straps from the back of the pillow.
