Britax Advocate 70 CS Convertible Car Seat Review – One Of The Best

Rodolfo Schellin

If you are looking to buy the safest car seat for your child bar none, then The Britax Advocate 70 CS Convertible Car Seat is one of the best. I always felt that the Britax line were of the finest quality as compared to other brands, putting safety above all. In case you are not familiar with the Britax convertible line, I would like to tell you that they are probably the best that money can buy.

Britax has added some new safety features to make them one of the safest products in this area. The Britax Advocate 70 CS Convertible Car Seat’s shell is reinforced with steel bars and it curves around and basically surrounded and protects where your child sits. This is important for your child’s maximum protection.

The very high density comfort foam and super soft cover also contributes to the whole cradling effect of the seat. Another good thing about Britax Advocate 70 CS Convertible is the quick adjust harness. It is really great. You don’t have to uninstall the chair and dismantle the whole thing to adjust the straps to the perfect height and the mechanism is smooth and easy to pull up or push down.

Something I hadn’t realized before is that the service life for Britax car seats is 6 years from the manufacturing date. Until recently, I wasn’t even aware that these type of products had an expiration date.

The Advocate 70 CS is rather large and you may have some difficulty installing it in a smaller vehicle. I suggest you watch the installation video and read the owners manual before installing to make it easier for you.

So, to summarize:


  • Britax safety history – they probably have the safest convertible car seats line ups.
  • Side Impact Protection (including Side Impact Cushion Technology)
  • Fantastic weight range (5-35lbs rear facing) (20-65 forward facing)
  • Comfortable and super soft cover with shoulder pads, belly pads, and infant body pillow
  • Push-button LATCH connectors
  • Versa-tether allows tethering even if your vehicle does not have built-in tether anchors
  • Easy harness adjustment without re-threading
  • Built-in Lockoffs
  • Easy to recline
  • Expires 6 years after manufacturing date
  • Britax website provides manuals and video installation guides


  • It’s Expensive
  • Bulky size may not fit smaller vehicles well
  • Serial number difficult to locate

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