Question about Britax Marathon

4 Answers

Stuck in recline

It seems that the base is stuck in a recline position. When I try to move the seat to the upright position it does not lock in place. It seems to move as far as it needs to but it does not click and stay in that position. I have been trying this when it is not attached to the car at all. It is in the living room. We have not reached the 33 pound limit for recline, but will soon. Please help!

Posted by on

4 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer
Re: stuck in recline

I know this post is old but I figured somebody w/the same problem might come across this. I had the same problem with my Marathon today. I also own a Roundabout & had no problem changing the recline myself. When my husband came home he took a look & fixed it. All he did was put it in the upright postion , held it in place & turned the seat on it's side & pushed up on the base and it clicked! he pushed on one of the corners (but I don't know if that even matters)

Posted on Apr 19, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: stuck in recline

Has anyone else been able to solve this issue? My Marathon won't latch in the upright position, but will in the recline position. When I pull the latch, it will move like it wasn't to latch but won't ever click. The plastic on the front is all the way up, so I don't think it's an issue of how far it travels - the latch just won't catch.

I tried using some WD40 and it didn't help.

Posted on Jan 16, 2010

Re: stuck in recline

Call Britax. They replaced ours no problem.

Posted on Jul 17, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has achieved Level 3.

  • Master
  • 619 Answers
Re: stuck in recline

The lock are not move to engage slat due the lock are stuck /need to spray w/ WD40 pull the release to penetrate oil to moving parts.

Posted on Jan 10, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Cannot adjust position

Grip the carseat on the underside of the front lip, push the button in and lift the front to recline / push down to put in a more upright position.

Feb 11, 2014 | Maxi-Cosi Maxi Cosi Tobi MAGIC ROSE 2008...

1 Answer

I have a Britax Renaissance car seat . How do I remove the base unit.

Normally it's not reccomandable to remove the base ... It's build to last forever and keep the seat sturdy in it's place. This construction gives you the option to change the position into 5 different angles for sitting, resting and sleeping. Just when you want to install the seat or put it into it's "sleeping position" just lift the recline handle under the seat shell and pull it. This way you'll have more space to get the seat-belts through.
Hope this answers your question.
Kind regards

Apr 22, 2011 | Britax Renaissance Si - Milan

1 Answer

Is the back supposed to be in a fixed position or is it held upright by the back of the seat of the car

There are multiple fixed recline positions. It sounds like your seat is not catching properly once the recline bar is pulled. Please contact Britax (888-427-4829) and make them aware of the situation.

Mar 03, 2011 | Britax Boulevard

1 Answer


One month old should not be in a car seat that allows for upright sitting. If it is convertible you have it in wrong. The seat should have a base unit which should be firmly fastened and the carrier should snap in and out of this base allowing you to carry your infant to and from the vehicle without having to detach the base every time you exit the vehicle. This is done so to prevent the unsafe installation of car seat under the stresses of time. If you seat is the kind that does not have a permanent base, go get one. It is very important that you do not modify the installation of any car seat for any reason. Placing a towel under the base as a barrier between the base and your seat is acceptable, but not to raise or lower the front or back as this may compromise its' design and decrease its' effectiveness. If you cannot figure it out, go to your local State Police Barracks where in most states they have a pregame designated for the safe installation of child infant seat carriers. This is very serious. The proper installation and choice in infant carriers can mean the difference of life and death in case of a relatively minor accident.

Jan 21, 2011 | Eddie Bauer 3-In-1 with Latch

1 Answer

My Britax Boulevard will not stay locked in the upright position for a forward facing child.

Just had to completely take ours apart & wash everything.... putting it back together I found the 33lb recline weight limit & since our guy is 32 figured I'd move it upright & had the same problem.... googled & never found an answer..... but figured it out myself.
Flip it over & there are 4 "screws" on the bottom - they are hex head so you'll need the right screwdriver (I have a kid with interchangeable heads that had the right one)... unscrew them, pull the handle & manually snap it into place - it's like it gets off a bit when reclined for a long time. Once I did that & it snapped in I put the bottom plate & 4 screws back on... presto!
Hopefully you didn't give up already since this is a few months old of a question.

Nov 24, 2010 | Britax Boulevard

6 Answers

My maxi cosi tobi seat wont recline

Yes it seems to be a design fault. Has happened twice on our Tobi seat.

To fix, lay the seat on its back.

Locate the 3 Torx head screws middle front and rear left and right. You'll need a Torx screwdriver or head of the correct size.

Undo the screws, then pop the four catches at each corner with a flat-head screwdriver and remove the base.

Look at the recline mechanism, you'll see large bar at the rear (both sides) which is meant to be there. At the front, on one side or the other, you'll see a smaller bar which is part of the hinge for the recline handle. It's slipped sideways and into one of the recline mechanism slots.

Jiggle the recline handle and push the hinge bar back into the centre. It might help to use gravity - lay the seat on its side with the blocking bar uppermost. I can't see a way to prevent this slipping out again over time.

Snap the base back on and replace the Torx screws.

Jan 03, 2010 | Baby & Toddler Car Seats

3 Answers

Booster seat

Converting the seat to a booster: (Alpha Omega Elite Deluxe 2004 version, Eddie Bauer)
After all said and done, the base can probably be left on, it helps to recline the chair when the child is asleep. If you want to leave it out, the manual says the base can be removed for narrow vehicle seats or airline use. Locate the center bar at the bottom of the seat, push the tab at the end of the bar and pull the bar out. The seat can then be separated from the base. The seat has a "kickstand" that can be pulled out to sit the seat upright. Put the bar back in the base so you don't lose it.

To remove the harness, remove the base first. Then from the back of the seat, unfasten the harness from the harness bracket. Store the bracket by looping it behind and around the back spine of the shell. You can unthread the harness from that point and pull it out. From the bottom of the seat, locate the buckle's metal clip. Insert the clip up through the shell and pad, from the front pull the buckle free from the shell. Lock latch plates into buckle for safekeeping.

Once the seat is converted to adult straps don't use the latch system; hook the hooks together to keep it from swinging around, and place the top anchorage strap behind the seat with the anchor hook under the seat.

Nov 09, 2007 | Eddie Bauer 3-In-1 with Latch

3 Answers

Shield reattachment

Well, I don't have a solution to getting it back on, but if you could tell me how to get the stupid thing off, I could maybe figure out how to get it back on for you. :) I can't find anything about it via Cosco either. grrrrr!

Aug 08, 2006 | Cosco Alpha Omega 22-180 - with Shield

Not finding what you are looking for?
Britax Marathon Logo

519 people viewed this question

Ask a Question

Usually answered in minutes!

Top Britax Baby & Toddler Car Seats Experts

Jennifer Rock
Jennifer Rock

Level 2 Expert

105 Answers


Level 3 Expert

3018 Answers

ray gallant

Level 3 Expert

34619 Answers

Are you a Britax Baby and Toddler Car Seat Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides