Third Row Seat Stuck Upright and rattling/shaking seat
Thread Starter
Joined: Sep 2021
Posts: 2
Likes: 0
GLS 580
Third Row Seat Stuck Upright and rattling/shaking seat
Hi All
Just picked up a used 2021 GLS 580 on Tuesday..has 9000K miles. Traded in 2017 GLS 580. Having some issues after two days and already worried this was a bad idea.
First Issue:
When I went to fold down the third row seats the driver's side third row seat will not go down. You can hear the motor trying but no movement of the seat. With my previous GLS there was a manual release strap for the third row seats when they were broken. I do not see one on the new model...any advice? I have appointment at dealer but not till the 21st.
Second Issue:
The passenger side captains chair shakes pretty violently when on the highway. Anyone else? Easy fix?
I also have read on the posts of the wireless charging issues with the iphone 12 pro max..I am having the same issues. So I will also address with the dealer when I see them.
Thanks for any insight. Just disappointed...never had a single issue with the old model...now two days in and problems. Hoping all easy fixes when I bring in for service in a couple weeks.
Just picked up a used 2021 GLS 580 on Tuesday..has 9000K miles. Traded in 2017 GLS 580. Having some issues after two days and already worried this was a bad idea.
First Issue:
When I went to fold down the third row seats the driver's side third row seat will not go down. You can hear the motor trying but no movement of the seat. With my previous GLS there was a manual release strap for the third row seats when they were broken. I do not see one on the new model...any advice? I have appointment at dealer but not till the 21st.
Second Issue:
The passenger side captains chair shakes pretty violently when on the highway. Anyone else? Easy fix?
I also have read on the posts of the wireless charging issues with the iphone 12 pro max..I am having the same issues. So I will also address with the dealer when I see them.
Thanks for any insight. Just disappointed...never had a single issue with the old model...now two days in and problems. Hoping all easy fixes when I bring in for service in a couple weeks.
Junior Member
Joined: Apr 2020
Posts: 39
Likes: 17
2019 C43
Sorry to hear about your issues.
I have a new GLS450 with 300 miles and I also have the rattling issue with the passenger side captain chair. It does not rattle when someone is sitting on it.
I do not have any issues with the wireless charging (same phone as you). Make sure you are placing it with the top of the phone facing the driver side.
I do have an issue with Apple Car Play: it is basically unresponsive when using the track pad. No issues when using the touch screen.
I have a new GLS450 with 300 miles and I also have the rattling issue with the passenger side captain chair. It does not rattle when someone is sitting on it.
I do not have any issues with the wireless charging (same phone as you). Make sure you are placing it with the top of the phone facing the driver side.
I do have an issue with Apple Car Play: it is basically unresponsive when using the track pad. No issues when using the touch screen.
Super Member
Joined: Nov 2013
Posts: 762
Likes: 166
From: Oregon USA
2023 Mercedes EQS 580 SUV, 2023 Bentley Bentayga, 2023 Genesis GV60
My dealer spent about 30 minutes futzing with the left third row seat until it went down. Push the button, hear it unlatch, and nothing.
Junior Member
Joined: Jul 2021
Posts: 60
Likes: 6
GLS 450 2021
I have a 21 450 July production and I’ve had the third row seat stuck in the upright twice. I would sit there up to 5 mins in pushing the button on and off until somehow it finally went down.
I haven’t told the dealer yet because they won’t be able to reproduce it!
I also have the wireless charger issue with iPhone 12 Pro. It starts charging for 10 secs and goes off. I told my dealer and they said it works fine and is in spec. At this point I decided to live with it because I don’t really see myself using it. The space is just to small to deal with fitting it on the pad.
anyone have ac issues in that it always seems to be blowing full speed and trying to lower the fan speed doesn’t do much?
I haven’t told the dealer yet because they won’t be able to reproduce it!
I also have the wireless charger issue with iPhone 12 Pro. It starts charging for 10 secs and goes off. I told my dealer and they said it works fine and is in spec. At this point I decided to live with it because I don’t really see myself using it. The space is just to small to deal with fitting it on the pad.
anyone have ac issues in that it always seems to be blowing full speed and trying to lower the fan speed doesn’t do much?
Senior Member
Joined: May 2019
Posts: 330
Likes: 119
From: Tennessee
2015 MB S550 & 2020 MB GLS 450
I have a 21 450 July production and I’ve had the third row seat stuck in the upright twice. I would sit there up to 5 mins in pushing the button on and off until somehow it finally went down.
I haven’t told the dealer yet because they won’t be able to reproduce it!
I also have the wireless charger issue with iPhone 12 Pro. It starts charging for 10 secs and goes off. I told my dealer and they said it works fine and is in spec. At this point I decided to live with it because I don’t really see myself using it. The space is just to small to deal with fitting it on the pad.
I haven’t told the dealer yet because they won’t be able to reproduce it!
I also have the wireless charger issue with iPhone 12 Pro. It starts charging for 10 secs and goes off. I told my dealer and they said it works fine and is in spec. At this point I decided to live with it because I don’t really see myself using it. The space is just to small to deal with fitting it on the pad.
Member
Joined: Apr 2009
Posts: 124
Likes: 22
2004 sl600
I have a 21 450 July production and I’ve had the third row seat stuck in the upright twice. I would sit there up to 5 mins in pushing the button on and off until somehow it finally went down.
I haven’t told the dealer yet because they won’t be able to reproduce it!
I also have the wireless charger issue with iPhone 12 Pro. It starts charging for 10 secs and goes off. I told my dealer and they said it works fine and is in spec. At this point I decided to live with it because I don’t really see myself using it. The space is just to small to deal with fitting it on the pad.
anyone have ac issues in that it always seems to be blowing full speed and trying to lower the fan speed doesn’t do much?
I haven’t told the dealer yet because they won’t be able to reproduce it!
I also have the wireless charger issue with iPhone 12 Pro. It starts charging for 10 secs and goes off. I told my dealer and they said it works fine and is in spec. At this point I decided to live with it because I don’t really see myself using it. The space is just to small to deal with fitting it on the pad.
anyone have ac issues in that it always seems to be blowing full speed and trying to lower the fan speed doesn’t do much?
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Super Member
Joined: Jan 2002
Posts: 560
Likes: 50
From: New York City
Chevrolet Chevette, Ford Pinto, Pontiac Aztek, Trabant, Yugo GV (and all the worst cars ever built)
A lot of these issues could be solved with familiarity of the vehicle:
1) The rattling on the captain's chair on the passenger side means it is not "latched" on properly. Note that the right captain's chair can be folded forward, unlike the left captain's chair. On the right shoulder section of that chair is the control to move it forward or back, which is used whenever someone needs to access the third row. Make sure you continue to press that lever button until the chair is locked in place. Sometimes, people dont press it long enough until the seat is locked.
2) The aircon fan changes depending on certain settings on the controls and the zones. Read the manual and you will see that the fan speed changes depending on your settings.
3) The third row seat takes a while before it moves. Make sure the engine is running when you do this that way it does not require too much battery power.
.
1) The rattling on the captain's chair on the passenger side means it is not "latched" on properly. Note that the right captain's chair can be folded forward, unlike the left captain's chair. On the right shoulder section of that chair is the control to move it forward or back, which is used whenever someone needs to access the third row. Make sure you continue to press that lever button until the chair is locked in place. Sometimes, people dont press it long enough until the seat is locked.
2) The aircon fan changes depending on certain settings on the controls and the zones. Read the manual and you will see that the fan speed changes depending on your settings.
3) The third row seat takes a while before it moves. Make sure the engine is running when you do this that way it does not require too much battery power.
.
Last edited by Paxfobiscum; Sep 18, 2021 at 12:40 PM.
Super Member
Joined: Jan 2002
Posts: 560
Likes: 50
From: New York City
Chevrolet Chevette, Ford Pinto, Pontiac Aztek, Trabant, Yugo GV (and all the worst cars ever built)
Member
Joined: Apr 2009
Posts: 124
Likes: 22
2004 sl600
This is what the dealership told me too. Then I had to school them and show that it was not the case. The seat actually had some play in it such that once someone sat in the seat, the seat shifted. With the seat out of alignment, the motor cannot push the seat forward. The car is still at the dealership getting worked on so we will see.
Super Member
Joined: Jan 2002
Posts: 560
Likes: 50
From: New York City
Chevrolet Chevette, Ford Pinto, Pontiac Aztek, Trabant, Yugo GV (and all the worst cars ever built)
This is what the dealership told me too. Then I had to school them and show that it was not the case. The seat actually had some play in it such that once someone sat in the seat, the seat shifted. With the seat out of alignment, the motor cannot push the seat forward. The car is still at the dealership getting worked on so we will see.
Newbie
Joined: Feb 2010
Posts: 12
Likes: 4
AMG galore
Should I hold the switch for 30 seconds, 45 seconds or a minute before the 3rd row seat will start to move? I think I’ve only gone to about 30 seconds.
Member
Joined: Apr 2009
Posts: 124
Likes: 22
2004 sl600
Got my car back. Now the 3rd row seat works every time. The repair order says they had to replace the seat base. Required removing the seat and a bunch of associated parts. Took almost two weeks for the new seat base to arrive.
Newbie
Joined: Jul 2024
Posts: 1
Likes: 0
2021 GLS450
pump this up to see if anyone know the way to manually fold 3rd row seat
I have 2021 gls450, driver side of my 3rd row stuck in up position, anyway to manually fold it? I am going to see dealer soon, but just to see if anyone know how to fold manually .
