GLS550 Noise when engine shuts off
Thread Starter
Junior Member
Joined: Jul 2018
Posts: 38
Likes: 7
23 Ram 2500 / 21 GLC 63 (wife's)
GLS550 Noise when engine shuts off
hi all. it seems like i only come back on when i have an issue or when i'm buying a replacement car. i love this forum. thanks to everyone who contributes. i have received a ton of help here.
so we picked up this 17 GLS550 back in April of 21 at a non-MB used car lot. we then added the 7/100 ELW with Jeff Jackson.
the noise in the video seems to be coming from the right front engine compartment area. it happens every time the vehicle is shut down. doesn't matter if it was driven, or even put into gear. simply shutting the engine off makes the noise. video of the noise is
Any ideas what that is? is that normal? our GL550 never did that.
Thanks.
so we picked up this 17 GLS550 back in April of 21 at a non-MB used car lot. we then added the 7/100 ELW with Jeff Jackson.
the noise in the video seems to be coming from the right front engine compartment area. it happens every time the vehicle is shut down. doesn't matter if it was driven, or even put into gear. simply shutting the engine off makes the noise. video of the noise is
Any ideas what that is? is that normal? our GL550 never did that.
Thanks.
Thread Starter
Junior Member
Joined: Jul 2018
Posts: 38
Likes: 7
23 Ram 2500 / 21 GLC 63 (wife's)
thank you.
i was concerned because our GL550 never did that.
i have to bring the car in for service soon. the SAs at this dealership routinely blow me off because i know very little about cars. just trying to get as much info as possible prior to that.
i was concerned because our GL550 never did that.
i have to bring the car in for service soon. the SAs at this dealership routinely blow me off because i know very little about cars. just trying to get as much info as possible prior to that.
Thread Starter
Junior Member
Joined: Jul 2018
Posts: 38
Likes: 7
23 Ram 2500 / 21 GLC 63 (wife's)
Thread Starter
Junior Member
Joined: Jul 2018
Posts: 38
Likes: 7
23 Ram 2500 / 21 GLC 63 (wife's)
Ummmm...Solved??
the car was at the dealership today. as an aside, the wife dropped it off. they either didn't find anything wrong or didn't look for anything related to this noise.
car was all done, and i phoned them to ask about where the noise came from. SA said that the tech didn't find/hear anything abnormal. he asked, "is there any more information you can provide regarding it?" i told him that i posted a video to this forum. he asked for a link. i gave him my cell # and he said he would text me and i could just send the link.
he didn't text me. instead he texted the wife. ahhh the details....
i asked my wife for his # and texted him the vid.
instead of responding to my, he again chose my wife, called her and he said that it was normal "gas pressure discharge" from an engine component, similar to a truck releasing air brake pressure when it's stopped.
i am admittedly clueless, but, based on my dealings with this dealership, it seems pretty convenient that there's nothing wrong with my car...again. there's never an issue with my local dealership...unitl there is https://mbworld.org/forums/gl-class-...ml#post7545158
car was all done, and i phoned them to ask about where the noise came from. SA said that the tech didn't find/hear anything abnormal. he asked, "is there any more information you can provide regarding it?" i told him that i posted a video to this forum. he asked for a link. i gave him my cell # and he said he would text me and i could just send the link.
he didn't text me. instead he texted the wife. ahhh the details....
i asked my wife for his # and texted him the vid.
instead of responding to my, he again chose my wife, called her and he said that it was normal "gas pressure discharge" from an engine component, similar to a truck releasing air brake pressure when it's stopped.
i am admittedly clueless, but, based on my dealings with this dealership, it seems pretty convenient that there's nothing wrong with my car...again. there's never an issue with my local dealership...unitl there is https://mbworld.org/forums/gl-class-...ml#post7545158
Trending Topics
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
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
Newbie
Joined: May 2014
Posts: 4
Likes: 2
C230K, GL450, gl350
Sounds like the air compressor for the suspension. It vents the air to a tube from the compressor to under the fender. All air to the suspension comes in and goes out from the compressor.
You should have the compressor and suspension checked for leaks and proper operation.
I do most of the work on my cars.
2007 GL450 - 329K MILES - STILL RUNS.
2012 GL350 - 271K MILES - TOTALED.
2015 GL350 - 267K MILES - TOTALED.
2017 GLS450 - 321K MILES - NEEDS ENGIN WORK.
2018 GLS550 - 196K MILES
You should have the compressor and suspension checked for leaks and proper operation.
I do most of the work on my cars.
2007 GL450 - 329K MILES - STILL RUNS.
2012 GL350 - 271K MILES - TOTALED.
2015 GL350 - 267K MILES - TOTALED.
2017 GLS450 - 321K MILES - NEEDS ENGIN WORK.
2018 GLS550 - 196K MILES
Newbie
Joined: Dec 2023
Posts: 2
Likes: 0
1999 E430 Sport & 2103 GL550
Sounds like the air compressor for the suspension. It vents the air to a tube from the compressor to under the fender. All air to the suspension comes in and goes out from the compressor.
You should have the compressor and suspension checked for leaks and proper operation.
I do most of the work on my cars.
2007 GL450 - 329K MILES - STILL RUNS.
2012 GL350 - 271K MILES - TOTALED.
2015 GL350 - 267K MILES - TOTALED.
2017 GLS450 - 321K MILES - NEEDS ENGIN WORK.
2018 GLS550 - 196K MILES
You should have the compressor and suspension checked for leaks and proper operation.
I do most of the work on my cars.
2007 GL450 - 329K MILES - STILL RUNS.
2012 GL350 - 271K MILES - TOTALED.
2015 GL350 - 267K MILES - TOTALED.
2017 GLS450 - 321K MILES - NEEDS ENGIN WORK.
2018 GLS550 - 196K MILES
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
