Help with Gl350
Thread Starter
Newbie
Joined: Mar 2010
Posts: 3
Likes: 0
S420
Help with Gl350
Hi everyone I would like some help or input as to what is going with my car. The car doesn't shift or pass a certain rpm and is something that is intermittent. I have taken it to the dealership and they say nothing can be done because no error codes are being stored. I have attached a video of the car with the problem. Thanks in advance.
Senior Member
Joined: Aug 2014
Posts: 299
Likes: 20
From: HHI, SC
2002 C4 Cab, 2014 Audi A5 cab, 2017 X5 35d
Could be some problem with turbo (lag). I know that flooring the accelerator @ 65 mph results in a very slow increase in speed. Most of the torque in this vehicle is at the lower end of the range. For example 20 to 60 is good but 60 to 80 seems to take forever. It's the nature of the beast.
MBWorld Fanatic!
Joined: Nov 2012
Posts: 6,130
Likes: 1,117
A gaggle of MB's
From the post - it sounds like the dealer could not diagnose - and they did nothing - is that correct ?
With a copy of the dealer invoice/work-order in hand - for the service date and reference # - call Mercedes Customer Care M-F normal office hrs East Coast Time (800) 367-6732 - and tell them that dealer has not adequately treated this Safety Problem - and that you want diagnosis and service to correct this service problem. Make sure you give them a tel# you can be reached w/voicemail or text.
That will start back-channel from MB to the dealer - within 24hrs I epxect that dealer will call you to get your rig back in.
Keep the beat !
With a copy of the dealer invoice/work-order in hand - for the service date and reference # - call Mercedes Customer Care M-F normal office hrs East Coast Time (800) 367-6732 - and tell them that dealer has not adequately treated this Safety Problem - and that you want diagnosis and service to correct this service problem. Make sure you give them a tel# you can be reached w/voicemail or text.
That will start back-channel from MB to the dealer - within 24hrs I epxect that dealer will call you to get your rig back in.
Keep the beat !
Thread Starter
Newbie
Joined: Mar 2010
Posts: 3
Likes: 0
S420
From the post - it sounds like the dealer could not diagnose - and they did nothing - is that correct ?
With a copy of the dealer invoice/work-order in hand - for the service date and reference # - call Mercedes Customer Care M-F normal office hrs East Coast Time (800) 367-6732 - and tell them that dealer has not adequately treated this Safety Problem - and that you want diagnosis and service to correct this service problem. Make sure you give them a tel# you can be reached w/voicemail or text.
That will start back-channel from MB to the dealer - within 24hrs I epxect that dealer will call you to get your rig back in.
Keep the beat !
With a copy of the dealer invoice/work-order in hand - for the service date and reference # - call Mercedes Customer Care M-F normal office hrs East Coast Time (800) 367-6732 - and tell them that dealer has not adequately treated this Safety Problem - and that you want diagnosis and service to correct this service problem. Make sure you give them a tel# you can be reached w/voicemail or text.
That will start back-channel from MB to the dealer - within 24hrs I epxect that dealer will call you to get your rig back in.
Keep the beat !
Super Member
Joined: Mar 2015
Posts: 663
Likes: 49
From: Bucks Cty, PA
2015 gl450
Hesitation/studer/bucking/sluggish performance seems to be a very common complaint with all MB models running their 7G transmissions, especially on a cold start.
I've experienced it, not to your extent, but I've jumped out into traffic only to find the truck hang up at ~2k rpm's and not want to go anywhere. My truck will actually buck for maybe 5 seconds before picking up the rpm's.
More than a few threads on this forum, all with the very similar experiences.
Fab gave some great advice. Keep us updated.
I've experienced it, not to your extent, but I've jumped out into traffic only to find the truck hang up at ~2k rpm's and not want to go anywhere. My truck will actually buck for maybe 5 seconds before picking up the rpm's.
More than a few threads on this forum, all with the very similar experiences.
Fab gave some great advice. Keep us updated.
Newbie
Joined: Mar 2016
Posts: 11
Likes: 1
GL350 x166
this could be a number of different things. Your transmission goes into what they call "limp mode" to prevent damage in an event there is a malfunction with your vehicle.
I had a very similar issue and took it to the dealer 3 times and they couldn't diagnose it. The issue is that when you shut the car off and restart again it may clear the codes and car goes back to working fine. Finally it happened one day and I drove it straight to the MB service dept. Without turning the car off they diagnosed the car and the codes came back as having a faulty "Crank Shaft Position Sensor". They replaced under warranty and the car runs like new again.
good luck.
I had a very similar issue and took it to the dealer 3 times and they couldn't diagnose it. The issue is that when you shut the car off and restart again it may clear the codes and car goes back to working fine. Finally it happened one day and I drove it straight to the MB service dept. Without turning the car off they diagnosed the car and the codes came back as having a faulty "Crank Shaft Position Sensor". They replaced under warranty and the car runs like new again.
good luck.
