GLE 450e: Warning Lights - "Performance Extremely Limited"
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,158
Likes: 1,770
From: Colorado
G550
Standard behavior. No one accepts fault for anything, if they do it will be used against them in court. I doubt the design engineers are clueless, but they aren't the ones solving issues like this nor do they have the power to fix it. I imagine the process looks something like this:
- Engineers design something
- It's too expensive
- Parts are changed
- Test to see that most of the time it works for 4 - 8 years
- Mass produce vehicle
- Issues arise and customers go to the dealer
- Dealer techs start changing parts, customers left out to dry
Newbie
Joined: Jan 2008
Posts: 8
Likes: 2
2005 C230 Sport
Mine told me the same thing on the second attempt to fix the issue. Same problem occurred within 5 miles of dealership from picking it up.
Newbie
Joined: Jan 2008
Posts: 8
Likes: 2
2005 C230 Sport
Has anyone had any success getting this fixed yet? Mine has been at the dealership for well over a month and apparently there is at least one more car in their possession with the same problem. First about a month ago it was "we're waiting for some parts to come from Germany that should be here at the end of the week", and then last week "waiting on a parts that should be here at the end of March". Perhaps they're not being truthful and it's really a known software issue?
Newbie
Joined: Jan 2008
Posts: 8
Likes: 2
2005 C230 Sport
That will not fix anything. They have already done that to mine as well as claiming to have found some wiring issue, coolant leaks, pump issues, etc. Problem came back immediately.
Newbie
Joined: Feb 2024
Posts: 11
Likes: 0
2024 GLE 450e
Yes the wiring issue, coolant leaks, pump issues are the exact things they told me and apparently "parts from Germany" take at least 6 weeks to get?!?! How did you get that claim started with MBUSA started to request a buy back? I have yet to hear anyone with this problem get it fixed yet.
Newbie
Joined: Jan 2008
Posts: 8
Likes: 2
2005 C230 Sport
The second time that I got my car back within 1-2 days the "Performance Extremely Limited" messages started to appear and then within the week it was back in limp mode with check engine light on. This was after parts replacement, cooling pumps, wiring, etc.
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Newbie
Joined: Feb 2024
Posts: 11
Likes: 0
2024 GLE 450e
I still haven't got mine back yet. About 6 weeks ago "parts from Germany should be here towards end of March". Then unfortunately yesterday morning from the service manager at my local Mercedes dealership "still waiting on 3 essential parts. Parts show back ordered with no ETA." So I'm left hanging. Losing hope but at the same time perhaps still have some hope knowing a couple have got their cars back and not reporting further issues. Cadikid would be awesome if you kept me posted on how it's going for you.
Super Member
Joined: Jul 2021
Posts: 791
Likes: 413
From: SWFL
2024 GLE 450, 2009 SLK 300
I still haven't got mine back yet. About 6 weeks ago "parts from Germany should be here towards end of March". Then unfortunately yesterday morning from the service manager at my local Mercedes dealership "still waiting on 3 essential parts. Parts show back ordered with no ETA." So I'm left hanging. Losing hope but at the same time perhaps still have some hope knowing a couple have got their cars back and not reporting further issues. Cadikid would be awesome if you kept me posted on how it's going for you.
Newbie
Joined: Feb 2024
Posts: 11
Likes: 0
2024 GLE 450e
Super Member
Joined: Jul 2017
Posts: 698
Likes: 154
From: Teaneck, NJ
2023 EQB300
My EQB is in shop for third time with "sensors disabled" and first time with Performance Extremely Limited. Based on the sensors, going for buy back and I think it is best just to start with the lemon law attorney. MBUSA will do absolutely nothing for consumer other than delay, obfuscate and deny. Attorney will be much more effective.
Junior Member
Joined: Jul 2022
Posts: 44
Likes: 13
2022 GLE450
There is a recall for this I believe. I received a notice today.
A recall notice came today about a software update. I’ve scheduled with dealership for this week.
QUOTE=thecadillacboy;8919096]Hey,
Mine's in the shop and they are having trouble diagnosing the problem; they're focused on the coolant systems. It has 4k miles on it. Has anyone else seen or hear about this one?
Check Engine light is on. Turtle Light is on. Notification says "Performance Extremely Limited"[/QUOTE]
t
QUOTE=thecadillacboy;8919096]Hey,
Mine's in the shop and they are having trouble diagnosing the problem; they're focused on the coolant systems. It has 4k miles on it. Has anyone else seen or hear about this one?
Check Engine light is on. Turtle Light is on. Notification says "Performance Extremely Limited"[/QUOTE]
t
Newbie
Joined: Apr 2024
Posts: 2
Likes: 0
2024 GLE450E
Performance Extremely Limited
So what is the fix? In Canada we don't have the best lemon laws but this is extremely disheartening. My "performance extremely limited" window came up when applying the brakes on Electronic or Hybrid mode. The turtle and engine icons came up, then I switch to Battery Hold mode and the turtle icon goes off and the engine light remains on. Battery level doesn't seem to matter - 20-100% charged. Its tripped when the brakes are applied. Now, its in the shop with the technicians trying to re-create the symptoms with the computer attached to the car while driving. Total 2 x and 5 days so far and I'm in a loaner. Do we have a definitive fix? Please respond, thanks everyone.
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,158
Likes: 1,770
From: Colorado
G550
What is especially annoying about problems such as this is that somewhere deep in the bowels of the world's greatest car company (as in "the best or nothing") some software engineer constructed some fault detection code that evaluates the status of several sensors that make an algorithmic determination of the vehicle's unfit to drive normally state. This fault information was subsequently (a) never documented, (b) never published, (c) never communicated to dealerships, (d) never taught to service techs, or (e) more than one of (a) through (d). Apparently nobody in engineering saw any value in using fault detection for anything but disabling the vehicle so it could remain parked indefinitely at a dealership.
I worked with software engineers throughout my career, and miraculously avoided assaulting any of them.
I worked with software engineers throughout my career, and miraculously avoided assaulting any of them.
MBWorld Fanatic!
Joined: Oct 2009
Posts: 7,018
Likes: 2,199
From: Colorado
'21 AMG53 wDPP & ARC, 19 GLC300 - Former-03 C240,2 ML BlueTecs,20 GLE450 E-ABC,15 Cayenne D,17 Macan
What is especially annoying about problems such as this is that somewhere deep in the bowels of the world's greatest car company (as in "the best or nothing") some software engineer constructed some fault detection code that evaluates the status of several sensors that make an algorithmic determination of the vehicle's unfit to drive normally state. This fault information was subsequently (a) never documented, (b) never published, (c) never communicated to dealerships, (d) never taught to service techs, or (e) more than one of (a) through (d). Apparently nobody in engineering saw any value in using fault detection for anything but disabling the vehicle so it could remain parked indefinitely at a dealership.
I worked with software engineers throughout my career, and miraculously avoided assaulting any of them.
I worked with software engineers throughout my career, and miraculously avoided assaulting any of them.
Or that It's software, not hardware.
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,158
Likes: 1,770
From: Colorado
G550
While I agree that software engineers have forgotten how to program (now they call it "coding," which is just plugging in subroutines and hoping they work without excessive computing load), I don't think failures are as predictable as you say.
Or that It's software, not hardware.
Or that It's software, not hardware.
Newbie
Joined: Mar 2024
Posts: 5
Likes: 1
GLE450e
Sad to say the fix didn't last. The last (second attempt - 60 days) fix involved removing the complete front subframe to replace "power electronics", that was after replacing all the coolant pumps and radiators and reflash at the first attempt. Still getting all three lights/messages but they appear to occur in very specific conditions. High humidity (active rain or damp), slight road downgrade, mild brake application. Pedal drops a few inches, brakes don't seem to grab effectively and dash lights up like a Christmas tree. The brakes do work its just the muscle memory of how hard you need to apply the brakes goes out the window when the pedal drops. Release brakes, problem goes away and may or may not recur. This is happening consistently on the same stretch of commute in inclement weather conditions and sporadically in similar conditions but not on the commute road. Two days ago it happened to me as I pulled in to a gas station, damp out, slight downhill parking lot, slowing for parking and thought I was going to hit the concrete post protecting the storefront when the brake pedal dropped on me. Sun out and problem seems to not be there. Beyond frustrated but highly curious if anyone else has noticed a "pattern" of when this occurs. It is always damp out and downgrade when it happens to us it seems.
Super Member
Joined: Apr 2011
Posts: 541
Likes: 232
2021 GLS580 | 2011 ML350 BlueTec | 2009 Pontiac G8 GXP
Sad to say the fix didn't last. The last (second attempt - 60 days) fix involved removing the complete front subframe to replace "power electronics", that was after replacing all the coolant pumps and radiators and reflash at the first attempt. Still getting all three lights/messages but they appear to occur in very specific conditions. High humidity (active rain or damp), slight road downgrade, mild brake application. Pedal drops a few inches, brakes don't seem to grab effectively and dash lights up like a Christmas tree. The brakes do work its just the muscle memory of how hard you need to apply the brakes goes out the window when the pedal drops. Release brakes, problem goes away and may or may not recur. This is happening consistently on the same stretch of commute in inclement weather conditions and sporadically in similar conditions but not on the commute road. Two days ago it happened to me as I pulled in to a gas station, damp out, slight downhill parking lot, slowing for parking and thought I was going to hit the concrete post protecting the storefront when the brake pedal dropped on me. Sun out and problem seems to not be there. Beyond frustrated but highly curious if anyone else has noticed a "pattern" of when this occurs. It is always damp out and downgrade when it happens to us it seems.
Newbie
Joined: Feb 2024
Posts: 11
Likes: 0
2024 GLE 450e
Sad to say the fix didn't last. The last (second attempt - 60 days) fix involved removing the complete front subframe to replace "power electronics", that was after replacing all the coolant pumps and radiators and reflash at the first attempt. Still getting all three lights/messages but they appear to occur in very specific conditions. High humidity (active rain or damp), slight road downgrade, mild brake application. Pedal drops a few inches, brakes don't seem to grab effectively and dash lights up like a Christmas tree. The brakes do work its just the muscle memory of how hard you need to apply the brakes goes out the window when the pedal drops. Release brakes, problem goes away and may or may not recur. This is happening consistently on the same stretch of commute in inclement weather conditions and sporadically in similar conditions but not on the commute road. Two days ago it happened to me as I pulled in to a gas station, damp out, slight downhill parking lot, slowing for parking and thought I was going to hit the concrete post protecting the storefront when the brake pedal dropped on me. Sun out and problem seems to not be there. Beyond frustrated but highly curious if anyone else has noticed a "pattern" of when this occurs. It is always damp out and downgrade when it happens to us it seems.
