GLE450e Hybrid performance problems
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GLE450e Hybrid performance problems
My wife has a 2024 GLE450e Plug in Hybrid. Since it has been cold (Maryland) we have had 2 check engine lights come on. Mercedes said they were for a Hybrid Battery cooling issue. This week we took it in and Mercedes found that the Freon was low. We picked it up on Thursday and the car drove great. On Friday morning (17 degrees), as she started up a hill, the car slowed and the Performance Extremely Limited light came on. Immediately after, the power picked back up but she had slowed considerably. Has anyone else experienced this with the Hybrid system? Thank you.
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
My wife has a 2024 GLE450e Plug in Hybrid. Since it has been cold (Maryland) we have had 2 check engine lights come on. Mercedes said they were for a Hybrid Battery cooling issue. This week we took it in and Mercedes found that the Freon was low. We picked it up on Thursday and the car drove great. On Friday morning (17 degrees), as she started up a hill, the car slowed and the Performance Extremely Limited light came on.
Immediately after, the power picked back up but she had slowed considerably.
Has anyone else experienced this with the Hybrid system?
Thank you.
Immediately after, the power picked back up but she had slowed considerably.
Has anyone else experienced this with the Hybrid system?
Thank you.
-- You can let the specialist deal with it
-- or use a scanner to retrieve the exact fault code yourself.
Guessing is counterproductive.
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Same for me 2024 Gle450e with 5000k miles on it.
My wife has a 2024 GLE450e Plug in Hybrid. Since it has been cold (Maryland) we have had 2 check engine lights come on. Mercedes said they were for a Hybrid Battery cooling issue. This week we took it in and Mercedes found that the Freon was low. We picked it up on Thursday and the car drove great. On Friday morning (17 degrees), as she started up a hill, the car slowed and the Performance Extremely Limited light came on. Immediately after, the power picked back up but she had slowed considerably. Has anyone else experienced this with the Hybrid system? Thank you.
Mercedes do not know how to solve this issues.
My car is at the shop for 2 weeks.
there a lot of cases Check out this recall
573 Safety Recall Report
Last edited by flamour; Jan 14, 2025 at 07:09 PM.
Newbie
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Me too.
I'm in the same boat with a 6 week old car, less that 2k miles. Been in the shop for a week. The service manager mentioned the coolant pump and software update, as others have heard. He also said this only happens when it's cold and they have had several cars brought in with the cold snap we are having. But, the truth is they don't know what is going on as evidenced by the only update they can give is that they are still looking into it and need more time.
I spoke directly to the Service Manager, in person, and was very clear that I don't want the car back. This is a known issue with the vehicle and, frankly, extremely dangerous. Fortunately, I haven't been on the highway when my car unexpectedly drops from cruising speed down to 15 mph (without so much as break lights to warn the driver behind me) and won't accelerate again. Dangerous for me and the cars around me. It's not worth the risk. I am not making Mercedes' problem my own.
The dealership said they were putting in a ticket directly with MBUSA. They gave me their number to call, too. I am also writing a letter and sending certified mail to MBUSA, as required by Maryland's Lemon Law process.
I spoke directly to the Service Manager, in person, and was very clear that I don't want the car back. This is a known issue with the vehicle and, frankly, extremely dangerous. Fortunately, I haven't been on the highway when my car unexpectedly drops from cruising speed down to 15 mph (without so much as break lights to warn the driver behind me) and won't accelerate again. Dangerous for me and the cars around me. It's not worth the risk. I am not making Mercedes' problem my own.
The dealership said they were putting in a ticket directly with MBUSA. They gave me their number to call, too. I am also writing a letter and sending certified mail to MBUSA, as required by Maryland's Lemon Law process.
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GLE 580
I'm in the same boat with a 6 week old car, less that 2k miles. Been in the shop for a week. The service manager mentioned the coolant pump and software update, as others have heard. He also said this only happens when it's cold and they have had several cars brought in with the cold snap we are having. But, the truth is they don't know what is going on as evidenced by the only update they can give is that they are still looking into it and need more time.
I spoke directly to the Service Manager, in person, and was very clear that I don't want the car back. This is a known issue with the vehicle and, frankly, extremely dangerous. Fortunately, I haven't been on the highway when my car unexpectedly drops from cruising speed down to 15 mph (without so much as break lights to warn the driver behind me) and won't accelerate again. Dangerous for me and the cars around me. It's not worth the risk. I am not making Mercedes' problem my own.
The dealership said they were putting in a ticket directly with MBUSA. They gave me their number to call, too. I am also writing a letter and sending certified mail to MBUSA, as required by Maryland's Lemon Law process.
I spoke directly to the Service Manager, in person, and was very clear that I don't want the car back. This is a known issue with the vehicle and, frankly, extremely dangerous. Fortunately, I haven't been on the highway when my car unexpectedly drops from cruising speed down to 15 mph (without so much as break lights to warn the driver behind me) and won't accelerate again. Dangerous for me and the cars around me. It's not worth the risk. I am not making Mercedes' problem my own.
The dealership said they were putting in a ticket directly with MBUSA. They gave me their number to call, too. I am also writing a letter and sending certified mail to MBUSA, as required by Maryland's Lemon Law process.
https://www.nhtsa.gov/report-a-safet...clsrc=ds#index
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I am also having this problem. My 2024GLE450e is currently being serviced for the fourth time in 2 months. I dropped it off 19 days ago and was supposed to get it back today but apparently it is still having the same issues. Both coolant systems have been replaced (I didn’t know there were two). Now they are opening a case with MB, I’m not sure what that means. From everything I’ve read on this site, there doesn’t appear to be a fix. I’ve been without the vehicle for a total of 35 days thus far.
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Newbie
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I am also having this problem. My 2024GLE450e is currently being serviced for the fourth time in 2 months. I dropped it off 19 days ago and was supposed to get it back today but apparently it is still having the same issues. Both coolant systems have been replaced (I didn’t know there were two). Now they are opening a case with MB, I’m not sure what that means. From everything I’ve read on this site, there doesn’t appear to be a fix. I’ve been without the vehicle for a total of 35 days thus far.
Newbie
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GLE 450e
We also have a 2024 GLE 45oe and have had the "Performance Extremely Limited" issue twice. This is a shame as we like the car and like the concept of a hybrid. The car is now in the shop for the second time and, per them, it may be a cooling pump issue. In reading through the various comments on this problem within this forum, I see that some folks are commenting that the problem may be triggered when you apply the brakes. For me, for this second event, the warning came on as I was putting on the brakes when exiting from the freeway. So... maybe there is truly an odd connection between braking and this performance issue. Oh, according to the service manager, the folks in Germany are aware of the problem and the newer cars (2025?) shouldn't have this problem.
Newbie
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GLE 450e
GLE 450e - Performance Extremely Limited issue
I have now had this "Problem Extremely Limited" problem twice with my 2024 GLE450e. While I give praise to how helpful and cooperative the service team is here in Cincinnati, it is still frustrating. The first time this happened they said the problem was with the cooling system and it was now fixed. Three weeks later the problem occurred again. In reading through the various comments in this forum I see some people stating that the issue may be triggered when applying the brakes -- for me, for the second event, the issue arose when I was braking when coming off of the highway so maybe there is a connection. Luckily, I was close to the dealership and was able to limp on in. According to the service manager, the folks in Germany are aware of this. I believe he said that for the newer cars (2025?) that this problem was resolved. For me, I am hoping to get financial assistance from Mercedes to be able to switch out from this one to another car of theirs. I like the Mercedes brand but this issue is very disturbing.
Newbie
Joined: Jan 2025
Posts: 4
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I have now had this "Problem Extremely Limited" problem twice with my 2024 GLE450e. While I give praise to how helpful and cooperative the service team is here in Cincinnati, it is still frustrating. The first time this happened they said the problem was with the cooling system and it was now fixed. Three weeks later the problem occurred again. In reading through the various comments in this forum I see some people stating that the issue may be triggered when applying the brakes -- for me, for the second event, the issue arose when I was braking when coming off of the highway so maybe there is a connection. Luckily, I was close to the dealership and was able to limp on in. According to the service manager, the folks in Germany are aware of this. I believe he said that for the newer cars (2025?) that this problem was resolved. For me, I am hoping to get financial assistance from Mercedes to be able to switch out from this one to another car of theirs. I like the Mercedes brand but this issue is very disturbing.
Unfortunately, I have a 2025 and am having the problem. Do, it hasn't been corrected. I had my car for a month before it went to the shop. It's been there for almost 2 weeks.
Newbie
Joined: Jan 2025
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mB 450e
We also have a 2024 GLE 45oe and have had the "Performance Extremely Limited" issue twice. This is a shame as we like the car and like the concept of a hybrid. The car is now in the shop for the second time and, per them, it may be a cooling pump issue. In reading through the various comments on this problem within this forum, I see that some folks are commenting that the problem may be triggered when you apply the brakes. For me, for this second event, the warning came on as I was putting on the brakes when exiting from the freeway. So... maybe there is truly an odd connection between braking and this performance issue. Oh, according to the service manager, the folks in Germany are aware of the problem and the newer cars (2025?) shouldn't have this problem.
Have a 2025 midel with the same issues- waiting resolution
Super Member
Joined: Jul 2017
Posts: 698
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From: Teaneck, NJ
2023 EQB300
I have been posting across various forums about similar issues with my 2023 EQB 300 and have concluded the MB really has some issues with its EV and PHEV offerings. I cannot say how widespread the issues might be because what one will see on forums are the problems, not the kudos. I think the greater issue here is how Mercedes is handling these problems with multiple visits to the shop, service departments befuddled while awaiting a response from MB, assurances it has been fixed (and this is not to reflect badly upon the dealers who have tried their best) and ultimately making buy-backs difficult or even just rejecting by-back claims. I hope you can get them to buy it back whether through lemon law claim you file yourself or through attorney. I used an attorney who said MB rejected the claim with no reason given. Certainly if mine had been lemoned, I would not have replaced it with another Mercedes EV or PHEV.
Newbie
Joined: Jan 2025
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COOLANT is the issue
I have been posting across various forums about similar issues with my 2023 EQB 300 and have concluded the MB really has some issues with its EV and PHEV offerings. I cannot say how widespread the issues might be because what one will see on forums are the problems, not the kudos. I think the greater issue here is how Mercedes is handling these problems with multiple visits to the shop, service departments befuddled while awaiting a response from MB, assurances it has been fixed (and this is not to reflect badly upon the dealers who have tried their best) and ultimately making buy-backs difficult or even just rejecting by-back claims. I hope you can get them to buy it back whether through lemon law claim you file yourself or through attorney. I used an attorney who said MB rejected the claim with no reason given. Certainly if mine had been lemoned, I would not have replaced it with another Mercedes EV or PHEV.
i love this car 😊
Senior Member
Joined: Apr 2012
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2024 GLE 450e
We also have a 2024 GLE 45oe and have had the "Performance Extremely Limited" issue twice. This is a shame as we like the car and like the concept of a hybrid. The car is now in the shop for the second time and, per them, it may be a cooling pump issue. In reading through the various comments on this problem within this forum, I see that some folks are commenting that the problem may be triggered when you apply the brakes. For me, for this second event, the warning came on as I was putting on the brakes when exiting from the freeway. So... maybe there is truly an odd connection between braking and this performance issue. Oh, according to the service manager, the folks in Germany are aware of the problem and the newer cars (2025?) shouldn't have this problem.
if in fact Germany is aware of the problem and newer cars won’t have the problem I would expect;
1. They would inform dealerships exactly how to repair the first time. Nobody should have to have two failures.
2. There should be a recall. This type of a problem can cause unexpected safety hazards.
Newbie
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GLE450e performance problems
We purchased ours new in September 2024. At around 3k miles, it went from highway speeds down to a stop and displayed the turtle and other warnings noted by others on this thread. Ours was in the shop for around 3 weeks. It has had one issue since then, where in electric mode the "gas" pedal stopped responding and the car would go no faster than 60. Fingers crossed that it doesn't end up another lemon like so many others have described. Regardless, it is very unnerving to have a vehicle that might just stop on the highway without warning or otherwise lose power creating a dangerous situation. Here in WA, the lemon law applies if its 30+ days in the shop or they have failed to fix an unsafe condition after several attempts.
Senior Member
Joined: Apr 2012
Posts: 260
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2024 GLE 450e
We purchased ours new in September 2024. At around 3k miles, it went from highway speeds down to a stop and displayed the turtle and other warnings noted by others on this thread. Ours was in the shop for around 3 weeks. It has had one issue since then, where in electric mode the "gas" pedal stopped responding and the car would go no faster than 60. Fingers crossed that it doesn't end up another lemon like so many others have described. Regardless, it is very unnerving to have a vehicle that might just stop on the highway without warning or otherwise lose power creating a dangerous situation. Here in WA, the lemon law applies if it’s 30+ days in the shop or they have failed to fix an unsafe condition after several attempts.
Newbie
Joined: Mar 2025
Posts: 1
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My wife has a 2024 GLE450e Plug in Hybrid. Since it has been cold (Maryland) we have had 2 check engine lights come on. Mercedes said they were for a Hybrid Battery cooling issue. This week we took it in and Mercedes found that the Freon was low. We picked it up on Thursday and the car drove great. On Friday morning (17 degrees), as she started up a hill, the car slowed and the Performance Extremely Limited light came on. Immediately after, the power picked back up but she had slowed considerably. Has anyone else experienced this with the Hybrid system? Thank you.
Super Member
Joined: Jul 2017
Posts: 698
Likes: 154
From: Teaneck, NJ
2023 EQB300
Lemon law. This has been a frequent occurrence with my eqb300. My lawyer lost the lemon law case but maybe you will have better luck. They cannot repair the problem. MB offers excuses which the dealer is forced to parrot to you. Do your best to get out of these problematic vehicles
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