2024 gle450e issues
As for the ICE not turning off: I'm not sure where you are located, regarding outside air temps (and if it's gotten much colder in the last couple of weeks as it has here).
I presume that you are aware that, if the ICE has not been on, once it comes on, it will stay on until the engine is warm (an aspect of all PHEVs).
I did notice in one 2024 GLE 450e that I test drove a week or two ago (out of five different GLE 450e vehicles that I've test-driven so far) did seem to have an
issue in 50-degree outdoor temps of starting with the ICE on when parked (instead of all-electric mode as it should have), and the salesman couldn't figure out why it did that; the traction battery had a high state-of-charge, so being low on charge was not a factor.
It was disconcerting to me because one of the huge plusses of PHEVs is that we don't get gas fumes in our garage when starting up (and fumes thus into the house).
I'm hearing, from forums like this, that MB servicing is sub-par in general (I'm sure that there are better service departments and worse ones).
But after having had really good Volvo and Porsche service departments for many years now, I think back on those bad dealerships
that just made owning cars a headache.
As for the ICE not turning off: I'm not sure where you are located, regarding outside air temps (and if it's gotten much colder in the last couple of weeks as it has here).
I presume that you are aware that, if the ICE has not been on, once it comes on, it will stay on until the engine is warm (an aspect of all PHEVs).
I did notice in one 2024 GLE 450e that I test drove a week or two ago (out of five different GLE 450e vehicles that I've test-driven so far) did seem to have an
issue in 50-degree outdoor temps of starting with the ICE on when parked (instead of all-electric mode as it should have), and the salesman couldn't figure out why it did that; the traction battery had a high state-of-charge, so being low on charge was not a factor.
It was disconcerting to me because one of the huge plusses of PHEVs is that we don't get gas fumes in our garage when starting up (and fumes thus into the house).
I'm hearing, from forums like this, that MB servicing is sub-par in general (I'm sure that there are better service departments and worse ones).
But after having had really good Volvo and Porsche service departments for many years now, I think back on those bad dealerships
that just made owning cars a headache.
As for the ICE not turning off: I'm not sure where you are located, regarding outside air temps (and if it's gotten much colder in the last couple of weeks as it has here).
I presume that you are aware that, if the ICE has not been on, once it comes on, it will stay on until the engine is warm (an aspect of all PHEVs).
I did notice in one 2024 GLE 450e that I test drove a week or two ago (out of five different GLE 450e vehicles that I've test-driven so far) did seem to have an
issue in 50-degree outdoor temps of starting with the ICE on when parked (instead of all-electric mode as it should have), and the salesman couldn't figure out why it did that; the traction battery had a high state-of-charge, so being low on charge was not a factor.
It was disconcerting to me because one of the huge plusses of PHEVs is that we don't get gas fumes in our garage when starting up (and fumes thus into the house).
I'm hearing, from forums like this, that MB servicing is sub-par in general (I'm sure that there are better service departments and worse ones).
But after having had really good Volvo and Porsche service departments for many years now, I think back on those bad dealerships
that just made owning cars a headache.
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test drove with shop foreman on Wednesday.. I was able to get the vehicle to replicate the noise. He suspected it was not a relay but something vibrating under the front driver seat or floorboard.. fast forward to today and I get a call from my service advisor and he informs me that they think the problem is the relay under the gas pedal that regulates between the modes. They have to order the part from Germany and will update me on Monday with an expected timeframe. Fingers crossed it’s not a long wait
Last edited by 702gle450; Dec 2, 2023 at 02:56 AM.
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test drove with shop foreman on Wednesday.. I was able to get the vehicle to replicate the noise. He suspected it was not a relay but something vibrating under the front driver seat or floorboard.. fast forward to today and I get a call from my service advisor and he informs me that they think the problem is the relay under the gas pedal that regulates between the modes. They have to order the part from Germany and will update me on Monday with an expected timeframe. Fingers crossed it’s not a long wait




Happy to hear MB will buy it back with no further delay. You certainly gave them the opportunity to address the problem. Happens with all brands as @Ron.s will tell you. Bad experience and hassle but now you can start fresh. Cheers!
We bought a "used" 2024 GLE450e on 5/10 from a dealer. It had had what I think is a common problem(cooling system for the battery maybe - code P0A9300).. Anyway, I think it was repaired under warranty, the total was about $22,000 of repairs..
The original owner had returned it to the dealer with about 4000 miles on it, and we bought it from the dealer, and got them to certify it.
Oddly, they gave us a copy of the service information from the prior owner, and all the work they did on it.
Forward to Yesterday, and I noticed it has a CEL. I have an old OBDII reader, which i plugged in, and the code was P2E98 with a description of "fuel air metering auxiliary emission controls". I'll guess that the description is actually wrong(because the reader is older), but I'm assuming the P2E98 code is actually the correct one.
I called Mercedes (the dealer we bought it from) and asked them to "look up the code", which they said they can't do..
I poked around, and could not find anything whatsoever on this code or even any "P2E" codes..
Has anyone seen this code?
My first inclination was to tighten the gas cap and reset it (in case it's the code you get when the gas cap is loose)..
Thoughts?
I just found the following on KBB.Com under OBDII codes(generic): "P2E98 - Charge Port Door B Position Sensor Circuit". That would make a lot more sense as we charge it at home every time we get back. Not sure why that would cause a check engine light though..
Last edited by MattCorrow; Jun 7, 2024 at 08:03 AM. Reason: found some information
We bought a "used" 2024 GLE450e on 5/10 from a dealer. It had had what I think is a common problem(cooling system for the battery maybe - code P0A9300).. Anyway, I think it was repaired under warranty, the total was about $22,000 of repairs..
The original owner had returned it to the dealer with about 4000 miles on it, and we bought it from the dealer, and got them to certify it.
Oddly, they gave us a copy of the service information from the prior owner, and all the work they did on it.
Forward to Yesterday, and I noticed it has a CEL. I have an old OBDII reader, which i plugged in, and the code was P2E98 with a description of "fuel air metering auxiliary emission controls". I'll guess that the description is actually wrong(because the reader is older), but I'm assuming the P2E98 code is actually the correct one.
I called Mercedes (the dealer we bought it from) and asked them to "look up the code", which they said they can't do..
I poked around, and could not find anything whatsoever on this code or even any "P2E" codes..
Has anyone seen this code?
My first inclination was to tighten the gas cap and reset it (in case it's the code you get when the gas cap is loose)..
Thoughts?
I just found the following on KBB.Com under OBDII codes(generic): "P2E98 - Charge Port Door B Position Sensor Circuit". That would make a lot more sense as we charge it at home every time we get back. Not sure why that would cause a check engine light though..
Last edited by stktyz33; Jun 7, 2024 at 11:24 AM.
I understand that I should not rely on a cheap generic OBDII reader, but my understanding is that even if I'm not getting the correct description, it should be providing the exact code that was registered.
In the past, there were on-line resources where you could look up a specific error code for a specific vehicle. I've been able to find a "comprehensive Mercedes OBDII error list", but it does not contain any P2E codes. If that list is in fact "comprehensive", then the error code must be a generic one, not specific to Mercedes, right?
Oh, it's not about the reader being cheap necessarily, it's about the fact that most basic readers can only access a fraction of the modules of your car as they don't have required HW capability (DOIP) or an authorization (certificates) to access the module via it (MY 2024 is locked car). So, when you pull a generic CEL code, you may not get anything useful info from it because it got triggered from a chain of more specific upstream codes. The service departments can access full info and get manufacturer's suggested remediation steps. Basically, treat this code as a nudge to go to a dealer to get more info. The car is still under warranty, so let them deal with it.
Oh, it's not about the reader being cheap necessarily, it's about the fact that most basic readers can only access a fraction of the modules of your car as they don't have required HW capability (DOIP) or an authorization (certificates) to access the module via it (MY 2024 is locked car). So, when you pull a generic CEL code, you may not get anything useful info from it because it got triggered from a chain of more specific upstream codes. The service departments can access full info and get manufacturer's suggested remediation steps. Basically, treat this code as a nudge to go to a dealer to get more info. The car is still under warranty, so let them deal with it.
Understood about the CEL and cheap reader. After seeing the code, I reset it, so there would be nothing there. If it appears again, we'll get it to the dealer to diagnose.
Since this vehicle had quite a bit of service to resolve the battery cooling issue, we're watching it carefully, and glad it's certified.
Not being paranoid, just trying to be careful..
Thanks!
Because it appeared to happen in electric mode, I figured if I reset it, and there was actually a problem, it'd reappear almost immediately, and we'd take it to the dealer.
Having to take it to the dealer is always painful. The closest dealer is an hour away, which means it's 3-4 hours, 2 vehicles and 2 drivers to both drop it off, then another 3-4 hours, 2 vehicles and drivers to pick it up, in addition to the couple hundred dollars for them to "diagnose it", so I'd prefer to only take it to them if there is definitely a problem..
Thanks!




