I week old and already this ...

Pabs58 · 03-06-2026, 09:32 PM

Just got my new 2026 750ex and already this problem.
I noticed this warning light when I received the car from the dealership but I attributed the light to something to do with the Hybrid system since it is above the battery milage information.
just a week old WTF ?
Not happy at all !!

BMW5and7 · 03-07-2026, 01:11 AM

Sorry about that. I think ISTA is a must-have for BMW owners. I have one and it's great; you just need to learn it but it's fairly simple.

No doubt that most manufacturers are canceling/discontinuing the PHEV variants. They seem to be very problematic. Even BMW PHEVs, like X5, have issues despite the massive experience that BMW has in PHEV over other brand.

Pabs58 · 03-07-2026, 01:55 AM

Quote:

Originally Posted by BMW5and7

Sorry about that. I think ISTA is a must-have for BMW owners. I have one and it's great; you just need to learn it but it's fairly simple.

No doubt that most manufacturers are canceling/discontinuing the PHEV variants. They seem to be very problematic. Even BMW PHEVs, like X5, have issues despite the massive experience that BMW has in PHEV over other brand.

Sorry I do not know what ISTA is ?

BMW5and7 · 03-07-2026, 02:24 AM

Quote:

Originally Posted by Pabs58

Sorry I do not know what ISTA is ?

It’s the official BMW diagnostic software (same exact one that dealer uses for literally everything including tests, calibration, scanning codes, and running test-plans. Doesn’t need any special hardware or tools. Just your personal PC and an eathernet to OBD cable. You’ll need to search it, download/find manuals, videos, etc and learn it (relatively easy, although it’s not something that I can easilyr provide step-by-step intructions for in a post)

Qsilver7 · 03-07-2026, 08:21 AM

CEL (aka Check Engine Light)...means that something in your emissisons system has created a fault code.

You can use a simple OBD II (generic) code reader to pull the code(s) to see what sensor(s) set the fault code. In most states, stores like AutoZone will read them for free...but I don't think they are allowed to do this in California, so you'll need to use an OBD II reader or software or an app that can pull diagnostic codes.

Or, if your BMW is still under warranty, simply stop by the service department and have them pull the code...again, this is simple hook up to the OBD II port.

There are too many different areas to even guess what may have set the fault...but since your didn't say the light was flashing...it's probably something simple like you gas cap isn't on correctly or there may be an issue with your grill flaps (lots of new BMWs have issues with them getting stuck).

But again, no need to panic yet...just get the codes read...and if you do have an OBD II scanner/reader...pull the code and simply google it. The US mandated OBD II regulations back in 1996...so you have decades of info that a google search can pull up if you type BMW XXXXX (where the 5 Xs = the actual 5 digit code)...or if you have a tool that can pull the BMW specific hex code (6 digits) you can use that too, to search for a possible cause/solution/service plan/etc.

Open one of the owners manuals you have at your service (the digital one embedded in iDrive or the downloadable PDF available from BMW Connected etc) to see why the Check Engine Light illuminates...and you should see that it mentions that it's related to emissions issues.

jettie1767 · 03-17-2026, 10:28 AM

Is the gas cap on tight?

Pabs58 · 03-21-2026, 12:40 AM

Quote:

Originally Posted by jettie1767

Is the gas cap on tight?

Thanks for all the info.
Took it to the dealer since is only two weeks old and they found that a problem with charging caused the warning light to come on .
all good now !

Qsilver7 · 03-25-2026, 10:46 AM

UR_LZN · 04-15-2026, 01:24 PM

(QUOTE) You can use a simple OBD II (generic) code reader to pull the code(s) to see what sensor(s) set the fault code. In most states, stores like AutoZone will read them for free...but I don't think they are allowed to do this in California, so you'll need to use an OBD II reader or software or an app that can pull diagnostic codes. (QUOTE)

Unless something recently changed here in Calif, the 'borrowed' OBDII reader is available at AutoZone. My daughter's T-Bird started throwing a code regarding the O2 sensor. We reset it (until I could repair it) and she was good fer now. She continued to reset it with 'borrowed' readers.

I never did get to fixing that issue. Instead she got a screamin' deal on a 3-Series and sold the 'Bird'! Oh-well, sometimes procrastination can work out!

03-06-2026, 09:32 PM	#1
Pabs58 Private 28 Rep 50 Posts Drives: Mini Cooper S, 2026 750Ex Join Date: Jul 2023 Location: Southern CA iTrader: (0)	I week old and already this ... Just got my new 2026 750ex and already this problem. I noticed this warning light when I received the car from the dealership but I attributed the light to something to do with the Hybrid system since it is above the battery milage information. just a week old WTF ? Not happy at all !! Attached Images
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03-07-2026, 01:11 AM	#2
BMW5and7 Colonel 2580 Rep 2,836 Posts Drives: B8 Alpina; X7 M60; Mbenz GLS Join Date: Jul 2022 Location: U.S. and Germany iTrader: (0)	Sorry about that. I think ISTA is a must-have for BMW owners. I have one and it's great; you just need to learn it but it's fairly simple. No doubt that most manufacturers are canceling/discontinuing the PHEV variants. They seem to be very problematic. Even BMW PHEVs, like X5, have issues despite the massive experience that BMW has in PHEV over other brand.
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03-07-2026, 08:21 AM	#5
Qsilver7 Major General 6503 Rep 9,826 Posts Drives: F06 650ix GC / F15 X5 50i Join Date: Oct 2016 Location: Indiana, USA iTrader: (0)	CEL (aka Check Engine Light)...means that something in your emissisons system has created a fault code. You can use a simple OBD II (generic) code reader to pull the code(s) to see what sensor(s) set the fault code. In most states, stores like AutoZone will read them for free...but I don't think they are allowed to do this in California, so you'll need to use an OBD II reader or software or an app that can pull diagnostic codes. Or, if your BMW is still under warranty, simply stop by the service department and have them pull the code...again, this is simple hook up to the OBD II port. There are too many different areas to even guess what may have set the fault...but since your didn't say the light was flashing...it's probably something simple like you gas cap isn't on correctly or there may be an issue with your grill flaps (lots of new BMWs have issues with them getting stuck). But again, no need to panic yet...just get the codes read...and if you do have an OBD II scanner/reader...pull the code and simply google it. The US mandated OBD II regulations back in 1996...so you have decades of info that a google search can pull up if you type BMW XXXXX (where the 5 Xs = the actual 5 digit code)...or if you have a tool that can pull the BMW specific hex code (6 digits) you can use that too, to search for a possible cause/solution/service plan/etc. Open one of the owners manuals you have at your service (the digital one embedded in iDrive or the downloadable PDF available from BMW Connected etc) to see why the Check Engine Light illuminates...and you should see that it mentions that it's related to emissions issues. __________________ 2015 F06 650ix Gran Coupe`(Moonstone/Cohiba Brown)\| 2014 F15 X5 50i MSport (Space Gray/Mocha) Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.
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03-17-2026, 10:28 AM	#6
jettie1767 Captain 188 Rep 813 Posts Drives: '23 BMW i7 xdrive60 Join Date: Feb 2008 Location: Colts Neck, NJ iTrader: (0) Garage List 2026 BMW M5 [0.00] 2025 BMW X1 [0.00] 2024 BMW i4 xdrive40 [0.00] 2023 BMW i7 xdrive60 [0.00]	Is the gas cap on tight? __________________ '26 BMW M5i - Isle of Man Green '24 BMW i4 xdrive40 - San Marino Green '25 BMW X1 xdrive28 - Portimao Blue
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03-25-2026, 10:46 AM	#8
Qsilver7 Major General 6503 Rep 9,826 Posts Drives: F06 650ix GC / F15 X5 50i Join Date: Oct 2016 Location: Indiana, USA iTrader: (0)	__________________ 2015 F06 650ix Gran Coupe`(Moonstone/Cohiba Brown)\| 2014 F15 X5 50i MSport (Space Gray/Mocha) Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.
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04-15-2026, 01:24 PM	#9
UR_LZN New Member 6 Rep 15 Posts Drives: 2026 BMW 760i Join Date: Dec 2025 Location: Sumwhere Out-There iTrader: (0)	(QUOTE) You can use a simple OBD II (generic) code reader to pull the code(s) to see what sensor(s) set the fault code. In most states, stores like AutoZone will read them for free...but I don't think they are allowed to do this in California, so you'll need to use an OBD II reader or software or an app that can pull diagnostic codes. (QUOTE) Unless something recently changed here in Calif, the 'borrowed' OBDII reader is available at AutoZone. My daughter's T-Bird started throwing a code regarding the O2 sensor. We reset it (until I could repair it) and she was good fer now. She continued to reset it with 'borrowed' readers. I never did get to fixing that issue. Instead she got a screamin' deal on a 3-Series and sold the 'Bird'! Oh-well, sometimes procrastination can work out!
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