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Run Flat Indicator Active ???

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Old 02-23-2023, 04:39 PM
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2018 c300 s205
Run Flat Indicator Active ???

hi everyone I got a bit of an issue and have no idea where to start ....

car has been driving great no issues, drove it a couple of days ago and parked it hasn't moved since. drove it today and about 5-10 minutes into trip car starts pulling to the right I pull over take a quick look around and everything seems fine, didn't hit or drive over anything. Figured id check tire pressure just in case but I can't get to the readings, the run flat indicator active screen shows. I click the pressure ok the screen proceeds to next screen indicator restarted but after a few seconds reverts back to indicator active.
I get to a gas station and check tire pressure with a gauge and the pressures seem fine. no engine / waring lights on dash.

braking is unaffected, don't have run flats, no recent mods or changes, last mod was new steering wheel a couple of months back, recently serviced in February, no known issues with car.

any help appreciate thanks.

Old 02-23-2023, 05:40 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by sidsidhu
hi everyone I got a bit of an issue and have no idea where to start ....

car has been driving great no issues, drove it a couple of days ago and parked it hasn't moved since. drove it today and about 5-10 minutes into trip car starts pulling to the right I pull over take a quick look around and everything seems fine, didn't hit or drive over anything. Figured id check tire pressure just in case but I can't get to the readings, the run flat indicator active screen shows. I click the pressure ok the screen proceeds to next screen indicator restarted but after a few seconds reverts back to indicator active.
I get to a gas station and check tire pressure with a gauge and the pressures seem fine. no engine / waring lights on dash.

braking is unaffected, don't have run flats, no recent mods or changes, last mod was new steering wheel a couple of months back, recently serviced in February, no known issues with car.

any help appreciate thanks.
Your vehicle has passive TPMS (tire pressure monitoring system) without the TPMS sensors, meaning it senses changes of tire revolutions on each wheel to determine if there is a pressure loss then it alerts you, it doesn't have individual readings.

For that reason, you might need to check your own tire pressure yourself using your gauge, the tire pressures to be used are cold tire pressures located on a sticker in the fuel door.
Old 02-24-2023, 03:54 PM
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yeah I did check tire pressure using a gauge and it was fine
Old 02-24-2023, 04:20 PM
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oh and I just drove the car around the block and now drives fine but still have the same indicator active msg
Old 02-24-2023, 04:44 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by sidsidhu
oh and I just drove the car around the block and now drives fine but still have the same indicator active msg
As mentioned earlier, Active means system is working properly, you may exit that menu.
Old 02-24-2023, 05:19 PM
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oh so you're saying its just default screen, no issues and is unrelated to the car pulling to one side..





Old 02-24-2023, 06:50 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by sidsidhu
oh so you're saying its just default screen, no issues and is unrelated to the car pulling to one side..




That is correct, press the back arrow and exit it.
Old 02-24-2023, 08:18 PM
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Originally Posted by sidsidhu
oh so you're saying its just default screen, no issues and is unrelated to the car pulling to one side..




You should try that when the car is running. In the mode that you are in, it may not be reading the tire pressure.
Old 02-25-2023, 11:28 AM
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I did try with car running and while driving but I guess its just the way its supposed to be.

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