Run Flat Indicator Inoperative? TPMS
Thread Starter
Junior Member
Joined: Oct 2021
Posts: 68
Likes: 9
From: Kazakhstan
ML350 - 2007 164.186
Run Flat Indicator Inoperative? TPMS
Hello,
Yesterday, my wife's tire exploded and she drove 2.5km on the flat tire.
As a result, the tire was too bad to be repaired and used again.
The problem was that the vehicle did not give a flat tire warning. It always says "run flat indicator inoperative" on the screen.
From the chassis number of the car, from option codes
There are 477 TIRE PRESSURE LOSS WARNER is available.
There are no ESP errors in the car. There is no sensors on wheels.
Why is it not working? can you help me? How can i activate? i have xentry? may be turned off before (because light didnt shown)?
Yesterday, my wife's tire exploded and she drove 2.5km on the flat tire.
As a result, the tire was too bad to be repaired and used again.
The problem was that the vehicle did not give a flat tire warning. It always says "run flat indicator inoperative" on the screen.
From the chassis number of the car, from option codes
There are 477 TIRE PRESSURE LOSS WARNER is available.
There are no ESP errors in the car. There is no sensors on wheels.
Why is it not working? can you help me? How can i activate? i have xentry? may be turned off before (because light didnt shown)?
Last edited by grkmspr; Jul 7, 2023 at 09:53 AM.
MBWorld Fanatic!
Joined: Mar 2015
Posts: 1,975
Likes: 265
From: Sacramento, CA
2018 GLC300 4Matic; 2008 ML550 4Matic; 2004 C320
Regardless if the sensor is working or not, when you say the tire “exploded”, that would mean to me that there was nothing left and it was shredded.
Your wife should have noticed that and not continued to drive.
Furthermore, I question as to how an “exploded” tire could ever be fixed?
Your wife should have noticed that and not continued to drive.
Furthermore, I question as to how an “exploded” tire could ever be fixed?
Thread Starter
Junior Member
Joined: Oct 2021
Posts: 68
Likes: 9
From: Kazakhstan
ML350 - 2007 164.186
The word "exploded" was a bit of an exaggeration, she cut the tire sidewall. Sorry 
While my wife was turning, her tire hit the curb. (what she always does )
this time the tire sidewall cut, and she didn't notice. (women's -.-)
As for the repair issue;If the tire sidewall is cutted, they melt the tire with a special iron and paste a new rubber. If it is punctured, methods (1) Simple Plugging, (2) Patching and (3) Plug/Patch Combination.
Also, there are no sensors in the tires, there is a warning with the information coming from the esp/abs system, it is activated with xentry. I activated the system, I will try it tomorrow and I will share how it is done step by step. screenshots on another computer.
While my wife was turning, her tire hit the curb. (what she always does )this time the tire sidewall cut, and she didn't notice. (women's -.-)
As for the repair issue;If the tire sidewall is cutted, they melt the tire with a special iron and paste a new rubber. If it is punctured, methods (1) Simple Plugging, (2) Patching and (3) Plug/Patch Combination.
Also, there are no sensors in the tires, there is a warning with the information coming from the esp/abs system, it is activated with xentry. I activated the system, I will try it tomorrow and I will share how it is done step by step. screenshots on another computer.
Thread Starter
Junior Member
Joined: Oct 2021
Posts: 68
Likes: 9
From: Kazakhstan
ML350 - 2007 164.186
Activation Of TPLW (Tire Pressure Loss Warning)
Connect car with Xentry, Control Units > Chassis > ESP > Control Unit Adaptations > Tire Pressure Loss Warning (Activating) > F12 > F4 > F2
Then i reset tire pressures with instrument cluster.
My car have not tire pressure warning light
When tire pressure is incorrect, instrument panel turns RED and says Check Tires
F12- Reactivate
F4 - On
Connect car with Xentry, Control Units > Chassis > ESP > Control Unit Adaptations > Tire Pressure Loss Warning (Activating) > F12 > F4 > F2
Then i reset tire pressures with instrument cluster.
My car have not tire pressure warning light
When tire pressure is incorrect, instrument panel turns RED and says Check Tires
F12- Reactivate
F4 - On
Last edited by grkmspr; Jul 8, 2023 at 10:18 AM.
