2012 C350 4m check tire pressure keep coming back
I follow the manual drive it slowly and was clear. And before that I use a scanner and say Left rear speed sensor failure. The ABS and Tracking message did not come back since.
But the red "Check Tires pressure soon" keep coming back even the tires pressure are all good and I reset it again and again. It still coming back.
Is that cause by the rear left speed sensor is acting up ?
Thanks !




Are the tires at the pressures listed on the fuel filler door?
Last edited by TimC300; Nov 2, 2023 at 07:46 PM.




Just to rule it out have you checked the spare tire in the trunk. I dont know if the system detects the spare, maybe it does.
How are you resetting the system? I was looking through the 2012 Operators manual and it looks very similar to my 2010. I downloaded a few pages. I find it confusing since im not sure what is specific to CA cars.
I would check the tire pressures with a tire gauge. Get in the car and drive around the block. Then follow the manual to reset the values, look to see if there is a USE CURRENT PRESSURES AS NEW REFERENCE VALUES.
If that doesn't work and the warning keeps popping up im wondering if maybe the batteries in a sensor may be low. When I took mine to have a sensor replaced the tire shop was able to scan all the sensors and see the battery levels, which is how I knew one of my rears needed replacing soon. I know my Foxwell scanner can read the sensors but not sure about battery life.
Also searching around for this issue I've read that maybe a sensor is damaged.


