Question about 2006 Mercedes-Benz Mercedes Benz CLS500
I have found a lot of times where the tire installer will end up damaging one of the wheel sensors or sometimes not even transferring them over to the new tires when they install them. Double check to see that the TPC wheel sensors are actually there. The valve stem will be grey instead of black. If one got damaged that would also cause the warning to go out. You could try letting the air out of the tires at least more then a 10psi difference and then correct tire pressure right after wards. That is the relearn process to get the sensor to start sending a signal again to the control module. Normally you need the Mercedes Benz "SDS" labtop to activate the relearn in mode, but its worth a shot to try and get the sensors working again with out taking the car into the shop. It may also take driving it a while until the TPC control module re learns the position of the sensors if they weren't installed in the same position before replacing the tires (eg: right/front,left/front etc). You also want to make sure the tire pressure is cold when you reset the light. If you reset the light after driving for a long period of time it will set the threshold at a higher psi due to the tires being hot from driving and then when the car sits for a while and the pressures drop again because there cold it may think a tire is leaking. If the light still won't stay off you might have to take it to a shop to be checked with a 'sds' or a tpc sensor tester.
Posted on Oct 14, 2010
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Posted on Jan 02, 2017
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