Update on my tire pressure monitoring system...
Thread Starter
Member
Joined: Dec 2002
Posts: 221
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From: Houston, TX
02 996 C2 Cabrio
Update on my tire pressure monitoring system...
It turns out that my TPMS works just fine. They system will not read static pressures (from what I can tell). Apparently, the sensors in the valve stems detect motion and turn "on" when the car is actually moving. This allows conservation of sensor battery life, but does not allow static pressure checks on cold tires on a parked car.
Regarding my "Warning! Low tire pressure front left and front right" message after setting my tires to Mercedes spec (29 psi front/ 34 psi rear for above 100 mph), all you need to do is simply reset the TPMS by holding down the dimmer knob at the left of the gauges when in the appropriate screen. This resets the "range" that the TPMS monitors and the warnings disappear! :p
I have found the system to be useful thus far, allowing me to occasionally monitor tire pressure while driving. If something seems awry, I can quickly check pressures and pick up a low tire before it get shredded to pieces, possibly causing an accident.
Regarding my "Warning! Low tire pressure front left and front right" message after setting my tires to Mercedes spec (29 psi front/ 34 psi rear for above 100 mph), all you need to do is simply reset the TPMS by holding down the dimmer knob at the left of the gauges when in the appropriate screen. This resets the "range" that the TPMS monitors and the warnings disappear! :p
I have found the system to be useful thus far, allowing me to occasionally monitor tire pressure while driving. If something seems awry, I can quickly check pressures and pick up a low tire before it get shredded to pieces, possibly causing an accident.
Thread Starter
Member
Joined: Dec 2002
Posts: 221
Likes: 0
From: Houston, TX
02 996 C2 Cabrio
Originally posted by mkassab
I can check my tire pressure without the car moving..... just turn the key to "ON".
I can check my tire pressure without the car moving..... just turn the key to "ON".
I'll have to give it a try...
Thread Starter
Member
Joined: Dec 2002
Posts: 221
Likes: 0
From: Houston, TX
02 996 C2 Cabrio
Originally posted by mkassab
It always works with the key on (whether the engine is running or not and if the car is moving or not). Hope this helps.
It always works with the key on (whether the engine is running or not and if the car is moving or not). Hope this helps.
I must have missed that part in the 695 page manual! 
