The yellow warning lamp lights up. A Check Control message is displayed.
The system therefore issues a warning based on the tire inflation pressures before the last reset.
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneuvers.
2. Check whether the vehicle is fitted with regular tires or run-flat tires.
Run-flat tires, are labeled with a circular symbol containing the letters RSC marked on the tire's sidewall.
Do not continue driving without run-flat tires
Do not continue driving if the vehicle is not equipped with run-flat tires; continued driving may result in serious accidents.
A low tire inflation pressure might turn on DSC Dynamic Stability Control.
BMW X3 Owners Manual > General driving notes: Diesel particulate filter
The diesel particulate filter collects soot particles
and burns them periodically at high temperatures.
During several minutes of cleaning the following
may occur:
Temporarily, the engine may run less
smoothly.
Noises and a slight amount of smoke coming
from the exhaust until shortly ...