2001 BMW X5 Q&A
2001 BMW X5 Question: Emissions fail
Try this: Make sure the fuel level is between 1/4 and 3/4 and the engine is cold. Start engine, idle cold for approx. 2 min, 10 secs. Accelerate to 20-30 MPH, Maintain steady speed for approx 3 min, 15 secs. Accelerate to 40-60 MPH, Maintain steady speed for approx 15 mins. Decelerate and come to a stop. Idle in gear for approx 5 mins. WARNING! It is absolutely essential to keep the RPM's below 3,000 and the MPH below 60 for the duration of this test! This won't be easy to do, unless you have access to a dyno or a race track, since traffic conditions could ruin the whole procedure and you have to start again with a cold engine. Zee - ZeeTech
I had the same issues. The drive cycle is between 30-35 miles. Derek - Visitor
I failed emissions due to the issue above.