NHTSA Complaint #10345611 — 2004 BMW 5 SERIES

1. I IDENTIFIED A PROBLEM WITH THE 2004 BMW 545I WHICH I HAVE. I RESEARCHED THE ISSUE, WHICH I WILL EXPLAIN BELOW (IN SECTION 2 AS REQUESTED), ONLINE, AND FOUND THAT HUNDREDS OF PEOPLE HAVE HAD THE SAME ISSUE. I FOUND THAT IN SOME INSTANCES, BMW CORRECTLY DIAGNOSED THE ISSUE, HOWEVER IN MANY INSTANCES, THEY DID NOT (IN SECTION 3, AS REQUESTED). 2. "THE CAR WOULD SHIFT INTO 5TH GEAR & THEN BETWEEN 35-40MPH AT A VERY LOW 1200RPM OR SO I WOULD GET THE SURGING OR SLIPPING OF THE TRANSMISSION. IT WAS A VERY LIGHT REPETITIVE HESITATION. IT ALMOST FELT LIKE THE ELECTRONICS WERE TRYING TO DECIDE WHETHER IT SHOULD STAY IN 5TH OR SHIFT BACK TO 4TH BECAUSE OF LOW RPM'S. IT WOULD HAPPEN WITH AN EXTREMELY LIGHT ACCELERATOR PRESSURE. IF YOU GAVE IT A LITTLE MORE GAS IT WOULD GO AWAY. A COUPLE TIMES I'D GET A REALLY HARSH SURGE ALMOST LIKE THE "SLAM". THE MANNER THAT THE CAR BEHAVES CAN REALLY CAUSE AN ACCIDENT WITH THE SURGE IN THE TRANSMISSION, & THE DISTRACTION THAT IT CAUSES TO THE DRIVER. IT HAS BECOME A DISTRACTION TO ME, BEING THE DRIVER, & ALSO NOTICED BY PASSENGERS IN THE VEHICLE, WHEN THEY FEEL THE CAR SURGE, & THEIR IS ANOTHER VEHICLE IN FRONT OF ME. 3. I TOOK THE CAR TO A BMW DEALERSHIP, & DESCRIBED THE ISSUE. THE SERVICE ADVISOR (REPRESENTATIVE) STATED THAT THEY WOULD LOOK AT THE VEHICLE, AS THEY HAD OTHER COMPLAINTS ABOUT THIS, AS WELL. HE SAID THAT THEY WOULD PROBABLY NEED TO DO A SOFTWARE UPGRADE, OR REPLACE THE TRANSMISSION. I RECEIVED THE CAR BACK, & WAS TOLD THAT THE SOFTWARE WAS UPGRADED, & TO TAKE THE VEHICLE AND SEE HOW IT DROVE. I DROVE THE VEHICLE HOME, & THE ISSUE WAS STILL THERE. THE REPAIR INVOICE SAYS THE SOFTWARE WAS NOT UPDATED. IT ALREADY HAD THE LATEST VERSION. I TOOK THE CAR BACK, AND THEY STATED THE OPERATION OF THE CAR IS NORMAL. IT IS NOT NORMAL. YOU MAY REFERENCE HTTP://WWW.BIMMERFEST.COM/FORUMS/SHOWTHREAD.PHP?T=401524 FOR OTHER WHO HAVE HAD THE ISSUE. THE MECHATRONICS UNIT WAS REPLACED ON SOME, AND ALWAYS RESOLVED THE ISSUE. *TR