2016 BMW X3 Fuelpropulsion System Problems

The low-pressure fuel temperature/pressure sensor failed internally, causing diesel fuel to intrude via capillary action into the engine wiring harness and ultimately contaminate the Digital Diesel Electronics (DDE) control unit (ECU). The failed components (sensor, harness, DDE) are available for inspection upon request at BMW of Loveland, CO. My safety was put at risk in two primary ways: Engine Stalling Risk: The DDE is the engine control unit. As the fuel contaminated the electrical connections, the engine's reliability was compromised, creating a significant risk of sudden engine stalling while driving in traffic or at high speeds. Fire Hazard: The intrusion of diesel fuel—a combustible fluid—directly into the electrical wiring harness and the DDE created a clear fire hazard. Fuel near active electrical components poses a serious safety risk. Inaccurate Temperature Readings: The EGT (Exhaust Gas Temperature) sensor received incorrect readings due to the DDE/wiring issue, leading to potential engine damage...

BMW has failed to issue a remedy for the COOLANT PUMP that may lead to fires, if not replaced. For months now, I have called several BMW dealerships and they do not have an idea of when BMW would issue a remedy. BMW needs a push from the NHTSA to address this recall instead of looking to the other side because the car's date is 2016. If they cannot fix that hazard, then they must replace vehicles.

In early August 2021, the fuel pump on our BMW X3 failed in the middle of an intersection and the car stopped completely. No way to move to one side until a flatbed wrecker came. Fuel pumps will fail after 100,000 miles and we above that figure, Which is why it was surprising then to have the same problem four months later when we had multiple error codes come up on the same car. At least this time I could pull over to the side off the road. The problem was a failing fuel pump. When a pump fails the car stops. If we had been on a highway we would have been rear ended and potentially killed. I shared my concern with a contact at BMW Corporate who only noted that the repair was under extended warranty. One BMW service rep I spoke to said that fuel pump failures...

ON 8/30/20,AFTER SITTING FOR AN HOUR AFTER A LONG DRIVE, THE CAR BURST INTO FLAMES AND BURNED DOWN TWO ADJACENT HOMES. THE CAR WAS PARKED FOR AN HOUR BEFORE IT STARTED TO BURN.