2016 BMW X3: check engine light

Filed Nov 18, 2025 · Electrical, Fuel system · CO

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 due to excessively high exhaust temperatures. The problem has been confirmed by BMW of Loveland. The Service Director and their technical team identified the root cause in less than one day and confirmed it requires the replacement of the sensor, harness, and DDE. This was also validated by an internal BMW technical support case (TSARA). Gebhardt BMW failed to diagnose the issue correctly over three prior attempts starting in June 2023 through Aug 2025. Prior symptoms appeared over a period of months and included: Intermittent check engine light/MIL. Multiple, confusing diagnostic fault codes (related to air mass, charging pressure, and DPF efficiency). Increased frequency of DPF regeneration intervals.

Filed Oct 28, 2024 · Electrical, Engine · 99,000 miles · VA

The contact owns a 2016 BMW X3. The contact stated while driving at an undisclosed speed, the contact noticed a burning odor inside the vehicle. The check engine warning light was illuminated. The vehicle was taken to the dealer; however, the contact was informed that parts to repair the vehicle was not available. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact received notification of the federal safety agency Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure, however, was unable to confirm when parts would become available. The failure mileage was 99,000. VIN tool confirms parts not available.

Filed Sep 10, 2024 · Engine · FL

I got an engine light and found a recall for BMW's online so I made the service call. Once there at Fields Winter Park, I was asked to sign a service agreement where i would pay $219.95 for the diagnostic if the issue didn't fall into a recall. Well, I saw the recall in my computer, in the federal safety agency, for a coolant thermostast, and also one for the engine Coolant Pump, so I knew it should be covered, so I signed. Later they said that the issue was the thermostat, and that since they couldn't find a recall on the BMW USA website, I would be responsible for payment. I did bring my laptop and phone and showed them both recalls. They say they do not go by any other website than theirs, which conveniently does not reflect any recall on my vehicle. When I said that I was looking at the information in an official website, they said said that technically, I set the appointment because of an engine light, not a recall. I politely mentioned that technicalities on this case come down to wording from a consumer that trusts the dealership of a brand but should not be used against such consumer in any tricky and deceiving way. I called for an engine light and saw two recalls for BMW of my year. On official sites. I was overwhelmed while talking to both a service manager and the general manager, in the presence of also the service representative. They said to me that the engine light would NOT be triggered by a coolant pump issue (which is not true). And they said that even when Safety Recall Report 24V‑608 is in the federal safety agency website, it is not active on their side and therefore they do not need to do anything about it, until I receive a letter to come to have it looked at. So they denied any action until i received a letter and even then, they said I would not be welcome to do business there. So basically they did not take any action on the recall! And then they gave me my car back with a large scratch in the front bumper and fender!

Filed Oct 3, 2022 · Fuel system · 66,869 miles · NC

The contact owns a 2016 BMW X3. The contact received notification of the federal safety agency Campaign Number: 21V907000 (Fuel System, Diesel) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while his wife was driving at an undisclosed speed, the "Drive Train Malfunction" message was displayed. The vehicle was taken to the dealer where it was diagnosed that the Exhaust Gas Recirculation (EGR) cooler needed to be replaced but confirmed that parts were not yet available. The failure recurred with an abnormal fuel odor detected while the vehicle was parked inside the garage. Additionally, fuel was leaking from underneath the vehicle and the check engine warning light illuminated while driving. The vehicle was taken back to the dealer where it was determined that there was a pinhole in the fuel hose and the fuel hose was replaced. The manufacturer was made aware of the failure. The failure mileage was 66,869. VIN tool confirms parts not available.

Filed Nov 4, 2018 · Engine, Steering · 29,800 miles · ME

While approaching a stoplight, braked, then went to accelerate and the vehicle totally shutdown and stopped while driving in traffic. This was a catastrophic failure, which could have killed both occupants of this vehicle. The check engine light was activated. Upon attempting to restart the vehicle to move it out of the way of traffic, the vehicle would not start. The transmission would not be placed in neutral nor could the parking brake be disengaged so the vehicle could be pushed out of the way of traffic. This was a very dangerous situation. This vehicle is dangerous and should be taken off of the market.