2018 BMW 330I Complaints

The engine overheated and suddenly lost power/ acceleration while driving in rush hour traffic at highway speed. I had to move across 3 lanes of traffic to get on to shoulder of highway safely while car and engine sputtered and slowed to a stop with no power or acceleration. After having vehicle towed I was told by certified technicians that the oil filter housing was made of plastic with coolant lines inside and failed causing rapid coolant loss with no low coolant warning and ultimately loss of engine and power.

The contact owns a 2018 BMW 330I. The contact stated that while driving at an undisclosed speed, unknown warning lights were suddenly illuminated, indicating that the engine was overheating. The message instructed the driver to shut off the vehicle immediately. The contact pulled over and turned off the vehicle, and it was discovered that the coolant reservoir was empty. The vehicle was towed to a local dealer, where it was determined that there was a plastic part from the oil cooler housing that needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 40,000.

The coolant system and oil housing filters. The entire coolant system components fails in this vehicle after 60,000 mile due to the parts not being all aluminum. This fix alone is about 8k from the BMW Dealership. This isn’t fair to the customer! This needs to be a recall! The parts needs to be more stronger and never replaced with the same manufacturer part! This fails the entire engine system! The car will have multiple issues just because of this constant failing area of the vehicle!

The contact owns a 2018 BMW 330I. The contact stated that while driving 35-40 MPH, the vehicle shut off unintendedly. The contact stated that there was an oil intake leak and a coolant leak. There were several warning lights illuminated after the failure. The vehicle was towed to an independent mechanic, who determined that there was an engine malfunction with the vehicle. The local dealer was contacted and confirmed there was no recall or warranty coverage on the VIN for the failure. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 80,000.

Car keeps overheating. Water pump, water hose and expansion tank have been replaced several times and the car still overheats.

While driving on the highway, my vehicle unexpectedly caught fire due to no fault of my own. Upon investigation, it appears the fire originated from a short in the rear window defroster wiring, which led to significant damage in the right rear C-pillar area, headliner, rear window, and rear deck. This event was not only hazardous to my physical safety but also deeply traumatic on a personal level. As someone who suffered severe burns as a child, experiencing a fire while operating a vehicle triggered a powerful emotional response. The trauma of the incident has had a profound impact on my mental health and sense of safety. I have always trusted BMW for its engineering excellence and commitment to safety, which makes this situation even more disheartening because they refuse to fix my vehicle.

I smelt and saw smoke coming from the back of my vehicle. I pulled over on to the left side of [XXX] bound. Then, I jumped out of the car to check the truck. I didn't see anything, then i popped the hood and still did not see anything visible. I then went back to the trunk to check it again, and that is when I saw flames pop out from the back seat area. It was in the area where the back de-frost wires and some other wires are as well. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My 330i 2018 bmw has a cracked in the oil housing unit. This is due to bmw putting plastic parts instead of aluminum. After researching this I found thousand of people complaining about the sane thing. The car overheats and sometimes the oil gets mixed into the coolsnt system b causes more damage. This seems to happen on cars with mileage between 60-70 on engines B46, B48 n B58z

Oil Filter Housing failed and coolant gushes all out which makes the car undrivable and risk of engine overheating and failure.

The contact owns a 2018 BMW 330I. The contact stated that while driving at various speeds, the engine overheating message was displayed on the instrument panel with the temperature gauge rising to hot(H). The vehicle was taken to an independent mechanic where the coolant reservoir was topped off however, the failure persisted. The contact then received notification of NHTSA Campaign Number: 21V907000 (Fuel System, Diesel) which was linked to the failure. The vehicle was taken to the dealer where the recall repair was performed. The contact stated that recently the vehicle began to leak coolant. The vehicle was taken back to the dealer and the contact was informed that the manifold needed to be taken off to perform a diagnostic test. The contact was informed that the oil filter housing unit and the water pump both needed to be replaced. The manufacturer was notified of the failure and transferred the contact to the NHTSA Hotline to report the failure. The vehicle remained in the possession of the dealer unrepaired. The failure mileage was approximately 60,150.