Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2018 BMW X5 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2018 BMW X5. The contact stated that a low coolant message was displayed on the instrument panel while driving at various speeds. The vehicle was initially taken to a dealer where an oil change was performed, and the contact was informed that there were no other defects found with the vehicle. The contact stated that the failure returned a week after the oil change and the vehicle was then taken to an independent mechanic. The mechanic informed the contact that the intake manifold was cracked and that the EGR valve cooler was defective, and that both parts needed to be replaced. The mechanic replaced the intake manifold and the EGR cooler and informed the contact that there was an unknown recall on the vehicle for the defect. The manufacturer was notified of the failure; however, the contact was denied a reimbursement request. …
The contact owns a 2018 BMW X5. The contact stated while his wife was starting the vehicle, the check engine warning light illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the Exhaust Gas Recirculation (EGR) cooling system needed to be replaced. The vehicle was repaired but experienced the failure a second time three days later. The contact took the vehicle back to the local dealer, where the vehicle was being diagnosed. The vehicle was not repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 21V907000 (Fuel System, Diesel) however the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was 47,190.
The contact owns a 2018 BMW X5. The contact stated that after restarting the vehicle, while driving approximately 10 MPH, there was black smoke coming from the exhaust pipes. The vehicle was taken to an independent mechanic who diagnosed that the EGR cooler and intake manifold had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in NHTSA Campaign Number: 18V755000 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 73,000.
The contact owns a 2018 BMW X5. The contact stated that while the vehicle was parked, there was an abnormal sound coming from the engine compartment. The check engine warning light was illuminated. The vehicle was taken to a dealer where it was diagnosed that the thermostat was stuck opened, causing the check engine warning light to illuminate and the transmission oil coolant heat exchanger to be damaged by the thermostat failure. The contact was advised that the thermostat and coolant pump needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 74,000.
The contact owns a 2018 BMW X5. The contact stated while starting the vehicle, there was blue smoke coming out of the exhaust pipe. The vehicle was taken to the dealer, where it was diagnosed that the turbocharger had failed and needed to be replaced. The dealer informed the contact that the vehicle was not covered under TSB Number: B111116. The vehicle was not repaired. The manufacturer was notified of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 69,000.
The AC compressor catastrophically failed and sent metal throughout the AC system. I will have to auction the vehicle and try to get some money from the vehicle to buy another car. I doubt that I will still have the vehicle by the end of August 2024. Because my vehicle is a plug-in-hybrid and AC lines run through it, the check engine light came on because the electric drive could not function properly. It was 90+ degrees outside and thus inside the car, and a good portion of the power to drive my car wasn't available since the electrical drive was affected. The problem was diagnosed by our local BMW dealer. Their analysis is sent via video messages. While I doubt you will be allowed to view it for corporate safety standards, the URL for the video they sent is [redacted] . I also saved a screen grab video but it is too large to send. Just the BMW dealership. …
BMW issued a recall in October 2024 regarding the engine coolant pump electrical connector on my 2018 BMW X5 xDrive40e, warning of electrical shorts and fire risks. It's now late March 2025-approximately six later-and BMW dealerships still state explicitly they have no available remedy and no timeline for repair. Recently, my vehicle showed a drivetrain warning message, which I suspect is recall-related. I called BMW corporate recall hotline and my local BMW dealership (BMW of Tenafly) today (March 24, 2025). The dealership explicitly stated that they can only perform diagnostics, and even if their diagnostics confirm my drivetrain issue is recall-related, they 'cannot do anything' due to BMW's lack of available recall remedy. …
On March 9, 2026, I brought the vehicle to BMW of Fairfax for a scheduled appointment. In the week leading up to the visit, the vehicle intermittently failed to start and required jump-starting using a portable battery starter. Despite this issue, the car drove normally, showed no warning lights or error messages, and had approximately 69,000 miles on the odometer at the time. After jump-starting the vehicle, I personally drove it to the dealership. I paid for a diagnostic evaluation and also authorized completion of a minor recall. Two days later, I was informed that the vehicle was no longer able to shift into gear and was now completely inoperable. I was told I would be responsible for towing the vehicle off their premises. According to the service department, the vehicle now requires replacement of the EME module, at an estimated cost of $12,000. …
Need asap reply, Hello this is the worse service I ever had to encounter March 10 2022 till present date I haven't gotten my vehicle back from https://www.mckennabmw.com/ had been a back n forth matter. This recall has gone way too far my pregnant wife n mother in law we're in vehicle when it broke down. I been in a loaner vehicle from the date shown above. This need to be look at asap I'm consulting this to an attorney. I NO longer want vehicle back I am requesting a buy it back so I can move on to my next vehicle and it won't be a BMW plz contact me asap @ [redacted] Who will I need to contact to request lost of use coverage to be issued to me I been paying insurance to a vehicle that's it's only sitting at the nearest dealer I've also paid a huge amount for a tow truck to pick up my pregnant wife from the highway. Hope to heard from you guys soon . Thank you
While driving moderately on suburban roads, the car suddenly jerked forward and stalled, and a warning came on indicating "drive train malfunction". The message said that continuing driving was possible and to contact dealer soon at convenience. Then, 30 seconds later while still driving, the car completely died. Engine died and car began coasting. Had to coast into a parking lot where the car came to a complete stop. Tried troubleshooting and turning the engine on and off for an hour; the car would turn on for a split second, stutter and growl as if it was out of gas (it was not), and then shut off. Car had to be towed (six hours later) and is awaiting inspection at dealer. Nothing at all indicated an issue prior to this happening; in fact, the car was just serviced at the dealer literally ten days ago. …
Engine complaints in other X5 years
Frequently asked questions
How common are engine problems on the 2018 BMW X5?
NHTSA has 20 complaints about the engine & cooling of the 2018 BMW X5, 27% of the model year's 73 complaints. The component named most often is exhaust system › emission control › gas recirculation valve (egr valve) (1 mentions).
Is there a recall for 2018 BMW X5 engine problems?
No. NHTSA lists no engine & cooling recall for the 2018 BMW X5, though it has 5 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2018 BMW X5 engine problems start?
Half of the complaints with a recorded mileage happened before about 73,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.