BMW 530i Engine Problems

Engine complaints by model year

Which parts fail

• Engine
  3
• Cooling system
  2
• Exhaust system › Emission control
  1

Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).

Mileage when the problem started

• Under 25k
  611%
• 25k–50k
  59%
• 50k–75k
  1223%
• 75k–100k
  917%
• 100k–150k
  1121%
• 150k+
  1019%

What owners report

On October 22 while driving home from work my vehicle warning notified me to refill coolant. This was the first time I received the notification so I immediately took the vehicle to BMW. The service advisors checked the coolant level which was indeed low. The service advisor was also able to point out the smell of coolant and evidence of dried up coolant leaking unto the engine. I scheduled an appointment immediately to have the problem thoroughly inspected. The water pump was leaking at the seals which could cause overheating and a potential engine fire. After the official inspection I was informed that my water pump/carrier assembly was leaking at seals and would need to be completely replaced. My water pump needing to be changed was alarming considering my vehicle is well maintained and only 42000 miles. I am also aware of the recent recall with BMW water pumps issues.

On the night of 9/4/25, I parked my 2019 BMW 530i in my closed garage and believed I had turned off the vehicle. I removed the key fob. Hours later, our household carbon monoxide detector activated. The fire department responded and measured 480 ppm CO throughout the house and 1,500 ppm inside the vehicle. They stated we were seconds from death due to carbon monoxide exposure. The engine bay reached nearly 600 F, and oxygen in the garage dropped to 7%. The fire department incident report is not yet available, but I will provide it once obtained. The keyless ignition system did not shut off the engine when the fob was removed, even though the vehicle usually shuts off automatically during brief stops (via Auto Start/Stop). The engine continued running indefinitely, creating a life-threatening hazard. My family survived only because the CO detector activated in time.

The contact owns a 2018 BMW 530I. The contact stated that while driving at various speeds, a coolant-level message was displayed on the instrument panel. The vehicle was taken to a dealer where a diagnostic test determined that there was a coolant leak inside the engine. The contact was informed that the vehicle was covered under warranty and that an undisclosed part inside the coolant system was replaced. The contact stated that one week after the repair, the message returned, and the contact was informed that the upper coolant hose was defective. The contact was informed that the vehicle was no longer covered under warranty and the contact paid for the repair. After the second repair, the contact stated that the failure returned and there was coolant leaking from the vehicle. The manufacturer was notified of the failure and referred the contact back to the dealer. …

The contact's wife owns a 2018 BMW 530I. The contact stated that while driving at various speeds, the check engine warning light illuminated. The contact refilled the coolant reservoir, and the warning light turned off; however, the check engine light soon returned. The vehicle was towed to a dealer where a diagnostic test discovered that coolant and freon had leaked from the turbo lines, causing damages to the oil housing and water pump. The dealer provided the contact with an estimate for the repair. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 105,000.

This is the second time I've had overheating issues, and it now seems more severe. I've noticed both coolant and oil leaking, and the car is unsafe to drive. Also fault codes related to emission. Here are the symptoms I'm experiencing: Smoking: The car I started smoking, likely from oil or coolant leaking onto hot engine parts. Caused me to pull over at midnight on side of highway and get towed Coolant and oil mixing: I've observed signs of contamination, which may indicate a gasket failure or internal leak. Safety concerns: Due to the risk of overheating or fire, I am not driving the vehicle. The engine could overheat, leading to catastrophic damage. Leaked oil on hot parts could increase the risk of fire. The compromised lubrication can cause engine seizure. …

The contact owns a 2017 BMW 530I. The contact stated that while the vehicle was parked, the message "Refill Coolant" was displayed on the instrument panel. The contact exited the vehicle and discovered a puddle of blue liquid underneath the vehicle. The vehicle was taken to a dealer, where it was diagnosed that there was a leak in one of the hoses and that the hose needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was taken back to the dealer, where it was diagnosed and determined that the radiator and hose needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was taken back to the dealer for a diagnostic test; however, the vehicle was not yet diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

The contact owns a 2007 BMW 530I. The contact stated while driving at various speeds, there was an abnormal burning odor coming from the A/C vents. The contact also noticed the burning odor whenever opening the hood. The message "Service Engine Soon" was displayed. The contact later received notification of NHTSA Campaign Number: 22V119000 (Engine and Engine Cooling). However, the parts to do the recall repair were not yet available. The local dealer was not contacted. The contact stated while driving 65-70 MPH, he noticed smoke coming out from underneath the hood of the vehicle. The contact veered to the side of the road for a moment and then opened the hood. The contact was able to continue driving. The contact stated that the failure had reoccurred on two different occasions. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. …

The contact owns a 2007 BMW 530I. The contact received notification of NHTSA Campaign Number: 22V119000 (Engine and Engine Cooling). The contact stated that while driving at approximately 65 MPH, there was smoke coming from the hood. The "transmission overheating" message was displayed. The vehicle was inoperable. The vehicle was towed to an independent mechanic, where it was diagnosed that the PCV valve and transmission needed to be replaced. The vehicle remained with the independent mechanic awaiting the repair. The manufacturer was made aware of the failure. The approximate failure mileage was 170,000. The VIN was not available.

Related recalls (6)