There are 4 stored owner reports matching the engine leading-label group for the 2007 BMW 7 Series in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2007 BMW 750i. The contact stated that on several occasions while driving or idling, he heard a rattling noise coming from the engine. The contact then stated that on another occasion while driving, he heard a rattling noise in the engine while making a left turn then the vehicle stalled. No warning lights illuminated. The vehicle was not diagnosed. The dealer was not notified of the failure. The manufacturer was notified of the failure and informed the contact that the VIN was not included in a recall. The failure mileage was approximately 135,000
VALVE SEALS....THERE ARE WAY TOO MANY PEOPLE HAVING THE SAME ENGINE ISSUE ON THESE MODELS FOR NOTHING TO BE DONE. THE VALVE SEALS LET OIL BLOW BY WHICH RESULTS IN MASSIVE OIL LOSS AND COULD RESULT IN ENGINE FAILURE. THEN BMW WANTS EVERYONE TO PAY THOUSANDS OF DOLLARS TO FIX THEIR MESS UP.
TL*THE CONTACT OWNS A 2007 BMW 750LI. THE CONTACT STATED THAT WHILE DRIVING AT 50 MPH, THE CHECK ENGINE AND CHECK ENGINE COOLANT WARNING INDICATORS WERE ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE CRANK SHAFT, PRESSURE REGULATOR AND THE LOWER TIME CASE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 140,000.
THE OIL COOLER ADAPTER PLATE IS DEFECTIVE THE O RING IS DEFECTIVE AND LEAKS OIL ALL OVER EVERYTHING INCLUDING WIRES. IF YOUR CAR DOESN'T HAVE AN EXTERNAL OIL COOLER, THE PLATE, WITH THE O RING SEAL WILL LEAK OIL. THE OTHER SIDE HAS TWO HOLES THAT CAN BE MACHINED FOR THE EXTERNAL OIL COOLER, BUT IF YOUR CAR DOES NOT HAVE THAT FEATURE YOU WILL HAVE OIL LEAKS. COMMON OIL LEAK ON THE V8 N62 AND N62TU ENGINES THAT WOULD BE IN THE E65 7 SERIES AND THE X5 E53. THIS IS THE BEARING BLOCK WHERE THE ALTERNATOR MOUNTS TO. THERE IS A GASKET THAT DEVELOPS A BAD LEAK BECAUSE OF THE SEAL FAILING. THE SEAL HAS NO USE TO THE ENGINE IT IS JUST THERE JUST IN CASE IF YOU GET THE OIL COOLING OPTION AND IF YOU CHOOSE NOT TO GET THE OPTION YOUR CAR WILL LEAK OIL BECAUSE THE SEAL IS NOT SUBSTANTIAL AND THE OIL HAS NO WHERE TO GO, SO IT LEAKS OUT OF THE GASKET. THE LEAK CAN BE QUITE SUBSTANTIAL. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.