Engine will crank but not start. There is no communication with the integrated fuel module (TFE) whendiagnosing with ISTA. The following two fault codes will be stored in the DME: 032B43 - Low fuel pressure system, electric fuel pump: pressure value too low CDA594 - Message (- 0x33E) missing, receiver DME, transmitter TFE
full bulletin at NHTSA ↗2012 BMW 750i engine problems
moderate Owners of the 2012 BMW 750i have filed 4 NHTSA complaints about the engine at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
Complaints
4
Recalls
0
Avg fix
$3,100
| Model year | engine complaints |
|---|---|
| 2011 750i | 5 |
| 2012 750i (this page) | 4 |
When does it fail?
Of the 4 engine complaints filed for the 2012 BMW 750i, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA engine complaint has been filed on this vehicle in over 7 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This bulletin outlines the procedure for checking the engine timing chains for wear, and should be completed in conjunction with SI B11 06 14, "N63 Customer Care Package." The N63CCP and N63 Engine Check the Timing Chain are NOT mandatory Technical Campaigns or Recalls. They should be completed only based on parts availability, workshop capacity, and the customer's schedule.
full bulletin at NHTSA ↗N63 CLASS ACTION SETTLEMENT - BATTERY SERVICE BENEFIT - RETROFITS/ REPLACEMENTS: This Service Information bulletin applies to: Class vehicles in operation on the road (Applicable N63 engine model vehicles); by Class members (Class Vehicle owners on the date this settlement became effective), And it provides diagnostic/repairs instructions, as well as, Warranty Information for performed remedies.
full bulletin at NHTSA ↗LIMITED WARRANTY EXTENSIONTO 10 YEARS/120000 MILES: This Service Information Bulletin replaces SI B01 05 18 dated July 2019. Engine starts poorly (hard starting) rough idle and misfires. The Service Engine Soon (MIL) lamp is on.
full bulletin at NHTSA ↗N63: OIL CONSUMPTION CLASS ACTION SETTLEMENT DIAGNOSIS/REPAIRS (VERSION 12.0). What's New: Engine Timing Chain Guide Pre-Inspection (with Valve Stem Seal Repair) instruction added Updated N63 Replacement Engine Assembly/Part statement added Warranty Information section updated, including the current coverage and attachments.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
Tl* the contact owns a 2012 BMW 750i. After charging the vehicle, the "engine compartment hot" warning indicator illuminated. The vehicle was not taken to a dealer or independent mechanic for diagnostic testing or repairs. The manufacturer was not made aware of the failure. The failure mileage was approximately 24,850.
Tl* the contact owns a 2012 BMW 750i. The contact received notification of NHTSA campaign number: 18v248000 (engine and engine cooling); however, the parts to do the repair were unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. BMW of ontario (1350 auto center dr, ontario, ca 91761, (909) 906-4000) was contacted and confirmed that…
Vehicle consumes large amounts of oil. Most oil burns and releases from the exhaust when driving.. Engine requires a replacement from BMW.
The contact owns a 2012 BMW 750I. The contact stated that while starting the vehicle, the vehicle was idling rough. Additionally, while driving at an undisclosed speed, the vehicle was making an abnormal sound. The vehicle was taken to an independent mechanic where it was diagnosed as a timing chain failure. The manufacturer was not made aware of the failure. The failure mileage was 82,000.
Had engine trouble with your 2012 BMW 750i?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2012 BMW 750i?
It's a documented issue but not catastrophic. 4 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 4 complaints filed, engine issues most often appear around 74,283 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2012/BMW/750i.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.