Oil pressure pump failure. MANY MODELS AFFECTED. MAINLY B58 ENGINES
The worst 2018 BMW 740I problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Engine2
- Suspension2
- Electrical1
- Seat belts1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine2
- Suspension2
- Electrical1
- Seat belts1
Recalls
No recalls on record for this model year.
Technical service bulletins for the 2018 BMW 740I 233
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- The EVAP systems purge (vent) valve limited warranty for defects in materials and / or workmanship has...
- The front and rear air suspension strut assemblies limited warranty for defects in materials or...
- A situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt”...
- The Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS)...
- For this vehicle, the engine coolant thermostat limited warranty for defects in materials or workmanship...
- Evap system purge (VENT) valve ext ltd wty (ELW) 15/150
- If the manual electronic engine oil level measurement aborts or is inoperative and the vehicles I-level is...
- The engine oil pump assembly coveragefor the issue described in the Service Information Bulletin that...
- One or more of the LED daytime running lights are dim or discolored.
- The basic conditions for initializing the power windows are not met.
2018 BMW 740I fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 3.0L 6‑cyl | RWD | 21 | 29 | 24 |
What 2018 BMW 740I owners say
Most recent owner complaints, unedited.
BMW issued a warranty extension covering air suspension struts for certain vehicles (8 years / 80,000 miles). I own a 2018 BMW 740i. I reported front suspension concerns to an authorized BMW dealership (United BMW, Alpharetta, GA) at 64,354 miles (8/16/23) and again at 77,582 miles(3/19/24. Service records document front suspension issues, including thrust-rod and suspension defects. During these service visits — which occurred within the warranty-extension period — the strut warranty extension was never disclosed or applied. The suspension defect progressed, and I later had to pay out-of-pocket for air suspension strut repairs totaling over $8,500, including OEM BMW front struts. BMW North America has denied reimbursement solely based on mileage, despite documented pre-80,000-mile service visits showing the defect was present and evaluated. This appears to be a failure to disclose an active warranty extension for a known suspension defect, resulting in unnecessary out-of-pocket repairs for a safety-related component.
The contact owns a 2018 BMW 740i. The contact stated when he was starting his vehicle a warning for "chassis" was illuminated. The contact stated that the vehicle was leaning. The contact stated that the driver side of the vehicle was raised from the road by about 4 inches and the passenger side of the vehicle was almost touching the road surface. The contact stated that turning the vehicle to the left or the right was difficult due to the lean of the vehicle. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed and was not repaired. The manufacturer was informed of the failure and referred the contact to the federal safety agency Hotline. The failure mileage was approximately 96,000.
Apparently BMW models like mine have been having the coolant expansion tanks leaking between 60 and 70 thousand miles. This causes the coolant levels to drop and causes engine failures.
Dashboard display randomly flickers and blinks while driving Seatbelt notification chime rings even when the passenger seat is empty.
Compare the 2018 BMW 740I
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Questions about the 2018 BMW 740I
Is the 2018 BMW 740I reliable?
Owners have filed 5 complaints about the 2018 BMW 740I, 1.3 times a typical 740I model year.
What is the most common problem with the 2018 BMW 740I?
Engine and cooling, with 2 complaints. Next is suspension (2).
How many recalls does the 2018 BMW 740I have?
No recalls on record.
What gas mileage does the 2018 BMW 740I get?
Official estimates for the 2018 BMW 740I range from 24 mpg combined. The most efficient version (3.0L 6-cyl, RWD) gets 21 city and 29 highway.
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