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2018 BMW 4 Series Gran
Solid pick. The public record on this car is clean for its age. Inspect it, then negotiate with confidence.
34 owner complaints · 0 recalls · data verified July 20, 2026 · source: NHTSA
Why buy?
Engine problems dominate (29% of complaints).
Very few owner complaints for its age and sales volume.
Zero recalls, rare for a car this age.
Score breakdown, by factor
Full methodology →#152 of 479Among the 2018 models with a matured record, the 2018 BMW 4 Series Gran ranks #152, scoring higher than 66% of them. See the 2018 ranking →
Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
How it crashes
NHTSA’s own crash tests, separate from the reliability score above.
NHTSA crash-tested this model year but didn’t publish an overall star rating for it.
Source: nhtsa.gov/ratings. Star ratings compare vehicles within the same class and size, not across every car on the road.
The road ahead
What breaks on a 2018 BMW 4 Series Gran, plotted where owners report it happening.
Also reported (mileage varies): Engine (10) · Engine & cooling (7) · Electrical system (6)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint, a rough guide, not a schedule.
Engine
29%10 complaints · 2 in the last 2 years
“I pulled out onto Southside Blvd. My brakes failed, my driver’s front of the car hit a Waste Management garbage truck right back tire and cut the sidewall of the tire.…”
Engine & cooling
21%7 complaints · 4 in the last 2 years
“The contact owns a 2018 BMW 430I. The contact stated while driving at an undisclosed speed, the engine started overheating with the low coolant warning light illuminat…”
Electrical system
18%6 complaints · 2 in the last 2 years
“I pulled out onto Southside Blvd. My brakes failed, my driver’s front of the car hit a Waste Management garbage truck right back tire and cut the sidewall of the tire.…”
Seat belts
12%4 complaints · 1 in the last 2 years
“Seatbelt alert pops up and noise sounds even when seatbelt is already buckled”
Check it against this car’s mileage
Type the odometer reading on the actual car you’re looking at to see which of these problem areas owners tend to report before it, around it, or after it.
Too few owners named a mileage on this model to place issues against an odometer yet.
Read all 34 owner complaints in their own words → · just the 9 crash/fire/injury reports →
Recalls (0)
No recall campaigns on file for this model year.
Questions to ask the seller
Questions worth asking the seller of this BMW before you buy, drawn from its public record:
- Owners of this model report engine problems more than anything else. Has this car shown any engine symptoms, and are there repair records for it?
- Owners of this model report engine & cooling problems more than anything else. Has this car shown any engine & cooling symptoms, and are there repair records for it?
- Has this car been in any accident or had any structural, airbag, or flood-related repair? Do you have a clean title and a recent history report (Carfax / AutoCheck)?
- How many owners has it had, do you have the maintenance records, and why are you selling it?
- Are you open to me having an independent mechanic inspect it before we settle on a price?
Before you hand over money
Check the VIN for open recalls
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150 to $250 independent inspection of this exact 2018 BMW 4 SERIES GRAN beats every score on the internet, including ours.
What to ask forNot set on the 2018? See how every 4 Series Gran model year scores →
Cross-shopping? Compare the 2018 BMW 4 Series Gran against another car →
What owners say
Real owners of this exact model-year, shown separately from the NHTSA score. If they disagree, that’s worth knowing.