2018 Bmw 430I: Reliability Data

Source: NHTSA — 46 complaints
46
Total Complaints
55,674mi
Median Mileage
ENGINE
Top Issue
7
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

26,250 25th Percentile
55,674 Median Mileage
74,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ENGINE
13
ENGINE AND ENGINE COOLING
7
SEAT BELTS
4
ELECTRICAL SYSTEM
4
SEATS
3
UNKNOWN OR OTHER
3
SERVICE BRAKES
2
POWER TRAIN
2
FUEL/PROPULSION SYSTEM
2
VISIBILITY/WIPER
1

Severity Assessment

7
Crashes
2
Fires
8
Injuries
0
Deaths

Sample Complaint Reports

"WHILE PARKED, CAR WENT ON WITH GEAR SHIFT FAILURE WITH A NOTE TO TAKE IN FOR SERVICE, NO LIGHTS ON GEAR SHIFT. RESTARTED CAR WITH IT FUNCTIONING AS NORMAL. 2 HOURS LATER, DOORS UNLOCK ON ITS OWN AND ALL WINDOWS, SUNROOF ALSO OPEN ON ITS OWN WHILE IN MOTION. NOT EXACTLY SURE WHAT IS THE DEFECT AS THE..."
"WHILE PARKED, CAR WENT ON WITH GEAR SHIFT FAILURE WITH A NOTE TO TAKE IN FOR SERVICE, NO LIGHTS ON GEAR SHIFT. RESTARTED CAR WITH IT FUNCTIONING AS NORMAL. 2 HOURS LATER, DOORS UNLOCK ON ITS OWN AND ALL WINDOWS, SUNROOF ALSO OPEN ON ITS OWN WHILE IN MOTION. NOT EXACTLY SURE WHAT IS THE DEFECT AS THE..."
"I PULLED IN MY DRIVEWAY AND TURNED OFF THE ENGINE. I USED THE INTERNAL BUTTON TO OPEN THE TRUNK THEN OPENED MY DOOR AND GOT OUT OF THE CAR. THE KEY WAS IN MY PURSE ON MY SHOULDER. I WAS REACHING INTO THE TRUNK TO GATHER MY BELONGINGS, AND THE CAR MADE A STEADY ALARM SOUND I HAD NEVER HEARD BEFORE..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28