Vehicle Data Hub

2018 BMW 430I problems

Owners have filed 50 complaints with NHTSA about the 2018 BMW 430I. Engine is the most reported problem area, at 42% of complaints. Next are electrical system (10%) and seat belts (8%).

At a glance

Complaints
50 filed with NHTSA
Most reported
Engine 42% of complaints
Crashes and fires
8 and 2
Injuries and deaths
8 and 0
Typical mileage
56,000 miles 18 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

  • Engine 42%
  • Electrical system 10%
  • Seat belts 8%
  • Seats 6%
  • Air bags 4%
  • Brakes 4%
  • Drivetrain & axles 4%
  • Fuel system 4%
  • Backover prevention 2%
  • Cooling system 2%

When problems show up

Complaints by mileage, 2018 BMW 430I Complaints by odometer reading in 20,000-mile steps. The median is about 56,000 miles. 0k to 20k miles: 4 complaints 20k to 40k miles: 3 complaints 40k to 60k miles: 3 complaints 60k to 80k miles: 7 complaints 80k to 100k miles: 1 complaints 100k to 120k miles: 0 complaints 120k to 140k miles: 0 complaints 140k to 160k miles: 0 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 56,000 miles
Based on 18 complaints that include mileage. 56% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles4
20k to 40k miles3
40k to 60k miles3
60k to 80k miles7
80k to 100k miles1
100k to 120k miles0
120k to 140k miles0
140k to 160k miles0
160k to 180k miles0
180k to 200k miles0
200k+ miles0

What the data shows

Of the 18 complaints that include odometer readings, half describe a problem before roughly 56,000 miles.

Safety-related details: 8 complaints mention a crash; 2 complaints mention a fire; 8 injuries reported. Its complaints are more severe on average than those of 92% of model years in our database.

It is also covered by 1 safety recall campaign.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

Tl* the contact owns a 2018 BMW 430I. The contact stated that while reversing into a parking space, the contacts foot slipped off the brake and onto the accelerator pedal. The vehicle accelerated in reverse and crashed into a telephone pole. The front drivers seat collapsed out of place and fell backwards. No airbags deployed. The contact sustained neck injuries and the passenger sustained none.

Reported at 24,000 miles, December 2019 CrashInjury

Front driver seat , keep sliding when u hit on breaks on the left legs where seat controls are located the balance between right thigh and left thigh is not well measured so becomes increasingly uncomfortable when thicker person driving the car, could cause an accident and risky, Engine problem - so many coolant leak which has cost me over 6000 dollars to repair and yet Still leaking, when I switch to spot mode this coolant overheat and thrn Another leaking, switch to sports plus more coolant leak Second the seat…

November 2020 CrashInjury

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 car seems to be out of control from the driver/passenger.

Reported at 7,388 miles, October 2018

The contact owns a 2018 BMW 430I. The contact stated that while driving at an undisclosed speed, the low coolant level warning light illuminated on the instrument panel, prompting the contact to refill the coolant reservoir. However, within two weeks, the failure reoccurred. After a visual inspection of the engine compartment, the contact observed an abnormally low coolant level. The vehicle was taken to an independent mechanic, who determined that the coolant was leaking from the reservoir hose.

Reported at 57,000 miles, November 2023

Other model years of the 430I

  • 2027
  • 2026
  • 2025
  • 2024
  • 2023
  • 2022
  • 2021
  • 2020
  • 2019
  • 2018
  • 2017

Best and worst years for the BMW 430I