2018 BMW 330iProblems, recalls & complaints

NHTSA has logged 32 owner complaints about the 2018 BMW 330i, most often about the engine. It is covered by 1 safety recall, and for recall 18V-465 the manufacturer reports only 98% of affected cars repaired.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through March 31, 2026. Updated daily.

Complaints by system

Where the 2018 BMW 330i has problems

32 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Engine121
Fuel/propulsion system41
Electrical system42
Engine and engine cooling20
Vehicle speed control20
Steering10
Structure10
Tires10
Visibility/wiper10
5 other systems50

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

1 recall

2018 BMW 330i recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with BMW.

Best & worst years

2018 vs. every other 330i year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the 330i median. How we score

'99'00'01'02'03'04'05'06'07'08'09'10'11'17'18'19'20'21'22'23'24'25'26
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
1 investigation

NHTSA defect investigations

Federal investigations that included the 2018 BMW 330i, and the recalls they led to.

  1. Desiccated Air Bag Inflator RuptureEA21002 · still open
    Open
In owners' words

What 330i owners report

Recent engine complaints filed with NHTSA, shortened. Personal details are removed.

The engine overheated and suddenly lost power/ acceleration while driving in rush hour traffic at highway speed. I had to move across 3 lanes of traffic to get on to shoulder of highway safely while car and engine sputtered and slowed to a stop with no power or acceleration. After having vehicle…
Complaint 11728378 · Mar 31, 2026
The coolant system and oil housing filters. The entire coolant system components fails in this vehicle after 60,000 mile due to the parts not being all aluminum. This fix alone is about 8k from the BMW Dealership. This isn’t fair to the customer! This needs to be a recall! The parts needs to be…
Complaint 11715764 · Feb 5, 2026
Car keeps overheating. Water pump, water hose and expansion tank have been replaced several times and the car still overheats.
Complaint 11680483 · Aug 13, 2025

Own a 2018 330i?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.