AI Damage2018 BMW M240I: common problems
Owners of the 2018 BMW M240I filed 2 complaints with NHTSA, most often about electrical system and exterior lighting. The maker issued 53 service bulletins for this year. We found 1 repair videos on YouTube. Details by component below, with sources.
Key figures
- Owner complaints
- 2
- Technical service bulletins (TSB)
- 53
- YouTube repair videos
- 1
What fails most often
- 1 Electrical system 50% of all complaints
- 2 Exterior lighting 50% of all complaints
- Electrical system: 1 complaints (50% of all); manufacturer bulletins for this component: 15.
- Exterior lighting: 1 complaints (50% of all); manufacturer bulletins for this component: 1.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 3 L · petrol · turbo · 6 cyl
- automatic, 8-speed
- manual, 6-speed
Drive: RWD, AWD
Symptoms owners describe
How many of the 2 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 1 | 0 | 15 |
| Exterior lighting | 1 | 0 | 1 |
| Equipment | 0 | 0 | 23 |
| Engine and cooling | 0 | 0 | 9 |
| Service brakes | 0 | 0 | 5 |
| Engine | 0 | 0 | 4 |
| Visibility | 0 | 0 | 4 |
| Fuel system | 0 | 0 | 3 |
| Steering | 0 | 0 | 3 |
| Air bags | 0 | 0 | 2 |
| Backover prevention | 0 | 0 | 2 |
| Powertrain | 0 | 0 | 2 |
| Wheels | 0 | 0 | 2 |
| Communication | 0 | 0 | 1 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
2018 BMW M240i - no sound from radio, or any aux input. May be blown amplifier. Extremely loud crackling sound, intermitent sound.
Each of the two LED taillights have failed. The right rear LED turn signal failed in the Spring of 2022 when the car had approximately 12,000 miles of use and the left rear LED turn signal failed in the Fall of 2023 when the car had approximately 15,000 miles of use.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,862 of 2,102 model years in the NHTSA data (among the 11% least complained about).
On average one model year of the M240I has 1 complaints (9 years in the data). This year has 2, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been…
The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in-service date.
- The electrical system of BMW vehicles has been subject to an ongoing development process over the last few…
The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important…
- At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e
when parking, maneuvering)with a large steering angle, the front end can be slightly axially misaligned. This can be felt (jerking)/ heard via an acoustic acknowledgement (clunk) as seen at the 11 second mark of the…
- PRESSURE CONTROL VALVE (PCV) EXTENDED LTD WTY 15 YEARS/150,000 MILES
- Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop
- After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes…
- The 3G network in the US has been shut down
This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. For this purpose, the SIM card must perform an IMS registration in the…
- After an automatic engine start (MSA start), the transmission intermittently goes into the Park "P" or…
After an automatic engine start (MSA start), the transmission intermittently goes into the Park "P" or Neutral "N" position without any customer influence.
- The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain…
The Headunit High (HU-H), also called NBT, began replacing the Car Information Computer (CIC) on certain MY2013 vehicles with option 609 (as of 7/2012 production). This uses map North America NEXT. The Headunit High 2…
- The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head
This would lead to loss of coolant from the engine.
- Component and Issue Specific Limited Emission Warranty Extension
This bulletin is notice of a limited emission warranty extension. This is NOT a notice of a Recall or Service Action. There is no immediate repair required unless the BMW vehicle is currently experiencing this problem…
- Component and Issue Specific Limited Emission Warranty Extension
This component-specific limited emission warranty extension applies to defects in materials or workmanship.
NHTSA lists 53 bulletins for this year; the 12 newest are shown here.
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other years of this model
Questions and answers
What are the most common problems with the 2018 BMW M240I?
Owner complaints to NHTSA most often mention: electrical system, exterior lighting. Total complaints: 2. The most frequent symptoms in complaint texts: headlights and tail lights (50%), infotainment or screen glitches (50%).
How many service bulletins (TSB) were issued for the 2018 BMW M240I?
NHTSA lists 53 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 BMW M240I from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.