The worst 2020 BMW 340I problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 1
Electrical system: starter assembly
- What is wrong
- BMW of North America, LLC (BMW) is recalling certain 2020 340I, X6, 2020-2025 840I, 2020-2022 740LI, 2019-2020 X7, and X5 vehicles. After repeated attempts, the starter motor may overheat from an electrical overload.
- Risk
- An overheated starter motor can ignite nearby combustible material in the engine compartment, increasing the risk of a fire.
- Remedy
- Dealers will replace the engine starter, free of charge. This recall includes vehicles repaired under recall 24V576 and those owners will need to have their vehicle repaired again. Owner notification letters were mailed February 9, 2026. Owners may contact BMW customer service at 1‑800‑525‑7417. Vehicle Identification Numbers (VINs) involved in this recall became searchable on November 17, 2025.
Recall number 25V644000 · Recall details
Technical service bulletins for the 2020 BMW 340I 60
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- The EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been...
- The Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS)...
- Check Control message (CCM) indicates: (ID 213): Stop, exercising due care
- An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in...
- The basic conditions for initializing the power windows are not met.
- The electrical system of BMW vehicles has been subject to an ongoing development process over the last few...
- At low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when parking,...
- A vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP)...
- The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3)....
- Customer states one of the front seats is inoperative
Compare the 2020 BMW 340I
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Questions about the 2020 BMW 340I
Is the 2020 BMW 340I reliable?
Owners have filed 0 complaints about the 2020 BMW 340I.
What is the most common problem with the 2020 BMW 340I?
There are not enough complaints to tell.
How many recalls does the 2020 BMW 340I have?
1 recall, covering electrical system.
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