M340i Sedan

48 service bulletins filed with NHTSA for this model year

• Apr 15, 2025STRUCTURE:BODYB010325

  The Radiator Grilles Lower Active Air Flap Assembly limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined from the original first in-service / delivery date.

• Feb 16, 2024ELECTRICAL SYSTEMB640422

  An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap moves to a different position. Due to the complex design of the heating and air-conditioning unit, the kinematics causing it (top or bottom,left or right) may not be able to be precisely located. Depending on the vehicle model, the number o

• Jan 11, 2024ELECTRICAL SYSTEMB611305

  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 information for the dealer on how to handle “discharged battery” complaints.

• Oct 13, 2023SERVICE BRAKES, HYDRAULICB340714

  Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material-

• Aug 1, 2023ENGINE AND ENGINE COOLINGB240323

  ?A software error may cause an unwanted pressure pulsation in the transmission during a "Remote Engine Start."

• Jun 1, 2023ELECTRICAL SYSTEMB630821

  Headlight check control (CC) message 128 "High beam headlight failure" is displayed. The following fault codes are stored during a vehicle test: 80419A - Left high-beam headlight: Short circuit and/or 8041A5 - light outputs: Number of permitted short circuit cycles exceeded

• Jun 1, 2023EXTERIOR LIGHTING:TAIL LIGHTSB630321

  Condensation is present on the inner surfaces in one or both taillights (circled).

• Jun 1, 2023ELECTRICAL SYSTEMB612822

  A limited number of the G20 PHEVs may not have been supplied with an Occasional Use Charging (Standard OUC/Level 1/Mode 2) cable in error.

• and 40 more

Source: NHTSA manufacturer communications (technical service bulletins).