2020 BMW M340i Service and Repair Manual
2020 BMW M340i service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
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BMW of North America, LLC (BMW) is recalling certain 2019-2021 330i, 330i xDrive, M340i xDrive, 2020-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, 2021 X3 xDrive30e, X4 xDrive30i, and X4M vehicles.
An improperly welded seat frame may not properly restrain the occupant during a crash, increasing th
Dealers will replace the seat frame and back rest, free of charge. Owner notification letters were
BMW of North America, LLC (BMW) is recalling certain 2018 540d, 2018-2020 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 530e, 530e xDrive, X3 sDrive, X3 xDrive, X3 M40i, X3 M, and 2019-2020
The lack of an image in the back-up camera display increases the risk of a crash.
BMW will notify owners, and dealers will update the back-up camera software, free of charge. The re
BMW of North America, LLC (BMW) is recalling certain 2020 330i, 330i xDrive and M340i vehicles. The interior trunk release cable may have been improperly installed, preventing the opening of the trun
If a person were inside the trunk compartment, they may not be able to get out, increasing their ris
BMW will notify owners, and dealers will inspect the interior trunk release cable and properly insta
BMW of North America, LLC (BMW) is recalling certain 2020 X3 xDrive30e, X4 xDrive30i, X4 M40i, X4M, 330i, 330i xDrive, M340i, 840i Gran Coupe, 840i xDrive Gran Coupe, M850i xDrive Gran Coupe, M8 Gran
If the air bag and/or seat belt pretensioners deploy improperly in the event of a crash, there is an
BMW will notify owners, and dealers will inspect and replace the front seat belt buckles, as necessa
BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 x
If the driver relies on only the rearview camera image, the missing or reduced rearview image view c
BMW will notify owners, and dealers will inspect the rearview camera software and update it if neces
BMW of North America, LLC (BMW) is recalling certain 2019-2022 330i, 330i xDrive, M340i, 2022 430i Coupe, 2021-2022 430i, M440i Convertible, and 2020-2022 228i xDrive Gran Coupe vehicles. The receive
An audible chime that does not properly alert the driver to fasten their seat belt increases the ris
Dealers will update the receiver audio module software, free of charge. Owner notification letters
BMW of North America, LLC (BMW) is recalling certain 2019 Z4 sDrive30i, 2019-2020 330i xDrive, M340i and M340i xDrive, 2020 X3M and X4M, and Toyota Supra vehicles. In certain driving conditions, such
A damaged or fractured tie rod may affect vehicle handling and control, increasing the risk of a cra
BMW and Toyota will notify owners, and dealers will replace the steering gear tie rods, free of char
BMW of North America, LLC (BMW) is recalling one 2020 M340i and one M340i xDrive vehicle. Due to improper welding, the rear center headrest may fold in the event of a rear impact crash.
If the headrest folds down in a crash, there would be an increased risk of injury.
BMW will notify owners, and dealers will replace the rear center headrest, free of charge. The reca
BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021 Toyota Supra vehicles. Dur
Loss of braking assist can increase the risk of a crash.
Dealers will update the engine management software, free of charge. Owner notification letters were
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.
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 ho
Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material-
?A software error may cause an unwanted pressure pulsation in the transmission during a "Remote Engine Start."
The left front suspension's aluminum strut dome (general area circled) was incorrectly riveted to the body's wheel-well.
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 permi
BMW AG has issued a Delivery Stop effective June 6, 2023 on certain Model Year 2023 - 2024 BMW vehicles that were produced between October 26, 2022 and May 8, 2023.
With the introduction of the BMW Remote Software Upgrade, all Service Pack 18 vehicles and partial Service Pack 15 vehicles may receive new functionality or modifications in their features.
Showing the 8 most recent of 251 technical service bulletins on file with NHTSA.
Engine oil pump is failing. Early production 2019-2020 model years are made of plastic which can crack and break resulting in engine failure while driving. This is a well documented issue regarding th
Component: Front differential / xDrive drivetrain system. Vehicle is available for inspection upon request. Description: My 2020 BMW M340i xDrive has exhibited a persistent whining noise from the fro
Component: Front differential / xDrive drivetrain system. Vehicle is available for inspection upon request. Description: My 2020 BMW M340i xDrive has exhibited a persistent whining noise from the fro
Showing the 3 most serious of 60 complaints filed with NHTSA.
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