BMW 1 Series (F40) - Noises when the air-conditioning is switched off
| Data sheet | |
| Manufacturer | BMW |
| Vehicle model | 1 series (F40) |
| Engine | All models |
| Year of manufacture | 2019 - 2021 |
| Symptoms | Noises when air conditioning system switched off |
Compressor voltage fault - The buzzing noise occurs when the engine is at idle speed
An undefinable buzzing noise heard in the vehicles mentioned above when the air conditioning is switched off may be caused by the air conditioning compressor.
The buzzing noise occurs when the engine is at idle speed and may be caused by an internal voltage fault in the compressor.
The air conditioning compressor should be replaced to rectify the problem. Before doing so, however, check the wiring for corrosion, loose connections and damage.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval; indication of the document source is also required. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.