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Home >> BMW >> 2022 >> M4 Base, Automatic Trans >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> General Electrical System -- Repair M4 (G82 & G83) >> 61 35 Control Units, Modules >> Notes on ESD protection (Electro Static Discharge) (M4 2021-2023)

Notes on ESD protection (Electro Static Discharge) (M4 2021-2023)

Special tools required: 

NOTE: Electrical components which are particularly sensitive to electrostatic discharge (electronic control units, sensors, etc.) are marked with the ESD warning symbol.
-Electro
-Static
-Discharge

Attention! 

Refer to SERVICE INFORMATION .

Statically charged persons can discharge themselves when they tap electrical components.

NOTE: Humans can only detect a discharge starting from a level of approx. 3000 V.
The danger threshold for electrical components already starts from a level of approx. 100 V.
G15340403Courtesy of BMW OF NORTH AMERICA, INC.

Example:

Mechatronics control unit.

G15340404Courtesy of BMW OF NORTH AMERICA, INC.
G15340405Courtesy of BMW OF NORTH AMERICA, INC.

Attention!

Do not tap pins and multi-pin connectors directly! 

Only tap the housings of electrical components.

Attention! 

To avoid damaging or destroying electrical components as a result of electrostatic discharge, it is absolutely essential to observe the following instructions:

Personal protective equipment: 

Electrically conducting clothing (high wool content, antistatic shoes required).

These can primarily be identified by the logo on the side.

G15340406Courtesy of BMW OF NORTH AMERICA, INC.