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Home >> BMW >> 2021 >> X4 M Base >> Repair and Diagnosis (Single Page) >> Electrical >> Charging Systems >> General Electrical System -- Repair (F98) >> 61 35 Control Units, Modules >> Notes on ESD protection (Electro Static Discharge)

Notes on ESD protection (Electro Static Discharge)

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

E - Electro

S - Static

D - Discharge

Attention!

G04727627Courtesy of BMW OF NORTH AMERICA, INC.

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.
G04727628Courtesy of BMW OF NORTH AMERICA, INC.

Example:

Mechatronics control unit.

G04727629Courtesy 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:

G05780043Courtesy of BMW OF NORTH AMERICA, INC.

Personal protective equipment: 

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

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