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Home >> BMW >> 2021 >> 430i 2D Convertible >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Motor Systems >> Engine Electrical System -- Repair (G22, G23 & G26) (1 Of 2) >> 12 36 Electric Powertrain Control Unit, Brush Module, Radial Shaft Seal >> 12 37 913 Replacing the pressure compensation element in the brush module lid, rear (Drive unit removed) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan) >> Removing the pressure compensation element from the lid of the brush compartment

Removing the pressure compensation element from the lid of the brush compartment

Removing the pressure compensation element from the lid of the brush compartment 

Precondition 

Second person available for the entire duration of the repair

All special tools clean and free of grease

Clean workstation

Clean hands

NOTE: A second person must be available to the person performing the task for the entire duration  of the repair process.
The second person has the following tasks: 
Check that the bonding surfaces are cleaned properly.
Check of correct installation of the pressure compensation element.
Check that the special tools are handled as prescribed.
Check of correct repair in accordance with the repair instructions.
G15544947Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The bonding surface must be free of adhesive residue, greases and cleaning agents.
G15544948Courtesy of BMW OF NORTH AMERICA, INC.
CONSUMABLE SPECIFICATION

Safety cleaning agent 2.0  500 ml, Spray can 83192362037
20 l, Canister 83192362038
60 l, Canister 83192362040

12 37 920 Replacing the lid for brush module (drive unit removed)

Removing the pressure compensation element from the lid of the brush compartment 

Precondition 

Second person available for the entire duration of the repair

All special tools clean and free of grease

Clean workstation

Clean hands

NOTE: A second person must be available to the person performing the task for the entire duration  of the repair process.
The second person has the following tasks: 
Check that the bonding surfaces are cleaned properly.
Check of correct installation of the pressure compensation element.
Check that the special tools are handled as prescribed.
Check of correct repair in accordance with the repair instructions.
G15544949Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The bonding surface must be free of adhesive residue, greases and cleaning agents.
G15544950Courtesy of BMW OF NORTH AMERICA, INC.
CONSUMABLE SPECIFICATION

Safety cleaning agent 2.0  500 ml, Spray can 83192362037
20 l, Canister 83192362038
60 l, Canister 83192362040