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Home >> BMW >> 2022 >> M4 Base, Standard Trans >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes -- Repair M4 (G82 & G83) >> 34 51 Mechanical-Hydraulic Components >> 34 51 100 Removing and installing the hydraulic unit (M4 2021-2023) >> Installing the hydraulic unit

Installing the hydraulic unit

NOTE: TECHNICAL INFORMATION 
Maintain conditions of absolute cleanliness.
G15332817Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Hydraulic unit to pedal bracket 
Replace nuts.
M8 1x retightening at hydraulic unit after 10 min.
tightening torque  22 Nm
G15332818Courtesy of BMW OF NORTH AMERICA, INC.
G15332819Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
Do not interchange brake lines. Mark the brake lines before disassembly (for example, VL/VR/HR/HL)  .
Do not bend brake lines.
Close off connecting bores with seal plugs.
G15332820Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

Brake pipe screw connection/Union screws 
tightening torque  17 Nm
G15332821Courtesy of BMW OF NORTH AMERICA, INC.
G15332822Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work