52 25... Removing and installing/replacing massage valve block

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Necessary preliminary work:

Remove LEFT OR RIGHT REAR SEAT

Unfasten plug connection (1) and disconnect.

Remove valve block in direction of arrow.

Fig 1: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Detach all air hoses.

Pay attention to connections (A) and (P) on valve block:

(A) Air hose, blue, from massage pump

(P) Air hose, grey, from massage pump

NOTE: Gently heat the air hoses if too tightly seated on the valve block.

Fig 2: Identifying Connections On Valve Block

Courtesy of BMW OF NORTH AMERICA, INC.