52 15 055 Removing and installing/replacing lumbar support on front seat

Necessary preliminary work:

Detach backrest cover from backrest frame in marked area.

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Unlock and disconnect plug connection (1) on lumbar support pump.

Unlock and disconnect plug connection (3) on valve body.

Release cable strap (2).

Installation note:

Completely remove remnants of cable ties.

Replace faulty cable straps.

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Version with backrest width adjustment only.

Unlock and disconnect additional quick connector (4).

Detach valve body (2) from spring wire.

Detach lumbar support (3) from spring wire.

Press padding forward a little.

Carefully pull out lumbar support pump (1) downward with lumbar support (3) and valve body (2).

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Installation note:

Attach lumbar support on second and fifth wire from the bottom.

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Installation note:

Check lumbar support at top (1) and bottom (2) for damage.

Air hoses (3) must not be kinked.

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Installation note:

Run a function check.