54 34 ... Mounting of hydraulic components

If line connections on the hydraulic unit or the hydraulic lines remain open for an extended period of time (e.g. storage, maintenance time), they must be protected against the penetration of moisture and dirt particles. Proceed as described below in this respect.

The new method can even be used on older systems.

Screw plugs and cap nuts are included in the "Banjo bolts for hydraulic unit" kit.

Sealing caps, sealing plugs and screw plugs are included in the "Hydraulic repair kit" (all sourcing reference: BMW Parts Service).

Connections on hydraulic unit: 

Use screw plugs (1) for this purpose.

In case of screw plugs from "Banjo bolts ..." kit, use the old seals.

Fig 1: Identifying Screw Plugs

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Connections on cylinder: 

Use seal plugs (1) for this purpose.

In case of connections with cap nuts, use seal plugs (as on hydraulic unit).

Fig 2: Identifying Seal Plugs

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Line connections (old): 

Use screw plugs (1), cap nuts (2) and old seals for this purpose.

Fig 3: Identifying Screw Plugs And Cap Nuts

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Line connections (new): 

Attach seal plug or cap (1) in or to line connection (2).

Fig 4: Identifying Seal Plug Or Cap

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