3241... Notes on hydraulic line with quick-connect coupling

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 335i, 2010 BMW 328i, and 2010 BMW 323i. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Quick-Connect Coupling With Id Marking

Courtesy of BMW OF NORTH AMERICA, INC.

Removing

Push quick-connect coupling (1) against pipe (4) (thereby relieving strain on spring (2)).

Press plastic ring (3) into quick-connect coupling (1) and remove coupling (1).

Assembly

Markings (K) on coupling (1) and pipe (4) must be flush.

Push quick-connect coupling (1) onto pipe (4) until a "click" can clearly be heard.

To check that quick-connect coupling (1) has been installed correctly, pull it back forcefully.

Fig 2: Quick-Connect Coupling With Indication Pins

Courtesy of BMW OF NORTH AMERICA, INC.

Removing

Press plastic ring (2) into quick-connect coupling (1) and remove coupling (1).

Assembly

When replacing hydraulic line: remove transportation lock (T).

Push quick-connect coupling (1) onto pipe (3) until both indication pins (4) can be seen and felt to point outwards at outside diameter of housing.

To check that quick-connect coupling (1) has been correctly fitted, feel indication pins (4) at outside diameter of housing. When correctly seated, indication pins (4) cannot be pressed into housing.

IMPORTANT: Coupling is not correctly engaged if both indication pins (4) fail to protrude from housing. Leakage is thus unavoidable.