13 41 100 Removing And Installing/Replacing Supplementary Air Line (S54)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW M3, 2005 BMW M3, 2004 BMW M3, 2003 BMW M3, and 2002 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Necessary Preliminary Tasks:

Remove microfilter housing

This operation is described in 51 71 080 REMOVING AND INSTALLING/REPLACING HEATER BULKHEAD .

Press locks.

Detach engine ventilation hose.

Fig 1: Locating Engine Ventilation Hose

G03118242

Courtesy of BMW OF NORTH AMERICA, INC.

M3 CSL Only:

Open clamp (1) and detach hose (2).

Unfasten plug connection (3) and disconnect.

Replacement Only:

Release screws (4) and remove pressure sensor.

Fig 2: Identifying Plug Connection

G03118243

Courtesy of BMW OF NORTH AMERICA, INC.

Detach vacuum hose (5) from supplementary air line (4).

NOTE: For purposes of clarity, this operation is shown on the removed engine.

Fig 3: View Of Vacuum Hose And Supplementary Air Line

G03118244

Courtesy of BMW OF NORTH AMERICA, INC.

Press lock together and detach air hose (1) from supplementary air line (2).

NOTE: Illustration shows intake air manifold removed.

Fig 4: View Of Air Hose For Supplementary Air Line

G03118245

Courtesy of BMW OF NORTH AMERICA, INC.

Release threaded connection for fuel injector rail and supplementary air line on left and right.

Pull out supplementary air line together with pipe neck towards top.

NOTE: Illustration shows intake air manifold removed

Fig 5: Locating Threaded Connection For Fuel Injector Rail

G03118246

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check O-rings of pipe necks for damage, replace if necessary.

Coat all O-rings with petroleum jelly or with SAE 90 gear oil.

Fig 6: Identifying O-Rings Of Pipe Necks

G03118247

Courtesy of BMW OF NORTH AMERICA, INC.