Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 870 (INTEGRATED SUSPENSION SYSTEMS - REPAIR)22 PUMP ASSEMBLY WITH CONNECTOR37 12 ... REPLACING UPPER VENT LINE FOR AIR SUPPLY UNIT

2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans

37 12 ... Replacing Upper Vent Line For Air Supply Unit

2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 37 12 ... Replacing Upper Vent Line For Air Supply Unit

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Risk of damage!
Extreme cleanliness must be ensured in the connection area of the vent lines during removal and installation. Even the smallest of dirt particles can cause leakage in the air spring system.

Necessary preliminary tasks:

Remove trim panel for cover on frame side member on right. See 51 71 447 REMOVING AND INSTALLING OR REPLACING PANEL FOR COVER ON LEFT OR RIGHT SIDE MEMBER
Remove front right wheel arch cover (rear section). See 51 71 039 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT WHEEL ARCH COVER (REAR SECTION)
Remove front right auxiliary turn indicator light. See 63 13 200 REMOVING AND INSTALLING/REPLACING FRONT LEFT OR RIGHT AUXILIARY DIRECTION INDICATOR

Release screw (1).

Twist filler duct (2) in direction of arrow out of fluid reservoir for windscreen washer unit (3) and remove.

If necessary, release vent line (4) at mounting points (5) from fluid reservoir for windscreen washer unit (3).

Release screws.

Press off side panel slightly.

Installation:

Tightening torque (front side panel to body area, A-pillar): 6 N.m.

Fig 1: Identifying Quick-Connect Coupling And Vent Line

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect quick-connect coupling (1) and seal lower vent line connection with sealing plug.

Remove vent line (2) from fluid reservoir for windscreen washer unit.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.