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 1954 (INTEGRATED SUSPENSION SYSTEMS - REPAIR)PUMP ASSEMBLY WITH CONTAINER37 12... REPLACING LOWER VENT LINE FOR AIR SUPPLY UNIT
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
37 12... Replacing lower vent line for air supply unit
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 37 12... Replacing lower vent line for air supply unit
WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. 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.
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
Disconnect quick-connect couplings (1, 3).
Seal connections of air supply unit supply line and upper vent line with sealing plugs.
Unclip lower vent line (2) and feed out.
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.