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 2064 (SLIDE/TILT ROOF - REPAIR)ELECTRICAL SUN ROOF COMPONENTS54 0... NOTES ON GLASS SLIDE/TILT SUNROOF (INITIALIZATION/NORMALIZATION/LEARNING OF CHARACTERISTIC CURVE)INITIALIZATION PROCESS

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

Initialization process

2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION Initialization process

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Move switch in "Lift" direction and hold (roof system moves to "Lift" position)
In the event of delayed starting or sudden stopping of the glass sunroof, continue pressing the switch in the "Lift" direction

Fig 1: Display - Glass Sunroof Lift Button
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Hold switch depressed for entire process.

After reaching the fully raised position (A), keep the switch pressed for approx. 30 seconds further (initialization process starts)
Glass sunroof moves briefly from lift end position (A) in direction of position (B)
Shading system (floating headlining) closes completely
Shading system (floating headlining) opens completely

Fig 2: Lifting End Position Of Glass Sunroof
Courtesy of BMW OF NORTH AMERICA, INC.
Glass sunroof moves to "Closed" position
Glass sunroof then moves to "Open" end position and immediately back to "Closed" position
After a brief pause, shading system closes completely

NOTE: Once glass roof and shading system have closed completely, initialization is finished. Switch can be released.

RENDER: 1.0x

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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.