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.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1031 (GENERAL ELECTRICAL SYSTEM - REPAIR - E92/93)CONTROL UNITS, MODULES61 35 107 REMOVING AND INSTALLING OR REPLACING JUNCTION BOX ELECTRONICS

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

61 35 107 Removing and installing or replacing Junction Box electronics

2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 61 35 107 Removing and installing or replacing Junction Box electronics

WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection) .

Necessary preliminary tasks:

Disconnect battery negative lead
Remove footwell side trim panel on A-pillar, right. See 41 35 010 REMOVING AND INSTALLING/REPLACING SIDE PANEL, FRONT LEFT OR RIGHT .
Remove trim for instrument panel, bottom right. See 51 45 181 REMOVING AND INSTALLING/REPLACING BOTTOM RIGHT TRIM FOR INSTRUMENT PANEL .

NOTE: Glovebox removed for purposes of clarity.

Disconnect plug connection (1).

Release screws (2) and remove junction box electronics (3) from holder.

Fig 1: Identifying Plug Connection, Screws And Junction Box Electronics

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Installation:

Make sure junction box electronics is correctly seated on plug connection (2) of holder.

Fig 2: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out vehicle programming/coding.

Delete transport mode.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

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.