BMW 7 Series: Replacing Power Distribution Box (Luggage Compartment)
WARNING: Observe SAFETY INSTRUCTIONS for handling vehicle battery.
Necessary preliminary work
- Clamp off BATTERY NEGATIVE LEAD
- Disconnect both negative battery cables at F03
- Remove FLAP IN LUGGAGE COMPARTMENT TRIM PANEL on right
- If necessary, remove right WHEEL ARCH PANEL (at F01/F02/03)
Disconnect plug connection (1).
Unscrew nuts (2).
Remove power distribution box (3).
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Fig. 177: Identifying Power Distribution Box With Plug Connection And Nuts
Disconnect all plug connections.
Remove power distribution box (1).
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Fig. 178: Identifying Power Distribution Box
SPECIAL TOOLS FOR WIRING HARNESS REPAIRS
Notes
Repair range, vehicle electrical system
Single parts for wiring harness repairs*
* Sourcing reference: BMW Parts Department
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Fig. 179: Identifying Special Tools For Vehicle Electrical System Repairing
Release and press-out tool
- Special tool 61 0 300
- Special tool 61 0 400 (MINI N12/N14)
- Special tool 61 1 100 (engine)
Handling:
- INSTRUCTIONS FOR OPENING CONTACTS AND LOCKS of different plug contact systems
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Fig. 180: Identifying Special Tool (61 0 300)
Cutting to length and stripping insulation from cables
Wire stripper MultiStrip10*
*Sourcing reference
Handling:
- CUTTING CABLES TO LENGTH AND STRIP INSULATION
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Fig. 181: Identifying Plier
Crimping stop parts (small contacts) and butt connectors
- Special tool 61 4 320
- Tool without crimping head
- Crimping head (STRIPPING INSULATION AND CUTTING FIBRE-OPTIC CABLES TO LENGTH)
- Crimping head (CRIMPING FIBRE-OPTIC CABLE CONTACTS)
- Crimping head (CRIMPING MQS CONTACTS)
- Crimping head (CRIMPING MPQ CONTACTS)
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Fig. 182: Identifying Crimping Heads
- Replacement blade (face-cutting fibre-optic cables)
- Replacement blade with tool (insulation stripping unit)
- Universal crimping head
Crimping stop parts (large contacts) and butt connectors
- Special tool 61 0 200 (crimping set)
- Special tool 61 0 210 (matrix set SLK 8)
- Special tool 61 0 220 (matrix set SLK 2.8)
- Special tool 61 0 230 (matrix set MAK 8/DFK4)
- Special tool 61 0 240 (butt connector 4.0 - 6.0 mm2 )
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Fig. 183: Identifying Special Tools
TREATING CABLES AND FIBRE-OPTIC CABLES
Notes
NOTE: Special tools referred to in the repair instructions below are contained in the following special tool kits:
SPECIAL TOOLS DESCRIPTION CHART
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Subject of repair instructions
- SPECIAL TOOLS FOR WIRING HARNESS REPAIRS
- CUTTING CABLES TO LENGTH AND STRIP INSULATION
- Crimping stop parts (contacts)
- BUTT CONNECTOR FOR REPAIRING A PLUG CONNECTION
- COMB CONNECTOR FOR RETROFITTING/REPAIRS
- Cutting to length and stripping insulation from optical fibres and crimping optical fibres
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Distribution Box, Power Support Points
WARNING: Observe SAFETY INSTRUCTIONS for handling vehicle battery.
Necessary preliminary work
Disconnect BATTERY CABLE
Fold up covers (1). Unscrew nuts (2).
Tightening torque 61 21 2AZ.
Unscrew n
(Safety) Information On AGM Battery
Fig. 188: Identifying AGM Battery
Introduction
In September 2002, the first so-called VRLA batteries, better known as AGM
batteries came into use. (VRLA
means V alve R egulated L ead A cid, i.e. lea
SEE MORE:
Front Camera
REMOVING AND INSTALLING/REPLACING CAMERA FOR LANE DEPARTURE
WARNING
IMPORTANT: Read and comply with notes on protection against electrostatic
damage (ESD
PROTECTION).
Expand two-part mirror base cover (1) by pressing from below and detach.
Feed out two-part mirror base cover (1) and remove.
NOTE:
Crimping Micro Power Quadlock Contacts (MPQ)
Notes
To crimp MPQ contacts, use hand pliers 61 4 321 (1) in conjunction with
crimping head 61 4 325 (2) from
crimping set 61 4 320.
NOTE: Hand pliers (1) open automatically as far as they will go when
handles are
pressed together.
Fig. 136: Identifying Hand Pliers With Crimping Head (61 4 325)
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