BMW X3 Service & Repair Manual: Notes on handling wiring harnesses and cables
The following applies in general:
To avoid damage, observe the following instructions:
- Avoid compressive and tensile loads
- To ensure professional repairs, perform repair work only with BMW-approved or recommended special
tools and spare parts
- Make sure cables are laid without kinks or abrasions
- Ensure non-contacting routing at sharp-edged body parts; use edge protection if necessary
- Secure additionally laid cables/leads with cable ties
The following additionally applies
Shielded cables
Contact points in the shield can cause problems with regard to noise radiation and interference immunity.
Consequently, distinctions have to be drawn between the following types:
Coaxial cable
-
Shielded RTK031 coaxial lines may only be repaired with special crimping tools.
CVBS cables
- CVBS cables may not be repaired.
- CVBS cables must be replaced in their entirety.
HSD cables
- HSD cables may not be repaired.
- HSD cables must be replaced in their entirety.
Fibre-optic cables:
NOTE: Optical fibre cables are colored differently as follows:
- Green = MOST (M edia O riented S ystems T ransport) optical fibre
- Yellow = ISIS (I ntelligent S afety I ntegration S ystem) optical fibres
- Orange=repair fibre-optic cables
IMPORTANT:
-
Optical fibres are permitted to show only one junction point (bridge). Replace optical
fibres if necessary
- Smallest permissible bending radius is 25 mm
- Avoid effects of heat ≥ 85 º
Treating cables and fibre-optic cables .
FlexRay:
It is possible to repair the FlexRay. In the event of damage, the cables can be joined with conventional BUTT
CONNECTORS AND HEAT-SHRINK TUBING.
NOTE:
- FlexRay lines may only reveal one separation point (bride); renew
complete line if necessary.
-
The cable is a twisted cable. If possible, maintain twisted cable after
repair.
Airbag lines:
REPAIRING AIRBAG CABLES
Special tools required:
61 0 300
61 0 400
61 1 100
IMPORTANT:
The contacts can be changed on ultrasonically welded connectors (1).
...
Do not start the engine with help of starting sprays.
Preparation:
Conform with the following when starting the engine with a jump starting cable. ...
Other materials:
BMW X3 Owners Manual > Wheels and tires: Tire damage
General information
Inspect your tires often for damage, foreign
objects lodged in the tread, and tread wear.
Hints
Driving over rough or damaged road surfaces,
as well as debris, curbs and other obstacles
can cause serious damage to wheels, tires and
suspension parts. This is more likely to ...