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 lines (coaxial lines):

IMPORTANT: Shielded lines may not be repaired!

This may lead to indifferences in noise radiation and interference immunity at contact points in the shield
To satisfy the requirements of the type approval, it is essential to replace shielded cables completely

Fibre-optic cable:

NOTE: Fibre-optic cables are colored differently as follows:

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.

Safety Warning

61 00... Notes on handling wiring harnesses and cables