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Home >> BMW >> 1997 >> 540i Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Engine Electrical System - Repair Instructions) >> Instructions for disconnecting and connecting battery >> 12 00 ... Instructions for connecting and disconnecting test units

12 00 ... Instructions for connecting and disconnecting test units

WARNING: This page is about a different car, the 2003 BMW Z8, 2002 BMW Z8, 2001 BMW Z8, and 2000 BMW Z8. However, it is still accessible from the selected car via links, so may be relevant.

When connecting and disconnecting:

it is essential to turn off the ignition!

Follow instructions for removing and installing electronic control units. Refer to 12 00 ... Instructions for removing and installing electronic control units  .

Follow operating instructions for testing devices.

Make sure that connected test leads cannot make contact with rotating parts (e.g.: fans, ribbed V-belts, etc.).