3 Series E46 316i (M43TU) SAL
Removal and installation of components, relays, fuse, etc. could cause the storage of faults in fault memories of control
units capable of self-diagnosis. For this reason, fault memories must always be interrogated after working on the
electrical system.
Stored faults must be investigated and cancelled.
On vehicles with airbag systems, follow relevant instructions,
refer to MG 32 and MG 72.
Conform with fire and accident prevention regulations!
When welding while control units are installed, observe the following instructions:
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Disconnect battery ground wire(s) and cover up negative terminal,
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If welding is performed near the battery/batteries, remove it/them (flying sparks, combustion of explosive gas),
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Position return flow clamp of welding unit as close as possible to the welding point and establish a good
conducting link to the body (i.e. not on rubber mount or similar item), max. distance approx. 1 m,
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Never use a ground pin at which wires have been secured as a ground point for a welding tool (if this is the only
point available, first remove all wires and protect thread with a nut).
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Otherwise, especially for inert gas welding, watch for heat development (decision required on case-by-case basis).
Vehicle with GPS Navigation System:
After welding work, recalibrate magnetic field sensor,
refer to Functional Description in DIS.
RA General information about body repair
BMW AG - TIS
19.01.2013 13:50
Issue status (12/2007) Valid only until next DVD is issued
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