Mondeo Welding

[richies2.0gl]

I need to weld the rear sills on my 1997 2.0 Ghia Mondeo. What do I need to disconnect electrically to MIG weld it?

Richie

[V8covin]

Nothing.I've never had any problems

[richies2.0gl]

Thank you, didnt know if I needed to disconnect ECU or alternator, but if its OK not to then thats what I will do.

[V8covin]

You can disconnect the battery to be on the safe side but check you have the radio code if it needs one

[robg2]

Supposedly all ECUs, battery and alternator.
I'd definitely do the battery but I've welded without disconnecting the alternator on various occasions and not had any problems.

[Baron_marc]

Have been a panel beater for more years than i care to remember and have never had any trouble with everything still connected

[chris1roll]

We killed an alternator on my mates citroen BX when we forgot to disconnect it.... Could have been coincidence but for 2 minutes spent unplugging some connectors....

[fatjon]

I have often heard that you need to disconnect this and that but in many years I have never disconnected anything and not had a problem with MIG, TIG or stick.

[richies2.0gl]

Well thank you for all of your help and assistance. I have always disconnected the battery (even on my old Cortina, Granada and Capri's). I will just do the same on the Mondeo.