Colin747 Posted March 22, 2017 Share Posted March 22, 2017 I went out to start my 350 this morning, turned the key and nothing happened. Had a look at the battery and the positive terminal seemed to have worked lose, I pushed it back on and the car started fine so off I went. Just as I got into work I remembered that you're always supposed to disconnect the negative first. Is there any chance this could have caused any damage etc? Or is there anything I can do to check/minimise etc. Quote Link to comment Share on other sites More sharing options...
Strudul Posted March 22, 2017 Share Posted March 22, 2017 It's only a safety precaution (in case you short it accidentally). Quote Link to comment Share on other sites More sharing options...
coldel Posted March 22, 2017 Share Posted March 22, 2017 It should be ok - your car is grounded via the negative cable, so removing that first will mean no chance of a short. Assuming you didnt push the positive back on with a metal spanner or anything? Quote Link to comment Share on other sites More sharing options...
Colin747 Posted March 22, 2017 Author Share Posted March 22, 2017 Assuming you didnt push the positive back on with a metal spanner or anything? haha nope, I just pushed using the plastic cover that's on the positive. Thanks for your help guys. Quote Link to comment Share on other sites More sharing options...
ZMANALEX Posted March 22, 2017 Share Posted March 22, 2017 It will; be fine just make sure that they are both now spanner tight and not just pushed down. Quote Link to comment Share on other sites More sharing options...
Spoons Posted March 23, 2017 Share Posted March 23, 2017 The reason they say to disconnect the negative first and then last when re-fitting. It's because the negative is the low tension side of the circuit and as stated stops/reduces risk of any voltage spikes that will blow fuses etc. If your car functions as normal you will be fine, usually the worse you can do is pop fuses. Quote Link to comment Share on other sites More sharing options...
gsexr Posted March 23, 2017 Share Posted March 23, 2017 The reason you disconnect the negative first is so you don`t create a short with the spanner when you disconnect the live if you accidentally touched it against the bodywork whilst still touching the live terminal of the battery. Quote Link to comment Share on other sites More sharing options...
veilside z Posted March 23, 2017 Share Posted March 23, 2017 I remember doing that once ... Connected the live last, whilst still clutching the spanner, and then an almighty arc flash, and burnt a hole the inner wing. Quote Link to comment Share on other sites More sharing options...
Olly350z Posted March 23, 2017 Share Posted March 23, 2017 I too have have done this myself many a time over the years. What a shocling experience Quote Link to comment Share on other sites More sharing options...
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