Disconnecting the battery
- Thread starter Bobby Dazzler
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MB Enthusiast
maybe it is different in other makes of mercs. i shall see if a digital snap of the book might do it
Number_Cruncher
Active Member
If your manual does say disconnect the positive first, I would say that is very likely to be a typo.
In your shoes, I would check with MB before following the dangerous procedure again, and I am being serious that it is a truly dangerous method which was being suggested.
The advice about connecting batteries is one of the first things you are taught on a mechanics course, and the reasons for it are very well drummed in. The wording of your manual flies in the face of this safety rule.
In your shoes, I would check with MB before following the dangerous procedure again, and I am being serious that it is a truly dangerous method which was being suggested.
The advice about connecting batteries is one of the first things you are taught on a mechanics course, and the reasons for it are very well drummed in. The wording of your manual flies in the face of this safety rule.
In my late W202 book(lets) non of the pages quoted mention batteries only wheel trims & parktronic.
Will have a proper look...
Will have a proper look...
Dieselman
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It is unusual to disconnect the +ve first on a -ve Gnd car, for the reasons already mentioned.
The W210 says to disconnect the battery lead in the base of the rear seat base, which is definately on the -ve side.
Mind you, your car is a 180...like this one maybe..??
The W210 says to disconnect the battery lead in the base of the rear seat base, which is definately on the -ve side.
Mind you, your car is a 180...like this one maybe..??
recycled
MB Enthusiast
it certainly is,. Exactly the same colour as well
Here's mine (phone doesn't like close up - but bottom of first column is just readable)
Just flicked through a few haynes manuals and they all match this way around, disconect -ve first, reconnect +ve first.
Manual no: 202 584 82
Nope, the manual from my current car - set of 7 booklets binded in a cloth folder.
Thinking about it yours is a few months younger so they must have updated them in between.
I think yours is for Amercan market:
Where as my version has big words:
Where as my version has big words:
Ian B Walker
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Cringes at undoing the +ve terminal first. ALWAYS the -ve first and I don't care what car you have. Doing up the +ve last and you get spikes to the vehicle electrics ( you may have left the ign on 
). Not a thing you require is it?
). Not a thing you require is it?recycled
MB Enthusiast
Right i have found it now.
Apologies to all. I have to be the big man and accept i was totally wrong. never listen to a bloke off the internet all the time
PAGE 114 of the booklet/. very funny as i had to change it last night, and reconnect it back this morning after a 9hr charge rom leaving the internal light on.
switch off all electrical loads.
Disconnect and remove -ve then +ve.
apologies to stevesey and number crunchman
connect the +ve then the negative.
I must have had a lot of acid going into my brain, but hey i was man enough to own up.
or maybe it was the stress of thinking i may have had to buy a new battery on my meagre wages.
Phew i feel so much better now.
Apologies to all. I have to be the big man and accept i was totally wrong. never listen to a bloke off the internet all the time
PAGE 114 of the booklet/. very funny as i had to change it last night, and reconnect it back this morning after a 9hr charge rom leaving the internal light on.
switch off all electrical loads.
Disconnect and remove -ve then +ve.
apologies to stevesey and number crunchman
connect the +ve then the negative.
I must have had a lot of acid going into my brain, but hey i was man enough to own up.
or maybe it was the stress of thinking i may have had to buy a new battery on my meagre wages.
Phew i feel so much better now.
Last edited:
Ian B Walker
MB Enthusiast
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all credit to you for your post, respect dude, respect.
Fessing up accepted. As we said the danger is mainly a physical one of shorting +ve to the body with the spanner - although as well as your hand the electrics may not like the on/off spikes that happen when you do this.
Assuming you disconnect/reconnect cleanly the order doesn't make any difference to the consumers themselves - it's when you get wrong you find out why there is a right way.
Assuming you disconnect/reconnect cleanly the order doesn't make any difference to the consumers themselves - it's when you get wrong you find out why there is a right way.
Been on the acid as well Ian?
Dieselman
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