Question about 2005 Mercedes-Benz Sl-Class

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Hooked up cables wrong on my sl600 mercedes and now it will not .

Well i hook up the battery cables on the wrong end like pos/neg and neg/pos it started smoking and now my sl600 mercedes will not start.ive checked the fues and they are not blown i dont know what else to do

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  • michael21783 Feb 27, 2009

    i dont have any power at all i even tryed to hook up another battery but not the same size of battery still no power

  • Seabee Tim May 11, 2010

    Do you have power? Does your dome light come on? You may have blown an inline fuse which would not be in your fuse box, or you may have burned out your ignition module.

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  • 93 Answers

U have probaly blown the ecu.in fact this is very likely

Posted on Feb 27, 2009

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1 Answer

Starter spins correctly when I hook pos to neg and neg to pos


Sounds like someone has changed the starter recently and they have the negative cable from the battery hooked up to the starter solenoid. You need to have the positive cable hooked to the starter solenoid not the negative cable.

Jan 02, 2016 | Cars & Trucks

1 Answer

My 77 Chevy c30 has no power. Jumped started it and drove it home. I turned it off then tried to restart it. No power no lights. nothing. Battery is good. An u help will be appreciated.


If the battery is good you will need to follow flow. Test light is the easiest to use. First hook light to ground and touch pos terminal,lights good next touch pos battery cable end, lights good. Next follow pos cable to starter pos terminal,lights good. Next hook test light to bat pos teminal,touch neg terminal,lights good. Then touch engine block, lights good ground. Next move test light clamp back to ground/neg side and touch alt pos terminal,lights good.if all that tests good, if all good move inside and check for power at ign switch pos term if at any time you dont find power you have wiring issue that needs to be addressed. Let me know what you find. Russ

Mar 29, 2015 | Chevrolet Cars & Trucks

1 Answer

How do I hook up this unit Two wires or four


Almost all car batteries have 2 pos and 2 neg. More precisely, 1 pos post and 1 side connector, 1 neg post and 1 neg side connector. You only usually use use one set or the other depending on what connectors are on the end of your cables. You can connect something else to the side posts if you need to, but generally only pair is used.

Feb 28, 2015 | Cars & Trucks

2 Answers

Someone hooked jumper box up backwards on van and tried ti start it it ran great before that after it wouldn't start at all changed the computer now it starts runs a few mins then shuts off what could it...


You will have to take it to the Dealer. You may have burnt out or the "Control Module" needs to be replaced or reprogrammed. Make sure the battery has not reversed polarity also.

Feb 13, 2015 | Cars & Trucks

1 Answer

I replaced the battery terminal cable ends. Now the car will not start, There is a clicking noise from the starter.


Bad connection on cable ends or where they connect to battery. Quick check is if you have a good set of jumper cables, use the jumper cable as a replacement for what maybe the defective one. Hook negative cable good to battery neg. post and then put other side on neg cable to engine ground on block. See if it cranks, if it does than the trouble is on the neg. cable. If not then put positive cable on pos. post of battery. Then put other side of pos. cable on the starter post, try to start. If it cranks then the trouble is on the pos side of cable. Hope this helps.

Nov 16, 2013 | 1996 Geo Prizm

1 Answer

I got a honda civic si 2003, i change the ground cable for the battery but i forgot to conect one to the motor and now dont start. ???


so let me ask...you have one end hooked up to the neg. on the battery,and are wondering where to connect the end that grounds to the engine?as you know the battery needs both pos. and neg. to be able to allow voltage to pass thru.is your question .where does the other end go?

Feb 10, 2012 | 2003 Honda Civic

1 Answer

Does it hurt your car to jump start another car


only if you hook them the cables up wrong. Always mak sure you have pos side cable from your car to pos to the other car and neg to neg.

Jan 16, 2012 | Chevrolet 1500 Cars & Trucks

1 Answer

Replaced a starter went to hook battier back up and it is sparking pretty good!!!!


Make sure starter end of battery cable is not touching anything else but the mounting post on the starter. Make sure Pos is to pos and neg is to neg

Aug 10, 2010 | 1997 Dodge Neon

2 Answers

How to hook up 2 new batteries


hook them up in parallel, pos to pos, neg to neg from one battery to another, then pos cable to battery prs and ground cable to neg battery

Jul 29, 2010 | Renault Fuego Cars & Trucks

2 Answers

Not sure how to hook up plow motor to battery? Its an old fisher speedcast plow with cable controls thats electic over hydralic.It has pos and neg. cables and a solenoid on the pos. cable. I assume you...


The heavy + should be connected to the battery through the solenoid for the motor. There should be wires to control the solenoid (an electric switch, you know). The - goes to the truck's frame at a place of your choice. The ground must be solid, you know that, right?

I think if I were doing this install, I would hook the plow ground with the battery ground on the fame or where ever it is located.

The plow control should be mounted for your convenience inside the cab.

Lets review: Plow motor | ground to ground, hot to solenoid (motor side) | solenoid (battery side) to battery | solenoid control wires to cab.

Thanks for your question at FixYa.com

Jan 02, 2010 | 1999 Ford F350 Regular Cab

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