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The battery drains it self sometimes soon after parking the vehicle. Try starting the car and it is dead, The car starts with Jump Leads. The AA checked it and said that the Alternator is charging the Battery. The car is VW Polo 2007 Model. What could be the problem

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  • Volkswagen Master
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AA or the RAC ---they use failed mechanics trust me on this one ,anyway it could be that you need a new alternator because one of the diodes has packed up so its earthing itself out .Next time you call one out ask if they hold a associated member of the institute of road transport engineers .takes 6 years of college for that exam .Then they might know what their talking about

Posted on Aug 28, 2010

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I parked my 07 cobalt ltz the battery drained and wont take a jump now it wont start or crank


First clean the battery posts, to much corrosion cause cause a no jump start condition. Sometimes a cell or two in the battery is dead. This is why you can't jump start the car. Replace the battery.

Mar 01, 2015 | Cars & Trucks

Tip

Jump-start Jaguar X-type? it's more complicated than you think.


Jump Start of Vehicle Battery


IF THE BATTERY YOU ARE USING TO JUMP-START THE VEHICLE HAS RECENTLY BEEN CHARGED IT MAY STILL BE GASSING, COVER THE VENT PLUGS OR COVERS WITH A DAMP CLOTH TO REDUCE THE RISK OF EXPLOSION SHOULD ARCING OCCUR WHEN CONNECTING THE JUMP LEADS.

Turn off all electrical ancillary circuits such as radio, lights, indicators etc. If the reason for a flat battery is unknown the condition may be as a result of an electrical short circuit, so care must be taken during the Jump-start process and subsequent to connection to ascertain if this is the case. A short circuit or un-isolated ancillary load can cause arcing when the jump leads are connected, a small 'crackle' is normal but any spark or flash is an indication of a problem that should be rectified before attempting to Jump-Start the vehicle.

Jaguar do not recommended that the vehicle is jump started, and If at all possible it is preferable to replace the flat battery with a suitable fully charged unit rather than jump-start the car. However if it is done it should be carried out by suitably qualified personel. Garage services and services like AA and RAC homestart should be used whenever possible.

Obviously there are occasions when carrying out this proceedure yourself is the only practical way proceed.

If there is no option but to jump-start the discharged battery should be removed and recharged immediately after jump starting to avoid permanent damage.

High quality, heavy duty Jump leads must be used as the current consumption during starting is very high, and a voltage loss will be
exhibited though the jump leads, increasing current requirement.

Make sure that the Jump Start battery is of the same voltage as the vehicle, and suitable to provide the required starting current.

MAKE SURE THAT THE ENDS OF THE JUMP LEADS DO NOT TOUCH EACH OTHER OR GROUND AGAINST THE VEHICLE BODY AT ANY TIME WHILE THE LEADS ARE ATTACHED TO THE BATTERY. ARCING AND VERY RAPID DISCHARGE CAN CAUSE THE BATTERY TO EXPLODE.

Connect the jump leads in the following sequence.
Connect Positive Jump Lead to Jump Start battery positive terminal.
Connect Positive Jump Lead to Vehicle battery positive terminal.
Connect Negative Jump Lead to Jump Start battery negative terminal.
Connect Negative Jump Lead to a suitable vehicle ground point at least, 300 mm (12 in) from the battery terminal e.g. engine lifting bracket, do not do not connect directly to the vehicle battery terminal.

Start the vehicle and rev to 2000 rpm, then allow tickover for 5-10 minutes.

Do not attempt continued repeated starting of the vehicle, this will cause heat build up at the terminals and though the jump leads degrading the leads performance and adding to voltage loss.

Allow 3-4 minutes recovery time for the leads and Jump Start battery between attempts to start.

Before disconnecting the jump leads, switch on the heated rear screen, to reduce the alternator voltage peak when the leads are removed, as this can damage electronic equipment.

Disconnect the jump leads in the reverse order to the connecting sequence taking great care not to short the ends of the leads.

Do not rely on the alternator to restore a discharged battery.
Ensure that the battery is recharged or replaced with a fully recharged unit
as soon as possible.

Following Jump-starting of a compleately discharged battery, you may need to carry out a Green ECM drive Cycle, this will allow the powertrain control module to 're-learn' idle values, and most likely need to re-enter your radio code, details of these can be found at. http://www.bluejag.co.uk

on May 31, 2010 | Jaguar X-Type Cars & Trucks

1 Answer

SUV started fine this morning, Came out from work after 10 hours and it will not start. Did not show any signs that the battery was dead, but not enough juice to start. Tried to jump it and could not. Then...


This happens sometimes with dead batteries taht have more than one dead cell in them. Disconnect the Positive battery cable and connect the jumper cables to that directly and the vehicle should start provided the vehicle providing the jump has a battery with enough amperage to turn your motor over. If there is a leak in that front adjustable air shock this will happen again because that compressor will continue to run trying to get the proper pressure on that shock.

Jul 06, 2011 | 2003 Lincoln Navigator

2 Answers

97 concorde,started and ran fine,then my daughter did not start the car all winter.It sat with huge mounds of snow on it.Now battery is dead,every time i jump it,it will turn over but won"t stay on...


cheapest thing to start with is to buy a new battery. they arent built to last. if that doesnt help then its your alternator. sounds like its gonna be the alternator though. you can test it with a test light though or some alternator repair shops will look at it for free. it will only take them a minute to do if you feel like taking the alternator in

Jun 17, 2011 | 1997 Chrysler Concorde

1 Answer

My friend has on 04 Murano. She couldn't start it due to either battery or alternator. (We're yet to find out) We had to put it in neutral to move it out from her parking spot in order to try and jump...


Most cars have a release button under the steering wheel. It will be recessed and hidden under a plastic plug. You would have to use a long screwdriver to stick in the hole and push on the release button. I think the button releases the gear shift so it can be moved the the park position. It's unusual that you could not jump start the vehicle. I have run into a few cars that the battery was so drained that they would not take a jump until the jumper cables were left hooked up for a few minutes with the jumper car running at fast idle. Since the battery went dead, there may be an issue with the GM anti theft system. Sometimes the security system, will prevent the car from starting, even with a new battery. If it happens, you will have to take the car to a dealership to get the car started. More of GM's faltering engineering.

Feb 16, 2011 | Nissan Murano Cars & Trucks

1 Answer

I bought an audi a3 1.6 in october 2009 not knowing that the heater or the radio didn't work-i mention this just in case it is relevant to the battery drain.approx after one month the car wouldn't start...


Hi Anne,
With all vehicles using electronic computer management systems, there is always very low consumption of power from the battery, as these systems are running all the time. However even with those systems running you should be able to leave the car parked for a period considerably longer that one week.

As the AA has confirmed that the charge rate is correct from the alternator, I would suspect the replacement battery. Make sure that the size (The amp hour capacity is correct for your vehicle) If it's too small the systems may drain it during the time indicated....

I doubt very much that you have a short circuits in the vehicle, but to be on the safe side take it along to a shop who have an auto electrician and let them carry out the relevant tests.

I suspect the battery.

Regards Johngee10

Jan 25, 2011 | Audi A3 Cars & Trucks

1 Answer

Vehicle was parked and not started for 2 months.


Hi, there will be diodes in the generator that are letting the power from the battery drain away through the parked times when not in use. to prove it charge the battery- then disconnect the negative terminal on the battery, connect 24 hours later and see if the battery as kept it charge, if so - fit new alternator, good luck.

Feb 22, 2010 | 2001 Lexus ES 300

3 Answers

Is it good to jump start a car with a new vehicile


Yes it is ok to jump start a car with new car

Feb 22, 2010 | 2008 Jeep Wrangler

1 Answer

Needs a jump every day


It sounds like the battery has a dead cell in it. Replace the battery. If you have an alarm installed remove the in line fuse from the alarm and see if that stops the battery drain.

Oct 11, 2009 | 2003 GMC Yukon XL

1 Answer

Ford fiesta 1.3 97 petrol sometimes won't start


change battery ,if it starts with jump leads battery flat or altenator not charging

Nov 17, 2008 | 1998 Ford Escort

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