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I can't unlock my mercedez A200 to get into the bonnet to check if the battery is flat

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Need to use a tool to manually open the door..

Posted on Dec 28, 2013


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The battery may be flat. Read the manual on using jumper leads and try again. Also check for proper contact between the battery p[ole and the cable, positive and negative.

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Peter, call towing service normally they have the tools to gain access to locked vehicles
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I have to say that the simplest would be to call AA, they're usually quite adept at opening bonnets if the battery is dead (preventing access to the bonnet release).

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Sounds like the battery went dead with the security system on. This means you cannot pull bonnet handle.

To release the bonnet, buy a male-2-male cigarette lighter cable at any auto part store. Connect the cable between the two cars. (WARNING: Do not try to start the car with this configuration.) Unlock the door with the key and the bonnet should open. Now you can service or jumper the battery.

Note: Some porsches also have a red pull-out jumper by the fuse box.

Apr 14, 2010 | 2000 Porsche Boxster

1 Answer

I have a toyota hilux utility 2000 model. I am trying to open the bonnet to access the battery terminals to power up the electronics as I have central locking and cannot open the vehicle with the key...

Do you have the original key for this vehicle. If so you can unlock the door with this key. Even if the battery is flat. Allowing you to access the bonnet release catch.

Apr 04, 2010 | 1995 Toyota Pickup

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Nissan pathfinder battery flat, emergency key wont open doors to get into lever for bonnet

Will the key open the tailgate window? Then climb in and unlock the doors / bonnet from inside.

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Hello, my battery has become flat but when I came

find bonnet catch and while someone pushes down on bonnet, pull the cable from behind the release lever (normally a black plastic covered wire) either the cable has siezed or the outer cable has sliped out of its retaining plate, if cable has broke, then access from under car with long rod to push lever over, again someone lightly pushing on bonnet will make it eaiser

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Locked out of car

I took my 99 Laguna to my local mechanic with a stuck bonnet. He pulled the lever from inside and told me to press down on the bonnet at the same time then open the bonnet as normal with the outside catch. It worked ok. After doing it oil the catch mechanism and it now works ok-but best to keep trying it to stop it seizing again.

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