seized bootlock and now cant get in to put a new battery in

[UKGEAR]

my battery went this morning and i got another for a c220d. now my prob is i always use the key to pop open the boot to get at the battery but as its out i cant get in. i called a mechanic who said put jump leads or onto the positive feed in the engin and 1 on for earth and that would give power to pop it open. being sunday i cant get help. can anyone help me and tell me where the positive power point is in the engin so i can get this boot lid open. the lock is seized so i just cant get in. thanks folks.

 

[jberks]

Not sure which your car is - C220?
In any case I imagine it's similar to my E. Under the bonnet, N/S wheel arch, Black box with red + on it - open the box and you will find a brass post inside - There is also nearby, another post - that serves as the -ve.

 

[guydewdney]

if you can get to it - starter motor?

fuse box and power up the 'wrong' side of a maxi fuse?

 

[reflexboy]

Use a Crowbar?

 

[UKGEAR]

checked the boxes and nothing. tried to put a jump lead on the wire going to the starter but still nothing or would u just stick the jump lead on the starter anywhere. also put the - one on the x member to earth

 

[jberks]

All,
What does it say in the manual regarding jump starting? - I don't think I ever did this on my C and the E has the posts in the front to connect to (though the battery is under the rear seat so a pain to get to). There must be a Merc approved way to do this as it's a pretty normal issue. I presume the boot lock is electric - I take it you have tried it.

 

[190]

You can get what is called an In car battery charger which connects to your cigar lighter to charge the battery why not get one of those to power your boot lock it?s just a lead which connects the two lighters together but don?t try and start the car its only for charging the battery.

 

[UKGEAR]

thanks guys still havent got there but my mechanic is coming round tnite. also a mate who knows lots about cars is coming round in a couple of hours.

 

[UKGEAR]

my mate came round and put the lead onto the starter and it worked. thanks guys. ill be sticking around here as the help i got was gr8. 4 thumbs up.