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starting without keys
Posted: Wed Feb 25, 2009 8:25 am
by vtecmike
hi ive seen a bmw 728i for sale that im interested in for its engine, the problem is the owner doesn t have the keys!
is there away of unlocking it and starting it ??
an info would be most apprieated, please help
thanks
Re: starting without keys
Posted: Wed Feb 25, 2009 8:51 am
by DanThe
Yes, take the V5 and registered keepers driving license to a BMW dealer and ask for a new key. Or change the ECU/EWS module for a set with a matching key and pull the Ig switch off the barrel
Posted: Wed Feb 25, 2009 9:31 am
by vtecmike
hi, thanks ,would it be possible to use the ecu and keys from a z3 2.8 as i have one ? or is that just a dumb question? cheers
Re:
Posted: Wed Feb 25, 2009 9:52 am
by Jhonno
you can use the ews module, ecu and key from your Z3 2.8 yes
Posted: Wed Feb 25, 2009 9:53 am
by jbh
vtecmike wrote:hi, thanks ,would it be possible to use the ecu and keys from a z3 2.8 as i have one ? or is that just a dumb question? cheers
yea i would say its a dumb one to ask... it wont work from your z3 easiest way as Dan has said go to the dealers or get the stuff from an identical car
Re:
Posted: Wed Feb 25, 2009 9:55 am
by jbh
edit that... i read it as a 735 origanaly
if the z3 and 728 are the same engine then yes it would work
Posted: Wed Feb 25, 2009 10:03 am
by vtecmike
sounds good whats the ews? where is it located? lots of questions i know but your the boyz with the knowledge!
cheers
Re:
Posted: Wed Feb 25, 2009 2:02 pm
by DanThe
Did the Z3's not get twin vanos at some stage? This and other differences need to be taken into consideration, crank sensor is also in a different location on the last of the M52's so this will stop the engine running right and put it into the default map. If your not sure buy a key
Re:
Posted: Wed Feb 25, 2009 2:03 pm
by Jhonno
I don't think the Z3's did Dan.. I might be wrong though..
Re:
Posted: Wed Feb 25, 2009 2:08 pm
by DanThe
I think they did....
Posted: Wed Feb 25, 2009 7:15 pm
by vtecmike
great
i think were back to the beginning again
Re:
Posted: Wed Feb 25, 2009 7:41 pm
by Brianmoooore
DanThe wrote:I think they did....
I'm sure they did - I've got the engine here from the one that supplied my torsen diff!
Re:
Posted: Wed Feb 25, 2009 7:43 pm
by Brianmoooore
Just do a leak down test on the engine. That should show up any serious problems.
Re:
Posted: Wed Feb 25, 2009 9:25 pm
by DanThe
Posted: Thu Feb 26, 2009 8:40 am
by vtecmike
hi thanks ,whats the ews module and where is it located normaly? cheers
Re:
Posted: Thu Feb 26, 2009 8:47 am
by DanThe
Its black, about the size of a large matchbox and will have either a yellow or purple plug depending on which version.
You need to be sure the engines/management systems are the same before swapping them, if you put the ECU into fault mode the fault can only be removed with diagnostic equipment
Re:
Posted: Thu Feb 26, 2009 8:51 am
by Brianmoooore
To get the engine to run, without recourse to sessions with diagnostic/programming equipment, you need a MATCHING key chip, ECU and EWS module, all from the same car.
Commonly known as a thief kit.