starting without keys

[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

[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

[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

[Jhonno]

you can use the ews module, ecu and key from your Z3 2.8 yes

[jbh]

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

[jbh]

edit that... i read it as a 735 origanaly if the z3 and 728 are the same engine then yes it would work

[vtecmike]

sounds good whats the ews? where is it located? lots of questions i know but your the boyz with the knowledge! cheers

[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

[Jhonno]

I don't think the Z3's did Dan.. I might be wrong though..

[DanThe]

I think they did....

[vtecmike]

great i think were back to the beginning again

[Brianmoooore]

I think they did....

I'm sure they did - I've got the engine here from the one that supplied my torsen diff!

[Brianmoooore]

Just do a leak down test on the engine. That should show up any serious problems.

[DanThe]

Fact - http://www.realoem.com/bmw/showparts.do ... g=11&fg=15

[vtecmike]

hi thanks ,whats the ews module and where is it located normaly? cheers

[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

[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.