i'm having some problems with getting my car started if anyone can help.
i purchased a salvage 120i sport a few months ago.
it was a non runner and needed a key. I was just going to order the key when i noticed that the cas unit had been removed and so i needed a key and cas unit (and was unsure about any faults in the DME) (so keys and Cas alone about 350+ for both bmw direct)
so instead i purchased an identical DME EWS CAS unit and key from a fella in Germany. all the part numbers match up identically and i was so lucky to get the lot for £250 (except that the ews slot is for LH drive - i can sort that out!)
at the moment, when i put the key in the idrive pops up and everything appears to work fine (windows, parking lights, alarm, nav stereo etc)
the problem is the car wont start, nothing happens when i press the start button apart from the idrive going up and down into the dash.
i drive comes up with 'head unit not coded properly'
a yellow sign stating ELV- move steering wheel- sometimes turns red but the steering does move okay.....
but all the stereo bottons on steering wheel work fine- they did not at first- but i cleared some errors using INPA and now they do)
i am so worried there is a major problem with the engine.
at first i thought it was the battery (apparently low voltage meant that the car wouldn't even bother firing)- but i put another cars battery in there and still no luck.
questions that i want to ask is that- is there any coding that is required before the car will try to fire up?
I'm new to these forums but if anyone is so kind to find me a solution that i can do and fix it myself i am willing to donate £30 to the forums
I've spent £100s sourcing parts for this car and taking it to a professional will mean it may stand me at more expensive than it would be to have bought it perfect.
I'm a student at uni and thought i'd find time to repair it and it would be cost effective to do (paying my own fees :( ....)
Any help will be much appreciated.