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Old Mar 24th, 2014, 10:17 PM
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Won't start after crash

We need a bit of help if possible, we bought a 2003 Mini Cooper S, that had been in a crash, ( husband is a panel beater and paint sprayer) all bodywork is now done, and lots of new parts on the engine, Mountings, coil pack etc. Today is the first ,time we've tried to start it and it turns over but there is no spark, we can hear the fuel pump working.

We have not replaced the ECU, which after looking through some of the forums will need doing, I am also assuming that the fuel cut off has been activated and I THINK this is in the ECU, which I also THINK is under the carpet near the handbrake.

Does anyone have any advice ? Thank you ( from the lady that would like the Mini to run having waited years to get one )
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Old Mar 24th, 2014, 11:36 PM
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Hi ya

Did the car run before the work was carried out ?
Did the airbags deploy ?
Do you have any warning lights up after it does it's self test ?

Is the battery fully charged and does everything else seem to work ?

Ecu is in the engine bay and the body control unit it under the trim panel drivers foot well.
Normal the only thing that is buy the handbrake is a sensor for the stability control on some cars and the mrs control module which is for the airbags.
On the early cars there was an inertia switch but that was before 2003 I think anyway it is corner of the engine bay near the bonnet hinge passengers side.

If you have a diagnostic machine run a check on it see what's happening it may just need a airbag reset

Have you checked all your fuses and relays in the car and in the engine bay

Hope this helps
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Old Mar 25th, 2014, 12:54 PM
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the car drove up to the accident and then we bought it with the engine pushed right back, engine mountings broken off, stuck in gear etc.

Yes airbags in steering wheel and dash deployed and now have new ones.

Batter is fully charged and all other things appear to be working.

I thought the ECU for the 2003 is under the carpet, it is definitely NOT in the engine bay unless we just can't see it and after a lot of research on one forum they said it's next to the handbrake but have not lifted the carpet there yet.

Along with airbag thing and fuel cut off..

We don't have a diagnostic machine at our unit and cant move the car so maybe going to have to locate someone that does, thanks for your info so far.
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Old Mar 25th, 2014, 03:17 PM
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Sounds like it had a very serious crash, Cat C rebuild is it, and was it worth doing if it was that badly damaged? if the engine has been pushed right back into the bulkhead I mean, do you feel safe driving it knowing its been like that?
Has it been on the jig to check its all correct and in alignment, the body?
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Old Mar 25th, 2014, 03:57 PM
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Quote: Originally Posted by Mischelle (original)
the car drove up to the accident and then we bought it with the engine pushed right back, engine mountings broken off, stuck in gear etc.

Yes airbags in steering wheel and dash deployed and now have new ones.

Batter is fully charged and all other things appear to be working.

I thought the ECU for the 2003 is under the carpet, it is definitely NOT in the engine bay unless we just can't see it and after a lot of research on one forum they said it's next to the handbrake but have not lifted the carpet there yet.

Along with airbag thing and fuel cut off..

We don't have a diagnostic machine at our unit and cant move the car so maybe going to have to locate someone that does, thanks for your info so far.

Hi

Unless you MCS is very different to mine your ecu (engine control unit) is in the engine bay between the fuse box and the airbox. Your bc1 (body control unit) is behind the trim in The drivers foot well. The MRS control box is by the hand brake under the trim
If it has had that bad a crash you will need to run a full diagnostic on it. Using the bmw or auto logic software and reset the system or it will not let you start the car

You will need to check all the srs/mrs system out before you try to reset it.
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Old Mar 25th, 2014, 06:55 PM
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firstly it wasn't that bad of a smash, no other part of the car was damaged other than the engine compartment, and yes it has been on the jig and aligned, my husband is a panel beater and paint sprayer by trade and its the only thing he's done for 30 years. It isn't a cat C as it was not recorded, the guy had, had the car from new and couldn't afford to repair it or claim on his insurance. yes it was worth doing as we have only paid for parts as my husbands time is free.

Yes I will feel safe driving it, as my husband is a perfectionist and it's had everything new that it's needed, and if anything is now a stronger, better car

Marque :

Unless you MCS is very different to mine your ecu (engine control unit) is in the engine bay between the fuse box and the airbox. Your bc1 (body control unit) is behind the trim in The drivers foot well. The MRS control box is by the hand brake under the trim
If it has had that bad a crash you will need to run a full diagnostic on it. Using the bmw or auto logic software and reset the system or it will not let you start the car

You will need to check all the srs/mrs system out before you try to reset it

Re all of that, right yep I'm at home and he's at our unit and hes just looked and all is exactly where you said, I think we just don't know the terms for things.
What does each thing do ? ECU, BCU and MRS ? We have a mechanic friend from the Main Dealer where my husband works who is going to come have a look too, Thank you so much for your help so far
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Old Mar 25th, 2014, 07:19 PM
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Ok I can see what youre saying and your husband knows what hes doing fair enough, ok no problem there.
But it is a bad crash if its pushed the engine back and broken its mountings and set off the air bags, you could hardly call it a nudge.
I was only saying, and if youre happy driving it then fine, its just when its past onto the next person after you, they might not find out about the accident if its not recorded and I for one would definitely want to know, even if its had the perfect 100% repair, I would be put off by it, only my opinion and I know not everyone will agree.


Could be the reason it wont start, theres more happened to it than first meets the eye.

Also you say you've now created a stronger car, and that again is not correct, if its stronger it will not deform as intended in the event of another accident, you cant beef it up, doing so may cause persons in the car in an accident to suffer greater injury than they might otherwise do if the car was to fold up and absorb the impact as its designed to do, if its stronger it won't work.
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Old Mar 25th, 2014, 09:11 PM
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It wont be sold it is for me until it dies so its not relevant, I wanted help to get it running, I don't really want people slagging off the car but thanks
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