Hello I need advice please.

i have a 2012 BMW X3 xdrive 28i wagon since this morning my car does not start it just makes a faint wining like noise and nothing . I’ve connected my  “ FIXD” scanner thing and it’s showing me a trouble code P12BA , so can anyone help me with this.

Morning Skevos

P12BA is a Generic code which points towards the inlet manifold, so check carefully for any air leaks split hoses and gaskets. It could be the pressure sensor or MAF. A scan with a BMW capable diagnostic program would tell much more.

Take a look at www.realoem.com put the last 7 digits of your Vin into the search box it should bring up your Model then search the engine section. There are small exploded drawings that will help identify parts and where they are.

Dave

Thank you so much Graydog

I mean Dave 

On 2/21/2023 at 3:11 AM, Greydog said:

Morning Skevos

P12BA is a Generic code which points towards the inlet manifold, so check carefully for any air leaks split hoses and gaskets. It could be the pressure sensor or MAF. A scan with a BMW capable diagnostic program would tell much more.

Take a look at www.realoem.com put the last 7 digits of your Vin into the search box it should bring up your Model then search the engine section. There are small exploded drawings that will help identify parts and where they are.

Dave

Thanks Dave yes I when I wrote the post I had someone replace the plugs and coils, the starter the crankshaft sensor the other something sensor that’s by there and the manifold gaskets and when he put it back together I started the car and now I get codes

PO 727

and

PO370

so can you help me with that Dave.

 

Just now, Steven 63 said:

Thanks Dave yes I when I wrote the post I had someone replace the plugs and coils, the starter the crankshaft sensor the other something sensor that’s by there and the manifold gaskets and when he put it back together I started the car and now I get codes

PO 727

and

PO370

so can you help me with that Dave.

 

Oh and I replaced the “map” sensor as well.

2 minutes ago, Steven 63 said:

Thanks Dave yes I when I wrote the post I had someone replace the plugs and coils, the starter the crankshaft sensor the other something sensor that’s by there and the manifold gaskets and when he put it back together I started the car and now I get codes

PO 727

and

PO370

so can you help me with that Dave.

 

By the way I haven’t driven my car since

that sucks royally lol.

Oh man what else will go wrong I started my car just now to take it around the block just to see how it drives and on top of all my previous article issues. The warning center now says “powertrain” and that the  “clutch is too hot” 

Morning Skevos

First action is disconnect the Battery while it is disconnected make sure it is fully charged and holding the charge, Do not reconnect the Battery with the charger attached. If you charge the Battery with it in the car only ever do it from the charging posts under the bonnet.

A low or discharged Battery will throw all sorts of spurious codes. Disconnecting the Battery should clear all stored codes,

All the codes reported are Generic codes you really need either BMW capable Reader or a Mechanic or Garage that has one (it really makes a difference) Both the codes you report indicate a timing/sensor issue either an open circuit (or unplugged) sensor back track over all work done checking correct installation and connections. 

I suspect the latest Faults are all related and magnified by a Low Battery voltage

Dave

Ok I’ll disconnect the battery and give it good charge . As far as the timing sensors I’ll need help locating those lol

Morning Skevos

Check www.realoem.com put the last 7 digits of your Vin into the Search box it will bring up your model then look in the engine sections for the sensors. It will give a small exploded drawing showing where things fit and how, plus you will get the correct part numbers for getting replacements.

Also worth looking at www.pelicanparts.com they have some great "How Too's" with pictures

Good Luck 

Dave