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Bosch 0265103041 ecu internal diagram manuals wanted. my bmw e30 325i abs ecu dont work

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My 1998 bmw 525i abs and engine light stays on and i dont know what to do? please help with any ideas?

may be you should to reset the ecu
so you can do it in a garage or you can do it by yourself
if you want to solve it by yourself you need a tool
and you can click here: ecu chip tuning tools

Nov 09, 2012 | 1998 BMW 5 Series

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Brake bleed procedure for 1994 bmw 540i with bosch 2 abs

The Bosch ABS 2 system can be bled in normal manner, starting from most distant wheel from master cylinder. In Bosch ABS 2, the solenoids open to relieve pressure and the pump pushes it back to the MC. So in conventional bleeding, only the recirculation leg's fluid is not replaced. To replace/flush the fluid in the recirc leg, you can either jumper the solenoid and pump relays while pressure bleeding (you'll need wiring schematic) or SAFELY engage ABS on a slippery road surface and then rebleed the entire system again.

Mar 21, 2012 | 1994 BMW 5 Series

1 Answer

My bmw e30,325i box shape doesn't spark at all,i just discovered that the negative terminal wire from the coil is not connected,and i still dont know where it should be it looks like it...

the negative terminal of the battery SHOULD NOT BE connected in the ignition coil. the negative terminal of the ignition coil is connected to the condenser in your distributor.

1. make sure that your spark plug is working. try using other sparkplugs to check.
2. check if your high tension wires are working
3. if numbers 1 and 2 are ok, then just replace your iginition coil.

Aug 12, 2011 | BMW 325 Cars & Trucks

3 Answers

My ABS light is on and I had it checked and they said it must be something with the control unit or module, but before the light came on the blazer sometimes acted like it was not going to stop, what could...

hmm ok this is a tough one.. Its more than likely one of two things..

1.) the abs sensor.. this will account for the light being on and it will also account for the brake not working propperly.. to verify this,, Locate and remove the abs fuse.. Its in the fuse panel under the hood.,, under the cover is a diagram with the fuse layout.. remove the abs fuse and drive with the vehicle.. If your brake works perfectly then you need to change the abs sensor,,

2.) the second is the bran box / the ECU (control unit) ,, to verify this you will need to have a diagnostic machine (code reader) connect to the module and detect all the fault codes.. This is not likely but very possible.. Verify the sensor first and then check the control unit..

Now take into consideration that is the abs is not working propperly and you remove the fuse ,, YOUR BRAKE WILL WORK!!!! just the abs system wont,, you can drive your car safely without the abs,, it will just like driving a car with no abs or before they invented it.. what the abs does is hold and release quickly so you dont get an abrupt stop,, with the abs you will stop quicker so it will take a bit getting used to so you wont step on the pedal hard,,

Apr 23, 2010 | 2000 Chevrolet Blazer

1 Answer

I have 2 Bmw's. The one 330i is manual and the other Automatic. My problem is the automatic 330i holds back on the power, really holds back on power. Sometimes it wants to perform and sometimes when you...

check for a wet ecu...
read below on the e36

the ecu compartment is under the windshield on the passenger side on E36

you gain acess to it under the hood....
this compartment gets wet, the ecu lays on a flat surface in that

the bottom side of the circuit board gets wet and starts corrosion.

remove the ecu, take the bottom plate off, clean the bottom of the circuit
board with alcohol and a soft tooth brush.

you should be able to see the signs of corrosion or conductive build up.

this gunk bridges solder points doing all sort s of wierd things to your
car, including false sensor readings from asc/abs controllers and other

all the way to engine failure and worst case burnt and shorted wiring

I'm on my 3rd ecu, took me and the repair boys a few years to figure this
one out.

BTW: i would get that ecu mounted above that flat surface, use some sort
of standoff to raise it so that it is not laying in the wet.

Dec 27, 2009 | 2001 BMW 330

1 Answer



Oct 14, 2008 | 1996 BMW 318

1 Answer

X5 abs trac controle and stabilety controle

Hello Steve

The problem is in the fuse box. The ABS Fuse needs replacing and while you are doing this make sure you check other fuses too, as the ABS fuse normally takes out other fuses but not always.

Hope this helps. Please don't forget to rate me.


Jul 07, 2008 | 2001 BMW 5 Series

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