Second question, do all the 3 series use the same MAF sensor including the diesels?
Petrol and diesel MAF's will almost certainly be different. However, I'm pretty sure the 520d any other 2.0d BMW from that vintage will share the same one.
Id be amazed, since the ECU will have no way of measuring the air entering the engine and so probably will not run at all, for more than a few seconds.
I doubt it.
It's a diagnostic procedure, recommended for both diesel and petrol engines, when trying to diagnose a faulty air flow meter.
Pulled them off both my toyota and BMW and neither car ran for more than a second after? More modern ones must be set up differently.
Depends entirely on the vehicle. A lot of vehicles will go into limp home mode if the MAF sensor is unplugged.
do i need a garage to determine if the MAF is faulty.
Not entirely sure on BMW's but on my VW I used a laptop and the vag-com software to log the maf readings . Is there any diagnostic software freely available for BMW's?
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