The D3 electrics are certainly a challenge.
There are so many different types of BMM, with the negative terminal in different places. I'd also need to try and get the newest one possible to try and avoid getting a used duff one, or a used one with the old firmware that would need updating.
One other possibility, yesterday before I aborted the current test due to low battery I was getting ready to disconnect the alarm siren. I had the siren unbolted, and it was laying face up with the power connection visible to disconnect for around 15mins. Since putting it all back together everything seems to have been fine.
I keep going round the same circle, battery, alarm siren, heater resistor, BMM. Could be any of these acting up.
This is the current BMM
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Manny
2004 A4 1.8T Sport Cabriolet, 89K Miles
Past
2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly
with retrofit AMI and DVB-T in place of Analogue
2003 Volvo S60 D5 SE Manual, 197K miles.
2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles
Last edited by mannyo; 13th October 2015 at 09:22 AM.
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