Hi , my '87 325e's ECU (0 261 200 027)seems to be dying, sometimes it is difficult to start and idle slow , I know that the problem is the ECU because i've used a borrowed one and it started good, my question is how much will a new/fixed one be?.
I know that there are other code numbers for motronic boxes(more relaible) 153,154,173,Can I use those as a replacement?