M30 ECU

[johnl320]

Having a small pile of ecu's on the shelf in the garage I have absolutely no Idea which one is for the M30. Lump and ecu came out of a E reg 735i auto. Can anyone help with this slight cock up on my behalf and supply the last three digits for the right one.

cheers

john

[oze30]

it should be the one with a yellow label.

I have 3 in the garage, 2 new and 1 old. H reg is yellow.. the other later models are red/brown?? (Colour blind!)

[johnl320]

One has deffo got a yellow label, I guess I'll try that one first

cheers mate

john

[Brianmoooore]

'87 was a changeover year, just to complicate things a little!
87-88 should be 0261200150
84-87 should be 0261200061

[bigdek]

possibly a 179 as well i think

[Brianmoooore]

possibly a 179 as well i think

179 is '89 on, and OP says 'E' reg, so I doubt it.

[johnl320]

Thanks fellas, I've got a 150 in the pile so that must be the one

john

[Speedtouch]

A 179 (Motronic 1.3) ECU can be used as a direct plug & play swop for the earlier 150 (Motronic 1.1) ECU I've discovered; the 179 is far easier to chip, being a single-PCB unit

[johnl320]

Any performance gains from using the newer ecu in standard form, smoothness, economy, power, etc?

john

[Speedtouch]

Yes, Motronic 1.3 has better resolution (more memory map locations), and is at least on my E34 535i, smoother running than the old Superchipped 150 ECU that I had (currently have the standard BMW chip in the 179 ECU, though I'll soon be trying a BBR chip)...

[johnl320]

thanks mate, I feel a scrap yard trolley dash coming on

john

[Speedtouch]

Cool. If you can't find one there, I've had a couple of 179's off E-bay for around £20 a throw.

[johnl320]