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ZGW replacement
03-08-2019, 00:06 AM,
Post: #1
ZGW replacement
Received a replacement ZGW 2 high this week for the swap and found some time to install the other day. Also took a moment to run the CAN-3 high/Low lines for future headlight modules while working in the footwell area. Pictures below

Running into a new tissue with the replacement ZGW. I connected it and completed 1 or 2 general "lesen" tests in Tool32 before the connection to the module stopped and wouldn't re-establish. Power cycling the ignition, locking the car and letting it go to sleep, removing and reinstalling the ZGW, pulling the battery for an hour doesn't bring back a connection. This is confirmed on Tool32, Esys, and ISTA+. For the hack of I broke out my old K-DCAN cable to see and still nothing.

With the ignition on, the windshield wipers come on as if there is no ZGW installed. Anyone have experience with this when swapping a ZGW? 

These replacements are fairly straightforward with the most work being flashing and VO coding with the correct Vin. Seems like this car continually has bad luck. The Part comes from a 2012 550i


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03-08-2019, 01:00 AM,
Post: #2
RE: ZGW replacement
Hah , had it with my , old one had ethernet problem , couldnt run , changed for used and same , bought new one all good .... I think its hard to get pre lci ZGM with same numbers
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03-08-2019, 02:22 AM, (This post was last modified: 03-08-2019, 02:40 AM by bmwtechnophobe.)
Post: #3
RE: ZGW replacement
Yeah, the original ZGW has ethernet / BUS issues which prompts the change. Opting for the Pre-LCI module because of the MOST connector to power CIC. I wonder if failing ethernet & BUS is a common occurrence in these modules?

Running a few more voltage tests with my multi-meter and then swapped in the original (malfunctioning) ZGW. The power in the car is good. I'm starting to believe someone shipped a broken part
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03-08-2019, 06:26 AM,
Post: #4
RE: ZGW replacement
Zgw2 mid or high do not have can3 as far as i know

Coding E + F Modelles in near from Graz, Austria
Navigation map updates
I-Step update
CIC, NBT, NBT EVO Retrofit and remote coding

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03-08-2019, 07:11 AM,
Post: #5
RE: ZGW replacement
So I was not wrong after allsmile

https://cartechnology.co.uk/showthread.php?tid=54305
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03-08-2019, 14:29 PM,
Post: #6
RE: ZGW replacement
(03-08-2019, 06:26 AM)BimmerSLO Wrote:  Zgw2 mid or high do not have can3 as far as i know

Is this through personal experience?
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