Part 2
Bmw x5 for zero rpm and 4x4 failure Inc the temperature gauge problems with previously diagnostics done on the K - line data-bus problems we were left with Can-Bus data network problems between module's on the gateway,
After testing the data bus for signal quality there was a signal noise on the gateway which will cause various problems between module's
Testing and checking end of gateway and resitance/serial bus over a few days to diagnose the problem was finally found under the rear seat...
Cutting a long story short it was the baby seat causing pressure on the wiring harness under the seat, causing the seat base to damage the Can-Bus loom Inc cutting another harness wire
4 wires out of hundreads of meters causing the problem on the same car the car was Fixed
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