Dourios

Hello guys my car is going crazy !!
I’ve changed the generator/altenator and did check the cable from generator to dme and all the fuses and they are ok

Does anyone have any idea what can be the issue?
What should I check? Or change?

Btw sometime I have the error 28d7 dme can’t communicate with generator and the car misfires


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00932A ZGM/SGM-ZGM: BYTEFLIGHT communication error

S 0180 No communication possible with: Safety module/restraint system

S 0193 No communication possible with: Steering column switch center

S 0187 No communication possible with: Door module

S 0189 No communication possible with: Door module

S 0177 No communication possible with: Satellite vehicle center

S 0129 No communication possible with: Engine electronics or Diesel
Hybrid

S 0758 Permanent SAE error code (non-continuous) stored

00CE99 Message (steering wheel angle, 0x0C8) faulty, active steering receiver, SZL

S 0616 Programming aborted: Telephone control unit

00А3В3 Message (active roll stabilization, 0x0BE) faulty, receiver
KOMBI, ARS control unit

00A3A9 Message (steering column button signal, 0x1EE) faulty, receiver
KOMBI, SZL control unit

00A428 KBM: Windscreen wiper motor blocking protection

009C77 IHKA: Additional water pump

009C79 IHKA: Water valve control unit

009C7A IHKA: Right water valve

S 0172 No communication possible with: Control unit Satellite B-pillar

S 0174 No communication possible with: Satellite B-pillar right

donpb

How's your battery doing? Load test and charge cycle histogram are my go-to battery diagnostics.

seanjordan20

The first thing I would have checked was the MPM in the trunk. Should be where the spare tire is. Little grey/white box. Unplug it and see if there any corrosion on the connectors. Also look at it and see if there's any water damage. Next I would have check the battery and then grounds in the engine bay. Between all those you should find your issue

Dourios

I didn’t check the histogram or did any load test but for sure it doesn’t charge like it should already planned to get one on Monday

That’s the mpm the bay was clean from liquids today I will look the grounds on the engine bay

donpb

Battery charge histogram will tell you a lot. Then next, I go to the alternator test.

Dourios

I’ve changed the alternator with a new one from hella. what will this test show me ?

donpb

Charge cycle histogram shows how your battery has been charging over a few days.

Dourios

I did new battery registration and I don’t have now the histogram 😅 but battery voltage was 12.2 charging at idle was 13.9 I’ve had the car for almost 1 hour in use and the battery was at 12.4 I assuming that’s not normal

seanjordan20

Ooh you're off on voltage. You need to be around 14.7v. 13.9v is low especially on a reset. You're still having the same electrical issues?

Dourios

Only for Update it was the sgm Module now I’m left with some minor faults and I’m hoping I will be green again 🥳