Junior Member, warming up (<31 posts)
Join Date: Nov 2016
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So I replaced the SMG pump motor and I'm still having the same issue ,I can't hear the motor when I open the car or when I'm trying to bleed the transmission. therefore no pressure, no light on the gear shifter and car just won't start,.
Here are the codes I'm having:
4F40: SMG: Hydraulic unit, Undershooting of pressure range
4F42 : SMG Hyd ctrl unit; activation frequency, pressure build up
4F43: SMG Hyd unit: ON period
A39A: VM control unit internal fault
D35D: DSC - No Message (LDM 419)
D357: DSC - No Message (Gearbox 186)
I already changed:
- the battery (I did the ISTA registration)
- the PLDC sensor
- both smg pump relays
- and now the smg motor.
Any idea where the issue could come from? Or what I can test?