Greg5OH

Started with it being intermittent a handful of times, now it will not lock driver door period, and the alarm does not beep nor does it arm.
I can trigger the alarm with the remote and that works.

Will scan tomorrow, but wondering if someone had something similar happen?

ltooz_a6_a8_q7

My trunk was detected opened due to trunk soft close broken. Slammed it hard, locked and I could lock and arm the car
Check all doors make sure none of them sensed open ?
Cheers,
Louis

dvs_dave

Can you lock the door manually with the key?

+1 on it could be the trunk lid latch failing that's the root cause. Not sure where you're located (can't see on mobile interface), but it goes hand in hand with cold weather.

Or it's a bad lock solenoid or latch in the drivers door.

Shamoye Lewis

That's wierd Louis I don't have my softwa close button in for months now and it never caused me any problems, but I believe the op issue might be the locking actuator I'm the door, I has both lock solenoid and dornisha ajar switch in it, has to change mines year and half back because the ajar switch was defective only problem that was causing was that the system doesn't know when the driver door was open, next thing the OP can check is the harness that attach the door to the body, could be a broken wire in the loom..

97urS6

My guess (as I had a similar issue) is the there is a cracked or broken wire inside the door feeding the door handle mechanism. You need to take the door panel off (see one of my earlier posts that detail "how to" on that) and take a good look at each of the 3 connectors on the door handle mechanism.

tashakes

My wife's A4 had exact same issue with the passenger door, would not lock and would not set the alarm, either with the remote or the inside switch. Replaced the door module and all went back to normal, it was like $170 and a couple hours and beers to install.

Greg5OH

Thanks will take off the inner panel and take a look in there.
THe issue is totally intermittent so it appears to be a wiring issue.
This damn cold weather is wreaking havoc on everything.

Greg5OH

This was my code btw:

Address 42: Door Elect, Driver Labels: 4E1-910-802-42.lbl
Control Module Part Number: 4E1 910 802 B HW: 4E1 959 801 F
Component and/or Version: Türsteuer.FS BRM005 0180
Software Coding: 0028204
Work Shop Code: WSC 02313 785 00200
VCID: 204F2302F3DFC6429C-8074
1 Fault Found:

02115 - Locking Unit for Central Locking
008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 2
Fault Frequency: 8
Reset counter: 54
Mileage: 134736 km
Time Indication: 0
Date: 2016.12.18
Time: 02:37:08

Greg5OH

Do you shoe seems to be getting worse. twice today it didn't even unlock the driver door had to manually open with the key.
going to look up some YouTube videos on how to remove the door card

Shark_V8

Ageing electronics or actuation motor.

I am getting these codes too on one door. Not sure about re/re.

I did replace one door/window control module with a good used from a newer car and it's hands down the best operating window of the four. Was pretty easy to do too.