Strange power? related issue

KrisKrk

A6 C6 4F 2010 LeMans Avant
Had some problems with power after dash cam install last year.

Battery been replaced. Good
Alternator been replaced. Very good.
Car has been scanned for any gremlins. Just perfect

Nope ...

In the morning, unlocking the car will get the coming/leaving fog lights+number plate lights+interior lights on, untill second indicators unlocking blink and they go off.
Think only DRL's stay on.
You open the doors, interior lights come on but for shorter period than they used to.
Used to managed to strap in both kids in their car seats, now just one of them.
Shut ther doirs, open mines, interior on
I get in, shut the door, interior goes dark again.
Put the key in to the ignition, footwells and ambient light comes on, but it should stay on since car unlock.

Drive okay as only ambient light is on.

Stop, key out of ignition makes interior light and fogs as coming/leaving home lights on and stay on.
Locking the car from the fob gets interior lights out and fogs stay, till set time pass.
It does and they off.

Come back from work, 9 hours later and morning process repeats.

If I nip out for lunch and drive it (usually about 2pm, same as morning.
Leaving work 6:30pm after lunch drive and it is all ok.
Unlocking the car hold interior lights on with fogs. Opening the door outs the fogs and still keep interior and ambient on.
Key in ignition slowly dim and get the interior off to remain with ambient only.
Repeated short parking break after few minutes of drive will be ok and all lights behave as should.

It is like, the cpu forgets something. Does remember after a short drive, tho.

I'll repeat, car have been scanned several times before and after battery+alternator replacement.

Any ideas?

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Novica

Registered User
Central convenience module (address 46) is responsible for all theses lights. Check this module, perform tests which are available from VCDS. I remember that you mentioned some water leakage in trunk, check that this module is dry and connectors are free of rust. I think the module is placed in right side of trunk.

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KrisKrk

A6 C6 4F 2010 LeMans Avant
Central convenience module (address 46) is responsible for all theses lights. Check this module, perform tests which are available from VCDS. I remember that you mentioned some water leakage in trunk, check that this module is dry and connectors are free of rust. I think the module is placed in right side of trunk.

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Thank you, mate.

Is that module in the car jack compartment?
Will VCDS show any errors on it?
Guy scanned the car for me with regular SnapOn tool garages use. Not a cheap knockoff one from aliexpress but pretty looking and carried in the casing with foam

Water I have inside the tailgate.
Still not solved as weather is preventing me from sticking my nose out
Think it may be getting in from around the lamps sills.
Recently replaced them as second hand ones and that's when I started to get misting up signs of water ingress.
Maybe I should just het new ones

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Novica

Registered User
It is on side where is jack. VCDS should show any error if present but check visually as well

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KrisKrk

A6 C6 4F 2010 LeMans Avant
It is on side where is jack. VCDS should show any error if present but check visually as well

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No leaks in there and had no errors on scan.

Issue still persists

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CupraDine

Registered User
After installing my dash cam I had the same issue. The car thinks there is a parasitic draw so triggers the energy management, it usually records this in the gateway module.

After parking my car for a couple hours, my lights behave as yours do. If I switch the ignition on (don't start) I find Static current upper limit exceeded and Energy management active faults in the gateway. I can clear these and they will come back, except when I disable the parking mode on the cameras so they power off with the car.
 

KrisKrk

A6 C6 4F 2010 LeMans Avant
After installing my dash cam I had the same issue. The car thinks there is a parasitic draw so triggers the energy management, it usually records this in the gateway module.

After parking my car for a couple hours, my lights behave as yours do. If I switch the ignition on (don't start) I find Static current upper limit exceeded and Energy management active faults in the gateway. I can clear these and they will come back, except when I disable the parking mode on the cameras so they power off with the car.
Make sense as I've installed a dash cam with parking mode before the end of last year.
Need to get it scanned again with gateway also.

Thank you for the info

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Novica

Registered User
That is good point.

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