Weird issue with driver door locking after x minutes

Shira

Registered User
Hi, 2008 8P1 hatchback, since a few days I have a weird issue with the locking of my driver door, whenever I come back to the car and unlock with the remote key, all doors unlock except for the driver one. If I use the key physically it works just fine. So I tried locking/unlocking a few times.. it works perfectly every time, but if I lock it and wait for a few minutes.. same issue, it won't unlock.

Any ideas?
 

Chris-P

Audi Owner 2011-2019
Check the wiring inside the door shuts as a first port of call :)

It's a common fault. Have a search on here.
 

Shira

Registered User
inside the door shuts

sorry, what do you mean? the thing is after unlocking with the physical key, it works every time, then fails again only if I wait a few minutes, as if something activates after x time
 
Last edited:

ab1702

Registered User
The door lock mechanisms have a habit of sticking on these cars so that may need replacing. If you do a search you’ll find plenty of other threads with similar problems
 

abmat

Well-Known Member
VCDS Map User
Door lock mechanism for sure.
Same issue on my A6. Only happens if it’s wet, clears if I open the door from the inside for the rest of the day. Doesn’t happen if it’s a dry day.
 

Shira

Registered User
I noticed also the central lock with the button inside the car does not lock the driver's anymore (but it still works with the fob)
I guess this is the part I need to replace? (attached pics)

Thanks

c703d9ce-2a90-4a48-b48c-1790e7573eb5.jpg

7c973890-53d0-461b-b623-89b3f67bae67.jpg
 

Retroman

Audi A3 2010 Sportback 2.0 TDI 170 (CBBB engine)
This era of door lock modules are a known problem across the whole VAG range. The micro switches start to stick and "misbehave". I've replaced my driver's door and rear left - both now work perfectly.

There are plenty (with guarantees) on ebay for around £30 - £35. The driver's door is probably the trickiest as there is a tab which links the keyhole and module as well as the internal handle cable and external handle bar.
 

Chris-P

Audi Owner 2011-2019
This trick worked when my passenger side door was a bit temperamental:

 

Shira

Registered User
I finally changed it yesterday, 30 euro part from Amazon, chinese I guess, it seemed to be working perfectly but then today it suddenly started showing me in the display as if the door was not closed, and then the fob open/close never worked again. If I lock the door with the key it does work and then it doesn't show the door as open, but after I unlock it, same thing.

upload_2020-10-22_14-8-20.png
 

nluk100

Registered User
Never buy chinese copy parts. They are just not made to the same standard as oem. Better to buy a genuine used part with a guarantee than a new chinese part imo.
 

Shira

Registered User
Yeah but ~OEM costs 400% more :< weirdly enough though.. it started working again :blink: in the meantime I'm trying to repair the original part. Both motors seem to be working fine.

bHCaefo.png
 

Shira

Registered User
I've used these in my car - no problems.
Let's be honest, the OEM ones in this generation (8p) of car are rubbish and start failing after 4 to 5 years as mine did.
https://www.ebay.co.uk/itm/FRONT-RIGHT-DOOR-LOCK-ACTUATOR-MECHANISM-FOR-AUDI-A3-8P-A6-C6-A8-4E/253389999023?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

That looks very similar to the one I bought in Amazon, by ASIN code it should be this one in the UK site:
https://www.amazon.co.uk/Door-Lock-Front-4F1837015-4F1837015E/dp/B07MW5CLB4]

I had to swap this piece for the original's cause the metal rod wouldn't fit otherwise:

FpMtHif.png


btw is it supposed to be so hard to swap? it was a pain in the *** to insert the door handle contact that goes inside the yellow cap:

Vc6MLXO.png


The other non-OEM (I guess?) part I was considering was this one, almost 5x the price, but it seems to be for newer editions with the safety mechanism that won't let you open the door while the engine is on (my 2008 8P1 doesn't have that luckily)

dbLnR5Y.png
 

Retroman

Audi A3 2010 Sportback 2.0 TDI 170 (CBBB engine)
The OE ones I removed from my car were stamped (Audi/VW/Skoda/Seat) and were made by a company called "INTIER". As with yourself, the clamp to attach to the handle rod was slightly too small and so I used the original ones. As you say, the driver's door is probably the hardest as you have to insert the tab on the back of the key mechanism vertically into the slot on the lock mechanism.
 
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