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Old 4th October 2016, 01:03 PM
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Default Replacing Keyless entry door handle sensor

Like the D3, C6, 4L Q7 and probably others, the keyless entry / lock system seems to fail as a matter of course.

However, Audi have finally recognised this and helped a little by making the electrical parts separate to the cosmetic handle itself.

So, no more painting a whole new handle. Instead, it is now an electrical insert into the original handle, and with a little skill can be swapped in sub 20 mins.

Note, its the same part number (4G8 927 753 B) for all 4 doors, which makes its it even easier. Available from a8parts here:

http://www.ebay.co.uk/itm/Audi-A8-D4...i:131959559641

Firstly, lets assume you've used vagcom to identify the faulty door handle. 9 times out of 10 its the drivers door, as is mine.

Second job, remove the rubber bung that is covering up the screw we need:




Under here is a Torx 20. You need to screw it all the way out until it comes to a stop, anti clockwise.



Now, this gets a bit more interesting. You have to hold the handle out a little way and push the torx screw in. This pushes a mechanism inside the handle that locks the handle in this position. If you get it wrong and the handle doesn't lock out, use a set of needle nose pliers to pull the torx screw out and try again.



At this point, the mechanism that you pushed in to lock the handle ajar, has also released the key part of the handle and it will now come out easily. Take it easy as it has an extension on it for operating the lock:



Locking part out:



Now, the main part of the handle will slide back a few mm and lift out very easily. Feed it carefully out through the front hole noting its shape in the photos below. Disconnect the two cables carefully and it is free.



See below for the inserts. The newer one is visibly cleaner and a different (improved?) design.



Unfortunately, my photos dry up here. Getting the insert out is a fairly straightforward case of unclipping the cables (1 for keyless, 1 for handle illumination if fitted) and then carefully removing the plastic insert from around the handle where the cables come out, and the lighting is.

Looking at the photo above, the insert would pull out to the left, pulling the cable through the length of the handle before emerging.

Refitting is very much the reverse:

After inserting the new sensor into the handle, and securing the cables back into place connect the two cables back up and feed it slowly back into the front most hole in the door where it came from. Insert the rear part of the handle in, and slide the whole handle forward a couple of mm again so it is back in place. Remember that it is still locked out ajar so shouldn't sit flush at this stage.

Carefully offer the key lock part of the handle back in, ensuring the locking pin engages. This should be sat flush.

Screw clockwise the Torx 20 bolt back in until it stops. This will secure the keylock and release the main handle to sit flush with the door again.

Test the door lock works before shutting the door, just in case

When all looking good, pop the rubber grommet back on, shut the door and lock it keylessly. Stand back and smile smugly.

Probably worth clearing any error codes in vagcom too, but won't stop it working
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2001 D2 4.2 QS Silver,
1997 D2 S8 Silver,
1999 D2 4.2 Silver,
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2003 D3 4.2 Ming Blue,
2005 B7 S4 Blue,
2006 D3 3.0 Tdi Black,
1999 D2 4.2 Silver,
2003 D3 4.2 LPG Crystal Blue,
2000 D2 S8 Silver,
2007 3.0 Tdi Q7 Black,
2009 B8 S4 Black,
1998 D2 S8 Agate Grey,
2006 D3 4.2 Tdi Blue,
2006 D3 S8,
2007 Q7 3.0 Tdi,
2006 C6 S6,

The Second 20 Audis:

2011 A7 Sline,
2001 A2 1.4 Tdi Black,
2002 A2 1.4 Tdi Silver,
2006 A8 4.2 Tdi Blue,
2007 4.2 Tdi Q7,
2006 S4 Cab Silver,
2010 RS6 Saloon Black ,
2007 TT Roadster,
2010 A8 D4 4.2 Silver,
2006 C6 A6 2.7 Tdi Quattro,
2000 D2 4.2 QS/S8 Ming Blue (again),
2008 Q7 4.2 Black,
2009 C6 RS6 Saloon Daytona Grey,
2001 Fully Loaded A2 Tdi,
2006 Avant S6 Black,
2007 VW Caravelle Exec Black (almost an Audi)
2009 TT Roadster Daytona,
2015 Q7 4.2 tdi lava grey,
2002 GmbH D2 demonstrator,
2006 D3 A8 LWB 4.2 Tdi Black
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  #2  
Old 5th October 2016, 10:45 PM
Johnmed Johnmed is offline
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Nice work Ian. Always great to do a job when you've seen how it's been done prior.

My NSR is inoperative (D3) and I just live with it. At least with the D4 the process seems a whole lot simpler and logical.
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  #3  
Old 6th October 2016, 07:10 PM
Joe2.0E Joe2.0E is offline
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Great write up, I'm sure we'll all get to use it at some point if they fail as often as the type fitted to the D3's. The part seems pricey though at 119.
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  #4  
Old 7th October 2016, 07:40 AM
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Quote:
Originally Posted by Joe2.0E View Post
The part seems pricey though at 119.
Seems like a bargain to me. For a new D3 handle, painted and fitted you were looking at the best part of 300......
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For parts enquiries and Forum User Administration please contact customer services directly, not me - enquiry@a8parts.co.uk, www.a8parts.co.uk, or call 01642 783537

His Daily - 2016 S5 coupe ex press demo. Daytona Grey. Adaptive Cruise Control, Side Assist, Lane Assist, Flat bottom steering wheel, 360 Degree Cameras, Park Assist, Matrix headlights with sweeping indicators, Dynamic steering, Dynamic Suspension, Sports diff, Cockpit display, Privacy glass, Storage pack, Advance key, Phone box, Folding mirrors, Multicolour interior light pack, Carbon inlays, Bang and Olufsen, Audi connect, Traffic jam assist, Traffic sign recognition, Heads up display... What a machine.....

Her Daily - 2007 Q7 4.2 FSi, Muguello Blue with ABT bodykit and 22" Alloys, Adaptive Cruise, Bose, Xenons, Privacy glass, extended leather, 6 seats, Reversing camera, keyless, memory seats, electric steering column, auto boot, auto dim mirrors, Heated front and rear seats, full black leather

The First 20 Audis:

2001 D2 4.2 QS Silver,
1997 D2 S8 Silver,
1999 D2 4.2 Silver,
2002 D2 S8 Dolphin Grey,
2003 C5 RS6 Blue,
1998 D2 S8 Black,
2000 D2 4.2 QS/S8 Ming Blue,
2003 D3 4.2 Ming Blue,
2005 B7 S4 Blue,
2006 D3 3.0 Tdi Black,
1999 D2 4.2 Silver,
2003 D3 4.2 LPG Crystal Blue,
2000 D2 S8 Silver,
2007 3.0 Tdi Q7 Black,
2009 B8 S4 Black,
1998 D2 S8 Agate Grey,
2006 D3 4.2 Tdi Blue,
2006 D3 S8,
2007 Q7 3.0 Tdi,
2006 C6 S6,

The Second 20 Audis:

2011 A7 Sline,
2001 A2 1.4 Tdi Black,
2002 A2 1.4 Tdi Silver,
2006 A8 4.2 Tdi Blue,
2007 4.2 Tdi Q7,
2006 S4 Cab Silver,
2010 RS6 Saloon Black ,
2007 TT Roadster,
2010 A8 D4 4.2 Silver,
2006 C6 A6 2.7 Tdi Quattro,
2000 D2 4.2 QS/S8 Ming Blue (again),
2008 Q7 4.2 Black,
2009 C6 RS6 Saloon Daytona Grey,
2001 Fully Loaded A2 Tdi,
2006 Avant S6 Black,
2007 VW Caravelle Exec Black (almost an Audi)
2009 TT Roadster Daytona,
2015 Q7 4.2 tdi lava grey,
2002 GmbH D2 demonstrator,
2006 D3 A8 LWB 4.2 Tdi Black
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  #5  
Old 7th October 2016, 03:43 PM
mondie mondie is offline
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Thanks, this is a fantastic post. Our D4's drivers door sensor has failed too, now I just need to decide if I have the nads to tackle this job myself
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  #6  
Old 4th December 2016, 02:08 PM
mondie mondie is offline
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Anybody know if I can buy one of these OEM sensor replacements and install it myself without needing to reset the ECU?

Thanks Simon

http://www.ebay.co.uk/itm/OEM-Exteri...3D131959559641

http://www.ebay.co.uk/itm/Exterior-D...3D131959559641
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  #7  
Old 4th December 2016, 07:51 PM
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Adrian E Adrian E is offline
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As long as they're the right part number then no problem - they're clearly straight from the Chinese factory at that price, but if they're all marked up with Audi logos on arrival then almost certainly the same thing minus the box! Plenty of people use them OK.

No coding involved to fit - IT just suggesting clearing any hangover logged faults from a dead sensor
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  #8  
Old 4th December 2016, 08:32 PM
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In my case, the keyless didn't operate again until I cleared the faults from the memory.

If you replace the handle, there may be a very small chance it might right itself, but its rather unsatisfying to wait on the off chance
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For parts enquiries and Forum User Administration please contact customer services directly, not me - enquiry@a8parts.co.uk, www.a8parts.co.uk, or call 01642 783537

His Daily - 2016 S5 coupe ex press demo. Daytona Grey. Adaptive Cruise Control, Side Assist, Lane Assist, Flat bottom steering wheel, 360 Degree Cameras, Park Assist, Matrix headlights with sweeping indicators, Dynamic steering, Dynamic Suspension, Sports diff, Cockpit display, Privacy glass, Storage pack, Advance key, Phone box, Folding mirrors, Multicolour interior light pack, Carbon inlays, Bang and Olufsen, Audi connect, Traffic jam assist, Traffic sign recognition, Heads up display... What a machine.....

Her Daily - 2007 Q7 4.2 FSi, Muguello Blue with ABT bodykit and 22" Alloys, Adaptive Cruise, Bose, Xenons, Privacy glass, extended leather, 6 seats, Reversing camera, keyless, memory seats, electric steering column, auto boot, auto dim mirrors, Heated front and rear seats, full black leather

The First 20 Audis:

2001 D2 4.2 QS Silver,
1997 D2 S8 Silver,
1999 D2 4.2 Silver,
2002 D2 S8 Dolphin Grey,
2003 C5 RS6 Blue,
1998 D2 S8 Black,
2000 D2 4.2 QS/S8 Ming Blue,
2003 D3 4.2 Ming Blue,
2005 B7 S4 Blue,
2006 D3 3.0 Tdi Black,
1999 D2 4.2 Silver,
2003 D3 4.2 LPG Crystal Blue,
2000 D2 S8 Silver,
2007 3.0 Tdi Q7 Black,
2009 B8 S4 Black,
1998 D2 S8 Agate Grey,
2006 D3 4.2 Tdi Blue,
2006 D3 S8,
2007 Q7 3.0 Tdi,
2006 C6 S6,

The Second 20 Audis:

2011 A7 Sline,
2001 A2 1.4 Tdi Black,
2002 A2 1.4 Tdi Silver,
2006 A8 4.2 Tdi Blue,
2007 4.2 Tdi Q7,
2006 S4 Cab Silver,
2010 RS6 Saloon Black ,
2007 TT Roadster,
2010 A8 D4 4.2 Silver,
2006 C6 A6 2.7 Tdi Quattro,
2000 D2 4.2 QS/S8 Ming Blue (again),
2008 Q7 4.2 Black,
2009 C6 RS6 Saloon Daytona Grey,
2001 Fully Loaded A2 Tdi,
2006 Avant S6 Black,
2007 VW Caravelle Exec Black (almost an Audi)
2009 TT Roadster Daytona,
2015 Q7 4.2 tdi lava grey,
2002 GmbH D2 demonstrator,
2006 D3 A8 LWB 4.2 Tdi Black
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  #9  
Old 9th December 2016, 11:01 AM
mondie mondie is offline
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Thanks for the confirmation, I will go ahead and order one and try my luck.

Cheers
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  #10  
Old 3rd January 2017, 12:40 PM
paulrstaylor paulrstaylor is offline
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How did you get on with this Mondie?

I've ordered two form China last week - not much risk at 9 each but still keeping fingers crossed
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