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Thread: Installation of Door Warning Lights for Mk2 Tiguan (DIY)

  1. #1
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    Installation of Door Warning Lights for Mk2 Tiguan (DIY)

    I recently installed a set of 4 door warning lights on my 2017 Tiguan Sportline (Highline). It was a little different to some of the other write-ups I've seen so will post here so it may help others looking to do this mod in the future.

    This is the kit that I bought which included wires, housings and LED globes: RWSYPL LED Car Door Warning Light + Cable Plug Harness For VW Jetta MK5 Golf 5 6 7 Passat B6 B7 Tiguan Superb EOS CC 3AD 947 411|Signal Lamp| - AliExpress

    The lights in this kit are OK, however the wires for the front doors are too short. I'm not sure if other kits have longer wires but I needed to add some extra length to these to fit well (have some slack so that you can undo the plugs when removing the door trims). Also be mindful that the wires in this kit have 2 different types of pin connectors on the ends. You'll need to make sure you use the correct one on the rear doors where you need to install one of the pins into the connector. Probably not a bad idea to start with the rear doors and/or if you chop off the pins leave a "tail" on it so you can use them later if required.




    Front doors:

    First you need to undo 3 bolts holding on the door trims. There's one M30 torx in the middle of the door and one underneath the door handle cover. Remove the cover with a pry tool. There's a small recess at the rear of the handle to start the pry tool. Also one plastic 10mm "wing nut" at the bottom of the door. Get a 10mm spanner and turn it 90 degrees so the tabs are vertical and no longer locking the trim in place.










    Get a trim removal tool behind the door cover and pry the door trim off the clips holding it on. Once the clips are undone, lift up off the top of the door/seating near the glass and carefully undo all the connectors between the door and door trim.




    Remove the quad-lock connector from the front door controller module. Remove the blue housing from the outside of the connector to access the wires inside. You may have to cut off a zip tie from around the end first (if there's one on there).





    Next you want to connect the wires for your door warning lights into the wiring that is already in the harness. Pin 5 = ground/brown wire, Pin 16 = +12V / red wire. There's a number of different ways to do this but I soldered these rather than using connectors. I also had to extend the wires that were supplied in the kit around 15-20cm to give some "slack" and allow me to route the wires along the other existing wiring harness. Make sure you tape up any bare wires/connections and then put the connector back together.








    Put the door back together, leaving the cable out the hole for the door warning light. Lastly install the light and test. You may want to test the light first before putting the door car back on fully just to make sure it is operating correctly. Given that you're cutting into existing wires you likely won't need to do any coding here. If it doesn't work try turning the ignition on as one time I needed to do this as I think I disconnected some of the door wiring before the car switched "off" and the door control module got it's knickers in a knot.


    Rear doors:

    This is where there's quite a difference to some of the other write-ups as many of the other write-ups online indicate that there is no rear door controller module and you need to cut into some of the other wires and use them as an alternative signal to run the door warning lights. As it turns out the Tiguan (Highline model at least) has rear door controller module fitted so you can instead wire the lights up directly to the module and enable using VCDS/OBD11.

    Rear door trim removal is similar to the front door, however the tricky thing is the 10mm "wing nut" is hidden underneath the "reflector".




    Connections are Pin 12 for +12V (red wire) and Pin 13 for GND (brown wire). You will need to use one of the pinned wires to fit into the connector (pin 12) as pin 13 (GND) already has a wire in it that you'll need to splice into.














    When fitting the light into the door you'll need to modify the plastic moulding to allow the rear of the light and connector to fit.






    Install ctd next post....
    Last edited by tigger73; 30-08-2020 at 09:38 PM.

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



  2. #2
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    Installation of Door Warning Lights for Mk2 Tiguan (DIY)

    And last is to enable the lights with VCDS. Byte 1 Bit 2 needs to be enabled. There's no long coding helper with these - just have to trust that it works






    Finally suggest testing before putting everything back together:





    Last edited by tigger73; 30-08-2020 at 09:09 PM.

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



  3. #3
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    Looks good. How much drilling is required to remove the plastic in the rear plastic moulding?
    Current:
    2017 Mk2 Tiguan 162TSI, R-line, White
    2020 Mk7.5 Golf R Wagon, White

  4. #4
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    Quote Originally Posted by veew View Post
    Looks good. How much drilling is required to remove the plastic in the rear plastic moulding?
    You actually need to remove quite a bit of material. That's why I had the spade bit out. It actually depends on the light housing but all mine were the same moulding (not for left and right sides). You will only need to remove the material on one side in this case as on one side it will fit and on the other side it'll hit the back of the door panel.

    If you do the mod you'll figure it out but just be ready to cut out some of the plastic internals of the door. When you're doing it be careful not to damage the part that the light clips into and just remove the material at the back.
    Last edited by tigger73; 30-08-2020 at 10:44 PM.

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



  5. #5
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    Just a question Are the plug sockets at the same end on all 4 of them or are two opposite
    If you got this set would it fit without mangling the door

    4Pcs Car LED Door Warning Light Welcome Projector for Golf 6 7 Jetta MK5 MK6 Passat B6 B7 CC TIGUAN Scirocco|Decorative Lamp| - AliExpress
    Last edited by Hillbilly; 31-08-2020 at 02:59 PM.
    2021 Kamiq LE 110 , Moon White, BV cameras F & B
    Mamba Ebike to replace Tiguan

  6. #6
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    Quote Originally Posted by Hillbilly View Post
    Just a question Are the plug sockets at the same end on all 4 of them or are two opposite
    If you got this set would it fit without mangling the door

    4Pcs Car LED Door Warning Light Welcome Projector for Golf 6 7 Jetta MK5 MK6 Passat B6 B7 CC TIGUAN Scirocco|Decorative Lamp| - AliExpress
    On the set I got all 4 had the same housing. I.e. the connector was it the same location and there wasn’t a left and right side with the location flipped.

    Hence why I only had to modify one of the rear door cards to get the light to fit. It’s not a massive issue as it’s internal to the door so you’re never going to see it. Just another step to get the light housing to fit.

    I suspect many of the sets being sold would be single moulding only.


    Sent from my iPhone using Tapatalk

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



  7. #7
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    Quote Originally Posted by tigger73 View Post
    On the set I got all 4 had the same housing. I.e. the connector was it the same location and there wasn’t a left and right side with the location flipped.

    Hence why I only had to modify one of the rear door cards to get the light to fit. It’s not a massive issue as it’s internal to the door so you’re never going to see it. Just another step to get the light housing to fit.

    I suspect many of the sets being sold would be single moulding only.


    Sent from my iPhone using Tapatalk
    What i wanted to know is if the socket is in the middle of the fitting does it need cutting to fit it.

    Another way to cut it is to use a soldering iron and just melt it along a line and use heatshrink on the soldered joins.
    Spade bit ???? edge of a standard bit works and doesnt shake around
    Last edited by Hillbilly; 31-08-2020 at 05:33 PM.
    2021 Kamiq LE 110 , Moon White, BV cameras F & B
    Mamba Ebike to replace Tiguan

  8. #8
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    Quote Originally Posted by Hillbilly View Post
    What i wanted to know is if the socket is in the middle of the fitting does it need cutting to fit it.

    Another way to cut it is to use a soldering iron and just melt it along a line and use heatshrink on the soldered joins.
    Spade bit ???? edge of a standard bit works and doesnt shake around
    Socket is on one end. Yes and I should get some heatshrink for these types of jobs... Probably should have got my file out and cleaned it up but nobody else is going to see it except for the whole internet

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



  9. #9
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    Quote Originally Posted by tigger73 View Post
    Socket is on one end. Yes and I should get some heatshrink for these types of jobs... Probably should have got my file out and cleaned it up but nobody else is going to see it except for the whole internet
    LOL

    I have been looking at some which have socket centred and hopefully they will fit as they are quite a bit cheaper than yours and I really only need two as hardly never have passengers in the back
    2021 Kamiq LE 110 , Moon White, BV cameras F & B
    Mamba Ebike to replace Tiguan

  10. #10
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    Quote Originally Posted by Hillbilly View Post
    LOL

    I have been looking at some which have socket centred and hopefully they will fit as they are quite a bit cheaper than yours and I really only need two as hardly never have passengers in the back
    Well if you're putting them in the front I didn't have to do any modifications. It was only the backs that I needed to modify the door cards slightly to clear the connector.

    2017 Tiguan Sportline - Tigger73's 162TSI Sportline

    2016 Scirocco R, stage 1, 205kwaw (sold) - Tigger73's Scirocco R Build
    2013 Tiguan 155TSI, stage 1, 144kwaw (sold) - Tigger73's 155TSI Build
    2011 Tiguan 125TSI, Stage 2+, 152kwaw (sold)
    - Tigger73's 125TSI Build



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