Astra K rear turn indicator LED modification (no error)

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FunkyRider83
Posts: 12
Joined: Wed Apr 03, 2019 5:01 am
Astra Model: K SRI VX 1.6T
Astra Colour: Silver
Location: Auckland/NZ

Re: Astra K rear turn indicator LED modification (no error)

Post by FunkyRider83 » Sun May 26, 2019 10:57 am

UPDATE:

After some more trial and error, I am able to increase the load resistor from 15Ohms to 25Ohms. It still works without triggering bulb out warning, and the long term load temperature I am now a lot more comfortable with.

When ordering the load resistors, choose 25W, 25R as new values. It will work better by reducing waste energy / heat by 40%.

The testing step by multi-meter will also have a different value, from around 13Ohm to around 24Ohm.


Matt9817
Posts: 50
Joined: Sun Jul 08, 2018 5:36 pm
Astra Model: SRi
Astra Options: Parking Pack
Astra Colour: Carbon Flash

Re: Astra K rear turn indicator LED modification (no error)

Post by Matt9817 » Wed Jun 05, 2019 1:41 pm

Done this myself, very easy to do and results are excellent. FunkyRider - do you think using the 25W 25ohm resistor is essential? I have mine set up with the 25w 15ohm one you recommended earlier.

F5D62F5A-EF89-4329-9542-2F788F72E924.jpeg



FunkyRider83
Posts: 12
Joined: Wed Apr 03, 2019 5:01 am
Astra Model: K SRI VX 1.6T
Astra Colour: Silver
Location: Auckland/NZ

Re: Astra K rear turn indicator LED modification (no error)

Post by FunkyRider83 » Wed Jun 05, 2019 11:21 pm

Matt9817 wrote:
Wed Jun 05, 2019 1:41 pm
Done this myself, very easy to do and results are excellent. FunkyRider - do you think using the 25W 25ohm resistor is essential? I have mine set up with the 25w 15ohm one you recommended earlier.
F5D62F5A-EF89-4329-9542-2F788F72E924.jpeg
Well done Matt! Good to see others having success using this tutorial. The difference between 15 and 25 ohm resistors is the 15 ohm one burns extra 4w when on. Not a significant amount, just a nice to have thing to reduce the power consumption, hence heat. After using the 15 ohm config for 3 months there was nothing wrong when I took them out. I just wanted to see how much I can push the bulb out detection circuit while reducing heat.

The original incandescent bulb burns 16W, LED with 15 ohm load resistor burns 14W, LED with 25 ohm load resistor burns 10W, all without triggering bulb out error. I also tried 33 ohm resistor but that one will give errors so I think 25 ohm is as much as I can push it.


Bonarius
Posts: 12
Joined: Sat Jan 19, 2019 6:55 am

Re: Astra K rear turn indicator LED modification (no error)

Post by Bonarius » Tue Jun 11, 2019 12:41 am

Thanks for your well explained tutorial! After long research I have to acknowledge the fact there is no plug&play bulb on the market, whatever a seller is promising. The only way to make this work is to make my hands "dirty". I will give this a try shortly.


astraowner
Posts: 871
Joined: Sun Dec 02, 2018 8:54 am
Astra Model: 2016 Astra K 1.6 110HP
Astra Options: Lane assist, dual zone Climate Control.
Astra Colour: Asteroid Grey

Re: Astra K rear turn indicator LED modification (no error)

Post by astraowner » Tue Jun 11, 2019 6:37 am

Bonarius wrote:
Tue Jun 11, 2019 12:41 am
Thanks for your well explained tutorial! After long research I have to acknowledge the fact there is no plug&play bulb on the market, whatever a seller is promising. The only way to make this work is to make my hands "dirty". I will give this a try shortly.
If you look at the, quite physically large resistor that he needs to add, it becomes evident that such a bulb would not be possible to make as a plug&play part.

The stupid thing here is that it would be easy for Vauxhall to make a variant setting that omitted the bulb check but as far as i know they never did.

How difficult would it have been to make a variant coding "Filament / LED" to be able to disable the check and warning.

If EU passes a law that says that LED bulbs can be used as replacement, you would still need to use a filament bulb or a LED and a resistor.

If they pass such a law it would probably be to save fuel, but this method saves no fuel as the saved energy is wasted in a resistor to make the car "happy"
2016 Astra K 110HP, Opel Eye camera, front and rear parking sensors, dual zone climate control and heated front seats, sight and light pack.


AussieKOwner
Posts: 27
Joined: Thu May 31, 2018 6:48 am
Astra Model: RS 1.6T
Astra Colour: Silver

Re: Astra K rear turn indicator LED modification (no error)

Post by AussieKOwner » Sun Jul 07, 2019 10:52 am

FunkyRider83 wrote:
Sun May 26, 2019 10:57 am
I am able to increase the load resistor from 15Ohms to 25Ohms.
I tried this mod with 25 Ohm resistors and still get warning messages but not every time I turn on indicator.


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