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Joined: 18 Jul 2018
Posts: 103

PostPosted: Thu Jun 20, 2019 9:50 am    Post subject: LED Indicator bulbs Reply with quote

Hi guys,

Annoying little issue here

I have a pair of LED bulbs for the rear indicators.

The right side of the car works just fine, the left side throws an error code and hyper clicks. The lights don't flash at hyper speed, just the click goes hyperspeed.

I can switch the bulbs from side to side and the fault stays with the left hand side. Put the original bulb in and the fault at hyper clicking goes away. Right side of the car is fine all of the time.

Why would this only effect one side of the car?

Nothing's ever easy is it frustrated

*Edit* Problem solved with some fancy resistors, link in a post below. That makes for a dear pair of LED bulbs, but they are much brighter than standard Thumb
And still much cheaper than genuine all red rear lights Very Happy
997.1 C2S

Last edited by PGD on Wed Jun 26, 2019 2:28 pm; edited 1 time in total
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Joined: 27 Feb 2018
Posts: 100
Location: Berks/Oxon border

PostPosted: Thu Jun 20, 2019 2:15 pm    Post subject: Reply with quote

I had the same issue with my rear fog lamp, it would illuminate for 2 seconds then go out and give a bulb blown warning on the dash.

Unfortunately German cars are very sensitive when swapping bulbs out for LED's, I called my supplier ( https://www.classiccarleds.co.uk/ ) and he suggested a ballast resistor for my problem which worked a treat.

Yours being an indicator could be a different issue so it's worth giving Duncan at Classic Car LED's a call and I'm sure he will know what the issue is and have a solution for you.
Full fat Hartech'd C2S Manual
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Joined: 18 Jul 2018
Posts: 103

PostPosted: Thu Jun 20, 2019 3:49 pm    Post subject: Reply with quote

Thanks for the reply

I've mentioned this to the bulb supplier and they said use this resistor kit. Also give a video about the error to which is good. They say '95% of cars are fine with these bulbs, but if you have one of those 5% of cars you'll need these'

Typical Grin

Resistor link:

They are ordered so fingers crossed they do the job Thumb
997.1 C2S
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Joined: 12 Feb 2019
Posts: 46

PostPosted: Thu Jun 20, 2019 4:14 pm    Post subject: Reply with quote

I had this with my front aftermarket replacement LEDs
Behaved like a blown bulb
Was actually a loose wire on the connection
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