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Upgrading reverse bulb on st170

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Old Jun 7, 2016 | 07:27 PM
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Default Upgrading reverse bulb on st170

Hi, as above really
I tried these super bright 24 led bulbs with the resistor....the resistor got hot but bulb wouldn't light up, so they sent me another and again nothing.
Will led's work in the reverse light fitting?
or can I get brighter standard bulbs (is it 21w standard)
Thanks for any comments or suggestions
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Old Jun 8, 2016 | 05:30 AM
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the reverse & foglights on the 170 are all wired up back to front with a positive earth, so only way to fit led style bulbs is to reverse the polarity as I have 2 reverse led lights on my 170




Last edited by STeve; Jun 8, 2016 at 05:34 AM.
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Old Jun 8, 2016 | 11:54 AM
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Originally Posted by 1-PD
the reverse & foglights on the 170 are all wired up back to front with a positive earth, so only way to fit led style bulbs is to reverse the polarity as I have 2 reverse led lights on my 170



That's great info mate thanks, makes sense now.
So did you just wire the LH reverse from the right hand reverse wires?
Cheers
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Old Jun 8, 2016 | 04:14 PM
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as I break 170s I simply cut the loom on a donor car and made a patch lead reversing the wires taking the feed from the left and simply running reversed wires to left & right with correct polarity, the foglights in the front are also wired arse about face too
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Old Jun 8, 2016 | 07:43 PM
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Im after the oposite. I want a nsr fog light lense instead of the reverse lamp.
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Old Jun 8, 2016 | 08:38 PM
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thats easy to do also glenn
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Old Jun 9, 2016 | 01:04 AM
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Originally Posted by 1-PD
as I break 170s I simply cut the loom on a donor car and made a patch lead reversing the wires taking the feed from the left and simply running reversed wires to left & right with correct polarity, the foglights in the front are also wired arse about face too
Thanks again 1-PD
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