MOT failure!

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MOT failure!

Post by deltic » Mon Mar 19, 2018 10:29 am

Annoyingly, just on an earth fault on the rear lights, I should have spotted it. I cleaned up the earth connections which seemed to do the trick but as I couldn't quite tell whether there was some optical illusion between the indicator and tail light I decide to dismantle the rear light at which point three of the bulbs fell apart! Apart from numberplate lights I don't recall ever replacing any rear bulbs so they must be all at least 17 years old and had obviously deteriorated with age. Something to check.

Re-test tomorrow afternoon.
1991 BX GTi Auto, grey, 133,000 miles (2015 & 2017 Citroen Classic Challenge veteran)
2006 C4 VTR+ 2.0 Coupé, silver, 60,000 miles

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Re: MOT failure!

Post by rutter123 » Mon Mar 19, 2018 11:34 am

I had this on mine a few years ago where the taillight was dimming slightly with the indicator on, just earthed direct to the body, problem solved.
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Re: MOT failure!

Post by Jaba » Wed Mar 21, 2018 10:21 pm

Me too. I have soldered in big fat earth cables from the PCBs to the bodywork earth terminal. Annoyingly my MOT tester was keen on checking for the dimming interference from the indicators.
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Re: MOT failure!

Post by Tim Leech » Mon Apr 02, 2018 8:58 pm

And me, common weak spot.
1985 BX 19GT Mk1
1991 BX 19TZI Auto A/C
1994 Xantia 1.8i SX
1972 Morris Marina 1.8 SDL
1979 Rover SD1 V8-S
1980 Morris Marina 1.7HL
2002 Rover 75 CDTi Connossieur SE AUTO Nav
2002 Rover 45 1.6i Spirit S Special
2003 Rover 25 1.6i XL 5 DR
1963 VW BEETLE 1200