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Foggy headlight - NCT tomorrow

  • 05-01-2022 11:01am
    #1
    Registered Users Posts: 2,575 ✭✭✭ j@utis


    So basically it's full of water drops and condensation. Is this is major issue? NCT is re-test for emissions which it failed for last time.



Comments

  • Registered Users Posts: 28,315 ✭✭✭✭ vicwatson


    Can you use a hairdryer in it to dry it out?



  • Registered Users Posts: 5,344 ✭✭✭ LollipopJimmy


    Is it a re-test within the 28 days? If so they will just check the fail items



  • Registered Users Posts: 2,575 ✭✭✭ j@utis


    Yes, it is within 28 days. It took me over an hour to dry it out the last time and it only lasted until the next rainy day. I obviously have to remove it and reseal it but I just have no time for it today.



  • Registered Users Posts: 90 ✭✭ pron


    Old way to dry it out : Open the back cover, turn on the lights - the heat from the bulb should cause the condensation to evaporate and be drawn out to the cooler air outside.

    Optionally, add a sachet or two of silica gel inside the back of the headlamp unit ..

    Bigger question is, how did it get wet - that's usually a sign of a small crack / split somewhere letting excessive moisture in.



  • Registered Users Posts: 2,575 ✭✭✭ j@utis


    You're right, there is a crack from accident two years ago and it only started fogging up about a week or two ago.



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  • Registered Users Posts: 2,575 ✭✭✭ j@utis


    My bad, NCT retest is outside 28 days, hair dryer is doing the job but it's also raining tomorrow, so I feel this is a futile effort...




  • Registered Users Posts: 4,614 ✭✭✭ mikeecho


    Try a shot of dipetane.



  • Registered Users Posts: 3,353 ✭✭✭ 10-10-20


    There's never been an NCT which couldn't have benefited from an auld shot of dipetane...

    Dipetane: Getting old crocks through the NCT since 2001.



  • Registered Users Posts: 2,575 ✭✭✭ j@utis


    I need to take a week off work to get that done because bumper has to come off first to remove the headlight.

    You could only guess how long it took me to swap old battery for new earlier today 😂 nothing ever goes to the plan, like never ever.



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  • Registered Users Posts: 2,575 ✭✭✭ j@utis


    Never heard of it until now. Car was burning 1ltr of oil every 1200km before other treatment it got recently, fingers crossed it worked.



  • Registered Users Posts: 5,367 ✭✭✭ kirving


    Painful, but even a bumper off job should just be a half day DIY and a couple of hours for a mechanic. In the short term, silicone (or similar) sealant should help keep the water out. Just make sure both sides are extremely clean using alcohol or similar beforehand.



  • Registered Users Posts: 151 ✭✭ Lazybones


    Hope you get sorted for the NCT. Do you mind me asking what treatment you used to address the high oil consumption?



  • Registered Users Posts: 1,465 ✭✭✭ Notch000


    Tak off the rear rubber dust cover aound the bulbs and leave it off , the moisture will escape out into the engine bay when the lights heat up



  • Registered Users Posts: 2,575 ✭✭✭ j@utis


    It's a PASS!!! I'm celebrating it heavily tonight because I need after all this 😂

    The special treatment involves new piston rings and new valve seals and it is prohibitively expensive and has sent many otherwise sound vehicles to the early grave. Result is delightful ten fold fall in CO emissions and another happy year of motoring, although I'm hoping to get at least another 3 years out this car to justify the costs of repairs.




  • Registered Users Posts: 2,575 ✭✭✭ j@utis


    I wanted to go the silicone route yesterday after drying it out , but because nothing ever goes to the plan - the only tube of clear silicone I had, was hardened and I didn't want to use gray or brown... Headlight was dry and clear for the test at least. The bumper removal job is easy for those who have all the tools and some experience, and maybe even a garage to avoid the elements, but I posses none of those, so yeah I'm planning at least 3 days for the job with many hiccups 🤣

    Didn't I mention yesterday that after longer than expected battle to get the old battery out, I was only to discover that the new one was in the booth which was locked... I had like 3 meltdowns during all the process, well the good thing is that next time is gonna take those 5 minutes, as it supposed to!

    Post edited by [email protected] on


  • Registered Users Posts: 2,575 ✭✭✭ j@utis





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