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High humidity levels this time of year (88% today) so as with previous older cars of the Eighties and Nineties I regularly sprayed Duck Oil on the relevant electrical parts which always worked fine. However not being at all mechanically minded no idea where and what to spray on my 2003 A4 2litre FSI Avant as having starting problems, the latest last week with a relay in the ECU the inside of which had green marks everywhere.
Any advice much appreciated thanks....
Dielectric grease ;)
Sounds interesting how and where would you apply it ?
get a small rush and paint it on, you'll find that some of your plugs already have it on them, door loom connections etc.
Thanks will give it a go....
Regarding humidity in cars generally especially classics during the winter months and the start up problems I've recently been having, I began leaving a weather station in the car overnight also displaying humidity levels the first reading at the end of January showing 84% which was way over the top as it should always be roughly between 50% and 70%. So looked on Amazon for a Hygrometer and mistakenly as it turned out chose a Chinese one which was useless cheaply made and hopelessly incorrect when comparing with my own one.
What I didn't know at the time was that mine was an analogue hygrometer whereas the Chinese one was an ordinary hygrometer powered by a small battery, so because the instruction leaflet was the usual Chinese to English gibberish anyway got a refund from Amazon. Then after a bit of research I've just bought an analogue one which can be manually set to the correct pressure at will as in the link below whereas the battery ones as far as I know can't.
No expert so for what it's worth....:)
Lantelme 4127 Thermometer / Hygrometer Analogue Combination Machine for Interior and Exterior Use. Thermohygrometer: Amazon.co.uk: Garden & Outdoors
I work in the industry and humidity is a big 'consideration' to say the least... we monitor humidity and test in various environments generally 85/85 should be fine for a well made product but obviously time takes its tole. Inside your vehicle for an easy and reusable fix i would use a bag of moisture absorbent, you can heat it and reuse it. best of luck with the tests its a tough game!