Can anyone advise how water gets into the wiring “loom”? My 4yr old has issues with the NOX sensor. Having installed two replacements I am now being told water ingress into the wiring is causing NOX sensor to short. Needs a rewire after only 44k miles yet Peugeot can not advise how water could get into the wiring? Peugeot have since offered 50% contribution without explaining how water gets into wiring. Living in the UK we have rain -lots of it but by no means extreme compared to other countries. Offer suggests my 4 yr old car is halfway through the expected life of wiring in the Peugeot 2008. Worth noting.