So fustrating, rear intermittent lights
For the last few months the rear passenger 'running lights' keeps failing and then start up again on my 2004 156 JTD. Everything can be fine for weeks and suddenly the rear light fails again. The failure might only last a few days before the light starts to work again.
The warning light appears on the dashboard, I have replaced the bulb several times and checked the bulb holder. All the visible electrical connections seem good with absolutely no corrosion or oxidation and the bulb seem to be firmly held by the connectors. The brake element of the bulb works perfectly
To say it is completely intermittent is not quite true, the bulb always fails if there is a police car behind me, the weather is dreadful or whilst driving on some unlit road in the middle of nowhere