nickoyster4 Posted August 31 Share Posted August 31 A warning light indicating a "reverse light fail" appeared on my dashboard. Although I had the bulbs replaced, the caution indicator persisted. Eventually, I saw two warning indicators: one for the fog lights and another for the reverse lights. Subsequently, all of these warning lights ceased to illuminate, but a new caution light indicating a problem with my dipped beam appeared. All of the lights are functioning properly and changing the bulbs has no effect. Currently, I am experiencing a frustrating situation where I have to anticipate which caution light will illuminate when I begin the engine. It is rather exasperating, to say the least! Does anybody possess any suggestions on how to rectify the issue? Quote Link to comment Share on other sites More sharing options...
Gianni682 Posted August 31 Share Posted August 31 You have not provided information on the make and model of the automobile, as well as its manufacturing year. Have you performed a code scan? The issue might also be attributed to a deteriorating battery or a faulty grounding connection. Quote Link to comment Share on other sites More sharing options...
nickoyster4 Posted August 31 Author Share Posted August 31 The vehicle in question is a 2012 BMW 320d with a 2-liter engine. It is amusing that you bring up the batteries. I have observed that my auto stop-start feature sometimes activates itself in traffic when I have used any electrical components such as lights or music. My son has suggested that this behaviour may be indicative of a battery problem, which I was unaware might also impact the warning lights. Thank you for your contribution. Quote Link to comment Share on other sites More sharing options...
another_clean_sheet Posted August 31 Share Posted August 31 The most probable cause is a faulty rear earth pin. I suggest doing a search on Google or this forum for a solution, specifically on the repair for the rear tail light earth. This task is rather simple and I have successfully completed it on several BMW automobiles. The earth pin tends to become burned out, and in severe cases, it may not even be visible due to extensive damage. Quote Link to comment Share on other sites More sharing options...
nickoyster4 Posted August 31 Author Share Posted August 31 Thank you, I will inspect the situation after the rain stops. 🙂 Quote Link to comment Share on other sites More sharing options...
Gianni682 Posted August 31 Share Posted August 31 Prioritise following another_clean_sheet's instructions before purchasing a new battery. It is not uncommon for a 12-year-old automobile to still retain its original battery. If the battery in question is manufactured by BMW, it should possess a date code. The most convenient method I have discovered to ascertain the code is to capture a photograph of the battery and then magnify the image. The indicator is located at the highest point of the negative battery terminal. It will be represented as follows: a numerical representation of the week (40) and year (2017), with two numerals stacked vertically. The numbers are 40 and 17. Quote Link to comment Share on other sites More sharing options...
another_clean_sheet Posted August 31 Share Posted August 31 The e46 330d I sold after 16 years still has its original parts. Quote Link to comment Share on other sites More sharing options...
Gianni682 Posted August 31 Share Posted August 31 At the age of 14, I removed one and connected it to a maintenance charger. A few months later, my sister borrowed it to test it out as her own had stopped working. The decal remained on her vehicle for a period of one to two years until she sold it, hence the exact duration of its longevity is unknown. Quote Link to comment Share on other sites More sharing options...
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