Blu_Ray_UK2007 Posted May 27 Share Posted May 27 Salutations, Two days ago, I had an unusual error: all side markers (front, side, and rear) flash rapidly when I activate the left or right side markers. However, when the hazard lights are engaged, the blinking speed is normal. Bimmerlink indicates various problems, however all bulbs are functioning properly. This morning, I started the car, and all systems functioned normally, including the side markers. However, after driving for over two hours and parking the vehicle at home, the problem reoccurred after one hour of inactivity, and the blinking speed of the markers increased once more. I possess a 2008 BMW E90 Pre-ICI from Germany. I suspect that a grounding connection may be corroded or damaged, as it has been raining for an entire week, perhaps allowing water to into the trunk. The day prior, I encountered issues with the markers; one bulb for the trunk stripes was defective (blackened and burnt). I changed it and observed a single drop of water on the burned bulb. No corrosion was detected in the light bracket, nor was there any visible evidence of water. What should be the next focus? I believe the Footwell module is not defective, as it functioned for over two hours today without any issues. Do you believe the wires beneath the "harmonica" protection attached to the trunk are compromised, or is there corrosion (water damage) affecting the grounding within the boot? Where should I inspect for grounding connections to the vehicle in the boot? Any assistance is appreciated, as I am uncertain where to proceed next, given that all lights are functional. Quote Link to comment Share on other sites More sharing options...
Blu_Ray_UK2007 Posted May 27 Author Share Posted May 27 Error codes are displayed in the photograph: Quote Link to comment Share on other sites More sharing options...
jimmy47785 Posted May 27 Share Posted May 27 Inspect the wiring and plugs of the lamps for indications of burning; it is not unusual for the earth pins of rear lighting to sustain burn damage. Quote Link to comment Share on other sites More sharing options...
Blu_Ray_UK2007 Posted May 27 Author Share Posted May 27 The previously burnt bulb exhibits blackened or charred pins beneath. I have cleaned it by scraping lightly, and today I will sand it down and re-prime it if the contact remains inadequate. Where is the earth pin for the backlight or tail light located in the trunk, or where is the screw that connects all earth wires to the car body from the trunk? I attempted to locate it online, but only instructions for repairing the cables connecting the car to the trunk are available if the wire is damaged. Thank you for your remark! Quote Link to comment Share on other sites More sharing options...
VWDaveBMW Posted May 27 Share Posted May 27 A supplementary earth wire must be added to the bulb holder's earth connection. Quote Link to comment Share on other sites More sharing options...
Blu_Ray_UK2007 Posted May 27 Author Share Posted May 27 What do you mean by need a second earth? Where should the secondary earth wire be connected to the bulb holder and the vehicle? Could you provide diagrams or explain the procedure? Thank you for your response! Quote Link to comment Share on other sites More sharing options...
jimmy47785 Posted May 27 Share Posted May 27 Connect the earth silver wire to the bulb holder and extend it to the body. Quote Link to comment Share on other sites More sharing options...
Auto Car Forum For Everybody
Auto Car Forum For Everybody
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.