Great informative video, thank you for putting this up. Is there any reason why the voltage didn't drop when you tested the positive battery terminal to the ground wire in the boot? I'm having some strange issues with side lights not illuminating despite the bulbs being fine, seems to be an intermittent fault and at the same time the radiator fan doesn't always come on despite thermostat and temperature sensor being fine, so believe I have an ground/earth issue.
Thank you. No volt drop because the test was from the battery to the end of the earth wire to check that the cable was good, if the test had been to the chassis connection on the chassis side there would have been a drop. I did a video 'Repairing car cluster light electrical problems' when we had a problem with the rear lights on the Audi which shows my repair, still good years later. I haven't been impressed with the Audi's electrics. Good luck, Jon
@wotjonsez2560 ah yes makes sense, so check continuity of the earth cable! I've heard about the rear lights modification, this, touch wood doesn't seem to be an issue on my rear lights, as mentioned I'm having a few intermittant electric issues in the engine bay, which would suggest a bad earth on the engine mount etc
Great informative video, thank you for putting this up. Is there any reason why the voltage didn't drop when you tested the positive battery terminal to the ground wire in the boot? I'm having some strange issues with side lights not illuminating despite the bulbs being fine, seems to be an intermittent fault and at the same time the radiator fan doesn't always come on despite thermostat and temperature sensor being fine, so believe I have an ground/earth issue.
Thank you. No volt drop because the test was from the battery to the end of the earth wire to check that the cable was good, if the test had been to the chassis connection on the chassis side there would have been a drop. I did a video 'Repairing car cluster light electrical problems' when we had a problem with the rear lights on the Audi which shows my repair, still good years later. I haven't been impressed with the Audi's electrics. Good luck, Jon
@wotjonsez2560 ah yes makes sense, so check continuity of the earth cable! I've heard about the rear lights modification, this, touch wood doesn't seem to be an issue on my rear lights, as mentioned I'm having a few intermittant electric issues in the engine bay, which would suggest a bad earth on the engine mount etc
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