audijim113

I've been making progress on a issue having to do with speed sensor signal . ABS, and other junk, and awaiting delivery of a brake light switch, which might be the culprit. In the meantime, it was suggested that I should check the electrical grounds given the car is aluminum. Back in the day, it was easy to see engine to firewall, copper mesh straps. Looking around the ABS, I can't find anything like that.

I understand there are a number in the drive side footwell. Any other suggestions where to look for flakey ground connections? Someone said to look for "fuzz" like on a battery terminal but I can't see any of that anywhere other than my grandson's chin who might be shaving soon. Also, what, if any compound or electrical grease might I put on a connection to stop any galvanic action.

MP4.2+6.0

I would dig into/invest in a manual that should give you a detailed rundown of grounds. Expect among others to find them somewhere near each of the various fuse boxes and main relay area--sides of dash, under dash at relay area, both sides of trunk. On drivetrain, I often see the equivalent of the old school firewall to block ones somewhere near the main motor mounts, and there may be one from the rear suspension subframe to something on the body. Yes, change brake light switch if not already done and then you will be under there anyway to look for ground points. As others may have mentioned, preemptive strike is to change air suspension relay in same general area at same time.

Go to the electrical aisle and get some antioxidant paste used for std. electrical wiring. It is used any time you have aluminum cable meeting copper or steel circuit panel screwdowns, or even other larger cables. Obviously can be used on things like battery connections too. Sold in both household glue shaped bottles and smaller squeeze tubes.