After installing the 87' Dash Pod, I knew I had to look else where to find the problem...Knowing that Mercedes has some problems with grounds, I looked on 'Alldata' to find the ground for the turn signals and I also found that the same ground was for the brake lights and the rear running lights....The ground is 'W6' (left side of trunk, below the hinge, behind panel)....Pulled the plastic panel out far enough to polk the ground with a long screw driver and found the ground was loose......Removed the plastic panel on the left rear (it took longer to remove the panel than the fix the problem)...Cleaned the ground and retightened, retested for the turn signal and gas guage movement...none...Problem solved....

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Hank

86 300E
99 E320
97 Dodge Durango SLT 5.2 V8