Alright guys, I need some help. I have put a new water temp sending unit on my 85 300sd trying to get the gauge to work. Nothing happen. I just got a new temp, fuel, & oil gauge assembly and installed it on the car. The temp gauge did move when I turned the switch on " It did not move any with the original gauge" but no increase in needle after cranking and running engine. Also now the oil pressure gauge pegs out past 3 and sticks. This was an oem part. 1990 on the box. I did find a wire broke on top of the thermostat that I soldered back but I am pretty sure that is for the aux fan. Any help sure would be appreciated

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Joseph Blackwell
1985 300SD
1990 300 2.5 Turbo

Are you sure you changed the correct unit? Where is it located? Broken wires are not common on this car.

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Auto Zentral Ltd.