PeachParts Mercedes-Benz Forum - View Single Post - Do aftermarket fuel gauges work with the M-B sending unit?

G-Benz · #2 03-01-2006, 06:54 PM

I can only speak from experience from doing a fuel gauge swap from the stock VW to an AutoMeter guage.

The determining factor here is what resistance range does the gauge recognize? You also have to know what the ohms the sender puts out at the full and empty levels in the tank.

When I got the Auto Meter gauge, the kit included different resistor packs to match senders from Ford GM or Chrysler vehicles. Turned out the Chrysler pack more closely matched the original VDO sending units.

I'm not sure when British cars universally went from positive to negative ground, but it may be a concern when it comes to illuminiating a Smith fuel gauge...the sender connection would still fall under the same constraints as far as resistance range.

For MB, I believe VDO gauges would more closely match MB resistance specs.