Hi, we are totally new to the 1999 2.8 Ducati motor home having had VW T4s before. We have a minor fault with the low fuel warning light coming in when the tank is 3quarters full and staying on. Is this a common fault and an easy fix
Well actually , yes , and errr yes .
Right well basically , the chances are , it's the plug connecting the sender unit to the van wiring . At present i'm in the process of doing quite major maintenance on my 2000 , 2.8 . Wiring is but one area . I have pulled loads of these plugs apart , and cleaned them up .
Now the sender unit is located in the top of the tank , with access being made through the cab floor . Left or right hand drive , the tank is located under the front nearside seat . Lift the carpet , or whatever floor coverings you have , and you should find an access panel , held in with screws . If you remove that you will find the tank sender under . DO NOT touch the fuel lines . Now be careful , as there's not a lot of room . You want the electric wiring plug , should be a square , sort of transparent white colour . There is a locking pin , so feel round the plug and find the bulge . You need to push that in to separate the plug , and the plug is likely gonna be stiff too . Mine was really stiff , just gently twist , side to side to break the seal , supporting the other side else you could break it away from the sender . Inside you will find two spade connectors , they need cleaning . Ideally the pins want removing from the plug (yes they do) , then giving grief with a dremel , but i'm a bit reluctant to explain that one , as these plugs are easy to damage , and you don't wanna go there .
Use a piece of wet and dry , do not use any heavier than 240 grade , and carefully clean the terminals . Before reassemble spray some electrical contact cleaner (available from most motorist discount centers) into the pin areas , both sides , and work the plug in and out . Be very careful , these plugs are difficult to work on , and the pins are very easy to bend , or even worse break.