1987 Mercedes 300SDL - Fuel Sending Unit Restoration
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- เผยแพร่เมื่อ 16 ม.ค. 2025
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/ woodsandbarclay Fuel Sending Unit Restoration
Thanks for the video, the size of the socket is 46mm for those wondering
Thanks for the info! So glad you're enjoying the videos!
Thanks for the video.
You are welcome!
Great video. My needle is bouncing on my 84 380SL. I'll give it a try. Thanks
Yeah definitely take it apart just be very careful not to break the little metal wires.
I took myn apart and it was very clean no broken wires, but i found it has 3 wires , two very thin and one copper wire, despite cleaning and float moving freely and no rust the gauge still does not work, any ideas please, if i short the plug at the correct pins the gauge will read full so i assume wiring is fine upto the plug
Yes you are correct there are three wires. All I can tell you is that something's not working correctly in your fuel sender I really can't troubleshoot via TH-cam comments. However you can buy these still from the Mercedes dealership or you can just order them online they are available. I have to replace them all the time at the shop.
@@woodsandbarclay one of the pins does not give continuity from the outside to the the other side ie inside the sender, could that be the problem as the sender unit itself look new inside and out its that clean
Where did you buy that big socket?
You can order the tool from Kent over at mercedessource.com or you can just go to tractor supply and buy one of the big sockets and make it yourself.
What size socket do I need to cut down my good sir
I think it's 1 and 13/16th's
My wire have snapped , what is the specification of the wires so i can replace them please
I have no idea it would probably be easier to just order a used one on eBay.
@@woodsandbarclay thanks for your response, where i live there is no access to ebay
@@Alireza-sabb-f1 then you're going to have to remove one of the wires and have someone measure the thickness
@@woodsandbarclay done that sir, again thank you for responding. Found same thickness wires but it kept showing the fuel tank was full at all times. Tried copper but didnt work
Save my friend. I know that in one of these wires the level sensor has a rectifier diode. my 300sd was adapted another tank with different float. I need to know what type of this diode to install on the output of my level sensor. without it the pointer is oscillated sharply. I appreciate the help. Hug
Man that's a tough one I'm sorry I don't know the answer but I'm sure the interweb has the answer out there somewhere!!!
You showed the socket but didn’t mention the size.
I'll have to run out in the garage and take a look.
The size is 1 and 13/16 in
So this might be the reason my fuel gauge doesn’t read anything but empty?
Yep
@@woodsandbarclay thanks! I’m gonna try it tomorrow, seems easy enough
If any of the wires are broken though you will need to send it out for repair or just buy a new unit