Capacity of '75 300d fuel tank? - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 04-08-2014, 07:11 AM Thread Starter
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Capacity of '75 300d fuel tank?

Anyone know what the size of a 1975 w115 300d fuel tank would be?
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post #2 of 3 (permalink) Old 04-08-2014, 03:16 PM
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65 liters (reserve light comes on at 7 liters)
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post #3 of 3 (permalink) Old 04-08-2014, 04:59 PM
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That's about 17 gallons which is what I recall from my owners manual. Although I think it's rare that I've ever put more than 14 gallons in even with the reserve light on.

The issue with that tank and diesel fuel is filling it. Diesel fuel can get very foamy and I've found in that tank if you fill it and wait a minute then top it off slowly you can put another gallon or more into it. Bounce the car up and down and you can see big belches of air come out. I don't recommend that because if you do some fuel will come out too. But my point was it may hold that much but it's hard to put that much into it.

The W123 tank is very different and did not have this issue.

Sent from App
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