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wegweiser

fuel tank FACTS for Cris, et al....

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Here are some details on fuel tanks as fitted to 2 liter cars from 1969-1976. Taken from BMW parts books...not the internet. Probably reasonably accurate, though the factory DOES make plenty of documenting mistakes. All VINS are US specific, I have interpreted them as best I can as to US model year application. REMEMBER - in Europe a "73 model year" was a square light car! I use US model years for simplicity/common application. (ie: only 74-on all had square taillights)

USA Market NON-tii:

BMW Part number 16 11 1 107 663

46 liter tank used to VIN 2572069 short filler neck, these cars can use later "long neck" tanks, but must be modified/shortened. (Used til mid/late 71?)

BMW Part number 16 11 1 110 613

46 liter tank from VIN 2572070 to 2583404. Longer neck, no 8mm vapor/vent nipple. (Used until mid 72?)

BMW Part number 16 11 1 110 642

46 liter tank from 2583405 to VIN 2593039. Longer neck w. vapor/vent nipple (used until early-mid 1973) for reference my April 73 car used this smaller tank. VIN 2590XXX

BMW part number 16 11 1 111 602

51 liter tank from VIN 2593039 to end of US production.

USA Market tii:

BMW part number 16 11 1 107 596

46 liter tank from 2760001 to 2761963 uses "twist to lock" pickup unit (to mid 72)

BMW part number 16 11 1 110 614

46 liter tank from 2761964 to 2764369 uses bolt in pickup unit (until mid 73)

BMW part number 16 11 1 111 604

51 liter tank from VIN 2764370 to end of US tii production (until late 74)

post-2748-13667591566245_thumb.jpg

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Thanks for the facts. Should be helpful to those of us who have had the (mis)pleasure of buying the wrong parts based on the VIN. I have a twist-in pickup that uses the o-ring seal.

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squarelights should be a drop in replacement on the earlier cars that have the long filler neck...so long as you use the correct sender unit.

mike

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squarelights should be a drop in replacement on the earlier cars that have the long filler neck...so long as you use the correct sender unit.

mike

Aren't the filler necks different? I thought they were but maybe not?

John

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Early and late tanks can't be swapped in my experience.

thats correct at least not easily. i have a late 51L tii tank in my 1970 m2 but when i replaced my quarters what you get is late quarters with the flange for the late tanks attached. im sure they could be adapted. my sender does not read correctly however as my tank is deeper. so it says im empty when i still have a lot of fuel left

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I dropped in a late 51 liter late 73-76 tank into my early (apr 73) car and made sure to install a later sending unit. no mods required. Like Mike says: as long as the neck is the long type - not mods required. it's those pesky pre 71 era cars that use the short neck tanks.

HTH!

Paul Wegweiser

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