Specifically, whats the size of the lug that mounts the battery cable to the inner fender?

Im looking to upgrade my cables to 1/0, but need to know lug size. Im not near my cars at the point in time when id like to order supplies...

Just want to get the right lug size...

Thanks!

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)

If you remove the Blot that holds the battery cable to the fender you can measure the diameter of the Hole.

__________________
84 300D, 82 Volvo 244Gl Diesel

Of course I can. Except that I'm not near my two cars, and am near some nice heavy gauge wire and a nice crimping tool. Thus i had hoped someone might know these stats.

Im guessing its a 13mm bolt, which would mean a ___mm shaft diameter.

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)

More than likely it is 8 MM but I'd use a 10 MM lug to be sure.

__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now

I recently replaced the negative ground cable on my SDL with #1 cable and used a standard lug with 1/4" hole from my work. The hole was so close to the original size on the original ground strap it wasn't worth looking for anything else.

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

Im a bit surprised to hear that! If the bolt is 8mm diameter, which is DIN standard, then 1/4 shouldnt fit and 5/16 should...

Maybe they do this to have more lug surface area touching the body??

Bolt info:

http://www.gizmology.net/nutsbolts.htm

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)

Just because it is listed as .25" doesn't mean it IS .25". If you buy a .25" flat washer I guarantee you the center diameter is greater than .25".

M.M.C. and all that GD&T jazz.

__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now

Yeah but 1/4 is 0.25", 5/16 is 0.315" and 8mm is 0.3149", as I recall. Thats a bug difference between 1/4 and 8mm.

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)

The lugs we had in stock have a bit of slop on 1/4" studs, was quite tight on the fender bolt. I'd imagine they're probably really 8mm/.25" "universal" designed or something.

__________________
Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

Thanks all! Any idea the length of tge w123 cable?

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)

I would help out with that but my Wife drives the Mercedes and is in another City.

I agree with the other guy on 5/16 inch hole.

__________________
84 300D, 82 Volvo 244Gl Diesel

This looks like about a foot -



I mean cable length, not lug hole diameter

Sixto
83 300SD

Buy a foot of cable, crimp a 1/4" lug on one end, crimp a 5/16" lug on the other end, lop off the end you don't need when you get home.

Sixto
83 300SD

Thats exactly what i havein mind. I just dont want to get a foot to find that i needed 14"!

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)

Do yourself a favor. Run another grounding cable from the earthing location over to the engine block, preferably the starter mounting.

Don't forget to vacuum out those hinge pockets since you're right there.

__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now