Quick question. Are the fog lamps on a W123 5.75" in Diameter? I know the regular headlamps are 7" but what about the fogs?

thanks,

Glenn

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2012 Mercedes ML350 Bluetec 91K (hers)
2005 Corvette 55K (fun car)
2002 VW Jetta TDI 231K (mine)
1998 Volvo S70 T5 Turbo 196K (kids)
1994 Ford F150 4WD 249K (firewood hauler)
1983 Mercedes 300D 376K (diesel commuter)

i think they may be slightly less than that because it seems it takes a small amount of cutting to fit the nice 5 3/4" ECE lamps on a W123. i haven't done it yet.

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'77 240D, 504H, OM617.952, etc.

I would have to Google search but off hand I want to say they are 5 inch....

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I can tell ya for sure Wednesday night. I ordered a set of 5.75 headlights and yellow H7 bulbs to go in 'em. Several threads on many boards claim 5.75 headlights fit with minor grinding on the centering tabs.

I never know if it's my car or not they're talking about since there are euro and non-euro and all, but it was worth the $40 to find out. If they don't I've got an old motorcycle that uses that size and could use an upgrade from sealed beam. The kit comes with h4 which is what the bike would use.

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Eric, CPO, Submarines, retired.
Here's a sig line...
Mine: '68 Corvette LS1/4L65E, 83 240D, 2000 GMC 4x4, 08 FLSTC Anniv
Hers: '72 Corvette 454/4spd, '99 MB SLK, '93 Metro vert, 78 240D, '92 Silverado, '65 Fjord Rustang, '59 Fjord Fairlane, '17 Slingshot.

Just went out and measured mine...5.75" diameter. Maybe more or less...just stuck a ruler on and looked carefully. Shouldn't be that much different, housing ring or not.

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- 1979 W123 240D 4-speed, 390k miles

Threads I read said 5.75 was right size and just the locator tabs needed a bit of grinding. I figger a little work with the dremel and they'll go. My current ones have rusted out reflectors and cracked lens. I don't really need 'em since I'm running melt your face wattage H4 conversions for headlights but more light is good. I'm paranoid about forest rats.

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Eric, CPO, Submarines, retired.
Here's a sig line...
Mine: '68 Corvette LS1/4L65E, 83 240D, 2000 GMC 4x4, 08 FLSTC Anniv
Hers: '72 Corvette 454/4spd, '99 MB SLK, '93 Metro vert, 78 240D, '92 Silverado, '65 Fjord Rustang, '59 Fjord Fairlane, '17 Slingshot.

Sounds like 5.75" it is....thanks all.

__________________
2012 Mercedes ML350 Bluetec 91K (hers)
2005 Corvette 55K (fun car)
2002 VW Jetta TDI 231K (mine)
1998 Volvo S70 T5 Turbo 196K (kids)
1994 Ford F150 4WD 249K (firewood hauler)
1983 Mercedes 300D 376K (diesel commuter)

Do fog lamps use H3 bulbs?

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85 300CD Signal Red/Tan sold
83 300D Manganese Brown 109K
97 E420 Midnight Blue 197K sold
98 BMW 328i Vert White 100K, sold
95 BMW 525i White 125K, sold
93 BMW 525iT Red 193K, sold
95 E320 Green Wagon 125K, sold
94 E320 White 127K, sold
85 300SD 156K Grey (Annie), sold
84 300D Lapis Blue 170K (Judy), sold
99 ML 320 Black (lease), 1998 C230 White (lease)
00 Honda S2000 Red (lease)
86 Mercedes 300E (sold)
84 Porsche 911 Red (sold), 1965 Porsche 911 White (sold)

5.75", H3 yes

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