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Old 06-08-2006, 02:01 AM
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Location: Mesa, AZ
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1981 300SD Speedometer Question

My son's 1981 300SD speedometer markings indicate a maximum of 85 mph. Some other 300SD vehicles show a top speed of 120 mph.

Does anyone know why?

Thanks in advance!

1981 300SD
1979 300SD
1982 Chevy P/U 6.2L diesel

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Old 06-08-2006, 02:15 AM
greasybenz's Avatar
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if i remember correctly 81-82 merc diesels had 85mph top speeds, and 83-85 had 120mph. Most people buy the 120mph and upgrade.
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
01 Dodge Cummins

2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
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1996 S420
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1993 190E 2.6
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Old 06-08-2006, 09:17 AM
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Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,471
It was a federal law!

late 70's to early 80's all cars had
Max 85 Speedo's thank Carter and the Gas crunch for it.
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Old 06-08-2006, 11:30 AM
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Location: Mesa, AZ
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Smile Thanks!

Thanks for the information!

1981 300SD
1979 300SD

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