1972 280se 4.5 tire size and speedometer adjustment - Mercedes-Benz Forum

 
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post #1 of 2 (permalink) Old 10-03-2009, 08:14 PM Thread Starter
BenzWorld Junior Member
 
Date registered: Jan 2008
Vehicle: 1972 280se 4.5 w108 and 1984 280sel w126 euro
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(Thread Starter)
1972 280se 4.5 tire size and speedometer adjustment

Ok. So I put different tires on my 108. Instead of 185 VR14 I put 195 70 14. The speedometer is off a little. It is reading a little high at the moment. Does anyone know how I can adjust the cable to accommodate the different size tire? Or do I have to have a mechanic do it if I decide it bothers me that much?

Another question for someone who would know:
The headliner is not attached on one side above the back center window and it looks like the only way to secure it in place is to glue it there under the rubber lip. Has anyone done this and what kind of glue would you recommend?

One other thing. On my 108 when going above 50 mph there is a noticeable wind noise that seems to be coming from the airstream hitting the side view mirror. I don't have a mirror on the passenger side and there is no noise coming from that side. I had the same problem on my toyota camry because I put the wrong replacement side view mirror on it and until I changed it to the correct one there was the wind noise. Is this a design flaw/common thing in the 108? The side view mirror looks like it's the original. I have only had this car about a month.

Thanks for the help and info.

Dan
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post #2 of 2 (permalink) Old 10-05-2009, 11:56 AM
BenzWorld Senior Member
 
Date registered: Jul 2004
Vehicle: 1971 280SE 3.5 Coupe
Location: Nevada City, ca
Posts: 413
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I have the same problem on my 111 3.5. I installed a 3.27 axle and 16" wheels and as a result my speedo reads way low. I don't think there is any way to adjust your speedo to correct it. I did find a device that is a sender on the transmission and a motor on the speedometer so you can calibrate your speedpmeter but it is really expensive. If you find a solution post it so we can see what you did.

Tony
280SE 3.5 Coupe
Stick shift
3.27 Axle
5.6 Iron block build in progress
3.5 Tony is offline  
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