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Old 11-10-2010, 10:35 PM
Tom Evans
 
Join Date: Jan 2007
Posts: 180
126 Electronic Odometer

I've got two 126 300SDs. The fuel mileage went down noticeably recently in one of the cars. I couldn't find anything wrong: quick cranking, excellent acceleration, little smoke and a smooth idle. About two months ago I had to replace one of the plastic gears in the odometer which was missing a tooth, causing the odometer to stop altogether. I still suspected an inaccurate odometer was the cause of my lower fuel mileage.

I swapped instrument clusters between the two 126s and the fuel mileage went back to normal on the first car and down on the second.

I have two used 126 speedometers for parts and know how to use a soldering iron. What parts should I be checking to repair this ailing odometer? Do I need to re-solder all of the solder joints? An other suggestions?

Thanks.
__________________
Tom Evans
69 280SE 91K (wish I still had it)
73 220D 98K
78 300D 134K
78 300D 185K
81 300SD 301K (still have)
82 300SD 321K (still have)
84 300D 268K
84 6.2 Diesel GMC Suburban 225K (a whole different story!)
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