these guys are good: http://www.nhspeedometer.com/

Isn't it cable driven in which that or the drive could be at fault? Isolate the problem with the speedometer before sending it out for repair.

It's electronic and I had a shop test the voltage coming into the cluster and they said it checked out fine so it must be the cluster.

And thanks for the recommendation.

Speedometer Plus
 

I found "www.speedometerplus.com", located in Los Angeles last summer.

Their service was $90, and was very quick.

But I am glad to hear that there is a good place in Georgia, much closer to home...

Following up on this old thread, I went with Ken at the Benz Store.

www.benz-store.com.

He's in Georgia and that made UPS ground shipping faster than some of the others. Very nice to deal with, he charged me $125 for what turned out to be a problem on the circuit board and got it back to me in two days. The whole process took less than a week.

Thanks to everyone for their input.

We've used BBA-reman on several occasions,have found them to be honest,dependable,with a pretty good turn around time.

Ken is great, always very helpful

I am glad this thread came up because last week the odometer/trip stopped working on my 300SEL last week. Since I have an erratic fuel gauge. I had been "resetting" the trip odometer like a fool to keep track of my mileage. I have owned three 80s Mercedes and never had a odometer problem, although I knew it was a common deal, so I never used my trip odometers on those cars. I am sure I sped up the failure on my 300SEL by resetting it when I refueled. Its over now and its broken.

Aside from the parts, about how much would an Mercedes shop (not dealer) charge to remove the cluster and replace the gears on a W126? I would think a good shop (we have a couple) would have a good source to buy these, or may have some extra parts onhand.

I guess I could call tomorrow and get a quote, but wondering what people here had paid on average... I am not much of a DIY'er, so not really wanting to do this myself. I also need to get my coolant changed out and a new EHA valve, so it may be a good time to do that as well.

Thanks.

Found a shop in Austin Texas. Fixed the speedometer from my 84 300D for $80 had it ready next day.

Overseas Speedometer
800-444-0292
512-329-8200
www.speedometer.com

Added to
 

Instrument cluster, Odometer, Speedometer, Tachometer links
http://www.peachparts.com/shopforum/diy-links-parts-category/188540-instrument-cluster-odometer-speedometer-tachometer-links.html

I'm getting ready to ship mine to James at MBCluster.com. He is familiar with 124's and it sounds like he has a nice test bench and the experience to check these older units out. I file a progress report once he gets my unit and gives me some feedback.

Good to know. Let us know how it turns out