I have a 94 c280 and i removed my guage cluster and put in white guages, only to find that the speedometer doesnt read anymore i need help with this asap, is there any way i can fix it or do i have to get a new one and if so does anyone kno where i can get a used one? thanks

How extensive was it put in the new white gauges? What was involved? Did you have to remove the cluster? If so, pull it out and make sure everything is still connected! Is only the speedometer not work? Or are other things not working?

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)

I made the guages myself i took out the whole cluster then took off the stock needles and guages replaced the guages with the ones i did and now the speedometer needle doeasnt work

thankss

Well I'd double check the connections in the back of the cluster.
I would think you have blown a fuse (#4), but that would disable EVERYTHING in the cluster, albeit the temp gauge.

__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)