I love you guys.
Thanks for the info.

I searched for months for a good maintenance book for the ML320.
Paid $30 on Ebay for some Floppy disc's that were crap. Paid $50 for a thick Chilton on SUV's which hardly covered the ML.

Thanks again for the direction. This Web site with is the ticket.

3/10/2004 update - I found the horns. Only checked one so far (right) and the horn was so rusted ,, the negative wire rusted off with the connection that origionally was part of the horn. I soldered on a new wire to the horn..and put JB weld over the fix. Will update with results.

3/11/2004 right horn now works. Left horn not yet.
I fit into the "SLIM ODDS" catagory. Both horns seem broke.

3/26/2004
Sure Enough, replaced the Left horn with a Honda 700 Magna horn and I have sound. Right side quit again, so I am done patching the origionals and will replace the right side with a honda horn also. ( I restore motorcycles and have horns in my part bins).

__________________
Steve Danville
what i did myself.
CPS
rear shocks
MAS x 3.
SparkPlugs (twice)
Fuel pump & Filter
Window switch
replaced both failed horns with Honda horns.
Cleaned ERG Tube
Oil changes
Oil consumption Fix
Brake Pads
A/C Recharge
Anti-Freeze change X 2.
Front Shocks. Monroe. $90
Mercedes Warrenty Work:
Harmonic balancer,power steering clamp. Cat converters.Drive Shaft Bearing.s
Replaced Outer Lower Tie Rods and front lower ball joints at 156,000 miles