I think you are reading the wrong relay
The 30 amp relay is a/c low fan..
High is the 15 [ which Benz has allowed upping to 25]
See what relays are in which sockets ["B" & "C"]
I have seen guys change them to the wrong slots..
On your car Low fan is in slot B. high fan is in C
*edited for typo
Last edited by Arthur Dalton; 06-01-2003 at 05:10 PM.