My wife's 1995 318ti has an ABS error "33" REAR INLET VALVE FAILURE. Our usual mechanic said he can't check the 8 valves of the hydraulic unit becaue the resistance readings are only known to BMW. THe dealer wants over $200 just to run the final diagnostics.
Are these resistance values available anywhere besides a dealer?
Also, where could one go to buy the hydraulic valve, or the control module if it's not the valve.
Please help as we're looking at over $2000 in repairs right now.