Daimler XJ40 4.0 1992:
Sometimes the abs works, sometimes not.
When i turn on the car, the abs lamp light, then goes off.
when i drive, if i push the brake with moderate strenght, the abs light remains off.
if i push the brake rapidly and with more strenght, the abs light goes on.
if i brake on very slippery surfaces the abs sometimes works correctly
(pedal pulsing) , instead on dry surfaces the tyres lock.
My mechanic refuses to put hands on the system, because he don’t have the diagnostic tools.
so i ask for help to the group… my idea is that the accumulator could be the cause, but i don’t want to change pricey parts just for fun.