rustyshell

its nearly always something simple like this, I'm gonna check my wiring now

it could also be dirty ABS wheel sensors , try and give a good clean

they are based Volkswizard Unit 2, 6 Dark Lane Hollywood Birmingham B47 5BN

have you tried volkswizard always find them very helpful

spray white vinegar on the mould,

The aux pump used to run all the time on mine, this may be hard to believe but check all your external bulbs have not blown, one of mine was blowed on the head lamp, replaced the bulb and this stopped the Aux fan continually running. Also check all your HT leads are fully pushed home on the spark plug and coil pack/dizzy

could be your aux water pump not switching off have a listen, once you turn off the ignition. its located above the exhaust manifold on the engine block