I have just bought a t6 and the inside and outside are spotless but the engine bay is a disgrace (dusty crap, not oil). will I be safe to give the engine a blast with the pressure washer or is it a bit of a gamble on VWs? I am used to land rovers and when they get dirty there is no problem with blasting them but I don't want to do the van and cause a world of grief with wet plugs/sensors etc.