I understand there are five vacuum modules on the 190e and if I change one, I should change them all. Can I do this without removing the dash? Since my blower has stopped spinning, I'm assuming I'll have to replace the blower and hope I can change that without removing the dash. Is that posible? Lastly, I get a fog blowing from the vents into the cockpit. Is there an easy way I can tell if the evaporator is leaking or if it is just condensation? I've never had that on any other car I've had with A/C before.

Thanks