The engine in my car has the old style. it works fine, no noise, leake etc. I read here that these can be self-destruct and destroy other things. Can these be maintained (cleaned etc.) or they need to be changed regardless. Also, some changed the newer ones as a preventive measure. In the MRBZ CD there nothing mentioned except " vacuum pump updated for cost reasons". can somebody explain more to me this issues,
Can I find a good used one (new style)?
thanks