Introduction Many agree that the MKIV (A4) VW platform is one of the best that VW ever produced. And they further agree that with the diesel, especially the ALH engine code, it may be the peak of VW diesels. And the BEW engine in the ‘04-’06 TDIs isn’t far behind.  These cars are now either … Continue reading What Could Go Wrong? MKIV TDI at 500K miles