Audi A4 Coolant Disappearing. Web adding coolant to an a4 aldi or volkswagen passat it’s pretty straightforward. Web coolant leaks in audis most often occur where the hose connects to the engine.How to Change Coolant 200409 Audi A4 1A Auto from www.1aauto.comScrubadub march 31, 2011, 3:47pm #5. It’s also possible for a coolant leak to. Posted by 6 years ago. … [Read more...] about Audi A4 Coolant Disappearing

