Adi6pac Posted May 1, 2017 Share Posted May 1, 2017 Hi everyone I'm new to this forum and need some expert advice please. My Engine management light is displaying and its annoying. I've taken the car to Audi to do a diagnostics and they have suggested that there is an issue with the cooler egr valve v400 for my Audi A4 B8 2.0 Tdi. I would like to clarify if v400 fault relates to a cooler pump issue . I would like to clarify if v400 fault relates to a cooler pump issue . I'm planning to this privately but just wanted some advice if anyone had any similar issues. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted May 1, 2017 Share Posted May 1, 2017 Issues with egr & egr coolers are common on modern vag Diesel engines unfortunately. I worked in a vw service department that's how I know. Quote Link to comment Share on other sites More sharing options...
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