Mudman Posted October 29, 2014 Share Posted October 29, 2014 Friends car is showing a flashing coil when engines running and she claims its losing power. VW main dealer want £85 for a diagnostic so ran my OBDII reader and getting the following : Code P0407 Exhaust gas re circulation sensor B circuit Low So question is anyone else ever seen this and would it be an expensive fix ? Trying to get to her to avoid main dealer! Quote Link to comment Share on other sites More sharing options...
marzman Posted October 30, 2014 Share Posted October 30, 2014 Clean the EGR valve and then clear the code, see if that sorts it. 1 Quote Link to comment Share on other sites More sharing options...
StevoD Posted October 30, 2014 Share Posted October 30, 2014 (edited) i do recall recirc valves being shitty on the 1.9pds but cant really diagnosis over the web, if you can get a known good unit might be worth swapping and trying Edited October 30, 2014 by StevoD Quote Link to comment Share on other sites More sharing options...
marzman Posted October 30, 2014 Share Posted October 30, 2014 Having just googled, people are leaning towards replacement of the valve as opposed to cleaning. http://wiki.ross-tech.com/wiki/index.php/16791/P0407/001031 Quote Link to comment Share on other sites More sharing options...
Mudman Posted October 30, 2014 Author Share Posted October 30, 2014 Thanks All looks like a parts about £60 and a few hours labour as not confident on diesels Quote Link to comment Share on other sites More sharing options...
Mudman Posted October 30, 2014 Author Share Posted October 30, 2014 Quick update. She just called the local VW Main Dealers for a more accurate estimate now she has a more accurate assessment of the suspected fault and was quoted in the region of £800 - £900 !!!!!!!!! The receptionist did comment VW may contribute to the part and labours as they had a car in recently with a similar fault Told her to ring an independent.............get an estimate off them Quote Link to comment Share on other sites More sharing options...
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