cleanability Posted June 27, 2014 Share Posted June 27, 2014 My 1999 A3 1.9 tdi struggles to start when engine has warmed up. I'm thinking cheapest immediate action would be change coolant sensor. Can anyone tell me exactly where it is? Thanks Chris Quote Link to comment Share on other sites More sharing options...
JohnnyEffin Posted July 12, 2014 Share Posted July 12, 2014 Wouldn't harm, Try bleeding the fuel system out too, might have a little airlock Quote Link to comment Share on other sites More sharing options...
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