carnut1980 Posted October 24, 2023 Share Posted October 24, 2023 Hi all, my main cooling fan comes on when it likes, sometimes 30 seconds after running the car! Never overheats, temp gauge rises to the middle and stays there! My mechanic read the codes and said Coolant temp sensor no.2 shows no reading, and is U/S! I have bought both CTS anyway, PN 059919501a, the smaller one, and the other, PN 8170794RMP Where are these located, and are they easy to swap out? cheers Quote Link to comment Share on other sites More sharing options...
Steve Q Posted October 24, 2023 Share Posted October 24, 2023 Is it diesel? Could be the car doing a dpf regen. Quote Link to comment Share on other sites More sharing options...
carnut1980 Posted October 25, 2023 Author Share Posted October 25, 2023 no, its 2.0 TDI, as stated, car always gets motorway runs, and occasional fuel additive! Mechanic said CTS no. 2 has failed! Quote Link to comment Share on other sites More sharing options...
Steve Q Posted October 25, 2023 Share Posted October 25, 2023 No probs Quote Link to comment Share on other sites More sharing options...
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