Knuckle Posted November 16, 2013 Report Share Posted November 16, 2013 My dad is having trouble with his 2005 e90 320d heating, The fan works fine it's just the heating Recommended checking the temp (no dial) using hidden menu and the thermostat was clearly faulty, so that's been done, but whilst this has restored 90degree running temp it didn't fix the heating. There are no blockages apparently, the pipes/matrix gets boiling hot , but still no warmth So... Did a bit of digging and apparently the climate panel could affect it and they commonly fail. So tried a second (presumed working!!) but again hasn't resolved Any ideas what on earth this could be ???????? Quote Link to comment Share on other sites More sharing options...
Jim 320d Posted November 16, 2013 Report Share Posted November 16, 2013 Did the lack of heat coming out of the vents coincide with the thermostat being changed? Quote Link to comment Share on other sites More sharing options...
Knuckle Posted November 16, 2013 Author Report Share Posted November 16, 2013 No it's what prompted us to check if the thermostat was faulty but it wasn't working prior to changing the thermostat Quote Link to comment Share on other sites More sharing options...
mit Posted November 16, 2013 Report Share Posted November 16, 2013 Get a diagnostic. Quote Link to comment Share on other sites More sharing options...
Knuckle Posted November 17, 2013 Author Report Share Posted November 17, 2013 Get a diagnostic. Hadn't thought of that..... No errors, it has been in and out of a garage for the past 3 days Quote Link to comment Share on other sites More sharing options...
Knuckle Posted November 17, 2013 Author Report Share Posted November 17, 2013 Mechanic said this part may be a culprit - any idea what it is ? (With the brown wires) Quote Link to comment Share on other sites More sharing options...
mit Posted November 18, 2013 Report Share Posted November 18, 2013 tbh you're better off asking this on e90post Quote Link to comment Share on other sites More sharing options...
Knuckle Posted November 21, 2013 Author Report Share Posted November 21, 2013 Turned out to be an auxiliary heater, not cheap! Diesels have a second heat source apparently as they run cooler, Don't know if it applies to e46 but thought it might be helpful Quote Link to comment Share on other sites More sharing options...
the_driller Posted March 31, 2014 Report Share Posted March 31, 2014 I could drill some holes in the bulkhead next to the exhaust manifold for a permanent solution? PM if interested the_driller Quote Link to comment Share on other sites More sharing options...
