falz Posted March 6, 2016 Share Posted March 6, 2016 Hi, I tried looking in the forum but cant seem to find any other thread about this.. Soo recently my MB6's heater wont get hot anymore, the drivers side side vent gets kinda warmer, but it just stays cold in general.. anyone know what might cause this ? Engine temperature is normal, and gets warm in normal time, soo really have no idea what it is Quote Link to comment Share on other sites More sharing options...
Dave Posted March 6, 2016 Share Posted March 6, 2016 It could be the heater matrix, an airlock in the cooling system. Does the fan work on all speeds? Normally the poor heater would point to the cooling system, usually a faulty thermostat. Quote Link to comment Share on other sites More sharing options...
falz Posted March 6, 2016 Author Share Posted March 6, 2016 Yeah it works on all speeds, and thats what I would think aswell the fualty thermostat, but the engine temperature goes up like it should and stays at normal temperature so I really dont know what it could be Quote Link to comment Share on other sites More sharing options...
Dave Posted March 6, 2016 Share Posted March 6, 2016 Really strange one mate. I'd try a new thermostat as they're cheap anyways, see if that cures it. If not, my be more complicated to suss out. Quote Link to comment Share on other sites More sharing options...
KiNK43 Posted March 7, 2016 Share Posted March 7, 2016 Be worth checking heater valve on the hose going into bulkhead. Very primitive. Thin cable on a plaggy valve normally. Check the cable moves when turning dial an that valve opens as it should. 2 Quote Link to comment Share on other sites More sharing options...
Gel Posted March 7, 2016 Share Posted March 7, 2016 May also be beneficial to check your pollen filter and housing ducts for leaves etc. http://civic5.com/forum/files/file/15-diy-guide-no2-change-the-pollen-filter/ 2 Quote Link to comment Share on other sites More sharing options...
Dave Posted March 7, 2016 Share Posted March 7, 2016 10 hours ago, KiNK43 said: Be worth checking heater valve on the hose going into bulkhead. Very primitive. Thin cable on a plaggy valve normally. Check the cable moves when turning dial an that valve opens as it should. 6 hours ago, Gel said: May also be beneficial to check your pollen filter and housing ducts for leaves etc. http://civic5.com/forum/files/file/15-diy-guide-no2-change-the-pollen-filter/ @KiNK43 @Gel Superb answers chaps! hadn't even thought of that! I'd do both the above checks before messing with the thermostat mate. Most probably find it's one of those! Quote Link to comment Share on other sites More sharing options...
falz Posted March 8, 2016 Author Share Posted March 8, 2016 Wow didn't even think of checking the cable that goes to the valve, gonna do that asap Thanks for the answers guys 1 Quote Link to comment Share on other sites More sharing options...
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