This is for all I-DTEC owners, I had a rather long and and interesting argument with colleague at work.He love all things VW and his dad bought a I-DTEC Accord which refused to heat up the heater from a cold engine quickly. He said his over hyped VW heated the heater faster than the Honda, well he know I am a Honda fan and I know he is VW fan ,it like getting a vegetarian eat meat and stick to it . I told him the VW engine are not as efficient as the I-DTEC or I-CTDI engine they take a long time to heat up as they are very efficient they don't not waste any of the energy turning fuel into heat . Its a known fact older VW do burn fuel to warm up faster. So this guys dad waged war with Honda UK saying it a faulty car it got him no where as it is NOT a fault.. My explanation to him was At idle, it can take a long time for the engine coolant to warm up. The engine will get warmer quicker when driving when the engine is under load. The best method to warm up a Honda (proper car) is to set it at ‘AUTO’ function, and set the climate control temperature at 21 degrees which is room temperature. Why room temperature you ask? This will optimise settings to provide the quickest warm-up, it is as simple as that There is no need to change the temperature to ‘HI’. This will just prevent idle stop and blow a higher volume of colder air, initially making you colder rather than warmer!!! He just won't buy it he is brain washed in over-hyped German cars. Can all I-DTEC owners try this I can vouch your heating time will halved.