Heater heat at speed

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Author Message   James Seaman Experienced User Username: jseaman Post Number: 20 Registered: 12-2012 Posted on Saturday, 15 December, 2012 - 07:27:    I imagine this is a fault rather than a feature but at speed (>50mph) my heaters don't blow hot. Any ideas on a possible cause?   Paul Yorke Grand Master Username: paul_yorke Post Number: 902 Registered: 6-2006 Posted on Saturday, 15 December, 2012 - 08:40:    Have a look in the manual. Maybe the bulletins? There's something about no heat at standstill and at speed. Heater tap rebuild institutions for high speed problems. Auxiliary heater water pump for low speeds. Sent from my mobile . . please excuse the brevity. Regards, Paul Yorke.   James Seaman Experienced User Username: jseaman Post Number: 22 Registered: 12-2012 Posted on Saturday, 15 December, 2012 - 19:02:    Thanks Paul, I'll check out the 'heater tap' now. ..   James Feller Prolific User Username: james_feller Post Number: 252 Registered: 5-2008 Posted on Wednesday, 19 December, 2012 - 09:36:    Paul Yorke is probabaly stop on the money with this. I know a certain Grand Master had a similar issue with his 93 Conti R, that the heater with be ok at low speeds but on the motorway it would not need keep the cabin warm. I believe the heater tap or partial cease in the heater tap was the culprit.... But he is very busy with the appropriate way to roll out and put his car cover on....AMAZING! J