Peugeot 406 (1996 - 1998) - 1998 1.8 heater controls

Honest John Back Room » Technical matters
View Threaded
Thu 31 Jul 2008 14:15
1998 1.8 heater controls - gordo117
the heater system will only give cold air choose where i position the temp control knob
the engine temp is up to normal with no coolant lose.

what do you think is the cause, and how do you get to the control mechanism/valve, is controlled by cables, vacuum or what

your help in this matter would be very much appreciated
Reply | Report as offensive | Link
Sun 3 Aug 2008 12:14
1998 1.8 heater controls - gordo117
S self Q !

Edited by Pugugly on 03/08/2008 at 13:37

Reply | Report as offensive | Link
Sun 3 Aug 2008 13:02
1998 1.8 heater controls - oldnotbold
Two possibles:

Air lock in the heater matrix - has the coolant been changed recently?

Failure of the servos that control the air flaps on the heater. All hidden behind the dash/glovebox, and a pain to remove.

My 405 is the other way round - heater on all the time. Roll on winter!

Edited by oldnotbold on 03/08/2008 at 13:03

Reply | Report as offensive | Link
Mon 4 Aug 2008 12:06
1998 1.8 heater controls - gordo117
thanks for your efforts on this problem, no air lock is apparent suspect the flap arrangement. What actually goes wrong, and how do you get into the area, is it a complete dash out job, or can you semi strip to gain access


Thanks Gordon
Reply | Report as offensive | Link

Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.

The Good Garage Guide