Citroen C8 webasto Option

[Hysiu11]

Hello Everyone.

I have a Citroen C8 [2007] with oryginal engine auxiliary heater - webasto thermo top c.
heater wont start automatycly with engine start, i doo test in lexia and diagbox and webasto work fine, no one know why wont start. maby some one unplug something or disabled but where?

Please help.

[GiveMeABreak]

I can't advise on these units, sorry, but are there any fault codes present? Diagbox should provide a fault code if any of the following below. Unfortunately there is no further info on the cause, only the description:

Permanent Fault Codes	Intermittent Fault Codes	Description of Fault Code
1001	2001	ECU fault: Not characterised
1002	2002	Fault: no flame during restarting: Not characterised
1003	2003	Flame cut-off fault: Not characterised
1004	2004	Fault: no flame during first operation: Not characterised
1005	2005	Fault: additional burner locked on: Not characterised
1006	2006	Fault: flame without fuel flow: Not characterised
1008	2008	Overheating sensor fault: Open circuit, short circuit to positive, short circuit to earth
1009	2009	Temperature sensor fault: Short circuit to earth
1010	2010	Temperature sensor fault: Open circuit or short circuit to the plus
1011	2011	Fault: combustion air turbine: Mechanical blockage
1012	2012	Fault: combustion air turbine malfunction: Not characterised
1013	2013	Fault: flame cuts off then reappears: Undetermined
1014	2014	Glow trigger fault: Resistance value not constant: Not characterised
1015	2015	Fault: glow trigger resistance value: Value received incorrect
1608	2608	Metering pump fault: Short circuit to earth
1609	2609	Fault: combustion air turbine: Short circuit to earth
160A	260A	Glow trigger fault: Short circuit to earth
160B	260B	Coolant pump fault: Short circuit to earth
160C	260C	Vehicle blower fault: Short circuit to earth
1818	2818	Metering pump fault: Open circuit or short circuit to the plus
1819	2819	Fault: combustion air turbine: Open circuit or short circuit to the plus
181A	281A	Glow trigger fault: Open circuit or short circuit to the plus
181B	281B	Coolant pump fault: Open circuit or short circuit to the plus
181E	281E	ECU earth supply fault: Not characterised
1A05	2A05	Battery voltage fault: Undervoltage
1C04	2C04	Battery voltage fault: Excess voltage
1C07	2C07	Overheating fault: Not characterised

[wheeler]

If i remember right on these you cant manually switch them on, they trigger themselves depending on how low temperature is.

[Hysiu11]

no issue/ problem detected with diagbox, in my contry now i 0Celcius,

webasto test in diagbox - perfectly work .

[Vic Evans]

I've got one of these on my 2000 model Pug 806 bought about 23 years ago. I didn't know what it was until I heard it whistling for about 5 mins on switch off when temperature at or below about 10 c. Peugeot dealer said this was normal but I don't think it's ever 'fired up' except for one occasion when 'smoke' was coming from under the engine & I found it was the exhaust from the thing which must have started.
Don't need it here in sunny Brittany so I just ignore the whistling now which I assume is the combustion air/ purge fan. Maybe one day I'll find out how to unplug the thing.

[chris2005]

Hi

Did you find a solution with your webasto problem?

I have the same problem which happened after low voltage due to alternator failure

Will work OK through diagbox but wont work automatically, outside temp -4

I have tried disconnecting fuses and resetting BSI but still have the same problem

[Hysiu11]

no. still dont work. what abaut yours?