A Different Aux Heater Question

[mk1matt]

Fitted a new glow plug at the weekend and now the aux/booster heater fires up nicely in this cold weather. However, it seems to stay on even after the car has been driven for about 30 minutes, and is fully up to temperature. When my wife got home tonight the blower was still running when she got home. I must admit I didn't check the exhaust, as it was dark.

 

Does this sound right? I thought it was supposed to switch off when the coolant temp hit 75 or so.

 

Thinking about it, the faults that were showing last time were 5x "open circuit on glow plug", so could the continuous running have burnt out the plug? I'd rather not have to replace it again!

 

Any ideas what I can check/test? I've got access to a friend with Vag-Com.

 

Thanks,

Matt

[gregers]

funnily enough my mk2 does this too,i thought that maybe if you have all the fans on then perhaps thats reason why it keeps going??and thats with my temp gauge showing 90

be good to see if other peeps does the same?

[Mirez]

funnily enough my mk2 does this too,i thought that maybe if you have all the fans on then perhaps thats reason why it keeps going??and thats with my temp gauge showing 90

be good to see if other peeps does the same?

 

Yup, both mine have done this although they vary. It occationally turns off and then restarts later in the journey as well.

[gregers]

cheers mirez,that exactly what mines doing,so i guess if you dont use the heater/blowers at all on any journey then i suspect the booster will turn off fairly soonest and stay off,proves how efficent the engines are then?booster kicks in to maintain heat for the occupants and the engine.

 

you know what that means????

im only going to get about 39-45 mpg now :)

[mk1matt]

It's a mk2 by the way - don't let the username fool you!

 

Glad to hear other people have the same thing happening. I thought it had something wrong.

[gregers]

It's a mk2 by the way - don't let the username fool you!

 

Glad to hear other people have the same thing happening. I thought it had something wrong.

 

oops :)

 

yep looks like its running all ok.

[George106]

cheers mirez,that exactly what mines doing,so i guess if you dont use the heater/blowers at all on any journey then i suspect the booster will turn off fairly soonest and stay off,proves how efficent the engines are then?booster kicks in to maintain heat for the occupants and the engine.

 

you know what that means????

im only going to get about 39-45 mpg now :)

 

 

Mine is "working" very similar. Also is on for the most of the time and even when CC is set on HI, still only partially hot air comes out. What I don't understand, why is working for some time when engine is switched off and car locked - smokes. And last bit, when I stop at traffic lights, heater often stops and restart when moving again.

 

Regarding consumption I get around 30mpg in the town and 37-40 on motorway in comparison to 43-45mpg in hot weather. Does the computer register heater consumption and engine altogether or just the engine?

[Bigjeeze]

Both mine do this - it's perfectly normal - I think it comes on and off to maintain the temperature - obviously once you start moving the temp will drop so I think it stays on most of the time. As to extra consumption - I don't have such a big difference on winter/summer - probably drops by 4-6 mpg in the winter - so average consumption is around 40mpg winter 44-6 in the summer. Depends how you drive.

[Michael_H]

Both mine do this - it's perfectly normal - I think it comes on and off to maintain the temperature - obviously once you start moving the temp will drop so I think it stays on most of the time. As to extra consumption - I don't have such a big difference on winter/summer - probably drops by 4-6 mpg in the winter - so average consumption is around 40mpg winter 44-6 in the summer. Depends how you drive.

 

By the way, I found online on Eberspacher's web site, the manufacturer of these units, that they have to be serviced yearly. What was Ford/Seat/Wolkswagen plan when they installed these units in the vehicles? I am going this week to have mine serviced by an Eberspacher's franchised dealer. More knowledgeable and experienced with them than any dealer would be, and no need to replace the unit as Ford would have you do it.

Eberspacher themselves are not so innocent either: the glow pin when supplied by them cost some

Heater_dealer_list_Aug_09_list.pdf