Booster Heater (vag-com Fault Code)

[buford_t_justice]

Hi All,

 

Thought I would do a quick VAG-COM due to the booster heater recently having a few goes at puffing the magic dragon.

 

Yesterday evening was the worst when we were stuck in a motorway jam for nearly an hour. The booster heater decided to play up and ended up smoking so much no car would travel behind me!! I had two cars go by letting me know that my car was smoking!!

 

So VAG-COM reports the following:

 

VAG-COM Version: Release 607.3-UD

 

Control Module Part Number: 7M3 815 071 A

Component and/or Version: HEIZG. B/D5W 0001

Software Coding:

Work Shop Code:

1 Fault Found:

01409 - Repeated Flame-Out

35-00 - -

 

 

My first thought before using VAG-COM was that the glowplug was on its way out but I don't see how this can cause a "flame out" message. Also, this unit was replaced completely by Ford about 15months ago.

 

Do these units have "magic eyes" and so maybe this is the fault here??

 

All comments and help much appreciated.

 

Hijacker.

[buford_t_justice]

My initial thoughts suggest that it may be the flame sensor that is at fault here. I'll need to dig out the multimeter and test it.

 

The blower works fine, the fuel metering pump is fine and there are no blockages in the exhaust as far as I can see. A faulty glow plug is ruled out as the problem here is the flame going out and not the other way round.

 

Anybody replaced the flame sensor before and do Ford sell it individually?

[NikpV]

I'm an Eberspacher service engineer

 

Could try pm'ing Jaroth