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Exhaust Gas Warning Lamp

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gregozedobe View Drop Down
Vanorak
Vanorak


Joined: 22 Dec 06
Location: Canberra, Oz
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gregozedobe Quote  Post ReplyReply Direct Link To This Post Topic: Exhaust Gas Warning Lamp
    Posted: 22 Jan 10 at 10:59
What is it ?  The yellow pictogram outline of an engine that stays lit up all the time (if it is continually flashing that indicates a different error).
 
What does it mean ?  According to my owner's manual it means there is someting wrong with the "quality" of the exhaust gases.
 
Other symptoms ?  On mine it ran really roughly just after starting once.  It also seemed less torquey from 1,400 to 1,800rpm, at 1,800rpm it was a bit like a light switch had been flicked "ON" and away it went wih normal power at those revs and higher.
 
What was the fix ?  My dealer replaced faulty exhaust pressure sensor and forced a DPF regeneration (under warranty).
 
Did it fix it ?  Seems to have (time will tell)
 
My engine is a late Nov 2006 build BPC 174hp 5 cyl R5 TDI with a DPF.  It had done 53,000Km of mostly highway driving.
 
 
Has this happened to anyone else ?
ELVIS: "apply accuracy/brevity/clarity rule before you put ones fingers near the keyboard."

2006 VW T5.0 LWB van 2.5 TDI 174hp manual(white)
2008 Skoda Octavia RS Wagon 2.0 TFSI 197hp manual(yellow)
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CLONKY View Drop Down
Yardie
Yardie


Joined: 23 Jan 06
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CLONKY Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 10 at 14:14
That sounds like a partially blocked DPF. If the 'forced regeneration' they administered is the same as other makes,it involves running the engine flat out for a period of time,so its probably as well you wern't there to watch.
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T5 TDI View Drop Down
Vanorak
Vanorak
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Post Options Post Options   Thanks (0) Thanks(0)   Quote T5 TDI Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 10 at 14:28
They do via diagnostics and light load driving.  I haven't ever had to do it so I only know what I've read.  I think there have been problems with the exhaust pressure sensors and a modified one is fitted.  The regen is probably done to make sure the ECU and the sensor are both reset and singing from the same hymn sheet.  Big smile 
 
 
The bit about the car 'burning' is a bit scary. LOL


Edited by T5 TDI - 22 Jan 10 at 14:31

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TwoFish View Drop Down
Yardie
Yardie


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Post Options Post Options   Thanks (0) Thanks(0)   Quote TwoFish Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jan 10 at 15:09
Yep. Had the same (see here). Sensor replaced and all fine since.
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gregozedobe View Drop Down
Vanorak
Vanorak


Joined: 22 Dec 06
Location: Canberra, Oz
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gregozedobe Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jan 10 at 09:55
Thanks for the responses guys.  I did do a search before I posted, honestly (and with "any date" selected too) Embarrassed
 
Did any of you notice a reduction in power under 1,800 rpm at the time ?  Or am I the only "Miss Daisy" driver on here ?
ELVIS: "apply accuracy/brevity/clarity rule before you put ones fingers near the keyboard."

2006 VW T5.0 LWB van 2.5 TDI 174hp manual(white)
2008 Skoda Octavia RS Wagon 2.0 TFSI 197hp manual(yellow)
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