Home > Technical (L405) > DPF full. Visit dealer. Limp mode. Engine light on. |
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DrRob Member Since: 16 Apr 2015 Location: Petersfield, Hampshire Posts: 4302 |
Either you have an intake leak (a few folks have had this) or your daily mileage is very low with stop start town driving. The dpf is rarely at fault itself. Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
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17th Jan 2020 7:33am |
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Macpaul Member Since: 26 Jul 2015 Location: SW Surrey Posts: 100 |
Had this the other day, albeit on. 4.4.
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17th Jan 2020 9:07am |
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GGDR Member Since: 26 Nov 2016 Location: London Posts: 3543 |
Light reading here:
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17th Jan 2020 9:23am |
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Dolphinboy Member Since: 07 Dec 2009 Location: Bristol Posts: 3156 |
As dr rob says. Excess or overly fast filling of dpf Could be plenum pipes leaking or cracked inlet/outlet manifold. Get a high pressure smoke test done
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17th Jan 2020 9:31am |
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Dolphinboy Member Since: 07 Dec 2009 Location: Bristol Posts: 3156 |
@Bg259.
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27th Jan 2020 2:26pm |
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Macpaul Member Since: 26 Jul 2015 Location: SW Surrey Posts: 100 |
During a regen the injectors squirt extra fuel, post detonation, into the combustion chamber (not the crankcase) and thus most of the extra squirt is sent downstream on the exhaust stroke into the DPF which is obviously already very hot.
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27th Jan 2020 3:05pm |
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Dolphinboy Member Since: 07 Dec 2009 Location: Bristol Posts: 3156 |
👍 |
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27th Jan 2020 3:32pm |
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Dolphinboy Member Since: 07 Dec 2009 Location: Bristol Posts: 3156 |
Right, just had my car back from the LR dealer having had a red dpf light come on and not able to clear - had rear sensor replaced. They couldn’t force regen the dpf (they got lower soot readings but the engine Ecu failed to recognise the lower reading and it remained in restricted power with red light on.)
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7th Feb 2020 8:10pm |
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