V70: Engine - "Whooshing" noise trying to invoke turbo and P00BD code

DaveMatthews · Jun 16th, 2014, 00:51

Hi folks,

Driving along normally today in my MY2009 D5 auto when suddenly the "Engine system service required" warning message came up and the car appeared to go into limp-home mode. I say "appeared" because acceleration was severely curtailed and there was a distinct lack of power when tackling hills...

It seems to me that the Hi-Pressure Turbo isn't kicking in - and I can hear a "whoosh" of air (a bit like somebody pursing their lips and exhaling) when I press the throttle to invoke it...

Hooking up my fault code reader, I get a "P00BD" error code, which apparently means "Mass or Volume Air Flow 'A' Circuit Range/Performance - Air Flow Too High", although that's just a generic OBD-II description...

When I got home I cleared the fault code, took the car out again and it drove normally for a couple of miles but then the error message and "whooshing" noise reappeared...

Other than that, everything else appears normal.

So my guess is that the Mass Air Flow has developed a fault (or is simply clogged up?) which has led to a turbo pipe splitting. Does that sound feasible?

--

Many thanks in advance!

Dave

Jun 16th, 2014, 00:51	#1
DaveMatthews New Member Last Online: May 18th, 2024 14:45 Join Date: May 2010 Location: Lancaster	"Whooshing" noise trying to invoke turbo and P00BD code Hi folks, Driving along normally today in my MY2009 D5 auto when suddenly the "Engine system service required" warning message came up and the car appeared to go into limp-home mode. I say "appeared" because acceleration was severely curtailed and there was a distinct lack of power when tackling hills... It seems to me that the Hi-Pressure Turbo isn't kicking in - and I can hear a "whoosh" of air (a bit like somebody pursing their lips and exhaling) when I press the throttle to invoke it... Hooking up my fault code reader, I get a "P00BD" error code, which apparently means "Mass or Volume Air Flow 'A' Circuit Range/Performance - Air Flow Too High", although that's just a generic OBD-II description... When I got home I cleared the fault code, took the car out again and it drove normally for a couple of miles but then the error message and "whooshing" noise reappeared... Other than that, everything else appears normal. So my guess is that the Mass Air Flow has developed a fault (or is simply clogged up?) which has led to a turbo pipe splitting. Does that sound feasible? -- Many thanks in advance! Dave

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