D5 PowerPulse pipe bursting

Hottieshigh · Aug 28th, 2019, 08:40

Anyone else having ongoing issues with D5 PowerPulse pipes bursting? Mine has burst twice on an 8 week old XC90…

Have done some research, and seems to be happening quite a bit to other users.

Our local dealer was rather casual about the whole thing when I quizzed them how and why; “We frequently replace these pipes. Generally the drivers don’t even notice the reduced performance, and we replace them when the cars come in for routine servicing.” I wonder how many underperforming D5 engines are out there?

The pipe is black rubber and about 20mm or ¾” diameter. It looks very similar to a hydraulic hose, with crimped metal fittings, also looking similar to the hydraulic type.

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The first burst was at a joint in the centre of the pipe directly below the engine where the pipe traverses from right to left, pretty much between the front wheels. (Sorry about the poor quality images – they are screen shots from the dealer health check video.) I think a under-car cover will have to be removed to see the pipe.

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The second burst was where the pipe terminates at the exhaust manifold end, and is easily visible by lifting the bonnet.

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Anyone know why these pipes keep bursting? Seems to me it is not necessarily the pipe itself, but may be the compressor ‘over pumping’ or some other control failure etc. The pipe could be the symptom, not the cause. Seems the dealers keep fitting new pipes without finding the route cause…

Aug 28th, 2019, 08:40	#1
Hottieshigh New Member Last Online: Oct 16th, 2019 08:38 Join Date: Aug 2019 Location: Cambridge	D5 PowerPulse pipe bursting Anyone else having ongoing issues with D5 PowerPulse pipes bursting? Mine has burst twice on an 8 week old XC90… Have done some research, and seems to be happening quite a bit to other users. Our local dealer was rather casual about the whole thing when I quizzed them how and why; “We frequently replace these pipes. Generally the drivers don’t even notice the reduced performance, and we replace them when the cars come in for routine servicing.” I wonder how many underperforming D5 engines are out there? The pipe is black rubber and about 20mm or ¾” diameter. It looks very similar to a hydraulic hose, with crimped metal fittings, also looking similar to the hydraulic type. 20190828_082947_resized.jpg The first burst was at a joint in the centre of the pipe directly below the engine where the pipe traverses from right to left, pretty much between the front wheels. (Sorry about the poor quality images – they are screen shots from the dealer health check video.) I think a under-car cover will have to be removed to see the pipe. Capture 2.JPG Capture.JPG The second burst was where the pipe terminates at the exhaust manifold end, and is easily visible by lifting the bonnet. 20190822_173239_resized.jpg 20190822_173248_resized.jpg Anyone know why these pipes keep bursting? Seems to me it is not necessarily the pipe itself, but may be the compressor ‘over pumping’ or some other control failure etc. The pipe could be the symptom, not the cause. Seems the dealers keep fitting new pipes without finding the route cause…

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