I have done the sensor replacement and bingo!!! I went for a spin and the pressure on the gauge showed up to 0.8 bar which is about right for v70 T5.

The code is still there so I replacing the turbo boost pressure sensor today. Let you know later if is resolved.

It is the park brake light that's right but I disconnected the wire from the handbrake just to see if that is causing the trouble but still the same. The fluid level maybe the one. I check it out and let u know. Tx.

The code refers to the turbo boost pressure circuit range /performance. So ether the pressure sensor failing or the hoses leaking somewhere. I did a leak test on the turbo boost line and discovered a leak which I didn't expect. Now the pressure is a lot better than before. Only one thing I wondering...

It's a manual gearbox so I don't think that's it. But maybe the brake pads are worn and that's how is appearing. I will check the pads out and let you know.

When I press the brake I can hear little clicks near break pedal (like a relay does) and the (P) light on dashboard comes on. And is happening only few days. Anybody any ideas? Otherwise I can't feel different in braking.

Thanks DGM you the man.

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I don't have a stock boost gauge but there is a line coming out on top of the inlet manifold. Is that the one?

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Hi I've got a v70 2.4l turbo petrol engine and I buying a turbo boost gauge so i was wondering which line to attach to. Any advice? Tx.

I looked into that deeper and first it sound like the MAP sensor but most likely the turbo boost line leaking somewhere so I gonna try a leak test.
By the way anybody know what's the oem boost pressure should be?
I tried with obd2 and shows max 9.2 psi.