Major surgery occurring (on my D4)

**Fred Nerk** · 3rd October 2014, 03:51 PM

For several months and 6 visits to the dealer my car has had a version of the "restricted performance" issue. Several things related to the air supply have been replaced, pressure sensors, flow sensors etc. Smoke pressure tests and leaks repaired yet the problem persists.

And so now for a new intake manifold and two new turbos....I hope this fixes it.

I'm pleased I am not footing the bill.

**Bytemrk** · 3rd October 2014, 04:46 PM

What sort of symptoms have you been seeing Fred?

**rangieman** · 3rd October 2014, 05:14 PM

Originally Posted by Bytemrk

What sort of symptoms have you been seeing Fred?

Mmmm did you read the post restricted performance

Sorry could not resist

**Bytemrk** · 3rd October 2014, 05:25 PM

Originally Posted by rangieman

Mmmm did you read the post restricted performance

Sorry could not resist

When you stick your head out..there is always someone there to kick it

Originally Posted by Fred Nerk

For several months and 6 visits to the dealer my car has had a version of the "restricted performance" issue.

Having read the post, I was actually wondering about specifics... but I'm glad I gave you a laugh

**Graeme** · 3rd October 2014, 06:30 PM

Originally Posted by Bytemrk

Having read the post, I was actually wondering about specifics.

X2 - mine's had 2 versions of 1 reason (failed MAP sensor itself and MAP sensor wiring devoured by a rat) and the 2nd turbo isolation valve butterfly shaft jammed externally by grit, fixed with some manual exercising.

**LandyAndy** · 3rd October 2014, 08:15 PM

At least the restricted performance would be above a modified D2 output

I would like to know the symptoms.
Andrew

**Graeme** · 3rd October 2014, 08:31 PM

Originally Posted by LandyAndy

At least the restricted performance would be above a modified D2 output

Absolutely not! I've encountered 2 levels and the best was very casual with the worst barely safe to drive because it only crawled up hills at about 40 kph and had to be really coaxed to get over 60kph on flat ground.

**LandyAndy** · 3rd October 2014, 08:47 PM

Originally Posted by Graeme

Absolutely not! I've encountered 2 levels and the best was very casual with the worst barely safe to drive because it only crawled up hills at about 40 kph and had to be really coaxed to get over 60kph on flat ground.

So we are talking D1 TDi performance

Andrew

**shanegtr** · 4th October 2014, 12:48 AM

Still faster than a toyota 1HZ

**roamer** · 4th October 2014, 05:19 AM

Mine had a heap of restricted performances, that was heading to new turbos,

but then found it was the rubber bend on the air intake,(from inner guard to airbox) that under load was sucking closed.

The D3s had a perferated bend, but this D4 wasn't, and quite soft.

Might be worth a look

Good luck

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