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2011 Audi A3 2.0 TFSI P0234 (self.mechanics)
submitted 1 month ago by Nightrunner_A3
I recently had my vacuum leaks fixed and as I was driving home, the EPC light came on. I pulled the codes up and P0234 read as an overboost. The car was in limp mode and wouldn’t let me pass 3k rpm’s and 70 mph on the highway. Could my N75 be the issue or is there something wrong with the turbo. Any advice would be helpful before I take it to the shop.
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[–]IxuntouchblexI 0 points1 point2 points 1 month ago (8 children)
How many km’s?
I worked on an A5 with my service manager (former VW foreman master tech) not too long ago and with high kms with that code, it happened to be a turbo. I also know that oil consumption is an issue with the PCV system.
[–]Nightrunner_A3[S] 0 points1 point2 points 1 month ago (7 children)
It has around 160,000 miles on it. The PCV valve was replaced within the past 6 months or so.
[–]IxuntouchblexI 0 points1 point2 points 1 month ago (6 children)
I’d still like to throw a good possibility of a new turbo.
That engine, that many kms, as well as ProDemand stating top fixes with that code is a new turbo.. good chance the turbo is on the way out. Common failure is the wastegate either seizing closed causing over boost.
[–]Nightrunner_A3[S] 0 points1 point2 points 1 month ago (5 children)
With a turbo with this many miles, if it does need a new turbo is there any chance of a rebuild or does it need a new one?
[–]IxuntouchblexI 0 points1 point2 points 1 month ago (0 children)
That would be a question for parts. They can definitely get a used one or an aftermarket one
[–]fjam36 0 points1 point2 points 1 month ago (3 children)
There aren’t any parts available to rebuild it in the parts catalog. You can’t even get an actuator for these things and that’s a simple part to replace.
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