TT (Mk1) Discussion Discussion forum for the Mk1 Audi TT Coupe & Roadster produced from 2000-2006

TT Cold Start Problem :(

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Old Dec 21, 2018 | 11:30 AM
  #1  
kinect360's Avatar
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Default TT Cold Start Problem :(

Hey everyone!

For the past week my TT Quattro hasn't been wanting to start with a cold engine. I don't know if its the weather (canada, below freezing now) or what, but I have no idea whats wrong with it. My first winter with it, new battery a month ago.

Take a look at the video I took of it (take a look at the boost gauge and rpms) :

It'll take at least 30 tries for it to want to finally hold rpms and not die. Its like every try it lasts on a little longer. Once I can get it started like at the end of the video, its fine to drive and drives normally. It'll start up normally as long as the engine is still warm (2-3hrs ~ after turning it off). It has a battery that is only a month old and the starter was replaced half a year ago, MAF Sensor has been cleaned and didn't make a difference either. Also, RPM gauge is off by about 400 rpm, it idles at 720 rpm.

Any ideas to why it wont start cold?
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Old Dec 21, 2018 | 06:29 PM
  #2  
Mister Bally's Avatar
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Tear or break in Charge pipe/ intercooler pipe or coupling boot.
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Old Dec 28, 2018 | 10:16 AM
  #3  
kinect360's Avatar
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It turned out to be the engine coolant temperature sensor but thanks anyways!
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