What are the Weakpoints of the 4.0T Motor? | 034Motorsport FAQ

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[@DarinNederhoff]

3 years later I'll chime in with some first hand experience. The mech unit in trans and/or clutches can fail. The mech replacement can run you ~$4500. Fuel injector failure can be a big time expense as well, injectors being about $500 each and 28 hrs labor to remove the engine and do the job so there is another ~$5600 if you do only one injector. Do all 8 while you're in there and you're looking at 10k. Absurd. Valve springs, air suspension failures, active engine mount failures, etc. Audi = Actual Use Decimates Income on these if you get caught outside of warranty with one of these. I'll never go near a 4.0T again... unless roasting marshmellows over one that is on fire. ;-)

[@034motorsport]

Thanks Darin!

[@jacobwallis7170]

like the older subaru stis in the usdm market. they did the same exact thing.

[@durawins]

Don’t 2.0T’s have a screen in the cam bridge ? I always find those torn

[@034motorsport]

Yes, the Gen 1 EA888 motors did

[@TheAlexskittles]

@@034motorsportthe Gen2 has it as well. Ask me how I know 🥲

[@acewilums]

Thats is 😂 sign me up

[@gooden000]

Why when I remove the oil cap.. the engine struggling n sounds like it's sucking air?

[@javadshadzi4824]

Because it’s a closed system and you are letting in outside air into the system.

[@gooden000]

@javadshadzi4824 so there's some videos on CZcams demonstrating that.. then they say issue was fixed by changing some vacuum line

[@javadshadzi4824]

@@gooden000 you should never remove the oil cap while the engine is running.

[@mrbrowz1000101]

​@@javadshadzi4824yikes...that bad?