2.0T on life support
Posted by R8dividedby2@reddit | projectcar | View on Reddit | 17 comments
I’m looking to get some help diagnosing what needs to be done on my buddy’s 2007 Audi A4 with the 2.0T.
The first clip is when I first heard it running. He had me change the oil for him and i noticed the belt was in rough shape. The second clip is after changing both. It’s still very rough. I also recommended spark plugs and coils . He mentioned a shop doing the valve covers and injectors when he got the car. My guess is that intermittent hiss is the pcv? I plan to scan it asap as the check engine light and epc light are now on.
Just wanted to get an idea what I’m getting myself into. For reference I have a 2010 Jetta 2.5 and have the proper tools and patience for most jobs (with the right resources, currently rebuilding my brothers wrx).
pompino@reddit
These engines tick loudly as others have said. Imo change pcv, fill the cylinders from above with a strong engine flush solvent like berrymans b12 as per instructions, drop the oil pan and clean up the oil pickup as its almost certainly full of crud, new good oil and filter with some liquimoly ceratec, and change the belt if it's old.
That's the best bet of getting it going well.
pompino@reddit
To follow up my own comment. The oil burning issues from this era of 2.0 petrol VAG engines is predominantly due to the piston rings sticking, I think it's only in the last few years that lots of people are realising it's fixable with the b12.
The oil pickups on these block themselves up for fun, but you probably know that.
Unfortunately it seems a lot of these issues stem from engines getting the extended oil intervals early in their life. That said the above fixes are what I did to my ea113 tfsi and even at 120k miles it barely burns any oil and runs well, but the injector tick is still noticable.
R8dividedby2@reddit (OP)
Thank you, this is exactly what i was looking for. Im well aware of the injector tick. I know not having it scanned doesn’t help, but i was more looking for the common issues with these early 2.0t engines. Thank you for the call on the engine flush solvent, i might as well do that when i change coils and spark plugs.
pompino@reddit
No problem.
If you have the ea113 engine then they are a fantastic engine to drive in my opinion, but there's a few weak points to address. Given their age most of these have been figured out now.
As with anything make sure you get the best revisions of things like pcv and diverter valves.
Good luck!
Ok_Dog_4059@reddit
It sounds like Darth vader.
R8dividedby2@reddit (OP)
sunr1se79@reddit
Yeah mismatched coils are always a great sign lol. Being a penny pincher wity German engines is certainly a decision.
R8dividedby2@reddit (OP)
Yeah the previous owner obv tried to cut corners. Hopefully the new coils and plugs will make a difference at this point
sunr1se79@reddit
Idk man if you wanna stick with it more power to you but rest assured, that isn't the only place they skimped out. Has money pit written all over it, I wish you luck though.
R8dividedby2@reddit (OP)
At the very least it’ll help if he wants to make it someone else’s problem. I know these motors don’t last if they aren’t well taken care of, ill get it scanned and figure out what direction to go! Thank you!
sunr1se79@reddit
Such is the life of the average vq lol, a problem that's dumped onto some poor sap over and over until it inevitably rots is a scrapyard or gets turned into frosted flakes for the iron giant.
R8dividedby2@reddit (OP)
Yeah or it becomes a parts car
8N-QTTRO@reddit
You need to scan the engine before doing anything else. Also, half of what we're hearing in this video is just injector tick, which is entirely normal on these engines but sounds bad when the hood is open.
R8dividedby2@reddit (OP)
Thanks, ik injectors are loud. All i hear on my 07k. Was more curious about the intermittent hiss. I have a vcds but it’s out of vins so im getting another scanner this week.
Alpinab9@reddit
I would start with a new PCV valve.... inexpensive and easy.
cutchins@reddit
Posting the scan will enable people to give you some ideas. This video doesn't tell much of anything.
Only_Jury_8448@reddit
The top end sounds pretty loud, these 2.0T engines have issues with camshaft wear if you don't keep the right amount/quality of oil in them; the oil pump goes on these, too. If you have access to a scanner that can give you a live feed, you can see where the oil pressure is at.