The ultimate oil pressure guide for the TFSI 2.0 EA113
TFSI 2.0 EA113 Oil pressure – Part 4
continuation of troubleshooting the oil pump of the TFSI 2.0 EA113
All right, we are back. Let’s start out where we left off. The oil pressure regulating system. So far we have learned about the different issues associated with it.
- Wear in the bore causing leakage
- Wear in the bore creating a ledge for the piston to get stuck upon
- Debris making the piston stick
- Clogged up oil suction pipe forcing the piston to open
So what can we do to fix or prevent this? We have a solution. The Wasa oil pressure fix. For many years we have fixed this problem for customers in Sweden, using a rather primitive solution. Not very scientific but absolutely good enough to get the cars up and running again. It was only when we started thinking about going worldwide with this, that we scrapped the old design and started working on a new one.
The goal this time around was to fix all of the above mentioned problems at once. And we did.
The new regulating valve uses materials that work together in a way to reduce the risk of debris getting stuck in it’s mating surfaces. The positioning of the ports are no longer forcing any angular forces to the piston and a clogged pickup won’t open the ports.
More about this nice little oil pressure fix can soon be read on the dedicated page. Meanwhile here is a link to the product page.
The oil pump itself
As you may recall I stated in an earlier part, that the oil pump itself seldom fails. This is true but while you’re down there it of course doesn’t hurt to check it. We have found that most damage tends to be found in the pump cover / lid. Although the pump can take a lot of damage before causing issues with the pressure, the lid can very easily be machined. Just to get that little extra peace of mind. The rotors of the pump often show signs of wear, especially after chain failures, but it rarely affects the oil pressure enough to be noticed. If you feel nervous about it you’re welcome to sen us pictures and we can help you assess the situation.
Coming up next
The previous part was a very long one. This compensates by being very short.
In the next part we will take a look at some bearing as well as learning something about piston cooling jets. Not only will we talk about oil pressure in that part, but we’ll also touch a subject well known to TFSI owners. The oil consumption. See you all then i hope!
Please continue this series. Highly appreciated!
Thank you! I will write a part whenever I get the time. Hopefully the next one will be within the next two weeks.
/Hannes
Hannes
Nice work keep all the fixes coming in.
Very nice information!
I have a question, did you eliminate the movement of the valve with this piece?
Hi Robinson,
The valve still moves, but is no longer subject to the side forces from the ports, which accelerates wear in the OEM.
I’ve got a B7 A4 that just started showing the Low Oil Pressure. I’m so glad I found this site! I don’t have a lift so I don’t want to be crawling under my car for the foreseeable future while I repair this problem so I’m thinking about removing the motor and doing it from a stand. Thoughts, tips, advice?
Hi Michael,
I’m glad you like the blog. Removing the engine will always let you do a better overall job. If you are doing it make sure to replace all four of the piston cooling jets, as you can only access 3 without removing the engine and they do affect your oil pressure at idle.
Best regards
Hannes
Hi, I have an Audi Q5 2.0 TDI (2013, motor code: CGLC). Theres is low oil pressure at idle, when the engine is hot. Oil switch and oil pump was already replaced, but the low oil pressure warning comes back after a while at idle. I suppose that it is the same problem, that you started to write about. Please send me some suggestion, because this problem makes me crazy.
Hi Tamas,
Hard to say without more info but you could check the opening pressure of the piston squirters.
/Hannes
i have a 2008 a4 B7 with BWE 2.0 TFSI engine , after i overhaul engine , it’s begin always had oil pressure warning . only appearanced at hot when engine RPM around 1400-1800，disappear when above 2000RPM. \
could you please direct a possbile reason ?
Hi,my a4 b7 BWE 2.0TFSI engine appeared oil pressure low warning after overhaul.
only alert when engine RPM at 1400-1800，accelerate to 2000 RPM can stop it.
use castrol edge 5w-40 oil.
could you please give me some advice or try guess the possbile reason.
tks a lot.
Hi,
what was the reason for the overhaul and which parts have been replaced?
Usually the symptoms you describe are caused by a worn regulating system in combination with bad piston squirters.
/Hannes
overhaul because cylinder been strained. replaced piston \cylinder liner \crankshaft bearing
only reasmbly the oil ragulating system.
so can i only replace the new piston squirters?
Hi,
sorry for the late reply to this, I didn’t see your message before now. I would do both or at least measure the wear in the regulating system. To replace the squirters you will have to remove the module anyway. Also you will only to replace the first 3 squirters without removing the crankshaft, but that’s better than none.
/Hannes
thanks for your reply.
Strangely, the oil pressure alarm did not exist before I overhauled the engine.do you think if it is an assembly error or something I don’t know.
overhaul because cylinder been strained. replaced piston \cylinder liner \crankshaft bearing
only reasmbly the oil ragulating system.
so can i only replace the new piston squirters?