Audi a3 Haldex filter check

[PatRaczek]

I have a 2015 audi a3 and I just got my haldex service done recently because I have an AudiCare package. But I heard that when Audi changes the oil they don’t check the filter or “screen” I’ve been noticing that off launches or spirited starts my front wheels spin a lot. Is it ok to use the same oil that I drain back into the system after I check the filter? I mean it is pretty fresh.


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[ChrisKasch]

id suggest priming the pump, theres a chance they did not do it.

[PatRaczek]

I need OBDeleven to do that right? I’m getting one next week so I’ll try it out and let you know


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[MikTip]

id suggest priming the pump, theres a chance they did not do it.

Why would "they" do it (priming pump) in the first place?

If you read the dealership factory repair manual...for changing the oil in the Haldex...they simply change the oil.

The removal of the pump and look at the screen is not a dealership requirement for haldex oil change. As their manual does not tell them to pull the pump to change the oil.

Its an enthusiast or DIY persons doing.

If you look at and understand the Haldex pump...its screen is totally submerged in a pool of oil.

So called Priming it happens when your driving when its activated cause again its in a pool of oil.

The dealership changing the the haldex oil has zero negative effects on the pump.

Now in the dealerships factory repair manual when they find a code for an suspected issue with the pump and "change" the pump or "replace" the haldex pump then they prime/ops check it to make sure it works and to clear the code.

Not a requirement or needed when simply changing the haldex oil.

When a person takes their car to the dealership and does not state they think there's an issue with the haldex...and asks for a haldex oil change...thats all your going to get!

You need to tell the service manager at dealer service you think something is wrong with the haldex due to excessive wheel spin! So they plug in their OBD and look to see if there are any codes on the haldex. Which they wont do for a haldex oil change.

They dealerships wont assume or seek out bad parts without their OBD reader finding a code.

[MikTip]

id suggest priming the pump, theres a chance they did not do it.

You need an OBD reader that will read the Haldex module and look for any codes as it sounds like your Haldex pump may not be working.

https://www.audizine.com/forum/showt...1#post14810233

[MikTip]

VW and Audi change the Haldex oil change requirement to 3 years. Reguardless of miles.

This is based on normal use.

Enthusiasts who "race" or launch their cars think they will save the Haldex by changing the oil more often....

[ChrisKasch]

about 6 months ago i bought a 2016 s3, the dealership had changed the oil in the haldex. when i went to test my 0-60, i found i had crazy wheel spin. i had called the dealership about it, they had a 3 month waiting period before they could look at it. going into the haldex setting on obd11 you can prime the pump. fixed my issue. so either that car didnt have full awd until i bought it, or some changes were done but not listed even though i have a full report on all services done to the car.

[ChrisKasch]

i used obd11 for when i did it to my s3, it fixed my issue and i hope its an easy fix for you.

[PatRaczek]

Thanks for the useful advice guys. If the haldex oil is fresh you think I could use the same oil to put back in when I check the pump screen or should I spend the money on a fresh bottle of oil? I’ll try priming it with obdeleven first and if it doesn’t work I’ll check the pump. Again thanks for the help. I’m pretty new to DIY things myself so all of this really helps me out


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[MikTip]

about 6 months ago i bought a 2016 s3, the dealership had changed the oil in the haldex. when i went to test my 0-60, i found i had crazy wheel spin. i had called the dealership about it, they had a 3 month waiting period before they could look at it. going into the haldex setting on obd11 you can prime the pump. fixed my issue. so either that car didnt have full awd until i bought it, or some changes were done but not listed even though i have a full report on all services done to the car.

An inop haldex pump will pop up a diagnostic trouble code that can be seen with an OBD reader that is capable of reading codes from the Haldex module.

Dealership all over the world will use their OBD readers and see if there is a code. This points them to exactly what's wrong with the car. Vise guessing or assuming.

Your issue is totally assumed and totally unknown exactly what was wrong...the pump? Its controller? Electrical issue? Other...

Priming the pump via OBD 11 fixed your issue.

Prior to this the car had its Haldex oil changed at the dealership.

My guess is they may have updated electronically the haldex controller and failed to ops/function check it after????

Without specific codes from the haldex controller...its all guessing.

[MikTip]

I have personally change my haldex oil several times. Each time I removed the pump to inspect its screen.

Never disconnect its electrical connectors.

After new oil and reinstalled haldex pump my S3 drove without any issues.

Not sure what individual dealership mechanics are doing to cause the pump to not work...but I have heard about it quite a few times....

[ChrisKasch]

I have no idea what they do, but at that time i had started to price out a controller and a pump. you can also use obd11 to view how much the pump is working. im not stating my answer is the right one, but for 5 mins of time it could be the answer.

[ChrisKasch]

also, i wasnt getting any codes while mine was having its issue which was causing it to be a pain trying to figure out the problem.

[PatRaczek]

So to sum it all up.

I should check the codes on the haldex system. If none are apparent, I should try to prime the pump to see if that’s just what it’s missing, if that doesn’t work I should take off the pump and check the filter when I service haldex myself. If the filter is already cleaned I’m guessing it’s safe to assume it’s time for a new pump.

Does this sound about right?


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[MikTip]

also, i wasnt getting any codes while mine was having its issue which was causing it to be a pain trying to figure out the problem.

I'm not sure all versions of OBD 11 can read the Haldex module and see the codes...

[ChrisKasch]

not sure, but i could view the activity of the haldex which pushed me to prime it.

[PatRaczek]

Hey guys so just an update, I ended up getting an OBD eleven and got a haldex mechanical malfunction code, I primed the pump with obdeleven and after that the pump went back to normal and have my awd again, the code is also no longer there. It’s weird why this happens but it worked for me and saved me some money so thanks!


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[MikTip]

Hey guys so just an update, I ended up getting an OBD eleven and got a haldex mechanical malfunction code, I primed the pump with obdeleven and after that the pump went back to normal and have my awd again, the code is also no longer there. It’s weird why this happens but it worked for me and saved me some money so thanks!


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Nice!

Not sure what dealership mechanics are doing that disables the pump...

Glad to hear you fixed it.

[ChrisKasch]

im glad my suggestion worked, enjoy the awd again :)