New repair kit for sludge!!
#21
sludge solutions
Seafoam will do the trick per the instructions. Use 5w40 synthetic and a Big Kahuna oil filter (NAPA) and change the oil every 5 to 7,000 and you'll be okay.
You might also want to send in a sample to Blackstone Labs to see what's going on inside the Audi beast.
Blackstone Labs
#23
I have a 2001 with only 83k mi. but had sat for three years without running. I did all the recommended steps for a car that has been sitting before you start it but then ran into the oil pressure due to sludge issue.
I did the 10 min tre
Ans fluid flush, at 2000 rpm, no load (aka in neutral parked) then put in synthetic and a k&n filter and she ran well for 3 months.
Then on the way home one night, low pressure, starved my turbo and frayed it
I then dropped the oil pan and did the clean out myself replacing the oil pickup with a oem dealer pickup ($38). Oil pressure issue is gone.
Also, if you have a rattle from the engine on start up until the oil pressure come up, that may be your cam timing chain due to the tensioner not getting pressure immediately.
Once I did this, the rattle From the tensioner went away.
I did the 10 min tre
Ans fluid flush, at 2000 rpm, no load (aka in neutral parked) then put in synthetic and a k&n filter and she ran well for 3 months.
Then on the way home one night, low pressure, starved my turbo and frayed it
I then dropped the oil pan and did the clean out myself replacing the oil pickup with a oem dealer pickup ($38). Oil pressure issue is gone.
Also, if you have a rattle from the engine on start up until the oil pressure come up, that may be your cam timing chain due to the tensioner not getting pressure immediately.
Once I did this, the rattle From the tensioner went away.
#25
Also, https://www.ecstuning.com/Audi-B5_A4...Engine/Filter/
See the large filters toward the end of the page. They work really well. I have also seen some where a 90 degree oil cooler replacement so an even larger filter can be used like a WIX 51333. If any one knows where to get one of these 90 degree oil coolers let me know. It would make a great kit.
This adds almost a quart of oil which solved the problem for me.
See the large filters toward the end of the page. They work really well. I have also seen some where a 90 degree oil cooler replacement so an even larger filter can be used like a WIX 51333. If any one knows where to get one of these 90 degree oil coolers let me know. It would make a great kit.
This adds almost a quart of oil which solved the problem for me.
#27
Which engine? The longitudinally-mounted (Audi or B5 Passat) 1.8T has far more sludging (actually coking) than any other engine, because of the undersized sump and hot-running turb.
#28
I just purchased my first Audi. Been a BMW guy for as long as I can remember having owned three 3 series. But this week I bought a 96 A4 with the 2.8L motor with 112,000 and am very happy with the way it drives. However, when my mechanic was looking it over he showed me the sludge issue and we are going to do a flush on it a couple times and use the solution you guys have been mentioning to break all of the sludge free. My question is what weight oil works best in this motor and whether you guys are using fully synthetic or just high mileage oil?
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