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Discussion Starter #42
A17-10191.png
Thanx for quick reply. Are you talking about the main oil strainer or some strainer in the lower part of the engine?
Here is a picture showing the strainer and balance shaft
The strainer is item 10
 

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Hello a8 Tech! I've been reading your posts as I found my way here trying to find out why my 2004 A4 Quattro is experiencing the same problem with the low oil pressure light, (car runs well, but beeping is annoying!!), anyhow, I am leaving the car off at the mechanic's this evening and I have printed your suggestions, I know it will be a huge bank buster to have the sub-frame removed to get to the oil area, hopefully there will be something he can do so I can avoid that major cost. Too bad Audi is not fixing these problems.

Thanks a bunch.
 

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The more I read the more I am sorry I bought the A4...my fault though, I should have done my homework first :( I got the bad news from my mechanic this morning he has to drop the subframe, $3500!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Obviously the car will sit now and payments will have to be made...
 

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Discussion Starter #46 (Edited)
Hello Airlores
I have removed the legal law because I do not wish this thread to become a complaint thread.
The purpose is to help and explain how and what to do to repair the fault.
The labour quote you have been given is unbelievable as the labour time to remove and install the sump is 3 hours, so if its a case of removing to inspect then its fair to say that 1 and a half hours is sufficient which in the uk would average around £60 to £90 per hour.
I advise your chosen workshop refer to elsa win labour times or take the vehicle to a trustworthy workshop

I could fly out to you and fix it for less lol
 

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a8 Tech, thank you for the heads up, you are true, it should not be a B*** session, merely using the forum to help fix our cars.

On another note, my mechanic pulled the oil cover off and cleaned the sump and used some cleaning solution for the oil line and turbo and found a ton of sludge he said he cleaned off, the oil pump is working perfectly but he said that Audi in Northern Cali wants $3500 for everything and he's hoping to save me money. We changed the oil last month and he said it appeared the oil had never been changed, he upgraded the oil to 5/40 instead of 5/30.

I would appreciate your insight...

Thanks :)
 

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Discussion Starter #48
Sounds good to me.
 

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Hi A8 Tech
Just read through this thread, thank you all very helpful!

I'm looking to get a A4 B6 1.8T, which will of been on LL servicing, i'm planning on have the sump removed and pick up replaced immediately as a precaution,
but i'm after some advise on if i can check for sludge when i go and look at a vehicle.
Is it possible to spot traces through the filler cap?
also i have Vag-Com and tried out the 17 instruments, with block 01 and 03 on my Seat Leon, for the oil pressure i just got a 'OK' rather than a numerical figure, i guess this would just say 'No' and the oil warning light would be on if the pressure was low?
Sorry for all the questions! would really appreciate any extra help!!
Thanks
 

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Discussion Starter #50
vag com reading ok means oil pressure is fine so that's good

check around the inside of the oil filler cap for dirt and feel the breather pipes at the rear of the rocker cover, if they are rock hard then its a sign they are blocked with carbon.

with the engine running remover the filler cap, if it is tight then there is a vacuum in the engine (blockage)

if you replace the oil pump make sure you remove the breather pipes and fully clean them to remove the carbon build up which causes the blockages at the strainer


check for light blue smoke from the exhaust which indicates oil consumption from possible turbo wear brought on by oil pressure drop.
 

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Thanks A8 Tech for that run down of what to look for, it will be very helpful when going to look at 1.8T's. Should be on the forum often if i can find a good A4, thanks Rep added!!
 

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I was on my way home down the motorway last night when the oil pressure light came on,i stopped and checked oil levels etc but the car was running perfectly.I decided to carry on home as i thought it was a faulty sensor problem.When i got near home the engine became noisy (rattly).I have just started the engine the morning after and it is still noisy (rattly),have i done serious damage to the engine or is this something easily repaired.I would appreciate any advice or input
kind regards
Andrew

I seem to be having the same problem, please let me know what you came up with. Thank you
 

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Oil light came on ours today. Level was fine, assumed it was a faulty sensor til I started looking around online and found this thread and other info.
 

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Hi, I'm very keen on getting this precaution job taken care of on my 2004 A4 1.8T Cab, which I've owned since it was almost new (it only had 9,000miles on the clock when i picked it up). I've only ever used Castrol Syntec SAE5-40, as recommended and always done the oil changes on time.

Audi will charge me $125 per hr, so I'd probably be just shy of a grand... Or I could take it to a different mechanic for 1/2 the price and just hope they do a proper job?

Thing is I do not have the tools nor the experience to drop a subframe.. As much as I'd love to carry out this job myself, I'd probably make a right mess of things at best, or at worse kill myself as the 'sub frame' drops on me while I'm under it !!

So and this is aimed at any competent audi mechanic.. Would you say any competent mechanic could carry out this job? Or should I strictly leave it only for Audi to meddle, as they may miss certain little techinques that'll only come back and bite me on the ass a few months down the road.

Advice appreciated.
 

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Ours went away after a couple of days until today when we took a long trip. After about 200 miles it came on and went in and out a few times. It started after I ran it up to about 100 mph engaging the turbo. Mine is stock with no boost gauge but I'm sure it was close to full boost. On the way back it started doing it again after about 200 miles or so. At first, it would go away when I let of the gas but then stayed on constantly after about 50 more miles. No funny noises or odors though. I let it cool down about 30 minutes when we got back and then went to the grocery store. The light didn't come on while on the way there. On the way back, I got on it a little and then it came on. It was about a mile trip each way. I checked for the blue smoke, the hard breather tube, the oil cap being tight while running, and buildup under the cap. All were ok.
 

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I am new to the Audi world so please excuse any stupid questions. I found a 2003 A4 1.8T for sale in NC at a good price. So as with every car I buy I google searched it... And now im here.

My question to all of you! Should I steer away from the 1.8T? The seller states he has owned the car since new and all scheduled maintenance has been accomplished by Audi with receipts. I asked him about this issue and he said he has had no problems and Audi recalled all the cars to have them inspected and repaired. He also said the cars were shipped from the factory with non-synthetic oil and that was the cause of the problem.

So, should I just find an Audi with a 3.0? If I do buy this car can I expect it to have this issue even if I use the correct oil and change it on time? It has 77,000 miles on it now. Will it last for 77,000 more?

Please be honest, as stated...I really like the Audi line and am going to buy one. I just want to buy the right one.

Thanks
Chris.
 
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