Oil sensor issue - oil sludge? A4 1.8T 2003
10-05-2010, 12:44 AM
#41
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Join Date: Nov 2008
Location: Regina, SK
Posts: 725
Re: Oil sensor issue - oil sludge? A4 1.8T 2003
Really? Are you going to put $8K in escrow to pay for his engine swap if it does? The fact of the matter is many 1.8Ts have died due to sludge, and his car is throwing an oil pressure light. Driving any modern vehicle - let a lone a turbo-charged, German one, known for sludge issues - when you know you are having oil-pressure issues is foolish at best.
Chances are nothing will happen tomorrow; but, when the stakes are this high, I'd be hedging my bets.
Chances are nothing will happen tomorrow; but, when the stakes are this high, I'd be hedging my bets.
10-05-2010, 01:13 AM
#42
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Join Date: Aug 2010
Location: Calgary
Posts: 531
Re: Oil sensor issue - oil sludge? A4 1.8T 2003
Really? Are you going to put $8K in escrow to pay for his engine swap if it does? The fact of the matter is many 1.8Ts have died due to sludge, and his car is throwing an oil pressure light. Driving any modern vehicle - let a lone a turbo-charged, German one, known for sludge issues - when you know you are having oil-pressure issues is foolish at best.
Chances are nothing will happen tomorrow; but, when the stakes are this high, I'd be hedging my bets.
Chances are nothing will happen tomorrow; but, when the stakes are this high, I'd be hedging my bets.
It looks like he forgot to change that oil for a year a couple of times.
Blow the picture to see the crust.
This crust is on his pistons and rings. How can this engine be damaged now?
You recommend scrubbing this engine from inside ... and than what when all this crust starts blowing his out valves? I say do it slowly with Castrol.
Last edited by adamstasiak; 10-05-2010 at 01:46 AM.
10-05-2010, 09:15 AM
#43
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Location: Vancouver
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Re: Oil sensor issue - oil sludge? A4 1.8T 2003
Engine flushes are a sticky point - you really should ever do it if you know what they're using, and that it's safe for your engine. I wouldn't assume that because an Audi dealer is doing them, that it's an engine flush safe for your engine. It's probably best to steer clear of a flush unless you're willing to put some time into learning about it. Manually cleaning everything will get rid of most of the problem, and will keep it from being flushed into any oil passages.
I probably should not have given that for advice, as I've never actually done an engine flush. That said, I have heard several experienced engine builders swear by a flush done with proper products.
I'd probably opt for full manual cleaning, then pour in some cheapo oil, run it for a heat cycle, drain and refill with good synthetic. The important thing is that this whole problem can be avoided with real synthetic oil and good OCIs.
I probably should not have given that for advice, as I've never actually done an engine flush. That said, I have heard several experienced engine builders swear by a flush done with proper products.
I'd probably opt for full manual cleaning, then pour in some cheapo oil, run it for a heat cycle, drain and refill with good synthetic. The important thing is that this whole problem can be avoided with real synthetic oil and good OCIs.
10-05-2010, 12:36 PM
#44
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Join Date: Aug 2010
Location: Calgary
Posts: 531
Re: Oil sensor issue - oil sludge? A4 1.8T 2003
I will try and clean out as much of the sludge with the manual cleaning suggested above and then a shorter oil change interval. We've only owned this car for 2 years and changed the oil every 5000km (often times slightly earlier) so I'm assuming the PO wasn't as forthright as he made himself out to be. Until that can be done, I'll be driving my Alfa in the rain. Thanks for the tips. I'll take some photos of the exposed pieces once I get it apart.
How fast do you drive this car? It looks as you are doing 60 km/hr all the time.
Maybe it is the time to run it to Merrit and back? Audis absolutely love and are made to get these RPMs to 6000 at least once a day or so. It appears that you are not getting enough flow of oil.
I am interested about the profile of the person who you bought it from, because this kind of thing in the engine is caused by not changing the oil for a year or so and in addtion exposing it to water.
10-05-2010, 12:46 PM
#45
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Re: Oil sensor issue - oil sludge? A4 1.8T 2003
Day to day it is usually city driving but I took it to Kelowna and back 5 times this summer. And I get on the highway at least once a week. The PO was a firefighter so I'm assuming it just sat a round a whole bunch (like firefighters do).
10-05-2010, 01:38 PM
#47
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Join Date: Nov 2008
Location: Regina, SK
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Re: Oil sensor issue - oil sludge? A4 1.8T 2003
He has sludge not pumice.
It looks like he forgot to change that oil for a year a couple of times.
Blow the picture to see the crust.
This crust is on his pistons and rings. How can this engine be damaged now?
You recommend scrubbing this engine from inside ... and than what when all this crust starts blowing his out valves? I say do it slowly with Castrol.
It looks like he forgot to change that oil for a year a couple of times.
Blow the picture to see the crust.
This crust is on his pistons and rings. How can this engine be damaged now?
You recommend scrubbing this engine from inside ... and than what when all this crust starts blowing his out valves? I say do it slowly with Castrol.
I advised that he clean the sludge, and I thought it was implicit that he remove it from the engine, not just leave chunks of it lying around - I should have actually stated as much. The Seafoam/Auto-Rx, and a heat cycle with throwaway oil should clean up any errant sludge still in the engine.
10-05-2010, 01:47 PM
#48
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Location: Calgary
Posts: 531
Re: Oil sensor issue - oil sludge? A4 1.8T 2003
Agreed.
Does he have the knowledge, the tools, the time to do all the dismantling and putting all the parts together?
In addition he will need new parts like seals and what not to put it back together. Knowing the dealers they do not have it in stock and they have to order it. It looks like a solution that will take a month to complete at best. And later something leaks again.
So
What happened to this car? Is it possible that PO being a firefighter would call his friends to spray the car with 1000 liters of water with the engine running, instead of going to a car wash?
Does he have the knowledge, the tools, the time to do all the dismantling and putting all the parts together?
In addition he will need new parts like seals and what not to put it back together. Knowing the dealers they do not have it in stock and they have to order it. It looks like a solution that will take a month to complete at best. And later something leaks again.
So
What happened to this car? Is it possible that PO being a firefighter would call his friends to spray the car with 1000 liters of water with the engine running, instead of going to a car wash?
Last edited by adamstasiak; 10-05-2010 at 08:29 PM.
11-09-2011, 09:21 AM
#49
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Join Date: Dec 2007
Posts: 1
Re: Oil sensor issue - oil sludge? A4 1.8T 2003
Hi guys,
bringing this thread back to life.
I just bought a A4 2002 avant with 169 000km.
Brought the car to a mechanic before buying and told me this car was in good shape.
before buying it, i remember the previous owner telling me that he changed the oil level sensor last month.
Got the car home and I did a full vagcom to it came up with this code :
1 Fault Found:
00562 - Sensor for Oil Level/Temperature (G266)
27-10 - Implausible Signal - Intermittent
I deleted it but it came back. However I still havent had a check sensor light on the dashboard.
I did check under the oil cap, there seems to be some oil deposit.
Any input for next steps would be appreciated !
bringing this thread back to life.
I just bought a A4 2002 avant with 169 000km.
Brought the car to a mechanic before buying and told me this car was in good shape.
before buying it, i remember the previous owner telling me that he changed the oil level sensor last month.
Got the car home and I did a full vagcom to it came up with this code :
1 Fault Found:
00562 - Sensor for Oil Level/Temperature (G266)
27-10 - Implausible Signal - Intermittent
I deleted it but it came back. However I still havent had a check sensor light on the dashboard.
I did check under the oil cap, there seems to be some oil deposit.
Any input for next steps would be appreciated !
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