Help needed on a Rescue Mission for a non-starting FSI

ha, you know about Norwegian garage prices? I'd be surprised if you get change from €150 for an hour. Wrong fuel is another possibility. Especially if it was E85 not 98...

- Bret
 
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Your engagement in my predicament is fantastic. :)
I really appreciate all the input.

As Bret pointed out, garage prices in Norway are painful. Enough said.
Only fuel in vehicle is 98 and is at a half tank, down from the full tank last week.

Latest development is that my son now remembers that the hazard/flashers were blinking when he arrived at the car and he forgot to mention it in the stress of the moment/frantic actions needed to get to the airport, and today when I spoke to the house owner where he abandoned the vehicle, he also confirmed that the hazard lights were flashing all night. As all local parties were at the same wedding, we might assume that for some reason the alarm went off (and no-one we know was around to hear it) and was still in "protect modus" when my son tried to start it approximately 8-10 hours later.

And a likely cause for the non-start situation is the ignition cut-out that I expect is integrated in the alarm / anti-theft system.
Is it possible that the battery was so low from the hazard lights blinking all night that when he used the remote to unlock the car that the alarm didn't turn off completely??
What is the recommended process to re-set and/or deactivate a "hanging" alarm system that has been set-off / activated?
 
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Weelll the road trip to quick-fix the FSI was not a quick-fix as hoped...
It is now at the Audi dealer waiting to be diagnosed....
Fuel pump heard when opening driver's door.
No change after disconnecting reconnecting battery.
No sputter with gas sprayed right into intake.
I am guessing coil, brain, or hanging immobilizer from alarm...
 
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it is possible that it's the high pressure pump in the engine bay, but yes, I'd definitely want to charge the battery fully before going much further. A jump start might not provide enough juice.

- Bret
 
Did you try the spare key...............ask your son if he dropped the keys and they burst open..................the little immob chip may have fallen out and the car wont start................ or the key fob may have been damaged and the chip broken..............
This may seem extreme....... but I have known this happen
 
it is possible that it's the high pressure pump in the engine bay, but yes, I'd definitely want to charge the battery fully before going much further. A jump start might not provide enough juice.

I'll second that. When I had a fuel filter change the garage couldn't start the car. In the end they charged the battery overnight AND used jump leads from a second battery and it started. The hazard warning light on for hours plus an old battery may make the battery sub-optimal.
 
Well the verdict is in, and the guilty party is WATER!
There was water in the battery compartment that I didn't think much of, but it turns out that there was water also in the compartment under the driver's (left hand drive) footwell compartment with the ECU etc.
The Audi dealer said they were getting no response from the ECU on Friday.
They dried it out and cleaned some connections, and it started. They reset several error messages. (now even the EGR lamp is OFF).
Unfortunately on Monday, the battery was weak after standing for the weekend, so there may be a lingering aftermath of the water damage.
They recharged the battery, it started and recommended to drive the car and recharge the battery as needed, and with luck everything will dry out.
I collected and drove the car yesterday without any issues.

When I asked the dealer where the water came from, they were not able to help....
So the next question is where should I look for sources of water ingress that include the ECU compartment AND the battery compartment?
Is there an easy way (ha ha ha) to test the draining capacity of the OSS module? Where are the drains located??
The car is parked outside, and we have had some torrential rains in late Many and early June.

FYI earlier this spring when I removed the TV-tuner module in the compartment next to the battery (as analog TV no longer available), I noticed that the unit was corroded and non-functional, and looked like it had previously experienced moisture damage (now assessed potentially to be water damage). I do not recall seeing any water in the battery compartment at that time.
 
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Not sure about the back, but the OSS has no specific drains from the front. It relies on there being channels between the butyl bonding for the windscreen and the metal of the A-pillar. Water stains on the headlining would certainly indicate an issue there, if there are none it could be the windscreen itself that needs resealing. The water in the battery compartment may also be a symptom of poor OSS drainage from the rear, but commonly points to the seals failing on the plastic vents which are behind the rear bumper. Could there be water ingress from floor damage from jacking in the wrong place?
 
Not sure about the back, but the OSS has no specific drains from the front. It relies on there being channels between the butyl bonding for the windscreen and the metal of the A-pillar. Water stains on the headlining would certainly indicate an issue there, if there are none it could be the windscreen itself that needs resealing. The water in the battery compartment may also be a symptom of poor OSS drainage from the rear, but commonly points to the seals failing on the plastic vents which are behind the rear bumper. Could there be water ingress from floor damage from jacking in the wrong place?
What you've just described *are* the drains. Pictures and how to clean them: https://wiki.a2-freun.de/wiki/index.php/Open_Sky_System#Regenwasserabl.C3.A4ufe I would strongly suggest doing just that, preferably with a long nylon filament - like a spare grasscutting one.

I know this because my own is "blocked" - it runs down the outside of the car, underneath the windscreen, and mine is mostly blocked about half way down. This results in water in the headliner and anywhere else it feels like after enough rain.
If it's in the under-floor compartment and all the seals are good, check the OSS. From there, the windscreen and scuttle seals, and then the dash ought to come out if it's not obvious.
The battery compartment water says you have faulty vents behind the bumper. There are generally zero other explanations for this, no matter how far-fetched it may seem.

- Bret
 
.. and the reason mine are blocked is because the fools who replaced the windscreen obviously used too much adhesive... <sigh>.
I will take the wing off at some point and fix it correctly.

- Bret
 
What you've just described *are* the drains. Pictures and how to clean them: https://wiki.a2-freun.de/wiki/index.php/Open_Sky_System#Regenwasserabl.C3.A4ufe I would strongly suggest doing just that, preferably with a long nylon filament - like a spare grasscutting one.
Bret,
Many thx. I am impressed with level of detail on the German A2 Forum.... I only wish my German was better.
I was able to recognize 5 of the 6 pictures showing the rain drain locations. Any chance you could help me locate the position where OSS_Regenwasserablauf_05.jpg ‎is taken from?
John
 
yes, 5 is from the side of the car looking under the opened roof with the rear of the car on the right-hand side of the photo. If you try it with a cable tie, you'll feel the location.

- Bret
 
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