[V8] 2002 A6 Quattro V8 4.2L. Starting problem

[Scott Justusson]

Well, here's my btdt....  During a large flood in Chicago about 10 years ago, I had 2 v8 come into my shop because of water in the footwell (and 1 more with water coming in through the air intake during a puddle dash).  The location of the relays/fuse block in the footwell bilge had fried enough of the electrical system to take out the perfectly dry engine/trans ecus.  Total losses, all three.

Audi has put the footwell mounted ecus in all the C4, and heightwise, in all the type 44 chassis cars.  The best preventive maintenance IMO, is to put the ecus in a couple of ziploc bags to give an extra 6inches of bilge depth.  That said, the v8 ecus mounted under the DS dash just get remotely fried, not directly submerged.  Then again, I just haven't replaced that many water logged ecus in my 20some years of working on them.  

Just sayin....

Scott 'uboat resq btdt' J

 

 

 

-----Original Message-----
From: toml99 <toml99 at todomundo.com>
To: v8audi <v8 at audifans.com>
Sent: Mon, Aug 19, 2013 1:29 am
Subject: Re: [V8] 2002 A6 Quattro V8 4.2L. Starting problem


My friend's 2000 A6 3.0? had the ECU in a depression under the  
passenger floormats which with the plugged unnoticeable drain under  
the battery, leaked badly into the car when raining(PNW), and when I  
pulled the ECU out, it was 1/2 underwater.....Used ECU and unplugging  
all those drains under the raintray solved the problem.  Stupid place  
to put it.as it was the lowest point in the cab (think bilge pump if  
you are a boat person).    Not sure where the 4.2 is...., but could  
be there.  This is the V8 list, and mine's never got wet...Ha...Tom
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