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P3081 on my W8- Where's the Temp sensors?

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  Quote ___/ __/ _/ Quote  Post ReplyReply Direct Link To This Post Topic: P3081 on my W8- Where's the Temp sensors?
    Posted: 10-Apr-2008 at 01:02
I pulled this code today after my engine fan stayed on while driving the other day. Coolant level is fine, so is engine temp.




This:

VAG-COM Version: Release 409.1-US

Control Module Part Number: 07D 906 018 E
Component and/or Version: B5S-4.0L-AG-LEVG 5088
Software Coding: 00173
Work Shop Code: WSC 23322
Additional Info: WVWZK63B33E061643 VWZ7Z0B5288859
1 Fault Found:
19537 - Engine Temperature too Low
P3081 - 35-10 - - - Intermittent




My question: Where is/are the temp sensor(s) located on the W8 engine? Has anyone seen a write-up on the W8 replacement of these? I search and found nada.




Mike
"I agree that the W8 is a great car--when it works... "
-dstathos-

^Pure Genius! Why didn't I write that?!?

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  Quote squish Quote  Post ReplyReply Direct Link To This Post Posted: 10-Apr-2008 at 09:27
that could be the legendary W8 thermostat issue. the thing is located deeply inside the engine and requires invasive procedures to replace. be sure to have your warranty in place!
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  Quote VWAffe Quote  Post ReplyReply Direct Link To This Post Posted: 10-Apr-2008 at 10:13
Welcome to the cooling-system club... see the thread I started here.

I haven't seen the exact code you list, but it sounds like your car is flaking out a little - I've come to the conclusion on mine that it's probably the ECU going nutty, because odd cooling system problems have come and gone related to the temperature sensors (there are two) and/or the thermostat. Sometimes the computer will think one or another sensor is reading high, sometimes the thermostat doesn't seem to respond, and sometimes it declares a general system fault. It's not had any problems in about a month now, so I've refrained from tearing into it. Knock on wood.

If you want to use VAG-COM to see what's going on, use measuring blocks groups 130-132... the other thread has graphs fitzski and I made using group 131 for comparison.

The Bentley doesn't exactly give step-by-step instructions on replacing the sensors (if that's what you need, which I doubt)... but it does show you where they are. One is at the radiator outlet (top passenger side hose), and one is buried under the intake manifold towards the rear of the engine, near the thermostat.

Good luck!

Edited by VWAffe - 10-Apr-2008 at 16:18
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  Quote ___/ __/ _/ Quote  Post ReplyReply Direct Link To This Post Posted: 11-Apr-2008 at 18:32
Thanks guys. I'll try the measuring block thing. Keep you updated....






Mike
"I agree that the W8 is a great car--when it works... "
-dstathos-

^Pure Genius! Why didn't I write that?!?

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