2001 Audi A4 V6 -- P0118 code

I was driving home yesterday and the check engine light came on. Went to AutoZone and the code was P0118 -- Engine Coolant Temperature (ECT) Sensor - High Circuit
So, I went to the dealer this AM, got the $8 part and got my Audi manual out. I have both the factory and Haynes manual. I looked through, thought I figured it out where it was and started to goto work. One website on the audi forum says it takes about 5 minutes to replace -- guess I busted that timeframe.
For the life of me, I cannot find the ECT sensor to replace it.
I removed the "black ribbed piece" between the MAF sensor and the hard plastic piece, but for the life of me -- no joy.
Taking it to a Audi specialist in Denver on Tuesday, just curious if anyone knows if I am in the right area for the sensor.
- -- snipped-for-privacy@akaMail.com Anti-Spam filter in place-- <delete .remove-this to respond to email>
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sat, 29 Jan 2005 14:50:54 -0700, Curtis Newton

I took a few photos of where I thought it was....posted below.
http://users.adelphia.net/~cnewton/audi.htm - -- snipped-for-privacy@akaMail.com Anti-Spam filter in place-- <delete .remove-this to respond to email>
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sat, 29 Jan 2005 18:18:01 -0700, Curtis Newton

acc to my 1998 family album the ECT should be located on top of cooling water manifold outlet from right cylinder bank (left side when standing in front of car). So if this isn't changed on the 2001 model you should be looking in the correct area.
but acc. to the article http://www.audiworld.com/tech/eng54.shtml at http://www.audiworld.com/tech /
it's not easy to spot, and change either hope this is of any help...
regards ottar t
--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail /

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Thanks. I know when to give up...:-) I had looked at the link you provided already and found the one sensor, but was unable to find the blue one...Audi had to have moved it from the link you provided, because I was looking immediately underneath the hard plastic piece and there wasn't anything there.
I called a small independent shop in Denver and they are going to look at it on Tuesday....he said when that code comes up, it could also be the thermostat...so, rather than me changing parts that might not need to be changed, I will just take it in.
- -- cnewton at akaMail.com Anti-Spam filter in place-- <delete .remove-this to respond to email>
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

If it is the thermostat, then you may want to consider splurging - and I do mean splurging - for the T.B., water pump, tensioners, etc if it has been more than 50-60,000 miles since that service was done.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

I am new to Audi's (been driving Japanese cars for the longest time)......there must be a TON of labor involved in replacing the thermostat??? When I replaced the thermostat on the Japanese cars, it was usually pretty easy, I am guessing the Audi's aren't.
I can already $ee the cost ....... thanks for the tip...... the car has 55,000 miles on it and I planned to keep it to 75,000 miles. At that time, I plan to trade it on the 2.0L A4 coming out this Spring...I want to give Audi a chance to work out the bugs before I buy that one. - -- cnewton at akaMail.com Anti-Spam filter in place-- <delete .remove-this to respond to email>
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

I let my T.B. go until 73,000 miles. My '98 A4 V6 2.8 has a 90,000 mile interval in the maintenance manual but I believe Audi has reduced that interval since. When I had it done I also had the water pump, thermostat, tensioners and serpentine belt replaced and oil leaks fixed to the tune of $1200 total at a good independent. I think the oil leak portion of that was about 1/3. I believe the labor for the thermostat is almost as much as that for the T.B. because you have to do much the same work to get at the dang thing. I suspect you'll find that problem is the sensor since it seems to be a common replacement item. Ironic you should be coming to Audi from Japanese, I expect to be going in the opposite direction in a year or two. I've had Audis for nearly twenty years so time for a change. If you haven't done so already, you should check out Audiworld.com. There's a wealth of info in the searchable forum archives.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

That is why I had planned to trade my A4 at 75,000 miles.
BTW, the interval from the dealer and the manual say timing belt replacement on 2.8L 30V V6 is 105,000 miles. Of course, I would never take it that far.
And, I hope you are right about the problem being the sensor.

I live in Colorado and the quattro is just so sweet. The front wheel drive cars I have had (Accord, Integra, ES300) just didn't get around well in the winter. I feel like I can go anywhere in my A4. I actually have been looking at the Infinity G35X, but I don't like the interior at all--bottom line, I really like the Audi A4.
As for the Audi forums, been there, actually had a post there also.
Off to the dealer on Tuesday to (hopefully) replace the ECT sensor and nothing else...:-)
Thanks again for the help. L8R.
- -- cnewton at akaMail.com Anti-Spam filter in place-- <delete .remove-this to respond to email>
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Whan I bought my A4 2.6 towards the end of 1996, I remember the dealer telling me that the introduction of the 2.8 30v was delayed because of the significant number of belt failures in testing, before 60k!
--
Peter Bell (Note Spamtrap - To reply, replace 'invalid' with 'bellfamily')

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

Perhaps by 2001 (my model year), they addressed that issue??
Like I said, if I were to keep the car, I would replace the belt at 75,000 miles...but, I plan to get the new A4 with the 2.0L turbo in about a year.
- -- cnewton at akaMail.com Anti-Spam filter in place-- <delete .remove-this to respond to email>
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Indeed - but if they struggled to reach 60k reliable miles, I wouldn't trust it much beyond that distance.
--
Peter Bell (Note Spamtrap - To reply, replace 'invalid' with 'bellfamily')

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

I thought the 2.8 v6 30v was chain driven?
Steve.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Steve68s wrote:

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Update: ECT sensor was bad....$230 later....ouch.
- -- cnewton at akaMail.com Anti-Spam filter in place-- <delete .remove-this to respond to email>
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Related Threads

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.