Hi! New C5 A6 owner here, and I have a few questions: - AudiWorld Forums

Go Back   AudiWorld Forums > Audi Models > Audi A6 / S6 / RS 6 > A6 / S6 (C5 Platform) Discussion
Sign in using an external account
Register Forgot Password?


A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

Hi! New C5 A6 owner here, and I have a few questions:

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
Old 03-11-2014, 12:07 AM   #1
Audiworld Junior Member
 
BeOhBe's Avatar
 
Join Date: Feb 2014
Location: Central PA
Posts: 41
Default Hi! New C5 A6 owner here, and I have a few questions:

Hello all! I bought a 2004 A6 2.7t s-line two weeks ago, and I'm running into a few minor issues. No engine or tranny issues, aside from a horribly damaged flex hose that connects to my combi valves (was throwing a p0492 code). Will post some pictures of the frankenhose that I took off, it had two previous shoddy makeshift repairs on it. I had a pretty good laugh when I took it off and saw just how bad that hose was. Ordered a new hose, tried to put it on, put it doesn't seem to want to fully clip on to the passenger side combi valve.

So my first question is this: If the new hose won't click and stay on that combi valve, is it possible that I need to replace the actual combi valve? Is the connection failure on the valve itself? With the two junk repairs on the hose, could they have damaged the actual valve? I don't see any damage, but I can't seem to get the new hose to securely connect on the passenger side. The old hose came off that side way easier than it should have, so it seems like that was a problem previously. Had a hell of a time gettin the old one of the drivers side valve, though. Ended up having to break the old hose completely just to get it off that one. The p0492 code is for insufficient flow on the drivers side, and sure enough it was cracked underneath the snap-on silver cover that goes over the bend at the end. It seems to be connected well on that valve, but the passenger side just won't connect properly. I've cold started her three or four times now since I installed the new hose, but the CEL is still on. A friend of mine, who owns an '08 S4, is coming over in the morning with his Ross Tech, so I'll know more about the CEL then.

Second question: I also had the clicking hazard relay issue. I received a new relay this morning, replaced it, and the clicking is now an even more annoying buzzing as soon as I turn the key. I didn't have any issues with the turn signals before, they worked fine, as did the hazards.
Is the turn signal stalk my next move? I searched the forums, and found similar topics, but nothing seemed an exact match. The clicking that was happening before came in bursts of five or six clicks, and it would happen randomly. I ended up putting the old relay back in for now. I also sprayed some contact cleaner in at the base of the stalk. It still clicks, but it seems like it clicks less. Not positive, though, as I only drove it to work and back today (about 3 miles total).

I also had her in the shop after I bought her, just to have her thoroughly looked at. Needed new brake lines and upper control arms. No question here, just thought I'd mention it. My mechanic is an Audi/VW specialist, and a family friend of a friend of mine (the previously mentioned owner of the S4, his dad has been best buds with my mechanic for 30+ years. They actually sent me to him when I bought the car).

Anyway, thought I'd say hi since I'm new to Audi's. And new to the forums! Thanks in advance for any help, tips, etc. This site has already proven to be extremely helpful.

Cheers!

-Bob

Almost forgot pictures!

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.
BeOhBe is offline   Reply With Quote
Old 03-11-2014, 02:57 AM   #2
Tech Guru
 
4Driver4's Avatar
 
Join Date: Oct 2002
Posts: 33,258
Default

Make sure the combi valve is clean. Lubricate the o-ring with oil.

When you say hazard relay, do you mean the hazard light switch in the center console? That is usually the issue.
__________________
4Driver4

Growing old is mandatory; growing up is optional.

2005 A6 Sedan Q 3.2 (wife's whip)
2003 S8 (Q Ship)
2000 A4 Avant Q 2.8 (daily driver)
1999 BMW M Coupe (clownshoe)
1980 VW Scirocco (mid-life crisis car)
1983 Mazda RX-7 (revolutionary sports car)
1999 Mazda Miata SSB (track beotch, no plate)
2003 GMC Yukon Denali XL (the anti-earth)
2004 Dodge Dakota (hey, at least it's stick and 4x4)
4Driver4 is offline   Reply With Quote
Old 03-11-2014, 09:53 AM   #3
Audiworld Junior Member
 
BeOhBe's Avatar
 
Join Date: Feb 2014
Location: Central PA
Posts: 41
Default

Quote:
Originally Posted by 4Driver4 View Post
Make sure the combi valve is clean. Lubricate the o-ring with oil.

When you say hazard relay, do you mean the hazard light switch in the center console? That is usually the issue.
Will try cleaning it and lubing the o-ring, thanks!

And yes, I was indeed referring to the hazard switch in the center console. I ordered the new one from ECS, part #4B0 941 509 K B98.
When I put the new one in, the random turn-signal sounding clicking became a steady buzzing sound, immediately when I turn the ignition key. So I took the new one out and put the old one back in for now. At that point, I sprayed some contact cleaner at the base of the turn signal stalk, just to see if it would help at all, and it seemed like it did. Still clicking, but now it's two or three clicks instead of bursts of six-ish clicks. It happens randomly while driving, although if I barely push the turn signal stalk up or down, I can force it to happen.

Is it possible I have the wrong hazard switch? The one that was in there is made by Vemo, and is a 10 pin connection. That's not OEM, is it? And since it's a Vemo, I'm guessing that it's been replaced before? The one I ordered and received from ECS is OEM and also a 10 pin connection, but I thought the ones that originally came in this car were a 9 pin connection.
BeOhBe is offline   Reply With Quote
Old 03-11-2014, 12:08 PM   #4
AudiWorld Super User
 
SloopJohnB@mac.com's Avatar
 
Join Date: Oct 2002
Location: Olney, MD
Posts: 6,180
Default

(quote)
I also had her in the shop after I bought her, just to have her thoroughly looked at. Needed new brake lines and upper control arms. No question here, just thought I'd mention it. My mechanic is an Audi/VW specialist, and a family friend of a friend of mine (the previously mentioned owner of the S4, his dad has been best buds with my mechanic for 30+ years. They actually sent me to him when I bought the car).

Anyway, thought I'd say hi since I'm new to Audi's. And new to the forums! Thanks in advance for any help, tips, etc. This site has already proven to be extremely helpful.

Cheers!

-Bob(quote)

Probably didn't need new brake lines….that seems to be a go-straight-to-profit item for dealers/shops these days. Just because the outer covering is cracked doesn't mean it needs to be replaced although arguably many people say should. And if you DO replace them, replace them either with braided stainless steel or braided kevlar (blue or black) lines with the appropriate clamps holding the lines to the body or caliper mount. The braided stainless will saw through metal clamps or plastic cable ties.
SloopJohnB@mac.com is offline   Reply With Quote
Old 03-11-2014, 02:10 PM   #5
Audiworld Junior Member
 
BeOhBe's Avatar
 
Join Date: Feb 2014
Location: Central PA
Posts: 41
Default

Quote:
Originally Posted by SloopJohnB@mac.com View Post
Probably didn't need new brake lines….that seems to be a go-straight-to-profit item for dealers/shops these days. Just because the outer covering is cracked doesn't mean it needs to be replaced although arguably many people say should. And if you DO replace them, replace them either with braided stainless steel or braided kevlar (blue or black) lines with the appropriate clamps holding the lines to the body or caliper mount. The braided stainless will saw through metal clamps or plastic cable ties.
Yeah, you're probably right about not absolutely needing them, but he mentioned they were all cracking, so I had him put some ss lines on. It was $250-ish installed, and they feel better now regardless, so I'm happy.
BeOhBe is offline   Reply With Quote
Old 03-12-2014, 03:00 AM   #6
Tech Guru
 
4Driver4's Avatar
 
Join Date: Oct 2002
Posts: 33,258
Default

Quote:
Originally Posted by SloopJohnB@mac.com View Post

Probably didn't need new brake lines….that seems to be a go-straight-to-profit item for dealers/shops these days. Just because the outer covering is cracked doesn't mean it needs to be replaced although arguably many people say should. And if you DO replace them, replace them either with braided stainless steel or braided kevlar (blue or black) lines with the appropriate clamps holding the lines to the body or caliper mount. The braided stainless will saw through metal clamps or plastic cable ties.
Totally disagree with this. The rubber lines to the front calipers crack right at the fitting. If this is the case, they should be replaced. They are about $10 each. Do not buy anything fancy. Just use good quality rubber lines that are designed for everyday road use and weather.
__________________
4Driver4

Growing old is mandatory; growing up is optional.

2005 A6 Sedan Q 3.2 (wife's whip)
2003 S8 (Q Ship)
2000 A4 Avant Q 2.8 (daily driver)
1999 BMW M Coupe (clownshoe)
1980 VW Scirocco (mid-life crisis car)
1983 Mazda RX-7 (revolutionary sports car)
1999 Mazda Miata SSB (track beotch, no plate)
2003 GMC Yukon Denali XL (the anti-earth)
2004 Dodge Dakota (hey, at least it's stick and 4x4)
4Driver4 is offline   Reply With Quote
Old 03-12-2014, 06:47 AM   #7
Audiworld Junior Member
 
BeOhBe's Avatar
 
Join Date: Feb 2014
Location: Central PA
Posts: 41
Default

Quote:
Originally Posted by 4Driver4 View Post
Totally disagree with this. The rubber lines to the front calipers crack right at the fitting. If this is the case, they should be replaced. They are about $10 each. Do not buy anything fancy. Just use good quality rubber lines that are designed for everyday road use and weather.
Do you think it was a mistake on my part to have the stainless steel lines put on? I had him quote me prices on both rubber and ss, and the difference was only about $50, so I just went with the ss lines. He seemed to think it was a bit overkill, but did it anyway.

As for my hose issue, I cleaned up the combi valve at the connection, and was able to get the hose to seat on properly. Finally. I didn't put the silver snap-on cover back on though. Didn't want to mess with the hose once I got it on there. How important are those sleeves, anyway?

And my friend came over with his Ross Tech yesterday. Turned off the horn when arming the alarm, ran a full scan, and cleared the codes to turn off the CEL related to my SAI (had a fault code for both banks at this point). Cold started it this morning for the first time since we did that, SAI kicked on, and no CEL.
(I had my mechanic ignore the SAI fault codes when he had it last week, as I already had the new hose on order.)

Also, I'm looking at Bentley manuals this morning. Should I get the book or dvd version? Is one better than the other (more comprehensive, easier to use)?
BeOhBe is offline   Reply With Quote
Old 03-12-2014, 06:49 AM   #8
Tech Guru
 
4Driver4's Avatar
 
Join Date: Oct 2002
Posts: 33,258
Default

Yup. Rubber is plenty for road use. Plus it stands up better to water and sand.
__________________
4Driver4

Growing old is mandatory; growing up is optional.

2005 A6 Sedan Q 3.2 (wife's whip)
2003 S8 (Q Ship)
2000 A4 Avant Q 2.8 (daily driver)
1999 BMW M Coupe (clownshoe)
1980 VW Scirocco (mid-life crisis car)
1983 Mazda RX-7 (revolutionary sports car)
1999 Mazda Miata SSB (track beotch, no plate)
2003 GMC Yukon Denali XL (the anti-earth)
2004 Dodge Dakota (hey, at least it's stick and 4x4)
4Driver4 is offline   Reply With Quote
Old 03-12-2014, 07:50 AM   #9
AudiWorld Member
 
Join Date: Jul 2013
Posts: 374
Default

Quote:
Originally Posted by BeOhBe View Post
Also, I'm looking at Bentley manuals this morning. Should I get the book or dvd version? Is one better than the other (more comprehensive, easier to use)?
The DVD version weighs less, and you can print out wiring diagrams, etc. and mark them up, and, after you no longer need them, you can throw them away.

The primary negative about the dvd manuals is that, should you have a hard drive crash, you may end up losing one of your licenses, unless you have the foresight to remove the license before the crash.
georgeb944 is offline   Reply With Quote
Old 03-12-2014, 08:02 AM   #10
Audiworld Junior Member
 
BeOhBe's Avatar
 
Join Date: Feb 2014
Location: Central PA
Posts: 41
Default

Quote:
Originally Posted by 4Driver4 View Post
Yup. Rubber is plenty for road use. Plus it stands up better to water and sand.
Meh, what's done is done. I'll be sure to check em every so often, thanks for the heads up.

I'm looking at this Bentley manual:


Look good? Was originally looking at books, but this is about the same price. Free shipping, too.
BeOhBe is offline   Reply With Quote
Old 03-12-2014, 08:10 AM   #11
Audiworld Junior Member
 
BeOhBe's Avatar
 
Join Date: Feb 2014
Location: Central PA
Posts: 41
Default

Quote:
Originally Posted by georgeb944 View Post
The primary negative about the dvd manuals is that, should you have a hard drive crash, you may end up losing one of your licenses, unless you have the foresight to remove the license before the crash.
Hmm, I hadn't considered that. Now I'm torn again.
BeOhBe is offline   Reply With Quote
Old 03-12-2014, 12:31 PM   #12
AudiWorld Member
 
massboykie's Avatar
 
Join Date: Feb 2006
Location: Natick, MA
Posts: 473
Default

Quote:
Originally Posted by BeOhBe View Post
Meh, what's done is done. I'll be sure to check em every so often, thanks for the heads up.

I'm looking at this Bentley manual..

Congrats on the "new" ride... Looks just liek mine!

Cheapest place for the Bentley is actually a BMW site! Go figure!

Paper
http://www.bimmerzone.com/Audi_Servi.../BNT-A604.html
DVD
http://www.bimmerzone.com/Audi_Servi.../BNT-AC55.html

Cheers
Massboykie
__________________
2002 Audi A6 2.7T 6spd, Pipercross, ECS N75, 110s, UUC S/S, GIAC-X, APR Catback, SSAC D/Ps, Magnaflow CATs, Eibach Cupkit, Hotchkis F/R, 034 Spacer, AWE Snub, Unorthodox Pulleys, "Brembo" BBK, Goodridge SS
2006 Audi A4 Avant 2.0T 6spd, K&N DI, STaSIS Catback, Forge DV, AWE Snub, Custom S/S

http://www.VAGLinks.com - 2000+ VAG Links!
http://www.PlanetVAG.com - VAG Only Search Engine!
massboykie is offline   Reply With Quote
Old 03-12-2014, 12:57 PM   #13
AudiWorld Super User
 
SloopJohnB@mac.com's Avatar
 
Join Date: Oct 2002
Location: Olney, MD
Posts: 6,180
Default

To clarify, I'm talking about minor alligator skin, not a BF crack at the fitting.
SloopJohnB@mac.com is offline   Reply With Quote
Old 03-12-2014, 01:00 PM   #14
AudiWorld Super User
 
SloopJohnB@mac.com's Avatar
 
Join Date: Oct 2002
Location: Olney, MD
Posts: 6,180
Default

I don't think it was a mistake other than the $50 and that's between you and your wallet. I've never had a braided stainless steel or kevlar brake hose deteriorate to the point of replacement while clearly the rubber ones do (deteriorate).
SloopJohnB@mac.com is offline   Reply With Quote
Old 03-12-2014, 01:15 PM   #15
AudiWorld Super User
 
SloopJohnB@mac.com's Avatar
 
Join Date: Oct 2002
Location: Olney, MD
Posts: 6,180
Default

I have both…the bentley hard copy and the eBahn DVD. The problem with the eBahn DVD is it only works on Windows XP…I have Windows 7 Professional and have to run eBahn with a virtual PC. It's a pain to boot up the virtual PC. Bentley has told me they're working on upgrading to whatever, but I'm not holding my breath.

Sometimes I just want to sit down with a real service manual/book rather than filthify the keys on my laptop….
SloopJohnB@mac.com is offline   Reply With Quote
Old 03-12-2014, 01:18 PM   #16
Audiworld Junior Member
 
BeOhBe's Avatar
 
Join Date: Feb 2014
Location: Central PA
Posts: 41
Default

Quote:
Originally Posted by massboykie View Post
Congrats on the "new" ride... Looks just liek mine!

Cheapest place for the Bentley is actually a BMW site! Go figure!

Paper
http://www.bimmerzone.com/Audi_Servi.../BNT-A604.html
DVD
http://www.bimmerzone.com/Audi_Servi.../BNT-AC55.html

Cheers
Massboykie
Ha, I was actually just about to order the paper version from their ebay store, but it's 10 bucks cheaper on their actual website. Thanks, hadn't thought to check.

Going with the paper version after checking the bentley website for system requirements on the dvd version. Apparently, if you have Win 7 home premium, you need to setup a virtual pc using third-party software. No thanks.
I figure I can just take pictures with my phone or tablet, or use the scanner on my printer, if I want something lighter to carry around.
BeOhBe is offline   Reply With Quote
Old 03-12-2014, 01:20 PM   #17
AudiWorld Super User
 
SloopJohnB@mac.com's Avatar
 
Join Date: Oct 2002
Location: Olney, MD
Posts: 6,180
Default

Quote:
Originally Posted by 4Driver4 View Post
Yup. Rubber is plenty for road use. Plus it stands up better to water and sand.
I disagree. The OEM rubber ones clearly didn't stand up to water and sand and whatever got thrown at them to crack.

PVC-coated braided stainless steel teflon lines or kevlar braided teflon lines, OTOH, will last virtually forever. I ran SS lines on my 87 saab 900T for over 15 years without a problem…and they were almost as shiny as when new. I also ran SS braided over teflon oil aeroquip lines from a remote oil filter from 1973 to 2008 on four different cars, and the only problem I had was the SS was eaten away in a couple places by battery acid (memo to self…don't run SS behind battery box) but the teflon line was undamaged. Subsequently I use kevlar braided lines that are pretty much impervious to everything.
SloopJohnB@mac.com is offline   Reply With Quote
Old 03-12-2014, 02:05 PM   #18
Tech Guru
 
4Driver4's Avatar
 
Join Date: Oct 2002
Posts: 33,258
Default

Quote:
Originally Posted by SloopJohnB@mac.com View Post
I have both…the bentley hard copy and the eBahn DVD. The problem with the eBahn DVD is it only works on Windows XP…I have Windows 7 Professional and have to run eBahn with a virtual PC. It's a pain to boot up the virtual PC. Bentley has told me they're working on upgrading to whatever, but I'm not holding my breath.
That's only part of the problem. They will charge you for the privilege of the upgrade. Their customer service is the pits.
__________________
4Driver4

Growing old is mandatory; growing up is optional.

2005 A6 Sedan Q 3.2 (wife's whip)
2003 S8 (Q Ship)
2000 A4 Avant Q 2.8 (daily driver)
1999 BMW M Coupe (clownshoe)
1980 VW Scirocco (mid-life crisis car)
1983 Mazda RX-7 (revolutionary sports car)
1999 Mazda Miata SSB (track beotch, no plate)
2003 GMC Yukon Denali XL (the anti-earth)
2004 Dodge Dakota (hey, at least it's stick and 4x4)
4Driver4 is offline   Reply With Quote
Old 03-13-2014, 08:35 AM   #19
Audiworld Junior Member
 
BeOhBe's Avatar
 
Join Date: Feb 2014
Location: Central PA
Posts: 41
Default

Quote:
Originally Posted by SloopJohnB@mac.com View Post
I have both…the bentley hard copy and the eBahn DVD. The problem with the eBahn DVD is it only works on Windows XP…I have Windows 7 Professional and have to run eBahn with a virtual PC. It's a pain to boot up the virtual PC. Bentley has told me they're working on upgrading to whatever, but I'm not holding my breath.

Sometimes I just want to sit down with a real service manual/book rather than filthify the keys on my laptop….
Yeah, and with me being on Home Premium, it's an even bigger pain.
No worries, though. I have some options for digitizing my analog book when it gets here, if I ever feel the need.
Besides, I like having a book around, too. Watching em get grimy over the years serves as a pretty good reminder of how much money they have saved me. And I get the feeling this one is going to be well worth it.

Thanks again for the input, guys. Hopefully I don't run into too many problems with the maintenance I plan on doing myself, but it's nice to know I can always bug you all if I do.

As for my gremlin, I'm pretty sure he lives in my turn signal stalk. Gonna try that next, will post results when I do.
BeOhBe is offline   Reply With Quote
Old 03-14-2014, 03:25 PM   #20
AudiWorld Super User
 
Join Date: Mar 2003
Posts: 5,961
Default

2nd this.

if you cut apart a factory line its not a "rubber hose" - its a 3 layer rubber, nylon mesh, rubber hose that is likely more durable than most SS braided bling, and will not balloon either. Im sure once that was true, but not on these cars, not today.

Grant
__________________
glenahan@vee-eff-email*dot*net
Just Me is offline   Reply With Quote
Old 03-14-2014, 03:25 PM
AudiWorld
Audi R8




Paid Advertisement
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 08:01 PM.


Copyright 2014 AudiWorld.com Audi Enthusiast Community