Audi S4 B6 Avant V8 4.2 (P1347 fault) - Timing Chains Replacement / Camshaft Adjusters

This Audi S4 imported from Japan was brought to us with engine light on. Car was misfiring after a while and there was rattle coming from the engine. VCDS showed these fault codes:
P1347 - Camshaft position sensor bank 2 G163 / Engine speed sensor G28 incorrect correlation
P-0300 - multiple misfire
P-0304 - cylinder 4 misfire
P-0306 - cylinder 6 misfire
We checked the timing in measuring blocks 091-092-093, nothing was wrong with the timing at the time.
After the engine was out, timing tools came on nicely, everything was as it should be. Last thing what we checked were the camshaft adjusters. After we opened them up, the bank 2 adjuster had signs damage. As you can see on the video, hole in the plate was slighty worn out.
After qucik chat with the owner both adjusters were replaced along with timing chains and upgraded RS4 bracket. We also reseal the whole engine, changed most of the gaskets, refurb the rocker covers and engine flush after.
Also the headliner wasnt the best, so it was taken out and retrim fully.
Last small bits like rear parking sensor and windscreen wipers were fixed.
This was propably the lowest milage S4 we ever had in! It was a plessure to work on it so the future classic can run again with no issues.
SEEYA in the next video!
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[@lamachhorne9043]

Your tutorials are really well done. My only complaint is that the music is often way louder than your voice recording.

[@VAGTechnic]

Yes ! Hopefully the newer videos are better 😉🤟

[@hossein3867]

You make it look so easy, wish I had a mechanic like you near me CT/USA. 2005 S4 convertible, 44,000 miles, I often consider selling just because I know that if anything goes wrong, it's a bucketful of money. Luckily, never heard any rattles, but $2000 to change the AC compressor, because the seals went bad and it leaks 😞. Keep up the good work.

[@davidphillips5430]

Fantastic video guys. This is actually one of my customers & I was the one that initially diagnosed the chain problem hence him coming to you. I wish I had the time & the enthusiasm to do these videos as I get great pleasure watching them. Keep up the good work. 👍

[@VAGTechnic]

Oh, nice! Thank you very much for your kind comment, we are trying our best. :)

[@bcruzin28]

@@VAGTechnic i have question once the upgraded chain guides with metal backings, tensioner, camshaft plates been replaced what is the life or miles/km it will last with for a peace of mind. I live in sunny California with proper warming up and occasional oil changes at 3000 miles. Great video!

[@VAGTechnic]

@@bcruzin28 hi, first one we done was something like 4-5 years ago , no one contact us since . Guids probably 4ever now , only other part what use to worn out are camshaft adjusters

[@JohanH1990]

MK4 Golf owner here, with TT front suspension. 2003 Pacific with an 1.9TDI. Love youre video's!

[@NDZ446]

Good informative video hoping for more future videos of you diagnosing an building the s4 an rs4 engines, your very knowledgeable about this engine not many people who can do these cars now a days keep up the good work looks like honest guys showing the customers an being transparent with everything done💥

[@VAGTechnic]

Thank you for your positive feedback. We have more videos coming out with S4 and RS6 soon. :)

[@NDZ446]

@@VAGTechnic taking pride in the quality work 💪 love these 4.2 v8 engines. Bet you get a few 4.2's in your garage?

[@NDZ446]

I'm coming to see you.. with my s4. Watching this video again.

[@proudpureblood.9847]

Getting hooked on these videos , just not so sure why ! More please

[@woooster17]

That is a lovely condition S4.. I’m all about the standard factory condition..👌🏼

[@scottaspden7235]

Looks like a lot of work there.. excellent informative video, keep them coming.

[@GeoffInfield]

I replaced every slipper/guide in the bellhousing plus the adjusters (I had way more wear, a long slot out of the locking pin hole on both) but DIDN'T replace the chain tensioners on the cylinder heads figuring I could do them in the car having seen a video on it. Sadly it appears that the tensioners on the heads - which fed the cam adjusters - was likely the root cause of the entire problem cos as soon as the oil gets over 90C I have to hold it at 1100rpm at traffic lights or my brand new adjusters go 'clack-clack-clack' as the pin fails to engage in the hole and the cams flap around (I could hear it and see the cams 'jump' while turning the engine by hand with the valve covers off before replacing everything due to the slot) :(

[@nelsonmercado75]

Wow you can actually eat off that engine when you got done with it 😮beautiful job

[@clonSanG]

Very professional videos I have a Japanese a31.4turbo and loaded with extras English versions doesn’t come close very good on juice

[@VAGTechnic]

Thank you for your positive feedback. :)

[@MrTopgolfer1]

Very informative video,,great work, keep it up 👍

[@VAGTechnic]

Thank you very much! :)

[@chrismaund2134]

Great video , I've got the same fault codes .

[@simonau7800]

This made me miss my B7 S4. It had timing chain tensioner issue which bent the valves.

[@BigFurryCat]

@Simon Au why would you miss it if it bent the valves?

[@glenbooth7903]

Min has 54 k and it's a B7 2005 just had ta put a new throttle body on.. Great vid 👌👍 and it sounds so good

[@VAGTechnic]

Cool! Thank you. :)

[@mach1743]

Nice work mate...👍

[@VAGTechnic]

Thank you. :) We appreciate it.

[@notyouraveragegoldenpotato]

I have a nogaro s4 that just threw the AC belt I replaced, pretty sure it wiped out the front main seal because I suddenly was pouring oil out the front. And there is a very loud metal on metal knocking on bank 1. I have 4 audis, have built the heck out of many, have a stg 3 b5 s4 I built, I build my blocks from bare block up, lots of 1.8ts. Used to restore and modify classic porsches for a living so im not the average idk anything about fixing modofying snd tuning cars.. but I've never done any serious work on the 4.2 and I'm really not looking forward to this job because I just have an engine hoist. No lift. Do it in my garage. Weird thing is, the noise sounds very clearly like it's coming from the front of bank 1.. very front. Found tons of gunk and some oil in between the head and the intake manifold. Need to rosstech it tommorrow and re-check timing. But it was around like -8 if I remember when I checked a couple weeks ago. Ideas?

[@gollcartagenaesp]

Hi, Talking about these cam adjusters, I have seen a eBay company that will re-machine the worn adjusters for £200.00 , do you recommend that? New cam adjusters are minimum £600 each!!

[@danielc032]

Hi I've got a the same problem but back 1, I had the chain replaced last year. Is there a chance it could be just the sensor or will it def be the adjuster?

[@sweeneytodd3076]

Mine just happened changed the sensor & she looks fine do i need to be worried?

[@bluemoth1879]

Niceee job. Very professional. 🤟🏼🤟🏼🤙🤙

[@VAGTechnic]

Thank you, we are trying our best. :)

[@acedricw]

Great video. While using the VCDS you said the group 91 and 92 values were a little high. What range should they be in. I have a 2006 C6 A6 4.2 L I just bought used with about 56,000 miles.

[@Rob-wx2rq]

Was wondering the same thing... Hopefully he can reply! Also am I the only one to be surprised of this metal wear with just 60,000 miles? Is it a common problem???

[@degfx]

I’ve got a s4 b6 with 82k on the clock. I’m not to far away from you guys. What would it cost today for this service? I get the fear all the time about the timing chain

[@mecanicaradisch3787]

video muito bom. ajudou muito . sucesso ai

[@VAGTechnic]

obrigado, mais vindo

[@acedricw]

What is the whining sound on startup?

[@realhusky]

Ex VAG tech here, very well done. I was just gifted an A8L with this same issue. What was your total cost for parts and how long did the job take?

[@jakeb9520]

What year A8L was it? Also what was the kms on the car? I've got a 2012 A8 with engine code CDRA.

[@robertslegers257]

Varnish seemed a little heavy for such low miles. Do think they may have used improper oil?

[@joneasheim9794]

My Audi s4 4,2L v8 2003 model rattle 1 or 2 second when it starts. Is it something to worry about? Reading a lot of things that that’s just How it is. Timing chain changed for 30 000km ago.

[@nwskipro]

At 5:30 you say the cam adjustment (groups 091/092) are higher than you'd expect for idle. Mine are about the same, it drives great, no fault codes. But I have a terrible tick after a full timing chain job, which is partly why I keep an eye on these groups. What values do you like to see in groups 091/092/093 and why?

[@nwskipro]

And at 14:47 is the first time I'm hearing the dowels are worn - that noise when you wiggled the guide makes me wonder if my noise could potentially be something as simple as a worn dowel. It's either that or a faulty chain tensioner, which I'm not sure how to test for.

[@yyz125]

What actually caused the adjuster wear...and what is your opinion on the 3.6 q7...115k miles

[@pajerofan22]

Do you think it's worth the extra investment for the rs4 timing chain guides?

[@VAGTechnic]

Yes

[@oliviahancock8753]

Great job. My dads Audi s4 is from Japan and has only 47k miles. Why so much to do on a low miles car

[@khalifaskho4223]

Is it the same engine as 4.2 in D4 A8? And hows the tuning potential?

[@VAGTechnic]

0

[@khalifaskho4223]

@@VAGTechnic what’s that means? Shitbox?

[@lamachhorne9043]

Don't you have to service the A/C once you disconnect the lines?

[@VAGTechnic]

If costumer don’t ask for It no … vacuum test afterwards, oil and AC fill up

[@lamachhorne9043]

@@VAGTechnic Well I was just curious since that part wasn't in the video. For DIYers watching, they need to know once u open the system, vacuuming etc. is absolutely necessary.

[@fatihkucuk8263]

🧿👍

[@dp8685]

Why do Audi and parent group engines always leak oil. I had a 200k 2.4 type s Honda Accord and not a drip.

[@makantahi3731]

ask same for bmw, to have to go to bmw service and pay unnecessary service that could be prevented if they did not put additive that speeds up rubber seal disintegration

[@miketrell1853]

Are you located in America?

[@VAGTechnic]

No, United Kingdom.

[@gurmon]

im sending my car to you....

[@VAGTechnic]

Looking forward. :)

[@badassbikerst]

How much did this cost?

[@makantahi3731]

do not ask if you do not sit on ground(probably 3-5k)

[@n54kris73]

Cheapest kit online is 1200..labor probably aroun 4 5k..expensive

[@IronJeweler]

Like

[@jamalmapp3242]

I have the same problem! How much is this job?

[@VAGTechnic]

Hello. Please contact us on our email [e-mail] for any price enquiries. Thank you. :)

[@thomaskeller7570]

Hallo Kann mann euch auch auf Deutscher Sprache Kontaktieren per Email?

[@VAGTechnic]

English please or google translate 😅

[@oldjackrussellpub8240]

For a mint car it has a lot of problems lol jokes

[@VAGTechnic]

Mint body work can’t give you any warranty from mechanical issues 😂

[@oldjackrussellpub8240]

keep up the good work respect

[@ofeliawotsits6080]

I would never have one of these engines as they are so complicated with so many parts that can wear out. Those plastic chain tensioners are just a joke by Audi.

[@VAGTechnic]

What you expect after 15 years ? No service necessary till ….?

[@makantahi3731]

that plastic is intended to wear, but plastic water pump or housings of thermostat .... are joke, and it is made to fail

[@DVRodriguez-vw9fr]

No wonder, ITS AUTOMATIC 😮😮😮😮 AUTOMATIC in any S4 suck.....

[@lhp7912]

Dont speedup the video please