What Killed This Audi RS Q3 Engine?

Another broken RS Q3, but what did the serious damage to the 2.5ltr 5-cylinder Daza engine? We take it apart to find out...
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[@robinnewbold9399]

Hopefully a constructive comment: maybe for close-up shots eg the valve seat, maybe try to add a few seconds of still image in, which might be a little clearer and could be highlighted/annotated, compared to a moving video. The video was clear, but maybe could have been easier for the viewer to focus on if it was a stationary image. If that makes sense.

[@davewilshere]

Push pause…

[@GT380man]

If you slow it right down and pause frame by frame, you can expand the image. Your feedback is still valid, as it would make having a good peer at it that bit clearer. Sad end to a performance head. Pretty expensive in parts alone. And how much confidence would you have in any of the components in the affected cylinder? I’d take advice on the valves etc.

[@user-hm1wg2ri4w]

When i worked as a mechanic in the WRC, we had a saying, ‘oil is cheaper than metal”

[@843idfa]

Metal is cheaper than labour 😅

[@sambolton1970]

I recon there should be a competition where a free hoodie is given to the correct count of the word (not "SO") but now "yeh yeh" 🤣

[@hamradiostation_M0UGE]

I was interested to know what level of damage dropping the tip would do after watching one of your videos where you said about the R8 on the dyno dropping the tip and it cost you 45 k ...This was a really informative video and again, you've taught me something new ! Love the channel mate already looking forward to the next one !

[@andyglegg]

Needs to buy himself a torch instead of using his mobile phone all the time 😂

[@CrispysProjects]

even a Snap-On torch is cheaper than a new phone

[@LedburyMike]

Dav,Please stop saying yeah to Rics comments all through the video. Its worse than Ric saying 'so'. Great vids. More bike stuff please

[@markysparky1965]

Davs a proper sycophant.

[@knight2425]

Loving this type of content, please show us more repairs like this with the tech talk.

[@steffydog]

Always a great video, thanks guys and Kate 👍

[@REPerformanceUK]

Glad you enjoyed it thank you

[@iankelleher5072]

Another great video. Dont see many places with the boss getting his hands dirty. The knowledge you have and share is amazing

[@REPerformanceUK]

Glad you enjoyed it. Thank you

[@johnrowell942]

Hope the owner of this engine. Watched this video 😢 and thinks again about oil changes and full send of the rev limit. Nice video of how high heat can damage engines. Glad this owner was not running NOS as well. Look forward to the rebuild.

[@jimmcculloch3786]

love Ricky's knowledge and speed of working !!

[@fivedotsdave9723]

He's good at researching on the net and video editing can make the slowest worker look fast...

[@raykaufman7156]

Should have left the engine blindfolded. It must have seen what color car it was going into...😂

[@prebenlohse1684]

Super video….again!

[@REPerformanceUK]

Thank you! Cheers!

[@grahamclifton5849]

Hi Rick, how about a video on RS6 ownership ? pro's & cons on c5/6 models. I'm still looking for the best example & currently 3 are on my list. Basically a buyer's guide. Regards Graham

[@Nicky-wy1ru]

So was it the expensive spark plugs or injector ?

[@bowie3000]

Ground strap on these race plugs are too small to save if something goes lean. I’ve had the same issue with the 8-8 ngk. Looks like I was lucky in that there’s no bore damage , misfires and compression still good. More material on the 7-8 or 7-9 ground strap.

[@user-mz9nl9qx4r]

What caused the the earth tip to come off ? And given the proximity of the plug to the valves could it have tracked out to the valve ? Causing the burnt out valve ?

[@tonyking9235]

SPOT ON LAD WE DONT WANT THAT CRAP ON OUR ROADS. ELECTRIC VEHICLES ARE CRAP .

[@paulfarghi]

Ricky, in your electric car rant... this episode, you state that the Swindon Audi scrap clean up resulted in EMR in Swindon crushing battery packs and destroying scrap crushing equipment. Can't find any references to this anywhere, What is your source?

[@NA-xz4wj]

I'd be interested to see what the DI seals and tips look like, and the flow results. Seen a fair bit of DI failure and it's due to tuners who don't put enough fuel though them in favour of the port injectors. DI's get red hot if not cooled right. @Rick. is this bad fuel or bad fueling do you think?

[@steveswain4646]

Hi Ricky, I have a new ttrs that's done 3k. How often would you recommend changing the oil and what oil is best for the daza engines. More soap box, please love your rants. Thanks steve

[@samrodian919]

I've been doing 3000 mile oil changes for 30 years in my cars, and never had an engine failure ever. Including Range Rover V8's ( four of them, one of them a supercharged model as well) I would recommend that for everyone's car irrespective of what the manufacturer says, unless they specify an even shorter mileage span which I very much doubt.

[@williamholmes9129]

Any video of the engine running/misfiring for interest?

[@johnriley9214]

Looks like this engine has been run for quite a long while with the damaged valve for the valve to be burnt away that much.

[@REPerformanceUK]

Yes I agree John!

[@redchemicalsltd2324]

Nothing like stopping when you hear something is not right😂....or maybe just stop when she is misfiring with zero compression😂

[@markysparky1965]

I think the old saying 'more money than sense' probably applies in this scenario.​@@redchemicalsltd2324

[@archybrooks6938]

Ricky, love the content, and totally agree with with you on your soap box part about electric cars, do you think the truth about them should be more publicised nationally, let's bin the mobile battery.

[@TheStandardOperator]

A question in relation to the 2.5tfsi? What kind of things can you do to mitigate or reduce the risk of this kind if thing happening? Reg oil changes? Injector testing? Spark plugs, etc?

[@royclarke8455]

Ricky what ngk race plugs can I use in my stage 1 Rs6 c7,there’s so many different heat ranges I’m unsure

[@ttrs_8j_ss494]

Do angle ground strap plugs have any advantage to less damage or less chance of the tip falling off?

[@CrispysProjects]

I'm sure I've had a Stock map DAZA started to burn out the same valve, not as bad as that - caught it in time on the Missfire - That's what the M in EML stands for

[@Ia_Cugem]

5w30 vs 5w40 what is the best for DAZA ? Thank you...

[@colinscutt5104]

that valve damage looks pretty similar to an Oxy torch cut

[@thomasclarkson710]

What spark plugs do you recommend for a 2012 R8 GT?

[@davetreanor5303]

Are there any preventative measures other than running a two step colder plug on a stage 2 Bmw S55 engine that might prevent the tip of plug coming off?

[@SB-vb8ch]

Quite a variance in combustion chamber deposits across the non damaged cylinders.

[@stevewhiting5672]

That valve looks like the one I had repaired in my K1100 a few years ago, it sounded like a tractor prior to the repair lol😂

[@belly450]

I remember my EVO 5 servicing. every 6 months or 3000 miles.

[@Mr_Frazza]

That was really cool, not for the dude who owns the head but for us it was cool to watch haha

[@jdmimportlogistics]

Can't wait for some Lambo Urus material!

[@Driver_88]

Makes me cautious to even go stage 2 on my 8Y

[@user-jt4tg3ek2g]

Aston please

[@feroz78638]

How much would this cost to fix 😅

[@ayub754]

Hi if anyone can help me I have audi rs3 2018 was driving perfectly until was parked for 2 months outdoor cover parking the battery got flat and had acid lead on terminal we started the car with jumpers the car temperature going high and fan is coming very loud other mechanic saying to buy new battery other saying bleed the pipe please advise thanks

[@knight2425]

I would take the broken RSQ3 cause the others will break sooner or later also but will be more expensive to fix

[@ianbarnes8593]

The valve damage is referred to as “guttering” in my industry; Caterpillar gas fuelled engines.

[@michaelw4620]

In your guys opinion what would you say was the best 5 cylinder RS engine (code)? Asking As I have a Golf R that’s minus an engine! It will be going RS. 👍 Awsome channel.

[@danieljadorie829]

I believe they would tell you the DAZA engine. It has no OPF and has a more aggressive exhaust camshaft. Some of these features remain or are updated based on which part of the world you're in.

[@michaelw4620]

@@danieljadorie829 uk here 👍🇬🇧

[@danieljadorie829]

@@michaelw4620 For someone in the UK, I would get an engine from a 2017 or early 2018 RS3. The engine code is stamped on the block. The one that came after the DAZA is called DNWA. You will want the DAZA. That's the best sounding with the most tuning potential.

[@porkster5924]

When you racing at Oulton Ricky?

[@REPerformanceUK]

22nd-23rd March

[@porkster5924]

@@REPerformanceUK NG Road Racing 👍 I’ll be there doing 📷

[@Nate6874]

Forgive my ignorance but when you say "plug dropped a tip" I'm assuming that means spark plug. How does the tip drop? Is it a case of it fractures under heat and comes apart or is a poor manufacturing process?

[@paullinnitt5450]

At 2.50 you can see the plug in the cylinder has lost the bottom electrode. Compare it to the plug in cylinder 3.

[@seanscott1580]

Poor designs rick as the norm mate on these rs engines

[@laurieharper1526]

Not had the oil changes it should have? Save £100 on oil and a filter and end up with major damage. Smart move on the owner's part, huh?

[@garymurphy5133]

as a novice why would no oil changes cause a spark plug to fail.

[@neilbathe7752]

The head tool still seems really awkward to use - assuming that is just the nature of the beast, and there is nothing much more that can be done...

[@Kenny-Somafunk]

It needs an electric worm gear drive to aid in travel left to right/right to left operated from a foot switch. It'd be quite simple to rig something up to do the job.

[@andydebecker1192]

Cyl 3 valves look rich and the Cyl 2 lean...

[@Ia_Cugem]

Hello , stock oe plugs for stage 1 DAZA engine are ok ? Thank you...

[@tonyking9235]

NO BUT I WOULD TAKE THAT SKYLINER

[@julianginniver5785]

Not knowledgeable about VAG so what is a DAZA? Is it just the engine code or is it a short version of something?

[@TheUberdude14]

It's indeed the engine code for the newer 5 cil VAG engine's

[@julianginniver5785]

@@TheUberdude14 thanks for that dude 👍

[@Kenny-Somafunk]

There are two variants of 5 cylinder RS engine, the Dazza is the better engine for higher power capabilities

[@ventouxR]

cepa, cepb, daza, dnwa

[@armo28]

Not a fan of SUV’s but the DBX. It isn’t broken. I assume.

[@andycoyle4124]

Hi Ricky, I would change the seat anytime I had a torched valve, but you'll know that anyway cheers

[@leobates7704]

😮

[@yazctr]

Please fix the mclaren

[@raykaufman7156]

How to turn your Audi into a gas cutter...😂

[@justso1823]

You can tell a Moto Racer by his hat that he wears 😂😂😂

[@REPerformanceUK]

😂😂

[@LuisGonzalez-ds5mj]

That’s what happens when you use plugs with hard tip materials like platinum, iridium, etc intended for extended service intervals on a performance engine. Good old copper plugs would have avoided all that carnage.

[@bowie3000]

Don’t think it’s the tip that’s gone here. Ground strap that’s come away ?

[@LuisGonzalez-ds5mj]

It does not matter which side of the plug got loose, the thing is that those plugs can sustain a lot of heat by design, a copper electrode would have melted much sooner on a lean condition. @@bowie3000

[@rewrittenpath]

Hi Ricky. Been watching your content for quite a while now and not only love the videos but I'm also incredibly envious of your knowledge base and experience. Now the arse kissing is over, on to my question. I change my oil every 6k miles and my filter every 12k miles, so oil/oil+filter/oil/oil+filter.....rinse and repeat. Is this a bad practice?

[@nectafarious8842]

Always change the oil and filter together. Why put new oil through a dirty filter to save a tenner?

[@zaarkeru3391]

I mean, child labour in lithium fields is a non issue. Cobalt on the other hand... Though, petrolium refining needs tons of cobalt... Lets not mention that.

[@Dingda.youtube]

Hello sir, I noticed that you have shared many videos of car modifications on your page. Do you have any business in modifying car screens and selling them? I am a manufacturer of car navigation screens and we are looking for an agent for a 9.7-inch Audi R8 product. Are you interested in joining us?

[@scott2495]

Why would you bother taking your car to audi when you can take it to the master