Audi A8 D3 - V8 Petrol Engine Issues (4.2 / 4.2 FSI) 2002-2009 

I'm about to replace and injector. the job seems easy

Thanks Emerson! That makes me feel better. These cars tend to scare people even though resale is low. I do my own repairs so unless a part is outrageously expensive, it is worth it. Even if it is, I am still not paying for labor. I have an 08 S5 and it is so fun to drive. I love the A8's. Pure Luxury.

You dont have both you have one or the other

Check your pcv valve/oil separator

​@@fallengamingtv6945If this thing breaks down, it will cause blue smoke.

carbon clean

Yooo I got the exact Sam car as you 2007 audi q7 4.2 fsi premium it's a really great car although car have a problem at every single piece even the seats and exhaust but it still drive smooth and fun to drive and sound loud it has a weird v8 sound like old muscles car at low rpm almost full throttle so yeah it's really good car I don't feel of all these problems while driving

You'll be more than okay that's a nice car. Also the last time I was at the Audi dealer the only thing with a V8 they had at the place was a Q8 the A8 on the floor was only the 3.0T. The sales man even admitted that Audi doesn't know yet if the 4.0T will end up being as reliable as the 4.2 was.

The 3.2 FSI is such a nice engine!

What issues have you gotten with the 3.2 FSI? Mine is 124,000 km and replaced alternator, spark plugd, some ignition coils at the moment

@@user-pm3dx4te4f I sold the car in April with about 143k miles. The most expensive issue I had was the upper coolant hose cracking. You will also have to do valve cover gaskets at some point. Other than that, nothing super major; I do consider myself lucky for never having timing chain issues.

Did you ever figure this out?

older

@@differentcarreview-dcr tnx for reply

-on the intake manifold you got 2 sensors/potentiometers on both sides of the manifold, one should be for bank 1 the other for bank 2 now, there is a technical service bulletin for the seals of these sensors - the rubber seals on them can deform - making the linkage get stuck a bit - and this can cause your faultcode ( here is a link for this issue static.nhtsa.gov/odi/tsbs/2012/SB-10063831-7690.pdf ) occasionally the sensors themselves can be faulty too - if the sensor is faulty then you also get this fault code -next there are two electronic actuators an upper and a lower, in your case the upper actuator should be fine, but the lower actuator can be already faulty/worn - and this can also cause the fault code -lastly, inside the manifold the plastic flaps can be seized a bit or too loose - in this case you can also can get this fault code so long story short: first check the seals on the sensors/potentiometers if the seals are fine and the metallic shaft is moving freely then the issue can be most probably with the sensor, with the lower actuator or with the flaps inside the intake manifold if you don't want to spend much money on the various parts then there is a possibility to remove the flaps inside the manifold and to deactivate the actuators - there should be enough info on the internet about this

different car review ok thank you for responding I did order one sensor from parts geek and I will replace it once it comes in since one of them is a bit sticky and the motor is kind of loose but not too loose so and if you push it down and start the engine it moves a little and that’s it I just have to find oil seals for the sensor.

And one more question until I get the part is it ok if I drive it?

yes you can drive it, but I would be thinking about deleting those flaps in the intake manifold / or at least inspect them, since these plastic flaps can also fall apart and in the worst case - they can get sucked into the valves - not a very common issue but it can happen

different car review one more thing I want to make sure when looking at the engine is bank one on the left side or right side near the overflow tank?

We just picked one up for very cheap. Has 117k miles on it and an engine out service is in the works. The idea is change the timing chain and every gasket, the tensioners and then the car is good for 200k miles. I have seen many examples of these engines lasting a long time, usually a catastrophic failure occurs when the owner avoids an engine out repair. The car is worth such repairs as long as it's replacement cost is less than the repair. It's an $74,000 luxury car so a $2200 repair bill to essentially replace everything that can break is worth it. Also, engines and transmissions are actually cheap for this so if you do ruin one. The body and frame are aluminum so those will last forever. Electronics can get expensive I'd a computer problem happens

@@anthonyb.9336 where do you find someone who would do that job for 2200? It's over 8 grand by me just for the timing chain.

@@97336cfI imagine he’s doing it himself and he’s just quoting the price for all the parts. There’s no way you could do an engine out service and replace all those parts for just $2200, it’s impossible

Wow are you serious, on which model is that

@@kristiankumanov5732 on my audi a8l. It's at 555 000km now

Now at 578 000km.

The newer V8 FSI is the same the other one is not

@@differentcarreview-dcrYou can actually buy the 4.2 MPI with 335hp in the C6 A6; they’re rare but they exist.

@@Swiss4.2 yeah but in the C6 that engine has a timing chain, so its not exactly the same

@@differentcarreview-dcr oh didn’t know, I saw the HP and the fact that it’s port injected and assumed its the same engine in the A8. Thanks for the correction

Same

He sounds nothing like Indian smh ,now he’s accent is European (more like Russian )

I wouldn’t say it’s a POS but definitely has its issues, the engine is basically backwards with all the timing chains and important components located on the “back” of the motor. it makes it a mostly engine-out type of job but like you said when it doesn’t have its issues that thing is sweet and purrs like a cat 🥰

azé mer tudom mennyi pénz, energia és ideg megjavítani és megtalálni ezeket a hibákat, borzaszto ! 😂

@@differentcarreview-dcr na erre nem számítottam:'D jók a videóid, sokat megnéztem már, így tovább:D amúgy f@szán összefoglaltad a hibákat

kösz !