Audi A5 / S5 / RS5 (B9) Discussion forum for the B9 Audi A5, S5 and RS5 2018 model year and up

Rocker Arm replacement , is it worth it ? Need advice

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Old Jun 16, 2026 | 06:54 AM
  #1  
S5dude2022's Avatar
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Default Rocker Arm replacement , is it worth it ? Need advice

Here is my situation:

2020 B9.5 , 125,000 KM on it
Manufactured 01/2020 with updated pistons
Had the engine bore-scoped - no piston slap issues, engine is clean
Just got brakes done all around
Just had Audi 120K major service
No other issues with the car
Car developed ticking/misfire Cylinder 1 only when engine is cold, according to Audi TSB's these are typical symptoms of failing rocker arm bearings.
My indy Audi mechanic agrees this is 95% the cause of the ticking and misfires as per Audi TSB and my symptoms
Repair Estimate is $5-7K CAD ($4K USD)
Car wholesale value is around $24K CAD ($20K USD)

The big question is: is it worth dumping so much money into this repair ? Everything else is flawless and I just spent $3K on brakes/major service.
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Old Jun 16, 2026 | 08:46 AM
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Yes. If your mechanic is correct, and if you really like the car, then I would say it's definitely worth it.
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Old Jun 16, 2026 | 09:50 AM
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Man I really would not want to hear about rocker arm failure on post-2018 S5s. Seemed like that was a closed book but I suppose not.
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Old Jun 16, 2026 | 02:12 PM
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Is there a way to confirm the issue before spending a lot? Your question is about the financial wisdom of the repair, but I think the responses you have so far may have hit on a larger question - "If your mechanic is correct...."
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Old Jun 17, 2026 | 07:44 AM
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Originally Posted by Cabbie57
Is there a way to confirm the issue before spending a lot? Your question is about the financial wisdom of the repair, but I think the responses you have so far may have hit on a larger question - "If your mechanic is correct...."
EXCELLENT Advise!

As someone who has lived with the rocker arm fear for the 8 years I’ve owned my S5 (which I still love) I’ve often pondered that same dilemma. I have the extended warranty for another two years though I know that warranty coverage decrease as the cars age increases and there does not sound like anything is amiss under the hood. Still, I wonder …

—John
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Old Jun 19, 2026 | 10:35 AM
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Originally Posted by TheTurbanator
Man I really would not want to hear about rocker arm failure on post-2018 S5s. Seemed like that was a closed book but I suppose not.
They can still fail, it is just that the bearings don't fall out so easily when they wear and lead to catastrophic failure by being sucked into the engine.
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Old Today | 03:05 PM
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Originally Posted by S5dude2022
Here is my situation:
The big question is: is it worth dumping so much money into this repair ? Everything else is flawless and I just spent $3K on brakes/major service.
In my opinion, this is only worth doing if you plan to keep the car for several more years.

Basically, tomorrow the cars trade value will be the same whether you fix the issue or not. The wholesale buyer (dealer, Carmax, auction ect) isn't going to care enough about the ticking noise to impact the trade value.
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