S63 AMG, S63 AMG 4Matic, S65 AMG (W222, V222) 2014 -2021

S63l M157 - P2097 Error Code

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Old Dec 20, 2025 | 09:18 PM
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kdon's Avatar
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S63l M157 - P2097 Error Code

P2097
P2097

Hi guys my CEL came on, ran a obd scanner and got these error codes, anybody ever ran into this issue and can guide me please?
I'm assuming it could be my O2 sensors?

Last edited by kdon; Dec 20, 2025 at 09:19 PM. Reason: spelling mistake
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Old Feb 18, 2026 | 12:08 AM
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Nadasive's Avatar
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From: Las Vegas Nevada
2017 S63 AMG (W222)
Originally Posted by kdon
P2097

Hi guys my CEL came on, ran a obd scanner and got these error codes, anybody ever ran into this issue and can guide me please?
I'm assuming it could be my O2 sensors?
Its a code for the rear 02 sensor bank 1. After the cat. Ecu is throwing a code cause either too much fuel or not enough oxygen is getting past the cat on Bank 1

Pretty sure Bank 1 is passenger side btw

does it have a stock exhaust ? Stock tune ? If its stock check the downpipe to turbo connection, the flex pipe, flanges, v-bands, check out bank 1, and do it cold. If there's an exhaust leak you'll likely hear it cold start

Can you do a live data read of the rear o2 sensors ?
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Old Feb 18, 2026 | 12:11 AM
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2017 S63 AMG (W222)
Do you smell fuel? Does that right side exhaust tip have black soot on it ?
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Old Feb 20, 2026 | 08:43 AM
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Update:
So my right catalytic converter was on its way out, under load/heavy driving the smell was more apparent than driving normal/casual.

I ended up going with a decat downpipe 😅 no more issues with cat in future now.

My turbos are alot happier now 😁
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