‘13 CLS 550 4Matic shuddering 2k RPM

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Old Aug 15, 2024 | 12:15 AM
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2013 CLS 550 4Matic
‘13 CLS 550 4Matic shuddering 2k RPM

My CLS has 117k miles and has just started shuddering under light acceleration at around 1500-2000 RPMs. There’s a little fluctuation in the RPMS when this happens. If I accelerate harder, it doesn’t do it at all, it’s just when I’m babying the throttle. Doesn’t happen at idle, not necessarily just when shifting, just around lower RPMS at light load. Not even while coasting. I’ve read a lot into it and have seen that it could be anything from the driveshaft, motor and trans mounts, CV shafts, the torque converter, or even an obstruction in the air filters. Before I spend several thousands on random parts trying to fix it, what seems most likely with these symptoms? No check engine lights or codes whatsoever
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Old Aug 15, 2024 | 11:39 AM
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2013 CLS 550 4Matic
Anyone think it’s likely to be coil packs and plugs?
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Old Aug 19, 2024 | 12:58 PM
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2013 Weistec 540/715 tuned CLS 550, 2008 E350, and '07 Jaguar S-Type R
Originally Posted by JosiahCLS
Anyone think it’s likely to be coil packs and plugs?
I would pull codes using a diagnostic reader. If it's got a random misfire, it will show.
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Old Aug 23, 2024 | 10:49 PM
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2013 CLS 550 4Matic
It was just the transmission fluid. It’s all good now
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