E63s OPF/GPF Filter
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Newbie
Joined: Mar 2020
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E550 Coupe
I contacted MBUSA email and they said 2019 and above have the OPF filter but im still having doubts because a lot of people mentioned that the c63s coupe 2019 facelift has the opf filter but doesnt have the pop and crackles like the 2017 - 2018 have, not sure why not a lot of people talk about the e63s 2019 and above on whether or not it has the opf filter
Out Of Control!!
Joined: Nov 2018
Posts: 11,398
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From: San Francisco Bay Area
2019 C63CS
The OPF is only on European models based on evidence that has come to light so far. The OPF is option code 598 and is not found on US spec build sheets, whereas it is clearly listed on EU build sheets. At least one member has also had his exhaust replaced on a 2019 C63S and there is no physical evidence of an OPF. Only the cats are there. The lack of pops and crackles is below about 4000 rpm due to increasingly stringent noise regulations and the fact that the new noise regulations have to be met with the valves open now, whereas before they only had to be met with the valves closed. Above 4000 rpm or so the FL C63 pops and crackles just fine. IMO, they are actually more natural this way, because they only occur when the car is driven harder.
Last edited by superswiss; Mar 7, 2020 at 02:59 AM.
