SL-Class (R231) 2013 on: Discussion on the SL550

SL/R231: Trouble finding a Oil Filter Cap Wrench

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Old Mar 27, 2026 | 01:33 PM
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2019 SL 550
Trouble finding a Oil Filter Cap Wrench

So far I have ordered 2 different Cap wrenches and neither one of them will fit. Both were too tight and would not slide onto the plastic filter cap.

The Motivx MX2372 72.8-74mm x 14 Flute, and the Lisle 73-74mm x 14 Flute.

What am I missing here? Can someone please recommend a hight quality filter cap wrench that will fit?

2019 SL 550, 4.7 bi-turbo engine.

Last edited by Billy V; Mar 27, 2026 at 01:42 PM.
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Old Mar 27, 2026 | 07:04 PM
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Old Mar 27, 2026 | 07:49 PM
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Old Apr 8, 2026 | 07:21 PM
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Old Apr 9, 2026 | 12:02 AM
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Apparently I had the wrong model cap wrench.
The 74 mm 14 flute is the one to get- not the 73.8 through 74
Motivx swapped it out for me and the new one fits perfect
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