Prepare Test Valve Block - AR77.37-P-4205-01LWR

WARNING: This page is about a different car, the 2023 Mercedes-Benz C300, 2022 Mercedes-Benz C300, 2021 Mercedes-Benz C300, 2020 Mercedes-Benz C300, and 2019 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.

Model 205.4

Model 217.4

Model 238.4

Fig 1: Identifying Valve Block (230 589 00 91 00)

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Fig 2: Identifying Record Plug (129 589 00 91 00)

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Fig 3: Identifying Adapter (171 589 00 91 00)

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Fig 4: Identifying Tester (126 589 14 21 00)

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Connect test lines (2, 3) to valve block (1).
Connect test line (3) to adapter (4).
Connect tester (5) to adapter (4) with line (6) .
Connect test line (7) to adapter (4).
Plug open connections of test lines (2) and test line (7) with appropriate stop plugs.
Close shutoff valves (8) on valve block (1).

Courtesy of MERCEDES-BENZ USA