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| Disconnect electrical connection -1- on throttle valve control unit -J338-. |
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| Unscrew bolts -arrows- and remove throttle valve module -J338-. |
Installation is carried out in the reverse order; noting the following in the process: |
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| Clean the sealing surface for O-ring. |
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| Renew gasket, making sure that service lug is correctly positioned on oil seal. |
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| If a new throttle valve module -J338- was installed, adapt engine control unit to throttle valve module -J338- using a → vehicle diagnosis tester in „Guided functions“. |
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