Perform Function Check On Trailer Hitch With Electrical Release - AR31.19-P-1451MFA
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Model 118, 177.0/1, 243, 247 with code 550 (Trailer coupling)
| Check | |||
| 1 | Switch on ignition. | ||
| 2 | Operate trailer hitch switch (S143/3) in liftgate until the ball neck is unlocked. | The warning message "Check trailer lock" appears on the instrument cluster. |
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| 3 | Pull ball neck out until it latches into place. | The warning message in the instrument cluster disappears. |
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| 4 | Switch off ignition. |