Perform function check on trailer hitch with electrical release

AR31.19-P-1451ME

Perform function check on trailer hitch with electrical release

25.07.2019

Model

167

with code 550 (Trailer coupling)

except code 460 (Canada version)

except code 494 (US version)

except code 496 (Mexico version)

except code 625 (Australia specification)

Modification notes

22.07.2019

New operation steps added.

Operation step 1, 4

1

Warning message

S 142/2

Liftgate fully electric trailer hitch push button switch

S 142/3

Driver door fully electric trailer hitch switch



Check

1

Switch on ignition.

2

Operate driver's door fully electric trailer hitch switch (S 142/3) or liftgate fully electric trailer hitch pushbutton switch (S 142/2) and release ball neck.

 If the ball neck is not engaged, the light-emitting diode on the driver's door fully electric trailer hitch switch (S142/3) or the liftgate fully electric trailer hitch pushbutton switch (S 142/2) starts to flash.
In the instrument cluster (A1), the warning message (1) "Trailer coupling slewing" appears.

3

Ball neck moves into the end position.

 The light-emitting diode on the driver's door fully electric trailer hitch switch (S142/3) or on the liftgate fully electric trailer hitch pushbutton switch (S 142/2) goes out.
The warning message (1) in the instrument cluster (A1) goes out.

4

Switch off ignition.