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Mercedes Benz GL (W488)

Customer Service Guide 

Summary of Contents for W488

Page 1: ...Mercedes Benz GL W488 Customer Service Guide ...

Page 2: ...heck Wiring Condition 5 III Check Foot Pedal 12 IV Gearbox Replacement 14 V Door Replacement 17 VI Motor Control Board Replacement 19 VII Headlight Replacement 21 VIII Schematic diagram 22 IX Exploded View 23 CAUTION Disconnect the battery before proceeding ...

Page 3: ...ck and remove the seat Locate the battery harness unplug the connector and use a volt meter to check battery condition at battery side Step 1 Turn and unlock this plastic knob according to the icon Step 2 Unplug the battery connector red by holding down the small clip and pulling apart ...

Page 4: ...tep 3 Voltage Reading 6 0 V 6 5 V Good condition 5 6 V 5 9 V Proceed to Recharge 5 5 V Battery to be recharged if after the stipulated recharging time voltage has not increased the Battery needs replacement Below 5 5 V Battery needs replacement ...

Page 5: ...de II Check Wiring Connection Operation Disconnect and reconnect all plugs and connections leading to the drive board shown below A Motor Gearbox Follow above Point I to remove the seat locate the Gearbox harness underneath ...

Page 6: ...Customer Service Guide VI Motor Control Board Replacement Operation Follow above Point I to remove the seat first and replace the Motor Control Board MCB by below steps ...

Page 7: ...low steps if 1 Replacing the receiver drive board module in the vehicle or 2 Remote control function is not operating as it should Note The remote coding button should be held down for 5 seconds then hold down the receiver module reset coding button for 5 seconds ...

Page 8: ...de II Check Wiring Connection C Dashboard Remove the Steering Wheel and Dashboard to check the connection Step 1 Unscrew then pull up out to remove steering wheel Step 2 Next unscrew these two screws to remove the dashboard ...

Page 9: ...8 Customer Service Guide II Check Wiring Connection Step 3 Pull up out to remove the dashboard and windshield together as one unit Step 4 Check the 4 Pin plug ...

Page 10: ...Check Wiring Connection D Shifter Follow steps above to remove the Dashboard then check the connection of Shifter and Main Power Switch as well Step 1 Unplug this connector Step 2 Unscrew these four screws to remove the Windshield ...

Page 11: ...10 Customer Service Guide II Check Wiring Connection Step 3 Unscrew these four screws Step 4 Lift up the bottom plate to access the switch for Shifter Power ...

Page 12: ...ce Guide II Check Wiring Connection Shifter Step 5 Main Power Switch Step 6 Empty blade the one far away from shifter Red wire Orange wire Blue Pink Yellow Top Bottom Reverse above procedures to re assemble the vehicle ...

Page 13: ...Customer Service Guide II Check Wiring Connection ...

Page 14: ...ice Guide III Check Foot Pedal Operation Follow below procedures to check the Foot Pedal connection Step 1 Turn over the vehicle and push on the smaller lip to loosen the pedal Empty front Step 2 Pink middle Pink rear ...

Page 15: ...13 Customer Service Guide III Check Foot Pedal Step 3 Slide the Foot Pedal into Chassis from right side Press it down in place ...

Page 16: ...Installation Confirm your motor gearbox is installed as per reference images below Motor should insert through hole in car so it is inside the battery compartment if it is installed otherwise tension on the cable will cause failures ...

Page 17: ...Operation Follow below steps to inspect the gearbox or remove for replacement Use a flat head screwdriver to remove the hub cap Rear right passenger side wheel only Step 1 Step 2 Use the flat head screwdriver to remove the snap pin from axle as shown ...

Page 18: ...ustomer Service Guide IV Gearbox Replacement Step 3 Slide the rear wheel off of axle Follow above Point IIB to access the Motor harness underneath the seat then unplug it before removing the gearbox Step 4 ...

Page 19: ... Replacement Step 5 Slide the gearbox out from axle Step 6 Replace easily by sliding the new gearbox onto the axle Fit the gray cylinder through the hold and plug in the white connectors Reverse above procedures to re assemble the vehicle ...

Page 20: ...V Door Replacement Operation Follow above Point IIC to remove the Dashboard first and replace the Car Door by below steps Step 1 Unscrew these two screws on hinge and release the whole door Step 2 Lift up the car door to remove ...

Page 21: ...18 Customer Service Guide V Door Replacement Easy steps to replace the whole Car Door Assembly completely Step 3 Reverse above procedures to re assemble the vehicle ...

Page 22: ...s to remove and replace the Headlight Turn over the vehicle to access and unscrew the headlight washerscrew Step 1 Use a flat head screwdriver to release the two latch locks Step 2 Then replace the Headlight Assembly with new one Reverse above procedures to re assemble the vehicle ...

Page 23: ...22 Customer Service Guide VIII Wiring Schematic ...

Page 24: ...23 Customer Service Guide IX Expanded View ...

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