Mercedes Benz Truck GLK 350 Technical Problem # LI72-20_P-053602 Date: 120409 Body - Noise When Opening Liftgate In Upper End Position Noise when opening liftgate in upper end position

 Mercedes Benz Truck GLK 350 Technical Problem # LI72-20_P-053602 Date: 120409
Body - Noise When Opening Liftgate In Upper End Position
Noise when opening liftgate in upper end position
Topic number LI72.20-P-053602
Version 1
 Mercedes Benz Truck GLK 350 64
Design group 72.20 Rear door, tailgate
Date 04-09-2012
Validity MODEL 204.9 up to VIN end number 808353 with code 890
Reason for change
Complaint:
When the liftgate reaches the upper end position, a single banging noise can clearly be heard.
This may be accompanied by a visible jerking movement in the vicinity of the left hinge.
Cause:
Unfavorable cutout point in the liftgate drive and the resulting sudden stress relief in the kinematics of the liftgate system.
Remedy:
1. Perform variant coding of liftgate control (HKS) control unit via Xentry Diagnostics (XD):
Xentry Diagnostics => HKS control unit => Adaptations => Configuration =>
Manual settings => Variant coding.
2. Perform normalization of liftgate control:
Xentry Diagnostics => HKS control unit => Adaptations => Teach-in processes
=> Denormalization and normalization of liftgate control.
Note:
The variant coding is available as of add-on 2068 for XD DVD 11/11 and/or as of XD DVD 01/12.
Symptoms
Control unit/fault code