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Key Battery Information FormTechnical Service Bulletin # Mercedes Benz Truck GL 550 LI88-20_P-053585 Date: 130325

Key Battery Information FormTechnical Service Bulletin # Mercedes Benz Truck GL 550 LI88-20_P-053585 Date: 130325

Body - Corrosion Between Underride Guard & Front and Rear Bumpe

Corrosion of threaded connection between stainless steel underride guard and front and rear bumper

Topic number LI88.20-P-053585

Version 1

Design group 88.20 Bumpers

Date 03-25-2013

Validity X164 with

code (U89) Offroad appearance package

code (900) Chrome package

Reason for change

Complaint:

2011 Mercedes Benz Truck GL 550 (164.886) V8-5.5L (273.963) Page 150

Corrosion of threaded connection between stainless steel underride guard and front and/or rear bumper (see Figure 1).

Attachments

Cause:

Corrosion due to inadequate bolt quality.

Remedy:

Thoroughly clean underride guard with suitable polish; replace bolts

Important:

Use plastic washers otherwise the chrome plating will be damaged when the bolts are tightened. Do not use wax!

Valid for: Damage code: 8820A, 8820B, 8810C, 8830B Damage type: 47 - corroded/oxidized

Symptoms

2011 Mercedes Benz Truck GL 550 (164.886) V8-5.5L (273.963) Page 151