Wheels/Tires - Hard Metallic Knock from Front Wheel Bearing Are Hard, metallic knock from area of wheel bearing on front axle when cornering slowly or while parking
2010 Mercedes Benz Truck GL 350 BLUETEC (164.825) V6-3.0L DSL Turbo (642.820) Vehicle: All Technical Service Bulletins Wheels/Tires - Hard Metallic Knock from Front Wheel Bearing Are Hard, metallic knock from area of wheel bearing on front axle when cornering slowly or while parking Topic number L133.25-P-051401 Version 1 Design group 33.25 Axle housing, stub axle Date 04-09-2013 Validity Model 164 as of VIN 164 ###.#A 557 500 Model 251 as of VIN 251 ### #A104835 Reason for change Complaint: When negotiating a gentle corner at walking pace (5-8 km/h) or while parking / maneuvering, a single, loud metallic knock is heard from the area of the wheel bearing on the front axle. Cause: Wheel bearing bore in steering knuckle may not have sufficient press fit, therefore insufficient overlap between wheel bearing outer race and steering knuckle. Micro-movements result in the relevant noises. Remedy: Replace steering knuckle with wheel bearing. In the case of follow-up repair...