Mercedes Benz Truck R 320 BLUETEC Technical T-46_10-32G Date: 081202 Steering - Steering Shaft Groaning/Cracking Noise
Mercedes Benz Truck R 320 BLUETEC Technical T-46_10-32G Date: 081202 Steering - Steering Shaft Groaning/Cracking Noise Date: December 2, 2008 Order No.: T-B-46.10/32g Supersedes: T-B-46.10/32f dated July 11, 2008 Group: 46 Mercedes Benz Truck R 320 BLUETEC Page 139 Revision History SUBJECT: All Model 164 / 251 Vehicles Groaning/Cracking Noise from Steering Shaft Area If you receive customer reports in the above model vehicles of groaning or dull, heavy cracking noises from the steering shaft area when turning the steering wheel / moving off or braking, this may be emanating from the bearing and housing of the upper steering shaft (firewall pivot point) or the steering coupling (lower steering shaft). Perform the following to resolve. NOTE: In vehicles with Airmatic (code 489), perform the check at the Sport damping setting (where the ADS valves are not switched) in order to rule out noises from the ADS valves. If the condition changes at the Sport damping setting, ref...