Check tires for damage and crack formations - AP40.10-P-4051GM

MODEL 460, 461, 463 

Fig 1: Identifying New Tire

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Shoulder Wear On Front Tire

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Center Wear On Rear Tire

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Equal Wear On Rear Tire

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

23.3.11

Information on depth of tire tread measurement on main tread added

Step 5

	Checking
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
1	Hoist vehicle with lifting platform until wheels are clear of ground		AR00.60-P-1000G
2	Check mileage and manufacture date of tires	Model 461, 463 with code (979) Special protection version Replace the tires of the wheel-and-tire assemblies and spare wheel: after max. 20, 000 km or if the manufacture date is older than 3 years
	Information on tires / rims		AH40.10-P-9411-01A
3	Check tires on all wheel-and-tire assemblies	Check tread as well as outer and inner sidewalls on all tires for signs of damage such as cuts, punctures, cracks, breakouts, separation and ingressed foreign matter. If damage is present ↓ Replace tire:
		Model 461, 463 with code (979) Special protection version and Rodgard run flat system	AR40.10-P-1030PM
4	Check tire wear pattern on all wheel-and-tire assemblies	If necessary, interchange the wheel-and-tire assemblies on the front and rear axle or:↓ Replace tire:	AP40.10-P-4050G
		Model 461, 463 with code (979) Special protection version and Rodgard run flat system Greater wear at the shoulder (heel-and-toe wear) compared to the center of the tire is normal for the front wheel-and-tire assemblies. This wear pattern will be more pronounced if the vehicle has been driven for longer periods when the tire inflation pressure was too low and if the vehicle was driven frequently in city traffic or around tight corners. Vehicles with shift-on-the-fly four wheel drive: At the tires on the rear wheel-and-tire assemblies, the tire usually wears evenly over the entire tire tread, whereby the wear at the center of the tire tread is usually slightly greater than in the shoulder areas. Vehicles with permanent all-wheel drive: Since the front wheel-and-tire assemblies also take on traction, the tread center wear on the tires of the rear wheel-and-tire assemblies is considerably less than with pure rear wheel drive. The wear is more evenly distributed over the entire tire tread.	AR40.10-P-1030PM
	Measure
5	Measure depth of tread of all tires and note measured values on the maintenance sheet	The main tread along the entire circumference must have a tread depth of at least 1.6 mm. Measure depth of tread at point of greatest wear. Perform measurement at outside, inside and center of main tread. The wide tread grooves in the center area of the tread, which accounts for roughly 3/4 of the tread width is deemed to be the main tread. For safety reasons tires should be replaced before reaching the minimum tread depth: On summer tires at approx. 2 to 3 mm tread depth, Winter tires at approx. 4 mm tread depth.
	Notes on measuring tire tread depth		AH40.10-P-0006-01T
			Fig 5
6	Lower vehicle

Fig 5: Identifying Brake Pad Check Gauge (211 589 06 23 00)

Courtesy of MERCEDES-BENZ USA