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Check tires for damage and cracks - AP40.10-P-4051Z

MODEL 230 

Fig 1: Identifying Shoulder Wear On Front Tire
G07533016Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Center Wear On Rear Tire
G07533017Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Interchange Wheel-And-Tire Assemblies (Vehicles Without Mixed Tires)
G07533018Courtesy of MERCEDES-BENZ USA
INSPECT Checking     
DANGER 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. -
1 Hoist vehicle with lifting platform until wheels are free    
2 Check tires on front and rear axle 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 tires subject to separate repair order.
3 Assess wear pattern and tread depth of tires on front and rear axle Only when the acceptance inspection item as per the "Acceptance inspection test record for service on vehicle" was not conducted. In event of unusual tire pattern: ↓
Determine cause and, where necessary, repair subject to separate repair order. At the latest when reaching the minimum tread depth: ↓
Replace tires subject to separate repair order.
MEASURING Measure     
4 Measure depth of tread of all tires and note measured values on the maintenance sheet Only where a tread depth measurement is required as part of the service according to the service sheet.  
IMPORTANT Notes on measuring tire tread depth   AH40.10-P-0006-01T
    For safety reasons, before reaching the minimum tread depth,
- conventional summer tires with approx. 3 mm tread depth,
- PAX system summer tires with 3 mm tread depth, and
- winter tires with approx. 4 mm tread depth should be replaced.
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. Conduct measurement on outside, inside and on the center of the main tread in the tread grooves with tread wear indicator (TWI).
The stated tread depths are valid in the Federal Republic of Germany, differently phrased country-specific regulations must be observed accordingly.
    SPECIAL TOOL Brake pad test gauge Fig 4
At the latest when reaching the minimum tread depth: ↓
Replace tires subject to separate repair order.
5 Interchange wheel-and-tire assemblies on front and rear axles If necessary, and only on vehicles without mixed tires
NOTES Maintain running direction of wheel-and-tire assemblies. Otherwise handling characteristics and handling comfort may be impaired and tire wear increased.
 
6 Lower vehicle    
Fig 4: Identifying Brake Pad Check Gauge (211 589 06 23 00)
G07533019Courtesy of MERCEDES-BENZ USA