Notes On Damage And Stone Chipping Repairs On Laminated Glass Windows - AH67.10-P-0003-01A

The instructions given apply for the Federal Republic of Germany. Other country-specific instructions must be observed accordingly.

Model all (4xWD) 

Model all (BUS, Light transporter) 

Model all (CAR) 

Model all (Light transporter) 

Model all (smart) 

The illustrated damage profiles (stone marks in front window) can be repaired satisfactorily and economically. A repair set is required for this.

Pay attention to the instructions for use given by the manufacturer.

Repair of stone marks is legally permitted in Federal Republic of Germany; however, not at all points on the windshield. Before repairing damaged windshields, always observe the following information.

After the repair, a visible point with a size of approx. 2 mm (0.08") diameter can remain. 

Repair damage to the outside surface  of the window only.

Courtesy of MERCEDES-BENZ USA

Preconditions for repair of stone marks 

• Damage to the inside of the windshield or to the plastic laminate is not permitted.
• The film may not peel off the glass panes in the windshield.

  "Air bubbles" that form between the glass pane and the film indicate that the film peels off the glass panes.

• No cracks up to outer edge of window.
• No cracks that end at rubber window seal.
• Damage must lie outside the edge zone (min. 100 mm (3.94") distance to edge) of the windshield.
• Ensure that moisture has not penetrated into the damaged point (seal damage point immediately after damage using duct tape, and repair it as soon as possible).
• The diameter of the chip should not exceed 5 mm (0.20").
• The diameter of the stone chip damage must be less than 26 mm (1.02"), incl. all radial cracks extending from the point of impact.
• No visibility-impairing scratches in long-range field of vision.
• Only use the repair method if the damaged area is outside the driver's long-range field of vision.

  The long-range field of vision has a width of 290 mm (11.42"). It is centered with the center point of the steering wheel and is limited at the top and bottom by the area swept by the windshield wipers.

If at least one of the preconditions is not met, replace the windshield. 

Field of view for single-arm wiper, example shown on MODEL 210 

Courtesy of MERCEDES-BENZ USA

Field of view for two-arm wiper, example shown on MODEL 463 

Courtesy of MERCEDES-BENZ USA

Assessment of warranty coverage 

• Crack formation as a result of stone chipping 
  • Crack formation as a result of stone chipping is not covered by warranty.
  • Clarify the causes of cracks or peeling on the windshield. To do this, check the cracks and peeled areas for stone chipping using a flashlight and magnifying glass.

    Only if it can be clearly shown that the glass damage is due to a manufacturing defect or factory installation fault, and no trace of stone chipping can be found, can the broken glass be invoiced to Daimler AG.

  • In the case of damage covered by warranty, the damage must be proven by means of clear photographs of the damaged point or the original windshield.
  • Any costs resulting from stone chipping must be settled with the relevant insurance company.
• Information on documentation 
  • The vehicle documents are to be clearly photographed next to the relevant crack or peeling.
  • The crack or area peeled off is to be highlighted by a white surface (e.g. paper) for better identification when taking a photo.
  • After removing the windshield, the edge of the window pane is to be photographed (start of crack).

This documentation also serves to make any damage on the interior window visible. 

If the proof is not clearly visible or documented, the warranty claim can be rejected. 

See information in the "Warranty Procedure Manual" too.