Brakes and Traction Control: Testing and Inspection

WM 0X03IN Running gear maintenance: visual inspection - brake lines/brake pads/brake discs

Checking

Brake hoses and lines

- Carry out visual inspection for leaks, damage, routing and corrosion.

Brake system: visual inspection of brake pads and brake discs for wear

WARNING

Risk of accidents if brake pads and brake discs are not replaced in time.

- Injury and material damage due to impaired braking effect.

-> The brake pads must be replaced when the brake pad warning indicator lights up, but no later than when there is a residual pad thickness of 2 mm.
-> Brake discs must be replaced on reaching the wear limits.

Information

- If brake pad wear is indicated by the warning light, the warning contact (sender including line and plug connection) must also be replaced.

- Replacing the warning contact can be avoided by replacing the brake pads no later than when the pad thickness is approx. 2.5 mm.

- Warning contacts must be replaced if the core of the wire is worn. Worn insulation is not important.

- However, if only the plastic part of the warning contact is worn, there is no need to replace it.

1. Visually inspect the brake pads for wear -arrows- (wear limit 2 mm).
Note:
From model year 2003 - model year 2007 -> 4X00IN05 Checking thickness of disc brake pads
As of model year 2009 -> 463602 Checking thickness of disc brake pads at front-> 463802 Checking thickness of disc brake pads at rear Testing and Inspection





Checking brake pads

2. Carry out a visual inspection of the brake discs for wear -> 4600TW00 Technical data/brake wear limits.