Comline has issued a new technical bulletin – designed to address a common fitment issue relating to brake discs with integrated ABS rings. These are prevalent on Citroën and Peugeot models.

Comline’s brake disc range includes many applications with factory-fitted ABS rings; however, technicians have reported issues with ABS sensor alignment when fitting them – usually due to corrosion.

Corrosion around the ABS sensor mounting point can push the sensor out of place; therefore, when a new disc is fitted, this closes the required ‘air gap’ between the ABS sensor and ABS ring – causing them to touch.

Warning signs and symptoms

• The ABS warning light will appear immediately after the brake disc is installed.
• The ABS sensor may damage the ABS ring on the new disc.

Comline’s recommended solution

To ensure a correct installation, avoid damage or returns, follow these steps:

1. Remove the ABS sensor.
2. Clean any corrosion from the sensor mounting point or guide tube.
3. Inspect the sensor – replace if damaged.
4. Install the new brake disc, ensuring correct air gap between ABS sensor and ABS ring.
5. Test the ABS system to confirm correct operation.

What’s in Comline’s brake disc range?

Comline’s brake disc range comprises of more than 1,350 applications. The majority of these feature an anti-corrosion coating and cover 90% of European, Japanese and Korean passenger cars and LCVs.

The coated brake discs undergo a nine-stage process: pre-degreasing, first and second ultrasonic degreasing, first and second water washing, drying, coating, baking and, finally, appearance checking.

The discs are rigorously tested too – both in the manufacturing factory and within Comline’s own quality laboratory; for example, they undergo 240 hours of salt spray testing to demonstrate durability and coating corrosion resistance. Each disc is also checked for ‘run out’, thickness variation and dynamic balance.

For more information about Comline, go to www.comline.uk.com