Abs Control Module And Hydraulic Unit Assembly Overview

ABS/EDL/ASR/ESP, TRW 

Fig 1: Identifying Assembly Overview: Hydraulic Unit, ABS TRW (ABS/EDS/ASR/ESP)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1. ABS Control Module (w/EDL) -J104-

   It is not possible to separate the control module and hydraulic unit.

   • Removing and installing, refer to CONTROL MODULE AND HYDRAULIC UNIT .
2. ABS Hydraulic Unit -N55-

   It is not possible to separate the control module and hydraulic unit.

   • Removing and installing, refer to CONTROL MODULE AND HYDRAULIC UNIT .
3. Brake Line
   • To right front brake caliper.
   • Identification: 5.25 mm diameter and tube fitting with M10 x 1 thread
   • Marked on hydraulic unit with "VR".
4. Brake Line
   • To left rear brake caliper.
   • Identification: 5.25 mm diameter and tube fitting with shorter thread M12 x 1
   • Marked on hydraulic unit with "HL".
5. Brake Line
   • To right rear brake caliper.
   • Identification: 5.25 mm diameter and tube fitting with M10 x 1 thread
   • Marked on hydraulic unit with "HR".
6. Brake Line
   • To left front brake caliper.
   • Identification: 5.25 mm diameter and tube fitting with shorter thread M12 x 1
   • Marked on hydraulic unit with "VL".
7. Brake Line
   • Master brake cylinder/primary piston circuit to hydraulic control unit.
   • Identification: 8.5 mm or 6 mm diameter and tube fitting with longer thread M12 x 1
   • Marked on hydraulic unit with "HZ1".
8. Brake Line
   • Master brake cylinder/secondary piston circuit to hydraulic unit.
   • Identification: 8.5 mm or 6 mm and tube fitting with longer thread M12 x 1
   • Marked on hydraulic unit with "HZ2".
9. Heat Shield

   Allocation.

10. Bolt
    • 12 Nm
11. Brake Booster
    • On vehicles with a hydraulic brake booster, a vacuum sensor is installed. Refer to the BRAKE BOOSTER VACUUM SENSOR .
    • Removing and installing, refer to BRAKE BOOSTER .
12. Bracket
13. Nut
    • 20 Nm
14. Rubber Insulation
15. Bolt
    • 10 Nm
16. Bracket