Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2001A6 AVANT QUATTROREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLBRAKE SYSTEM - ABSABS/ESP BOSCH 5.7, ASSEMBLY OVERVIEW
2001 Audi A6 Avant Quattro
ABS/ESP Bosch 5.7, assembly overview
2001 Audi A6 Avant QuattroSECTION ABS/ESP Bosch 5.7, assembly overview
NOTE:
The following list refers to items in Fig 1.
- Bracket for hydraulic control unit
- Removing and installing, see HYDRAULIC CONTROL UNIT, REMOVING AND INSTALLING
- Vacuum pump for brake servo
- Only on gasonline engines in conjunction with an automatic transmission
- ABS control module (w/EDL) - J104-
- The ABS hydraulic unit -N55- and the ABS control module (w/EDL) -J104- are J104- are combined to form the hydraulic control unit.
- Removing and installing, see HYDRAULIC CONTROL UNIT, REMOVING AND INSTALLING
- ABS hydraulic unit -N55- with ABS control module (w/EDL) -J104-
- The ABS hydraulic unit -N55- and the ABS control module (w/EDL) -J104- are combined to form the hydraulic control unit.
- Removing and installing, see HYDRAULIC CONTROL UNIT, REMOVING AND INSTALLING
- Sender 1 for brake booster -G201-
- Bolted onto hydraulic control unit
- Tightening torque 20 Nm
- ABS hydraulic unit -N55- with ABS control module (w/EDL) -J104-
- Rotor for right-front speed sensor
- Checking, see ROTOR, CHECKING
- Right front ABS wheel speed sensor -G45-
- Removing and installing, see ABS WHEEL SPEED SENSOR, REMOVING AND INSTALLING
- Brake fluid level warning switch -F34-
- Instrument cluster
- Anti-slip control switch - E132-
- Installation location: on the center console
- Steering angle sensor - G85- for ESP
- Installation location: in the coil connector with slip ring on steering column
- Performing zero position compensation
=> VAS 5051 vehicle diagnostic, testing and information system
- Parking brake warning light switch -F9-
- Installation location: on the parking brake lever assembly
- Rotor for right-rear speed sensor
- Checking: See ROTOR, CHECKING (FWD), or ROTOR, CHECKING (AWD).
- Right rear ABS wheel speed sensor -G44-
- Removing and installing: See ABS WHEEL SPEED SENSOR, REMOVING AND INSTALLING (FWD vehicles), or ABS WHEEL SPEED SENSOR, REMOVING AND INSTALLING (AWD vehicles).
- Sensor for transverse acceleration -G200- and sender for rotation rate - G202-
- Installation location: underneath the radio
- Removing and installing, see SENSOR FOR TRANSVERSE ACCELERATION -G200- AND SENDER FOR ROTATION RATE -G202- FOR BOSCH 5.7, REMOVING AND INSTALLING
- Left rear ABS wheel speed sensor -G46-
- Removing and installing: See ABS WHEEL SPEED SENSOR, REMOVING AND INSTALLING (FWD), or ABS WHEEL SPEED SENSOR, REMOVING AND INSTALLING (AWD).
- Rotor for rear left speed sensor
- Checking: See ROTOR, CHECKING (FWD), or ROTOR, CHECKING (AWD).
- Traction control indicator light -K86-
- Installation location: in instrument cluster
- For further information refer to the owner's manual.
- ABS warning light -K47-
- Installation location: in instrument cluster
- For further information refer to the owner's manual.
- Warning light for brake system -K118-
- Installation location: in instrument cluster in driver information system
- For further information refer to owner's manual.
- Brake light switch -F-
- Removing and installing brake light switch, see ABS/ESP SYSTEM COMPONENTS, REMOVING AND INSTALLING
- Adjusting, see ABS/ESP SYSTEM COMPONENTS, REMOVING AND INSTALLING
- Rotor for front left speed sensor
- Checking, ROTOR, CHECKING
- Left front ABS wheel speed sensor -G47-
- Removing and installing, see ABS WHEEL SPEED SENSOR, REMOVING AND INSTALLING
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.