VW TRANSPORTER T5 ABS PUMP & ECU CONTROL MODULE UNIT 7H0614117A 7H0907379S

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Genuine used Volkswagen Transporter T5 ABS pump, hydraulic modulator and ECU control module assembly, supplied with matching part numbers 7H0614117A and 7H0907379S.

This assembly forms the main control unit for the vehicle’s Anti-lock Braking System and works with the wheel-speed sensors, brake hydraulic system and vehicle electronics to help prevent wheel lock-up during hard braking.

ABS Pump / Hydraulic Unit Number: 7H0614117A

ABS ECU / Control Module Number: 7H0907379S

VW OE Numbers: 7H0 614 117 A / 7H0 907 379 S

ABS System Type: MK26

Part Type: ABS Pump / Hydraulic Modulator / ABS ECU Control Module

Position: Engine Bay / Brake Hydraulic System

Manufacturer: Volkswagen / OEM braking-system manufacturer

Condition: Genuine used complete unit

Compatibility

Suitable for selected:

* Volkswagen Transporter T5

* Volkswagen Caravelle T5

* Volkswagen Multivan T5

* Selected panel van, Kombi and passenger variants

* Approx. 2006–2009 applications using the matching ABS system

Used-parts specialists list the exact combination 7H0614117A + 7H0907379S for Volkswagen Transporter T5 models, particularly around the 2006–2009 production period.

Compatibility must be confirmed using both numbers rather than vehicle year alone.

Technical Information

The ABS assembly consists of two main sections:

* Hydraulic ABS pump / modulator

* Electronic ABS control module / ECU

The hydraulic section controls brake-fluid pressure to individual wheel circuits.

The electronic control module receives information from the vehicle’s wheel-speed sensors and other systems and determines when intervention is required.

During heavy braking, the ABS system can rapidly reduce and reapply brake pressure to help prevent individual wheels from locking.

This allows the driver to retain greater steering control while braking.

ABS System Information

The ABS ECU continuously monitors wheel-speed information while the vehicle is moving.

If one wheel begins slowing significantly faster than the others during braking, the control unit may interpret this as impending wheel lock.

The hydraulic modulator then adjusts pressure within the affected brake circuit.

Depending on vehicle specification, the ABS module may also exchange information with systems such as:

* Electronic stability control

* Traction-control functions

* Engine ECU

* Instrument cluster

* Brake-light / brake-pedal signal

* Steering or yaw-related systems where fitted

The exact functions depend on the vehicle’s equipment level.

MK26 ABS System

Remanufacturing references identify the 7H0907379S / 7H0614117A combination as a Volkswagen Transporter MK26 ABS unit.

Associated unit numbers can include:

ABS ECU References:

* 7H0907379S

* 7H0 907 379 S

Hydraulic Unit References:

* 7H0614117A

* 7H0 614 117 A

Some units may also carry additional manufacturer numbers on the electronic module, hydraulic block or pump motor.

When replacing the unit, all visible numbers should be compared with the original wherever possible.

Common Symptoms of a Faulty ABS Pump / Module

Typical symptoms may include:

* ABS warning light illuminated

* Traction-control warning light

* Brake-system warning message

* ABS system disabled

* No communication with the ABS ECU

* Wheel-speed sensor faults that remain after sensor replacement

* ABS pump motor fault codes

* Brake-pressure sensor faults

* Internal control-module faults

* Intermittent ABS operation

* ABS pump running incorrectly

* Vehicle entering reduced stability-control operation

A faulty module can sometimes produce several apparently unrelated braking-system fault codes.

Important Diagnostic Information

Before replacing the ABS unit, carry out a full diagnostic scan.

Check:

* Wheel-speed sensors

* Wheel-speed sensor wiring

* ABS fuses

* Main power supply

* Earth connections

* ABS electrical connector

* Battery voltage

* Brake-fluid level

* Brake-pressure sensor readings

* CAN communication wiring

* Wheel bearings / reluctor rings where applicable

A wheel-speed sensor or damaged sensor ring can produce an ABS warning without any fault in the pump itself.

Low battery voltage or poor electrical connections can also cause communication and control-module faults.

Hydraulic System Information

Because the hydraulic modulator forms part of the brake-fluid circuit, installation requires opening the vehicle’s braking system.

Brake lines must be connected to the correct hydraulic ports.

After installation, the braking system must be properly bled.

Air trapped in the ABS hydraulic unit can result in:

* Soft brake pedal

* Excessive pedal travel

* Reduced braking performance

* Incorrect ABS operation

Diagnostic activation of the ABS pump and valves may be necessary during the bleeding process.

Installation

Replacement should ideally be carried out by a competent technician familiar with ABS braking systems.

Installation normally involves:

* Disconnecting the battery where required

* Disconnecting the ABS electrical connector

* Removing hydraulic brake lines

* Removing the original pump/module

* Installing the replacement unit

* Reconnecting hydraulic lines

* Refilling / bleeding the braking system

* Coding the replacement control unit

* Clearing stored fault codes

* Performing road and diagnostic checks

Correct brake-fluid handling and system bleeding are essential.

Programming / Coding

Coding will normally be required when installing a used ABS control unit.

The ABS module contains vehicle-specific configuration information.

Depending on specification, coding may relate to:

* Vehicle type

* Engine

* Gearbox

* Brake-system configuration

* Stability-control equipment

* Other installed vehicle systems

Diagnostic equipment such as VCDS / VAG-compatible diagnostics may be required.

Where possible, record the coding from the original ABS module before removing it.

Used-unit feedback for this exact 7H0907379S application also reports successful replacement after transferring the original coding using VCDS.

Important Compatibility Note

Please compare before ordering:

* ABS pump number – 7H0614117A

* ABS ECU number – 7H0907379S

* Additional manufacturer numbers

* Electrical connector

* Hydraulic pipe arrangement

* Number and position of brake-line ports

* ABS / stability-control specification

* Vehicle production year

* Existing module coding

Matching both VW part numbers is strongly recommended.

Do not purchase based only on vehicle model, engine size or year because several different ABS units were used throughout T5 production.

Later T5 vehicles also use different ABS families and references, including MK61-type units, so visually similar units are not necessarily interchangeable.

Condition

Genuine Volkswagen used ABS pump and ECU control module assembly.

The unit may show normal signs of previous use, including:

* Surface marks

* Dirt

* Light corrosion on the aluminium hydraulic block

* Signs of removal or storage

Please inspect all listing photographs carefully and compare every visible identification number with your original unit.

As this is a braking-system electronic component, professional diagnosis and installation are strongly recommended.

Any identifying colour/security markings applied to the unit must remain intact in the event of a return.

Ideal genuine replacement for a faulty, damaged or non-communicating Volkswagen Transporter T5 ABS pump / ECU assembly, provided 7H0614117A and 7H0907379S match the original unit.