How the ABS block works

The ABS block: a Bosch invention

It was the German company Bosch that marketed an early version of the ABS block in the late 1970s. In the event of emergency braking, the ABS block ensures that the driver retains control of the car. Because locking the wheels in such a situation would make it slide down the road.

The ABS system quickly

The ABS block is an accessory to the general ABS system. It is discovered for the car manufacturer Renault Koleos ...

• The magnetic targets: they are in the form of a sequence of north and south poles. The alternation of the poles varies the output signal.
• The ABS block: the technical details that follow help to understand the decisive role of this accessory.
• The wheel speed sensors: each sensor is placed in front of a notched wheel, which induces a sinusoidal signal whose quality depends on the speed of rotation of the wheels.

The ABS block

In a Renault Koleos ABS block , we distinguish in particular:

The motor driving a hydraulic pump

It transfers hydraulic energy into mechanical energy.

The computer

It receives information that comes from each wheel sensor.

The hydraulic unit

• A hydraulic pump whose action moves the liquid stored in the accumulator to the master cylinder thus preventing the pedal from sinking.
• The electronic brake distributor, which has a complementary role managed by the ECU.
• Solenoid valves, of which each wheel is equipped with an intake solenoid valve and an exhaust solenoid valve.

Renault Koleos ABS block repair

What are the symptoms of a defective ABS block?

Most of the time, it is one or the other reason... The car is unstable on wet roads, an ABS sensor is defective.

What does the company Diag-Engine.fr offer?

Diag-Engine is a company located in the department of Eure for many years and expert in the replacement of the ABS block of the brand Renault Koleos and others. So you will not be able to buy new ABS blocks from Diag-Engine.

How to proceed?

You need to know the reference of your defective ABS block to order its repair. Then you just have to pay for the part present in your cart after selecting the make and model of car you own. Finally, send your defective ABS block to the indicated address as soon as possible.

From the moment we receive your ABS block, a few days are enough for you to receive it repaired.

You will find the address of Diag-Engine.fr at the bottom of the page.

Don't worry, if you are not sure about the choice of the ABS block, just ask us and we will let you know.

They are satisfied with the company Diag-Engine.fr

• The dealer asked me 1300 € to replace my ABS block. With Diag-Engine, it cost me only 350 €. Great thanks !
• The Abs block is reassembled and the brakes work as before !
• I don't usually leave a comment when buying on the internet, but here I do it without hesitation for my Renault Koleos ABS block : 5 stars thanks !

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