Principle of the ABS block

Why is the ABS block essential?

It was Bosch that marketed a first version of ABS block in the late 1970s. The anti-lock braking system is an emergency braking assistance, it helps to maintain control of the car by preventing the wheels from locking.

Focus on the ABS system

Before explaining the ABS block in detail, it is necessary to understand the entire ABS system. We distinguish for the car manufacturer BMW 7 series ...

• The ABS block: let's see in more detail the elements that make it up below...
• The magnetic targets: they vary the output signal which is in the form of a square signal of variable frequency.
• The wheel speed sensors: there are 2 types of them, namely inductive sensors consisting of, in particular, a permanent magnet and active sensors.

The ABS block

Let's look at some of the elements of the ABS block of the BMW 7 series model:

The ECU

It receives information directly from the brake pedal.

The hydraulic motor

This is an organ that transforms a flow rate into rotational speed and a pressure into operating torque. The rotational speed of the motor is proportional to the flow rate that feeds it.

The hydraulic power unit

Many components make it up including:

• Pressure accumulators which are none other than pressurized gas tanks that can hold a variable volume of a pressurized liquid.
• Solenoid valves of which each impeller is equipped with an inlet and an exhaust solenoid valve.
• A hydraulic pump whose action ejects the liquid accumulated in the accumulator to the master cylinder, which prevents the pedal from depressing.

The BMW 7 series ABS block reconditioning

How to recognize an ABS block HS.

The origins are numerous and those that often appear are: The ABS light is on on your dashboard, an ABS sensor is defective.

What does Diag-Engine.fr offer?

Diag-Engine is a French company that has largely proven itself in terms of its automotive expertise. Therefore, you will not find new ABS blocks at Diag-Engine.

How does it work?

As soon as we receive your part, we take care of its repair and send it back to you 2 days later.

Go to the Diag-Engine.fr store to define the make and model of your car. Compare the reference with the one of your ABS block. Then place your order to make your purchase. At the same time, send your malfunctioning part to the address on the transaction summary.

Can't find the part number? Give us a call and we'll help.

The address where you can send it to us is listed at the bottom of the site.

Some customer reviews

• I don't usually leave a review when I make a purchase, but here, I'm very eager to do so I'm happy for my BMW 7 series ABS block: 5 stars thank you!!
• The Abs block is now reassembled and the brakes work as before!"
• I was asked 1300 € to replace my ABS block. By going through Diag-Engine, I got it for 350 €. Phew thank you !

Put your order with your CB safely.