Mercedes Classe A W169 - Repair abs pump

Principle of the ABS block

What is the purpose of the ABS block?

It was Bosch that developed the first version of ABS block in the late 1970s. The purpose of the ABS block in a vehicle is to prevent, when the driver presses hard on the brake pedal, the wheels from locking.

The ABS system to keep control of the car

Before discussing the ABS block, it is important to understand the ABS system as a whole. We can notice for the Mercedes A-Class W169 vehicle manufacturer ...

• The ABS block: let's take a closer look at its components below...
• The magnetic targets: they modify the output signal, which is in the form of a square wave signal of variable frequency.
• The wheel speed sensors: they measure the speed of rotation of the wheels from 0 km/h.

The ABS block

The ABS block of the Mercedes A-Class W169 brand is made up of the following components, among others:

The hydraulic unit

Here are some of the components that make it up:

• The electronic distributor that nuances the pressure on the rear wheels.
• Solenoid valves of which each wheel has an intake solenoid valve and an exhaust solenoid valve.
• A hydraulic pump whose action moves the liquid stored in the accumulator to the master cylinder.

The ECU

It informs the driver of a malfunction with the help of a specific indicator on the dashboard.

The motor driving a hydraulic pump

It transfers hydraulic energy into mechanical energy.

The Mercedes A-Class W169 ABS block repair

How to recognize an ABS block failure

The causes are varied and the ones that show up most of the time are... The wheels lock up during hard braking, an electrical concern.

What are the services of the company Diag-Engine.fr?

Diag-Engine is a company known for its know-how in terms of Mercedes A-Class W169 car parts and others. Please note: Diag-Engine does not offer new ABS blocks.

How does it work?

The refurbishment of your ABS block and shipping is extremely fast.

Go to the Diag-Engine.fr store to select the make and model of your vehicle. Compare the part number with your ABS block. Then place your order to make the payment. At the same time, send us to the address that appears on the order form your failed part.

We are at your disposal by tel or email at the slightest doubt.

The address to which you must send it to us is listed at the bottom of the site.

Some customer comments

• The mechanic gave me an estimate of 1300 € to replace my ABS block. With Diag-Engine, it cost me 400 €. Thank you !
• I'm not used to leave a review when I buy a car, but here, I'm so happy with my Mercedes A Class W169 ABS block : 5 stars thank you !
• The ABS block is now reassembled and the brakes work like before !

Pay in 4 times without charge and receive an immediate response.