Mercedes Classe R W251 - Repair abs pump

What is the ABS block

The ABS block: a Bosch invention

For the record, the ABS system has been around since 1920 in the airline industry to prevent airplanes from skidding on landing. The function of the ABS block in a car is to prevent, during emergency braking, the wheels from locking.

The ABS system quickly

Before explaining the ABS block in detail, it is important to understand the ABS system completely. There are for the car manufacturer Mercedes R-Class W251 ...

• The magnetic targets: they are represented as a succession of north and south poles. The alternation of the poles changes the output signal.
• The wheel speed sensors: each sensor is placed in front of a target, namely a gear wheel that is also called phonic wheel.
• The ABS block: let's see in more detail the elements that make it up below...

The ABS block

In a Mercedes R-Class W251 car ABS block, we distinguish in particular...

The hydraulic unit

It is composed of several elements including:

• Pressure accumulators which are tanks of pressurized gas used to provide a large flow for a short period of time.
• The electronic distributor that modulates the pressure on the rear wheels.
• Solenoid valves with a presence of ABS regulation on the rear wheels.

The hydraulic motor

It uses the flow of oil that is pushed into the hydraulic circuit by a hydraulic pump and transforms it by a rotary motion to drive another device such as for example the differential or the fan, etc.

The ECU

It is the part that receives the signal that comes directly from the brake pedal.

The Mercedes R-Class W251 ABS block reconditioning

Main manifestations of ABS block out of order

Most of the time it is one or the other reason:The car is unstable on icy track, a problem of electrical nature.

What does Diag-Engine offer?

Diag-Engine is a company known for its expertise in Mercedes R-Class W251 ABS block and others. It is important to understand that Diag-Engine does not offer any new ABS blocks.

Concretely...

As soon as we receive your part, we will take care of its repair and send it back to you 48 hours later.

The method of operation is extremely fast. You select the make corresponding to your vehicle, then the model and finally the name of the manufacturer of the ABS block that corresponds to it. All that's left is to proceed to purchase and ship your broken ABS block to us.

The address to which you can send it is visible in the footer.

Don't worry, if you have any doubts about the choice of ABS block, just ask us so that we can tell you.

They trusted us

Many individuals and professionals wanted to testify for the reconditioning of their ABS block.

• The Abs block is now reassembled and the braking has regained all its power!
• I am not in the habit of leaving a comment when buying on the internet, but there, I do it without hesitation for my ABS block Mercedes R Class W251: 5 stars thank you!"
• The dealer asked me 1000 € to replace my ABS block. Thanks to Diag-Engine, I got it for 380 €. Great thank you !

Go to a French company known for its know-how.

We repair the whole car or motorcycle abs block that our customers often call by the following terms: pressure sensor - abs pump - hydraulic block - abs calculator - abs box - abs kit - hydraulic group - abs block esp. Please note that we do not sell new or second hand products!