Fiat Siena - Repair abs pump

How ABS works

Vehicle stability with ABS

It's not always known, but anti-lock braking has been around since 1920 in the airline industry: it was necessary to prevent airplanes from skidding on landing. The acronym ABS comes from the German "Antiblockiersystem". It is an anti-lock wheel system that ensures the control of the vehicle in case of sudden braking.

The ABS system to prevent wheel lockup

Before explaining the ABS block, it is necessary to understand the ABS system completely. So we discover for the Fiat Siena brand ...

• The magnetic targets: they are represented as a sequence of north and south poles. Alternating the poles changes the output signal.
• The ABS block: how is it composed? This is what we will discover ...
• The wheel speed sensors: each sensor is placed in front of a target, a gear also called phonic wheel.

The ABS block

Let's see the partial composition of the ABS block Fiat Siena:

The hydraulic unit

Here are some of the elements that compose it...

• The electronic brakeforce distribution, which is an additional function managed by the ECU.
• Pressure accumulators, which are pressurized gas reservoirs that can hold a variable volume of a pressurized liquid.
• A hydraulic pump whose action moves the liquid stored in the accumulator to the master cylinder, which prevents the pedal from sinking.

The ECU

As soon as a wheel tends to lock, it regulates the solenoid valves and the hydraulic pump.

The hydraulic motor

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

The Fiat Siena ABS block reconditioning

How to recognize an out-of-service ABS block?

It is very often one or the other reason: The ABS warning light is on your dashboard or the brake pressure regulation is not working normally.

What are the services of the company Diag-Engine.co.uk?

Diag-Engine is a company specializing in the repair of the ABS block of all brands. Therefore, you will not find new ABS blocks at Diag-Engine.

How does it work?

7 days are enough for you to get your ABS block back in working condition.

You have to locate the reference of your defective ABS block to order its repair. Then, you just have to make your payment the part present in your cart after choosing the make and model of vehicle that belongs to you. Thus, ship your malfunctioning ABS block to the indicated address immediately after.

Don't worry, if you have any doubt about the model of the ABS block, just contact us and we will tell you.

The address to which you should send it is listed in the footer of the site.

They trusted us

• The Abs block is now reassembled and the braking has regained all its power!"
• I was given an estimate of 1400 € to replace my ABS block. Thanks to Diag-Engine, I got it for only 380 €. Super thank you!"
• I sent my ABS block to Diag-Engine and all the follow-up and service were top notch, from the verbal exchange to the repair and from the delay until the delivery.

Call a French company known for its know-how.